Added boost header

This commit is contained in:
Christophe Riccio
2012-01-08 01:26:07 +00:00
parent 9c3faaca40
commit c7d752cdf8
8946 changed files with 1732316 additions and 0 deletions

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//
// detail/array.hpp
// ~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_ARRAY_HPP
#define BOOST_ASIO_DETAIL_ARRAY_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_STD_ARRAY)
# include <array>
#else // defined(BOOST_ASIO_HAS_STD_ARRAY)
# include <boost/array.hpp>
#endif // defined(BOOST_ASIO_HAS_STD_ARRAY)
namespace boost {
namespace asio {
namespace detail {
#if defined(BOOST_ASIO_HAS_STD_ARRAY)
using std::array;
#else // defined(BOOST_ASIO_HAS_STD_ARRAY)
using boost::array;
#endif // defined(BOOST_ASIO_HAS_STD_ARRAY)
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_ARRAY_HPP

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//
// detail/array_fwd.hpp
// ~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_ARRAY_FWD_HPP
#define BOOST_ASIO_DETAIL_ARRAY_FWD_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
namespace boost {
template<class T, std::size_t N>
class array;
} // namespace boost
// Standard library components can't be forward declared, so we'll have to
// include the array header. Fortunately, it's fairly lightweight and doesn't
// add significantly to the compile time.
#if defined(BOOST_ASIO_HAS_STD_ARRAY)
# include <array>
#endif // defined(BOOST_ASIO_HAS_STD_ARRAY)
#endif // BOOST_ASIO_DETAIL_ARRAY_FWD_HPP

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//
// detail/atomic_count.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP
#define BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
// Nothing to include.
#elif defined(BOOST_ASIO_HAS_STD_ATOMIC)
# include <atomic>
#else // defined(BOOST_ASIO_HAS_STD_ATOMIC)
# include <boost/detail/atomic_count.hpp>
#endif // defined(BOOST_ASIO_HAS_STD_ATOMIC)
namespace boost {
namespace asio {
namespace detail {
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
typedef long atomic_count;
#elif defined(BOOST_ASIO_HAS_STD_ATOMIC)
typedef std::atomic<long> atomic_count;
#else // defined(BOOST_ASIO_HAS_STD_ATOMIC)
typedef boost::detail::atomic_count atomic_count;
#endif // defined(BOOST_ASIO_HAS_STD_ATOMIC)
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_ATOMIC_COUNT_HPP

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//
// detail/base_from_completion_cond.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
#define BOOST_ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/completion_condition.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename CompletionCondition>
class base_from_completion_cond
{
protected:
explicit base_from_completion_cond(CompletionCondition completion_condition)
: completion_condition_(completion_condition)
{
}
std::size_t check_for_completion(
const boost::system::error_code& ec,
std::size_t total_transferred)
{
return detail::adapt_completion_condition_result(
completion_condition_(ec, total_transferred));
}
private:
CompletionCondition completion_condition_;
};
template <>
class base_from_completion_cond<transfer_all_t>
{
protected:
explicit base_from_completion_cond(transfer_all_t)
{
}
static std::size_t check_for_completion(
const boost::system::error_code& ec,
std::size_t total_transferred)
{
return transfer_all_t()(ec, total_transferred);
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP

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//
// detail/bind_handler.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_BIND_HANDLER_HPP
#define BOOST_ASIO_DETAIL_BIND_HANDLER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Handler, typename Arg1>
class binder1
{
public:
binder1(const Handler& handler, const Arg1& arg1)
: handler_(handler),
arg1_(arg1)
{
}
binder1(Handler& handler, const Arg1& arg1)
: handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)),
arg1_(arg1)
{
}
void operator()()
{
handler_(static_cast<const Arg1&>(arg1_));
}
void operator()() const
{
handler_(arg1_);
}
//private:
Handler handler_;
Arg1 arg1_;
};
template <typename Handler, typename Arg1>
inline void* asio_handler_allocate(std::size_t size,
binder1<Handler, Arg1>* this_handler)
{
return boost_asio_handler_alloc_helpers::allocate(
size, this_handler->handler_);
}
template <typename Handler, typename Arg1>
inline void asio_handler_deallocate(void* pointer, std::size_t size,
binder1<Handler, Arg1>* this_handler)
{
boost_asio_handler_alloc_helpers::deallocate(
pointer, size, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1>
inline void asio_handler_invoke(Function& function,
binder1<Handler, Arg1>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1>
inline void asio_handler_invoke(const Function& function,
binder1<Handler, Arg1>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Handler, typename Arg1>
inline binder1<Handler, Arg1> bind_handler(Handler handler,
const Arg1& arg1)
{
return binder1<Handler, Arg1>(handler, arg1);
}
template <typename Handler, typename Arg1, typename Arg2>
class binder2
{
public:
binder2(const Handler& handler, const Arg1& arg1, const Arg2& arg2)
: handler_(handler),
arg1_(arg1),
arg2_(arg2)
{
}
binder2(Handler& handler, const Arg1& arg1, const Arg2& arg2)
: handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)),
arg1_(arg1),
arg2_(arg2)
{
}
void operator()()
{
handler_(static_cast<const Arg1&>(arg1_),
static_cast<const Arg2&>(arg2_));
}
void operator()() const
{
handler_(arg1_, arg2_);
}
//private:
Handler handler_;
Arg1 arg1_;
Arg2 arg2_;
};
template <typename Handler, typename Arg1, typename Arg2>
inline void* asio_handler_allocate(std::size_t size,
binder2<Handler, Arg1, Arg2>* this_handler)
{
return boost_asio_handler_alloc_helpers::allocate(
size, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2>
inline void asio_handler_deallocate(void* pointer, std::size_t size,
binder2<Handler, Arg1, Arg2>* this_handler)
{
boost_asio_handler_alloc_helpers::deallocate(
pointer, size, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2>
inline void asio_handler_invoke(Function& function,
binder2<Handler, Arg1, Arg2>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2>
inline void asio_handler_invoke(const Function& function,
binder2<Handler, Arg1, Arg2>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2>
inline binder2<Handler, Arg1, Arg2> bind_handler(Handler handler,
const Arg1& arg1, const Arg2& arg2)
{
return binder2<Handler, Arg1, Arg2>(handler, arg1, arg2);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
class binder3
{
public:
binder3(const Handler& handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3)
: handler_(handler),
arg1_(arg1),
arg2_(arg2),
arg3_(arg3)
{
}
binder3(Handler& handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3)
: handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)),
arg1_(arg1),
arg2_(arg2),
arg3_(arg3)
{
}
void operator()()
{
handler_(static_cast<const Arg1&>(arg1_),
static_cast<const Arg2&>(arg2_),
static_cast<const Arg3&>(arg3_));
}
void operator()() const
{
handler_(arg1_, arg2_, arg3_);
}
//private:
Handler handler_;
Arg1 arg1_;
Arg2 arg2_;
Arg3 arg3_;
};
template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
inline void* asio_handler_allocate(std::size_t size,
binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
{
return boost_asio_handler_alloc_helpers::allocate(
size, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
inline void asio_handler_deallocate(void* pointer, std::size_t size,
binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
{
boost_asio_handler_alloc_helpers::deallocate(
pointer, size, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2,
typename Arg3>
inline void asio_handler_invoke(Function& function,
binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2,
typename Arg3>
inline void asio_handler_invoke(const Function& function,
binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
inline binder3<Handler, Arg1, Arg2, Arg3> bind_handler(Handler handler,
const Arg1& arg1, const Arg2& arg2, const Arg3& arg3)
{
return binder3<Handler, Arg1, Arg2, Arg3>(handler, arg1, arg2, arg3);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4>
class binder4
{
public:
binder4(const Handler& handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3, const Arg4& arg4)
: handler_(handler),
arg1_(arg1),
arg2_(arg2),
arg3_(arg3),
arg4_(arg4)
{
}
binder4(Handler& handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3, const Arg4& arg4)
: handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)),
arg1_(arg1),
arg2_(arg2),
arg3_(arg3),
arg4_(arg4)
{
}
void operator()()
{
handler_(static_cast<const Arg1&>(arg1_),
static_cast<const Arg2&>(arg2_),
static_cast<const Arg3&>(arg3_),
static_cast<const Arg4&>(arg4_));
}
void operator()() const
{
handler_(arg1_, arg2_, arg3_, arg4_);
}
//private:
Handler handler_;
Arg1 arg1_;
Arg2 arg2_;
Arg3 arg3_;
Arg4 arg4_;
};
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4>
inline void* asio_handler_allocate(std::size_t size,
binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
{
return boost_asio_handler_alloc_helpers::allocate(
size, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4>
inline void asio_handler_deallocate(void* pointer, std::size_t size,
binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
{
boost_asio_handler_alloc_helpers::deallocate(
pointer, size, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2,
typename Arg3, typename Arg4>
inline void asio_handler_invoke(Function& function,
binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2,
typename Arg3, typename Arg4>
inline void asio_handler_invoke(const Function& function,
binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4>
inline binder4<Handler, Arg1, Arg2, Arg3, Arg4> bind_handler(
Handler handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3, const Arg4& arg4)
{
return binder4<Handler, Arg1, Arg2, Arg3, Arg4>(handler, arg1, arg2, arg3,
arg4);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4, typename Arg5>
class binder5
{
public:
binder5(const Handler& handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
: handler_(handler),
arg1_(arg1),
arg2_(arg2),
arg3_(arg3),
arg4_(arg4),
arg5_(arg5)
{
}
binder5(Handler& handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
: handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)),
arg1_(arg1),
arg2_(arg2),
arg3_(arg3),
arg4_(arg4),
arg5_(arg5)
{
}
void operator()()
{
handler_(static_cast<const Arg1&>(arg1_),
static_cast<const Arg2&>(arg2_),
static_cast<const Arg3&>(arg3_),
static_cast<const Arg4&>(arg4_),
static_cast<const Arg5&>(arg5_));
}
void operator()() const
{
handler_(arg1_, arg2_, arg3_, arg4_, arg5_);
}
//private:
Handler handler_;
Arg1 arg1_;
Arg2 arg2_;
Arg3 arg3_;
Arg4 arg4_;
Arg5 arg5_;
};
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4, typename Arg5>
inline void* asio_handler_allocate(std::size_t size,
binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
{
return boost_asio_handler_alloc_helpers::allocate(
size, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4, typename Arg5>
inline void asio_handler_deallocate(void* pointer, std::size_t size,
binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
{
boost_asio_handler_alloc_helpers::deallocate(
pointer, size, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2,
typename Arg3, typename Arg4, typename Arg5>
inline void asio_handler_invoke(Function& function,
binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Function, typename Handler, typename Arg1, typename Arg2,
typename Arg3, typename Arg4, typename Arg5>
inline void asio_handler_invoke(const Function& function,
binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
typename Arg4, typename Arg5>
inline binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5> bind_handler(
Handler handler, const Arg1& arg1, const Arg2& arg2,
const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
{
return binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>(handler, arg1, arg2,
arg3, arg4, arg5);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_BIND_HANDLER_HPP

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//
// detail/buffer_resize_guard.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_BUFFER_RESIZE_GUARD_HPP
#define BOOST_ASIO_DETAIL_BUFFER_RESIZE_GUARD_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/limits.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
// Helper class to manage buffer resizing in an exception safe way.
template <typename Buffer>
class buffer_resize_guard
{
public:
// Constructor.
buffer_resize_guard(Buffer& buffer)
: buffer_(buffer),
old_size_(buffer.size())
{
}
// Destructor rolls back the buffer resize unless commit was called.
~buffer_resize_guard()
{
if (old_size_
!= std::numeric_limits<size_t>::max BOOST_PREVENT_MACRO_SUBSTITUTION())
{
buffer_.resize(old_size_);
}
}
// Commit the resize transaction.
void commit()
{
old_size_
= std::numeric_limits<size_t>::max BOOST_PREVENT_MACRO_SUBSTITUTION();
}
private:
// The buffer being managed.
Buffer& buffer_;
// The size of the buffer at the time the guard was constructed.
size_t old_size_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_BUFFER_RESIZE_GUARD_HPP

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//
// detail/buffer_sequence_adapter.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
#define BOOST_ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/buffer.hpp>
#include <boost/asio/detail/array_fwd.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class buffer_sequence_adapter_base
{
protected:
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
typedef WSABUF native_buffer_type;
static void init_native_buffer(WSABUF& buf,
const boost::asio::mutable_buffer& buffer)
{
buf.buf = boost::asio::buffer_cast<char*>(buffer);
buf.len = static_cast<ULONG>(boost::asio::buffer_size(buffer));
}
static void init_native_buffer(WSABUF& buf,
const boost::asio::const_buffer& buffer)
{
buf.buf = const_cast<char*>(boost::asio::buffer_cast<const char*>(buffer));
buf.len = static_cast<ULONG>(boost::asio::buffer_size(buffer));
}
#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
typedef iovec native_buffer_type;
static void init_iov_base(void*& base, void* addr)
{
base = addr;
}
template <typename T>
static void init_iov_base(T& base, void* addr)
{
base = static_cast<T>(addr);
}
static void init_native_buffer(iovec& iov,
const boost::asio::mutable_buffer& buffer)
{
init_iov_base(iov.iov_base, boost::asio::buffer_cast<void*>(buffer));
iov.iov_len = boost::asio::buffer_size(buffer);
}
static void init_native_buffer(iovec& iov,
const boost::asio::const_buffer& buffer)
{
init_iov_base(iov.iov_base, const_cast<void*>(
boost::asio::buffer_cast<const void*>(buffer)));
iov.iov_len = boost::asio::buffer_size(buffer);
}
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
};
// Helper class to translate buffers into the native buffer representation.
template <typename Buffer, typename Buffers>
class buffer_sequence_adapter
: buffer_sequence_adapter_base
{
public:
explicit buffer_sequence_adapter(const Buffers& buffer_sequence)
: count_(0), total_buffer_size_(0)
{
typename Buffers::const_iterator iter = buffer_sequence.begin();
typename Buffers::const_iterator end = buffer_sequence.end();
for (; iter != end && count_ < max_buffers; ++iter, ++count_)
{
Buffer buffer(*iter);
init_native_buffer(buffers_[count_], buffer);
total_buffer_size_ += boost::asio::buffer_size(buffer);
}
}
native_buffer_type* buffers()
{
return buffers_;
}
std::size_t count() const
{
return count_;
}
bool all_empty() const
{
return total_buffer_size_ == 0;
}
static bool all_empty(const Buffers& buffer_sequence)
{
typename Buffers::const_iterator iter = buffer_sequence.begin();
typename Buffers::const_iterator end = buffer_sequence.end();
std::size_t i = 0;
for (; iter != end && i < max_buffers; ++iter, ++i)
if (boost::asio::buffer_size(Buffer(*iter)) > 0)
return false;
return true;
}
static void validate(const Buffers& buffer_sequence)
{
typename Buffers::const_iterator iter = buffer_sequence.begin();
typename Buffers::const_iterator end = buffer_sequence.end();
for (; iter != end; ++iter)
{
Buffer buffer(*iter);
boost::asio::buffer_cast<const void*>(buffer);
}
}
static Buffer first(const Buffers& buffer_sequence)
{
typename Buffers::const_iterator iter = buffer_sequence.begin();
typename Buffers::const_iterator end = buffer_sequence.end();
for (; iter != end; ++iter)
{
Buffer buffer(*iter);
if (boost::asio::buffer_size(buffer) != 0)
return buffer;
}
return Buffer();
}
private:
// The maximum number of buffers to support in a single operation.
enum { max_buffers = 64 < max_iov_len ? 64 : max_iov_len };
native_buffer_type buffers_[max_buffers];
std::size_t count_;
std::size_t total_buffer_size_;
};
template <typename Buffer>
class buffer_sequence_adapter<Buffer, boost::asio::mutable_buffers_1>
: buffer_sequence_adapter_base
{
public:
explicit buffer_sequence_adapter(
const boost::asio::mutable_buffers_1& buffer_sequence)
{
init_native_buffer(buffer_, Buffer(buffer_sequence));
total_buffer_size_ = boost::asio::buffer_size(buffer_sequence);
}
native_buffer_type* buffers()
{
return &buffer_;
}
std::size_t count() const
{
return 1;
}
bool all_empty() const
{
return total_buffer_size_ == 0;
}
static bool all_empty(const boost::asio::mutable_buffers_1& buffer_sequence)
{
return boost::asio::buffer_size(buffer_sequence) == 0;
}
static void validate(const boost::asio::mutable_buffers_1& buffer_sequence)
{
boost::asio::buffer_cast<const void*>(buffer_sequence);
}
static Buffer first(const boost::asio::mutable_buffers_1& buffer_sequence)
{
return Buffer(buffer_sequence);
}
private:
native_buffer_type buffer_;
std::size_t total_buffer_size_;
};
template <typename Buffer>
class buffer_sequence_adapter<Buffer, boost::asio::const_buffers_1>
: buffer_sequence_adapter_base
{
public:
explicit buffer_sequence_adapter(
const boost::asio::const_buffers_1& buffer_sequence)
{
init_native_buffer(buffer_, Buffer(buffer_sequence));
total_buffer_size_ = boost::asio::buffer_size(buffer_sequence);
}
native_buffer_type* buffers()
{
return &buffer_;
}
std::size_t count() const
{
return 1;
}
bool all_empty() const
{
return total_buffer_size_ == 0;
}
static bool all_empty(const boost::asio::const_buffers_1& buffer_sequence)
{
return boost::asio::buffer_size(buffer_sequence) == 0;
}
static void validate(const boost::asio::const_buffers_1& buffer_sequence)
{
boost::asio::buffer_cast<const void*>(buffer_sequence);
}
static Buffer first(const boost::asio::const_buffers_1& buffer_sequence)
{
return Buffer(buffer_sequence);
}
private:
native_buffer_type buffer_;
std::size_t total_buffer_size_;
};
template <typename Buffer, typename Elem>
class buffer_sequence_adapter<Buffer, boost::array<Elem, 2> >
: buffer_sequence_adapter_base
{
public:
explicit buffer_sequence_adapter(
const boost::array<Elem, 2>& buffer_sequence)
{
init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
total_buffer_size_ = boost::asio::buffer_size(buffer_sequence[0])
+ boost::asio::buffer_size(buffer_sequence[1]);
}
native_buffer_type* buffers()
{
return buffers_;
}
std::size_t count() const
{
return 2;
}
bool all_empty() const
{
return total_buffer_size_ == 0;
}
static bool all_empty(const boost::array<Elem, 2>& buffer_sequence)
{
return boost::asio::buffer_size(buffer_sequence[0]) == 0
&& boost::asio::buffer_size(buffer_sequence[1]) == 0;
}
static void validate(const boost::array<Elem, 2>& buffer_sequence)
{
boost::asio::buffer_cast<const void*>(buffer_sequence[0]);
boost::asio::buffer_cast<const void*>(buffer_sequence[1]);
}
static Buffer first(const boost::array<Elem, 2>& buffer_sequence)
{
return Buffer(buffer_sequence[0]);
}
private:
native_buffer_type buffers_[2];
std::size_t total_buffer_size_;
};
#if defined(BOOST_ASIO_HAS_STD_ARRAY)
template <typename Buffer, typename Elem>
class buffer_sequence_adapter<Buffer, std::array<Elem, 2> >
: buffer_sequence_adapter_base
{
public:
explicit buffer_sequence_adapter(
const std::array<Elem, 2>& buffer_sequence)
{
init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
total_buffer_size_ = boost::asio::buffer_size(buffer_sequence[0])
+ boost::asio::buffer_size(buffer_sequence[1]);
}
native_buffer_type* buffers()
{
return buffers_;
}
std::size_t count() const
{
return 2;
}
bool all_empty() const
{
return total_buffer_size_ == 0;
}
static bool all_empty(const std::array<Elem, 2>& buffer_sequence)
{
return boost::asio::buffer_size(buffer_sequence[0]) == 0
&& boost::asio::buffer_size(buffer_sequence[1]) == 0;
}
static void validate(const std::array<Elem, 2>& buffer_sequence)
{
boost::asio::buffer_cast<const void*>(buffer_sequence[0]);
boost::asio::buffer_cast<const void*>(buffer_sequence[1]);
}
static Buffer first(const std::array<Elem, 2>& buffer_sequence)
{
return Buffer(buffer_sequence[0]);
}
private:
native_buffer_type buffers_[2];
std::size_t total_buffer_size_;
};
#endif // defined(BOOST_ASIO_HAS_STD_ARRAY)
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP

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//
// detail/buffered_stream_storage.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_BUFFERED_STREAM_STORAGE_HPP
#define BOOST_ASIO_DETAIL_BUFFERED_STREAM_STORAGE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/buffer.hpp>
#include <boost/assert.hpp>
#include <cstddef>
#include <cstring>
#include <vector>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class buffered_stream_storage
{
public:
// The type of the bytes stored in the buffer.
typedef unsigned char byte_type;
// The type used for offsets into the buffer.
typedef std::size_t size_type;
// Constructor.
explicit buffered_stream_storage(std::size_t buffer_capacity)
: begin_offset_(0),
end_offset_(0),
buffer_(buffer_capacity)
{
}
/// Clear the buffer.
void clear()
{
begin_offset_ = 0;
end_offset_ = 0;
}
// Return a pointer to the beginning of the unread data.
mutable_buffer data()
{
return boost::asio::buffer(buffer_) + begin_offset_;
}
// Return a pointer to the beginning of the unread data.
const_buffer data() const
{
return boost::asio::buffer(buffer_) + begin_offset_;
}
// Is there no unread data in the buffer.
bool empty() const
{
return begin_offset_ == end_offset_;
}
// Return the amount of unread data the is in the buffer.
size_type size() const
{
return end_offset_ - begin_offset_;
}
// Resize the buffer to the specified length.
void resize(size_type length)
{
BOOST_ASSERT(length <= capacity());
if (begin_offset_ + length <= capacity())
{
end_offset_ = begin_offset_ + length;
}
else
{
using namespace std; // For memmove.
memmove(&buffer_[0], &buffer_[0] + begin_offset_, size());
end_offset_ = length;
begin_offset_ = 0;
}
}
// Return the maximum size for data in the buffer.
size_type capacity() const
{
return buffer_.size();
}
// Consume multiple bytes from the beginning of the buffer.
void consume(size_type count)
{
BOOST_ASSERT(begin_offset_ + count <= end_offset_);
begin_offset_ += count;
if (empty())
clear();
}
private:
// The offset to the beginning of the unread data.
size_type begin_offset_;
// The offset to the end of the unread data.
size_type end_offset_;
// The data in the buffer.
std::vector<byte_type> buffer_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_BUFFERED_STREAM_STORAGE_HPP

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//
// detail/call_stack.hpp
// ~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_CALL_STACK_HPP
#define BOOST_ASIO_DETAIL_CALL_STACK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/tss_ptr.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
// Helper class to determine whether or not the current thread is inside an
// invocation of io_service::run() for a specified io_service object.
template <typename Key, typename Value = unsigned char>
class call_stack
{
public:
// Context class automatically pushes the key/value pair on to the stack.
class context
: private noncopyable
{
public:
// Push the key on to the stack.
explicit context(Key* k)
: key_(k),
next_(call_stack<Key, Value>::top_)
{
value_ = reinterpret_cast<unsigned char*>(this);
call_stack<Key, Value>::top_ = this;
}
// Push the key/value pair on to the stack.
context(Key* k, Value& v)
: key_(k),
value_(&v),
next_(call_stack<Key, Value>::top_)
{
call_stack<Key, Value>::top_ = this;
}
// Pop the key/value pair from the stack.
~context()
{
call_stack<Key, Value>::top_ = next_;
}
// Find the next context with the same key.
Value* next_by_key() const
{
context* elem = next_;
while (elem)
{
if (elem->key_ == key_)
return elem->value_;
elem = elem->next_;
}
return 0;
}
private:
friend class call_stack<Key, Value>;
// The key associated with the context.
Key* key_;
// The value associated with the context.
Value* value_;
// The next element in the stack.
context* next_;
};
friend class context;
// Determine whether the specified owner is on the stack. Returns address of
// key if present, 0 otherwise.
static Value* contains(Key* k)
{
context* elem = top_;
while (elem)
{
if (elem->key_ == k)
return elem->value_;
elem = elem->next_;
}
return 0;
}
private:
// The top of the stack of calls for the current thread.
static tss_ptr<context> top_;
};
template <typename Key, typename Value>
tss_ptr<typename call_stack<Key, Value>::context>
call_stack<Key, Value>::top_;
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_CALL_STACK_HPP

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//
// detail/completion_handler.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_COMPLETION_HANDLER_HPP
#define BOOST_ASIO_DETAIL_COMPLETION_HANDLER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/operation.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Handler>
class completion_handler : public operation
{
public:
BOOST_ASIO_DEFINE_HANDLER_PTR(completion_handler);
completion_handler(Handler& h)
: operation(&completion_handler::do_complete),
handler_(BOOST_ASIO_MOVE_CAST(Handler)(h))
{
}
static void do_complete(io_service_impl* owner, operation* base,
const boost::system::error_code& /*ec*/,
std::size_t /*bytes_transferred*/)
{
// Take ownership of the handler object.
completion_handler* h(static_cast<completion_handler*>(base));
ptr p = { boost::addressof(h->handler_), h, h };
BOOST_ASIO_HANDLER_COMPLETION((h));
// Make a copy of the handler so that the memory can be deallocated before
// the upcall is made. Even if we're not about to make an upcall, a
// sub-object of the handler may be the true owner of the memory associated
// with the handler. Consequently, a local copy of the handler is required
// to ensure that any owning sub-object remains valid until after we have
// deallocated the memory here.
Handler handler(BOOST_ASIO_MOVE_CAST(Handler)(h->handler_));
p.h = boost::addressof(handler);
p.reset();
// Make the upcall if required.
if (owner)
{
fenced_block b(fenced_block::half);
BOOST_ASIO_HANDLER_INVOCATION_BEGIN(());
boost_asio_handler_invoke_helpers::invoke(handler, handler);
BOOST_ASIO_HANDLER_INVOCATION_END;
}
}
private:
Handler handler_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_COMPLETION_HANDLER_HPP

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//
// detail/config.hpp
// ~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_CONFIG_HPP
#define BOOST_ASIO_DETAIL_CONFIG_HPP
#include <boost/config.hpp>
// Default to a header-only implementation. The user must specifically request
// separate compilation by defining either BOOST_ASIO_SEPARATE_COMPILATION or
// BOOST_ASIO_DYN_LINK (as a DLL/shared library implies separate compilation).
#if !defined(BOOST_ASIO_HEADER_ONLY)
# if !defined(BOOST_ASIO_SEPARATE_COMPILATION)
# if !defined(BOOST_ASIO_DYN_LINK)
# define BOOST_ASIO_HEADER_ONLY
# endif // !defined(BOOST_ASIO_DYN_LINK)
# endif // !defined(BOOST_ASIO_SEPARATE_COMPILATION)
#endif // !defined(BOOST_ASIO_HEADER_ONLY)
#if defined(BOOST_ASIO_HEADER_ONLY)
# define BOOST_ASIO_DECL inline
#else // defined(BOOST_ASIO_HEADER_ONLY)
# if defined(BOOST_HAS_DECLSPEC)
// We need to import/export our code only if the user has specifically asked
// for it by defining BOOST_ASIO_DYN_LINK.
# if defined(BOOST_ASIO_DYN_LINK)
// Export if this is our own source, otherwise import.
# if defined(BOOST_ASIO_SOURCE)
# define BOOST_ASIO_DECL __declspec(dllexport)
# else // defined(BOOST_ASIO_SOURCE)
# define BOOST_ASIO_DECL __declspec(dllimport)
# endif // defined(BOOST_ASIO_SOURCE)
# endif // defined(BOOST_ASIO_DYN_LINK)
# endif // defined(BOOST_HAS_DECLSPEC)
#endif // defined(BOOST_ASIO_HEADER_ONLY)
// If BOOST_ASIO_DECL isn't defined yet define it now.
#if !defined(BOOST_ASIO_DECL)
# define BOOST_ASIO_DECL
#endif // !defined(BOOST_ASIO_DECL)
// Support move construction and assignment on compilers known to allow it.
#if !defined(BOOST_ASIO_DISABLE_MOVE)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_MOVE
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_MOVE)
// If BOOST_ASIO_MOVE_CAST isn't defined, and move support is available, define
// BOOST_ASIO_MOVE_ARG and BOOST_ASIO_MOVE_CAST to take advantage of rvalue
// references and perfect forwarding.
#if defined(BOOST_ASIO_HAS_MOVE) && !defined(BOOST_ASIO_MOVE_CAST)
# define BOOST_ASIO_MOVE_ARG(type) type&&
# define BOOST_ASIO_MOVE_CAST(type) static_cast<type&&>
#endif // defined(BOOST_ASIO_HAS_MOVE) && !defined(BOOST_ASIO_MOVE_CAST)
// If BOOST_ASIO_MOVE_CAST still isn't defined, default to a C++03-compatible
// implementation. Note that older g++ and MSVC versions don't like it when you
// pass a non-member function through a const reference, so for most compilers
// we'll play it safe and stick with the old approach of passing the handler by
// value.
#if !defined(BOOST_ASIO_MOVE_CAST)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
# define BOOST_ASIO_MOVE_ARG(type) const type&
# else // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
# define BOOST_ASIO_MOVE_ARG(type) type
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
# elif defined(BOOST_MSVC)
# if (_MSC_VER >= 1400)
# define BOOST_ASIO_MOVE_ARG(type) const type&
# else // (_MSC_VER >= 1400)
# define BOOST_ASIO_MOVE_ARG(type) type
# endif // (_MSC_VER >= 1400)
# else
# define BOOST_ASIO_MOVE_ARG(type) type
# endif
# define BOOST_ASIO_MOVE_CAST(type) static_cast<const type&>
#endif // !defined_BOOST_ASIO_MOVE_CAST
// Support variadic templates on compilers known to allow it.
#if !defined(BOOST_ASIO_DISABLE_VARIADIC_TEMPLATES)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_VARIADIC_TEMPLATES
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_VARIADIC_TEMPLATES)
// Standard library support for system errors.
#if !defined(BOOST_ASIO_DISABLE_STD_SYSTEM_ERROR)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_SYSTEM_ERROR
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_STD_SYSTEM_ERROR)
// Standard library support for arrays.
#if !defined(BOOST_ASIO_DISABLE_STD_ARRAY)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_ARRAY
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_MSVC)
# if (_MSC_VER >= 1600)
# define BOOST_ASIO_HAS_STD_ARRAY
# endif // (_MSC_VER >= 1600)
# endif // defined(BOOST_MSVC)
#endif // !defined(BOOST_ASIO_DISABLE_STD_ARRAY)
// Standard library support for shared_ptr and weak_ptr.
#if !defined(BOOST_ASIO_DISABLE_STD_SHARED_PTR)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_SHARED_PTR
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_MSVC)
# if (_MSC_VER >= 1600)
# define BOOST_ASIO_HAS_STD_SHARED_PTR
# endif // (_MSC_VER >= 1600)
# endif // defined(BOOST_MSVC)
#endif // !defined(BOOST_ASIO_DISABLE_STD_SHARED_PTR)
// Standard library support for atomic operations.
#if !defined(BOOST_ASIO_DISABLE_STD_ATOMIC)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_ATOMIC
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_STD_ATOMIC)
// Windows: target OS version.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
# if defined(_MSC_VER) || defined(__BORLANDC__)
# pragma message( \
"Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately. For example:\n"\
"- add -D_WIN32_WINNT=0x0501 to the compiler command line; or\n"\
"- add _WIN32_WINNT=0x0501 to your project's Preprocessor Definitions.\n"\
"Assuming _WIN32_WINNT=0x0501 (i.e. Windows XP target).")
# else // defined(_MSC_VER) || defined(__BORLANDC__)
# warning Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately.
# warning For example, add -D_WIN32_WINNT=0x0501 to the compiler command line.
# warning Assuming _WIN32_WINNT=0x0501 (i.e. Windows XP target).
# endif // defined(_MSC_VER) || defined(__BORLANDC__)
# define _WIN32_WINNT 0x0501
# endif // !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
# if defined(_MSC_VER)
# if defined(_WIN32) && !defined(WIN32)
# if !defined(_WINSOCK2API_)
# define WIN32 // Needed for correct types in winsock2.h
# else // !defined(_WINSOCK2API_)
# error Please define the macro WIN32 in your compiler options
# endif // !defined(_WINSOCK2API_)
# endif // defined(_WIN32) && !defined(WIN32)
# endif // defined(_MSC_VER)
# if defined(__BORLANDC__)
# if defined(__WIN32__) && !defined(WIN32)
# if !defined(_WINSOCK2API_)
# define WIN32 // Needed for correct types in winsock2.h
# else // !defined(_WINSOCK2API_)
# error Please define the macro WIN32 in your compiler options
# endif // !defined(_WINSOCK2API_)
# endif // defined(__WIN32__) && !defined(WIN32)
# endif // defined(__BORLANDC__)
# if defined(__CYGWIN__)
# if !defined(__USE_W32_SOCKETS)
# error You must add -D__USE_W32_SOCKETS to your compiler options.
# endif // !defined(__USE_W32_SOCKETS)
# endif // defined(__CYGWIN__)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Windows: minimise header inclusion.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if !defined(BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN)
# if !defined(WIN32_LEAN_AND_MEAN)
# define WIN32_LEAN_AND_MEAN
# endif // !defined(WIN32_LEAN_AND_MEAN)
# endif // !defined(BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Windows: suppress definition of "min" and "max" macros.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if !defined(BOOST_ASIO_NO_NOMINMAX)
# if !defined(NOMINMAX)
# define NOMINMAX 1
# endif // !defined(NOMINMAX)
# endif // !defined(BOOST_ASIO_NO_NOMINMAX)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Windows: IO Completion Ports.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0400)
# if !defined(UNDER_CE)
# if !defined(BOOST_ASIO_DISABLE_IOCP)
# define BOOST_ASIO_HAS_IOCP 1
# endif // !defined(BOOST_ASIO_DISABLE_IOCP)
# endif // !defined(UNDER_CE)
# endif // defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0400)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Linux: epoll, eventfd and timerfd.
#if defined(__linux__)
# include <linux/version.h>
# if !defined(BOOST_ASIO_DISABLE_EPOLL)
# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,45)
# define BOOST_ASIO_HAS_EPOLL 1
# endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,45)
# endif // !defined(BOOST_ASIO_DISABLE_EVENTFD)
# if !defined(BOOST_ASIO_DISABLE_EVENTFD)
# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
# define BOOST_ASIO_HAS_EVENTFD 1
# endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
# endif // !defined(BOOST_ASIO_DISABLE_EVENTFD)
# if defined(BOOST_ASIO_HAS_EPOLL)
# if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
# define BOOST_ASIO_HAS_TIMERFD 1
# endif // (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
# endif // defined(BOOST_ASIO_HAS_EPOLL)
#endif // defined(__linux__)
// Mac OS X, FreeBSD, NetBSD, OpenBSD: kqueue.
#if (defined(__MACH__) && defined(__APPLE__)) \
|| defined(__FreeBSD__) \
|| defined(__NetBSD__) \
|| defined(__OpenBSD__)
# if !defined(BOOST_ASIO_DISABLE_KQUEUE)
# define BOOST_ASIO_HAS_KQUEUE 1
# endif // !defined(BOOST_ASIO_DISABLE_KQUEUE)
#endif // (defined(__MACH__) && defined(__APPLE__))
// || defined(__FreeBSD__)
// || defined(__NetBSD__)
// || defined(__OpenBSD__)
// Solaris: /dev/poll.
#if defined(__sun)
# if !defined(BOOST_ASIO_DISABLE_DEV_POLL)
# define BOOST_ASIO_HAS_DEV_POLL 1
# endif // !defined(BOOST_ASIO_DISABLE_DEV_POLL)
#endif // defined(__sun)
// Serial ports.
#if defined(BOOST_ASIO_HAS_IOCP) \
|| !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# if !defined(__SYMBIAN32__)
# if !defined(BOOST_ASIO_DISABLE_SERIAL_PORT)
# define BOOST_ASIO_HAS_SERIAL_PORT 1
# endif // !defined(BOOST_ASIO_DISABLE_SERIAL_PORT)
# endif // !defined(__SYMBIAN32__)
#endif // defined(BOOST_ASIO_HAS_IOCP)
// || !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// Windows: stream handles.
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
# if defined(BOOST_ASIO_HAS_IOCP)
# define BOOST_ASIO_HAS_WINDOWS_STREAM_HANDLE 1
# endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
// Windows: random access handles.
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
# if defined(BOOST_ASIO_HAS_IOCP)
# define BOOST_ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE 1
# endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
// Windows: OVERLAPPED wrapper.
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
# if defined(BOOST_ASIO_HAS_IOCP)
# define BOOST_ASIO_HAS_WINDOWS_OVERLAPPED_PTR 1
# endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
// POSIX: stream-oriented file descriptors.
#if !defined(BOOST_ASIO_DISABLE_POSIX_STREAM_DESCRIPTOR)
# if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# define BOOST_ASIO_HAS_POSIX_STREAM_DESCRIPTOR 1
# endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // !defined(BOOST_ASIO_DISABLE_POSIX_STREAM_DESCRIPTOR)
// UNIX domain sockets.
#if !defined(BOOST_ASIO_DISABLE_LOCAL_SOCKETS)
# if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# define BOOST_ASIO_HAS_LOCAL_SOCKETS 1
# endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // !defined(BOOST_ASIO_DISABLE_LOCAL_SOCKETS)
// Can use sigaction() instead of signal().
#if !defined(BOOST_ASIO_DISABLE_SIGACTION)
# if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# define BOOST_ASIO_HAS_SIGACTION 1
# endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // !defined(BOOST_ASIO_DISABLE_SIGACTION)
// Can use signal().
#if !defined(BOOST_ASIO_DISABLE_SIGNAL)
# if !defined(UNDER_CE)
# define BOOST_ASIO_HAS_SIGNAL 1
# endif // !defined(UNDER_CE)
#endif // !defined(BOOST_ASIO_DISABLE_SIGNAL)
#endif // BOOST_ASIO_DETAIL_CONFIG_HPP

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//
// detail/consuming_buffers.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_CONSUMING_BUFFERS_HPP
#define BOOST_ASIO_DETAIL_CONSUMING_BUFFERS_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <cstddef>
#include <boost/iterator.hpp>
#include <boost/limits.hpp>
#include <boost/asio/buffer.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
// A proxy iterator for a sub-range in a list of buffers.
template <typename Buffer, typename Buffer_Iterator>
class consuming_buffers_iterator
: public boost::iterator<std::forward_iterator_tag, const Buffer>
{
public:
// Default constructor creates an end iterator.
consuming_buffers_iterator()
: at_end_(true)
{
}
// Construct with a buffer for the first entry and an iterator
// range for the remaining entries.
consuming_buffers_iterator(bool at_end, const Buffer& first,
Buffer_Iterator begin_remainder, Buffer_Iterator end_remainder,
std::size_t max_size)
: at_end_(max_size > 0 ? at_end : true),
first_(buffer(first, max_size)),
begin_remainder_(begin_remainder),
end_remainder_(end_remainder),
offset_(0),
max_size_(max_size)
{
}
// Dereference an iterator.
const Buffer& operator*() const
{
return dereference();
}
// Dereference an iterator.
const Buffer* operator->() const
{
return &dereference();
}
// Increment operator (prefix).
consuming_buffers_iterator& operator++()
{
increment();
return *this;
}
// Increment operator (postfix).
consuming_buffers_iterator operator++(int)
{
consuming_buffers_iterator tmp(*this);
++*this;
return tmp;
}
// Test two iterators for equality.
friend bool operator==(const consuming_buffers_iterator& a,
const consuming_buffers_iterator& b)
{
return a.equal(b);
}
// Test two iterators for inequality.
friend bool operator!=(const consuming_buffers_iterator& a,
const consuming_buffers_iterator& b)
{
return !a.equal(b);
}
private:
void increment()
{
if (!at_end_)
{
if (begin_remainder_ == end_remainder_
|| offset_ + buffer_size(first_) >= max_size_)
{
at_end_ = true;
}
else
{
offset_ += buffer_size(first_);
first_ = buffer(*begin_remainder_++, max_size_ - offset_);
}
}
}
bool equal(const consuming_buffers_iterator& other) const
{
if (at_end_ && other.at_end_)
return true;
return !at_end_ && !other.at_end_
&& buffer_cast<const void*>(first_)
== buffer_cast<const void*>(other.first_)
&& buffer_size(first_) == buffer_size(other.first_)
&& begin_remainder_ == other.begin_remainder_
&& end_remainder_ == other.end_remainder_;
}
const Buffer& dereference() const
{
return first_;
}
bool at_end_;
Buffer first_;
Buffer_Iterator begin_remainder_;
Buffer_Iterator end_remainder_;
std::size_t offset_;
std::size_t max_size_;
};
// A proxy for a sub-range in a list of buffers.
template <typename Buffer, typename Buffers>
class consuming_buffers
{
public:
// The type for each element in the list of buffers.
typedef Buffer value_type;
// A forward-only iterator type that may be used to read elements.
typedef consuming_buffers_iterator<Buffer, typename Buffers::const_iterator>
const_iterator;
// Construct to represent the entire list of buffers.
consuming_buffers(const Buffers& buffers)
: buffers_(buffers),
at_end_(buffers_.begin() == buffers_.end()),
begin_remainder_(buffers_.begin()),
max_size_((std::numeric_limits<std::size_t>::max)())
{
if (!at_end_)
{
first_ = *buffers_.begin();
++begin_remainder_;
}
}
// Copy constructor.
consuming_buffers(const consuming_buffers& other)
: buffers_(other.buffers_),
at_end_(other.at_end_),
first_(other.first_),
begin_remainder_(buffers_.begin()),
max_size_(other.max_size_)
{
typename Buffers::const_iterator first = other.buffers_.begin();
typename Buffers::const_iterator second = other.begin_remainder_;
std::advance(begin_remainder_, std::distance(first, second));
}
// Assignment operator.
consuming_buffers& operator=(const consuming_buffers& other)
{
buffers_ = other.buffers_;
at_end_ = other.at_end_;
first_ = other.first_;
begin_remainder_ = buffers_.begin();
typename Buffers::const_iterator first = other.buffers_.begin();
typename Buffers::const_iterator second = other.begin_remainder_;
std::advance(begin_remainder_, std::distance(first, second));
max_size_ = other.max_size_;
return *this;
}
// Get a forward-only iterator to the first element.
const_iterator begin() const
{
return const_iterator(at_end_, first_,
begin_remainder_, buffers_.end(), max_size_);
}
// Get a forward-only iterator for one past the last element.
const_iterator end() const
{
return const_iterator();
}
// Set the maximum size for a single transfer.
void prepare(std::size_t max_size)
{
max_size_ = max_size;
}
// Consume the specified number of bytes from the buffers.
void consume(std::size_t size)
{
// Remove buffers from the start until the specified size is reached.
while (size > 0 && !at_end_)
{
if (buffer_size(first_) <= size)
{
size -= buffer_size(first_);
if (begin_remainder_ == buffers_.end())
at_end_ = true;
else
first_ = *begin_remainder_++;
}
else
{
first_ = first_ + size;
size = 0;
}
}
// Remove any more empty buffers at the start.
while (!at_end_ && buffer_size(first_) == 0)
{
if (begin_remainder_ == buffers_.end())
at_end_ = true;
else
first_ = *begin_remainder_++;
}
}
private:
Buffers buffers_;
bool at_end_;
Buffer first_;
typename Buffers::const_iterator begin_remainder_;
std::size_t max_size_;
};
// Specialisation for null_buffers to ensure that the null_buffers type is
// always passed through to the underlying read or write operation.
template <typename Buffer>
class consuming_buffers<Buffer, boost::asio::null_buffers>
: public boost::asio::null_buffers
{
public:
consuming_buffers(const boost::asio::null_buffers&)
{
// No-op.
}
void prepare(std::size_t)
{
// No-op.
}
void consume(std::size_t)
{
// No-op.
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_CONSUMING_BUFFERS_HPP

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//
// detail/deadline_timer_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_DEADLINE_TIMER_SERVICE_HPP
#define BOOST_ASIO_DETAIL_DEADLINE_TIMER_SERVICE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <cstddef>
#include <boost/asio/error.hpp>
#include <boost/asio/io_service.hpp>
#include <boost/asio/detail/bind_handler.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/socket_ops.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/timer_op.hpp>
#include <boost/asio/detail/timer_queue.hpp>
#include <boost/asio/detail/timer_scheduler.hpp>
#include <boost/asio/detail/wait_handler.hpp>
#include <boost/asio/detail/push_options.hpp>
#include <boost/date_time/posix_time/posix_time_types.hpp>
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Time_Traits>
class deadline_timer_service
{
public:
// The time type.
typedef typename Time_Traits::time_type time_type;
// The duration type.
typedef typename Time_Traits::duration_type duration_type;
// The implementation type of the timer. This type is dependent on the
// underlying implementation of the timer service.
struct implementation_type
: private boost::asio::detail::noncopyable
{
time_type expiry;
bool might_have_pending_waits;
typename timer_queue<Time_Traits>::per_timer_data timer_data;
};
// Constructor.
deadline_timer_service(boost::asio::io_service& io_service)
: scheduler_(boost::asio::use_service<timer_scheduler>(io_service))
{
scheduler_.init_task();
scheduler_.add_timer_queue(timer_queue_);
}
// Destructor.
~deadline_timer_service()
{
scheduler_.remove_timer_queue(timer_queue_);
}
// Destroy all user-defined handler objects owned by the service.
void shutdown_service()
{
}
// Construct a new timer implementation.
void construct(implementation_type& impl)
{
impl.expiry = time_type();
impl.might_have_pending_waits = false;
}
// Destroy a timer implementation.
void destroy(implementation_type& impl)
{
boost::system::error_code ec;
cancel(impl, ec);
}
// Cancel any asynchronous wait operations associated with the timer.
std::size_t cancel(implementation_type& impl, boost::system::error_code& ec)
{
if (!impl.might_have_pending_waits)
{
ec = boost::system::error_code();
return 0;
}
BOOST_ASIO_HANDLER_OPERATION(("deadline_timer", &impl, "cancel"));
std::size_t count = scheduler_.cancel_timer(timer_queue_, impl.timer_data);
impl.might_have_pending_waits = false;
ec = boost::system::error_code();
return count;
}
// Cancels one asynchronous wait operation associated with the timer.
std::size_t cancel_one(implementation_type& impl,
boost::system::error_code& ec)
{
if (!impl.might_have_pending_waits)
{
ec = boost::system::error_code();
return 0;
}
BOOST_ASIO_HANDLER_OPERATION(("deadline_timer", &impl, "cancel_one"));
std::size_t count = scheduler_.cancel_timer(
timer_queue_, impl.timer_data, 1);
if (count == 0)
impl.might_have_pending_waits = false;
ec = boost::system::error_code();
return count;
}
// Get the expiry time for the timer as an absolute time.
time_type expires_at(const implementation_type& impl) const
{
return impl.expiry;
}
// Set the expiry time for the timer as an absolute time.
std::size_t expires_at(implementation_type& impl,
const time_type& expiry_time, boost::system::error_code& ec)
{
std::size_t count = cancel(impl, ec);
impl.expiry = expiry_time;
ec = boost::system::error_code();
return count;
}
// Get the expiry time for the timer relative to now.
duration_type expires_from_now(const implementation_type& impl) const
{
return Time_Traits::subtract(expires_at(impl), Time_Traits::now());
}
// Set the expiry time for the timer relative to now.
std::size_t expires_from_now(implementation_type& impl,
const duration_type& expiry_time, boost::system::error_code& ec)
{
return expires_at(impl,
Time_Traits::add(Time_Traits::now(), expiry_time), ec);
}
// Perform a blocking wait on the timer.
void wait(implementation_type& impl, boost::system::error_code& ec)
{
time_type now = Time_Traits::now();
ec = boost::system::error_code();
while (Time_Traits::less_than(now, impl.expiry) && !ec)
{
boost::posix_time::time_duration timeout =
Time_Traits::to_posix_duration(Time_Traits::subtract(impl.expiry, now));
::timeval tv;
tv.tv_sec = timeout.total_seconds();
tv.tv_usec = timeout.total_microseconds() % 1000000;
socket_ops::select(0, 0, 0, 0, &tv, ec);
now = Time_Traits::now();
}
}
// Start an asynchronous wait on the timer.
template <typename Handler>
void async_wait(implementation_type& impl, Handler handler)
{
// Allocate and construct an operation to wrap the handler.
typedef wait_handler<Handler> op;
typename op::ptr p = { boost::addressof(handler),
boost_asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(handler);
impl.might_have_pending_waits = true;
BOOST_ASIO_HANDLER_CREATION((p.p, "deadline_timer", &impl, "async_wait"));
scheduler_.schedule_timer(timer_queue_, impl.expiry, impl.timer_data, p.p);
p.v = p.p = 0;
}
private:
// The queue of timers.
timer_queue<Time_Traits> timer_queue_;
// The object that schedules and executes timers. Usually a reactor.
timer_scheduler& scheduler_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_DEADLINE_TIMER_SERVICE_HPP

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//
// detail/dependent_type.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_DEPENDENT_TYPE_HPP
#define BOOST_ASIO_DETAIL_DEPENDENT_TYPE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename DependsOn, typename T>
struct dependent_type
{
typedef T type;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_DEPENDENT_TYPE_HPP

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//
// detail/descriptor_ops.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_DESCRIPTOR_OPS_HPP
#define BOOST_ASIO_DETAIL_DESCRIPTOR_OPS_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#include <cstddef>
#include <boost/system/error_code.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
namespace descriptor_ops {
// Descriptor state bits.
enum
{
// The user wants a non-blocking descriptor.
user_set_non_blocking = 1,
// The descriptor has been set non-blocking.
internal_non_blocking = 2,
// Helper "state" used to determine whether the descriptor is non-blocking.
non_blocking = user_set_non_blocking | internal_non_blocking,
// The descriptor may have been dup()-ed.
possible_dup = 4
};
typedef unsigned char state_type;
template <typename ReturnType>
inline ReturnType error_wrapper(ReturnType return_value,
boost::system::error_code& ec)
{
ec = boost::system::error_code(errno,
boost::asio::error::get_system_category());
return return_value;
}
BOOST_ASIO_DECL int open(const char* path, int flags,
boost::system::error_code& ec);
BOOST_ASIO_DECL int close(int d, state_type& state,
boost::system::error_code& ec);
BOOST_ASIO_DECL bool set_user_non_blocking(int d,
state_type& state, bool value, boost::system::error_code& ec);
BOOST_ASIO_DECL bool set_internal_non_blocking(int d,
state_type& state, bool value, boost::system::error_code& ec);
typedef iovec buf;
BOOST_ASIO_DECL std::size_t sync_read(int d, state_type state, buf* bufs,
std::size_t count, bool all_empty, boost::system::error_code& ec);
BOOST_ASIO_DECL bool non_blocking_read(int d, buf* bufs, std::size_t count,
boost::system::error_code& ec, std::size_t& bytes_transferred);
BOOST_ASIO_DECL std::size_t sync_write(int d, state_type state,
const buf* bufs, std::size_t count, bool all_empty,
boost::system::error_code& ec);
BOOST_ASIO_DECL bool non_blocking_write(int d,
const buf* bufs, std::size_t count,
boost::system::error_code& ec, std::size_t& bytes_transferred);
BOOST_ASIO_DECL int ioctl(int d, state_type& state, long cmd,
ioctl_arg_type* arg, boost::system::error_code& ec);
BOOST_ASIO_DECL int fcntl(int d, long cmd, boost::system::error_code& ec);
BOOST_ASIO_DECL int fcntl(int d, long cmd,
long arg, boost::system::error_code& ec);
BOOST_ASIO_DECL int poll_read(int d,
state_type state, boost::system::error_code& ec);
BOOST_ASIO_DECL int poll_write(int d,
state_type state, boost::system::error_code& ec);
} // namespace descriptor_ops
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/descriptor_ops.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_DESCRIPTOR_OPS_HPP

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//
// detail/descriptor_read_op.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_DESCRIPTOR_READ_OP_HPP
#define BOOST_ASIO_DETAIL_DESCRIPTOR_READ_OP_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#include <boost/utility/addressof.hpp>
#include <boost/asio/detail/bind_handler.hpp>
#include <boost/asio/detail/buffer_sequence_adapter.hpp>
#include <boost/asio/detail/descriptor_ops.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/reactor_op.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename MutableBufferSequence>
class descriptor_read_op_base : public reactor_op
{
public:
descriptor_read_op_base(int descriptor,
const MutableBufferSequence& buffers, func_type complete_func)
: reactor_op(&descriptor_read_op_base::do_perform, complete_func),
descriptor_(descriptor),
buffers_(buffers)
{
}
static bool do_perform(reactor_op* base)
{
descriptor_read_op_base* o(static_cast<descriptor_read_op_base*>(base));
buffer_sequence_adapter<boost::asio::mutable_buffer,
MutableBufferSequence> bufs(o->buffers_);
return descriptor_ops::non_blocking_read(o->descriptor_,
bufs.buffers(), bufs.count(), o->ec_, o->bytes_transferred_);
}
private:
int descriptor_;
MutableBufferSequence buffers_;
};
template <typename MutableBufferSequence, typename Handler>
class descriptor_read_op
: public descriptor_read_op_base<MutableBufferSequence>
{
public:
BOOST_ASIO_DEFINE_HANDLER_PTR(descriptor_read_op);
descriptor_read_op(int descriptor,
const MutableBufferSequence& buffers, Handler& handler)
: descriptor_read_op_base<MutableBufferSequence>(
descriptor, buffers, &descriptor_read_op::do_complete),
handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler))
{
}
static void do_complete(io_service_impl* owner, operation* base,
const boost::system::error_code& /*ec*/,
std::size_t /*bytes_transferred*/)
{
// Take ownership of the handler object.
descriptor_read_op* o(static_cast<descriptor_read_op*>(base));
ptr p = { boost::addressof(o->handler_), o, o };
BOOST_ASIO_HANDLER_COMPLETION((o));
// Make a copy of the handler so that the memory can be deallocated before
// the upcall is made. Even if we're not about to make an upcall, a
// sub-object of the handler may be the true owner of the memory associated
// with the handler. Consequently, a local copy of the handler is required
// to ensure that any owning sub-object remains valid until after we have
// deallocated the memory here.
detail::binder2<Handler, boost::system::error_code, std::size_t>
handler(o->handler_, o->ec_, o->bytes_transferred_);
p.h = boost::addressof(handler.handler_);
p.reset();
// Make the upcall if required.
if (owner)
{
fenced_block b(fenced_block::half);
BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
boost_asio_handler_invoke_helpers::invoke(handler, handler.handler_);
BOOST_ASIO_HANDLER_INVOCATION_END;
}
}
private:
Handler handler_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_DESCRIPTOR_READ_OP_HPP

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//
// detail/descriptor_write_op.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_DESCRIPTOR_WRITE_OP_HPP
#define BOOST_ASIO_DETAIL_DESCRIPTOR_WRITE_OP_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#include <boost/utility/addressof.hpp>
#include <boost/asio/detail/bind_handler.hpp>
#include <boost/asio/detail/buffer_sequence_adapter.hpp>
#include <boost/asio/detail/descriptor_ops.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/reactor_op.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename ConstBufferSequence>
class descriptor_write_op_base : public reactor_op
{
public:
descriptor_write_op_base(int descriptor,
const ConstBufferSequence& buffers, func_type complete_func)
: reactor_op(&descriptor_write_op_base::do_perform, complete_func),
descriptor_(descriptor),
buffers_(buffers)
{
}
static bool do_perform(reactor_op* base)
{
descriptor_write_op_base* o(static_cast<descriptor_write_op_base*>(base));
buffer_sequence_adapter<boost::asio::const_buffer,
ConstBufferSequence> bufs(o->buffers_);
return descriptor_ops::non_blocking_write(o->descriptor_,
bufs.buffers(), bufs.count(), o->ec_, o->bytes_transferred_);
}
private:
int descriptor_;
ConstBufferSequence buffers_;
};
template <typename ConstBufferSequence, typename Handler>
class descriptor_write_op
: public descriptor_write_op_base<ConstBufferSequence>
{
public:
BOOST_ASIO_DEFINE_HANDLER_PTR(descriptor_write_op);
descriptor_write_op(int descriptor,
const ConstBufferSequence& buffers, Handler& handler)
: descriptor_write_op_base<ConstBufferSequence>(
descriptor, buffers, &descriptor_write_op::do_complete),
handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler))
{
}
static void do_complete(io_service_impl* owner, operation* base,
const boost::system::error_code& /*ec*/,
std::size_t /*bytes_transferred*/)
{
// Take ownership of the handler object.
descriptor_write_op* o(static_cast<descriptor_write_op*>(base));
ptr p = { boost::addressof(o->handler_), o, o };
BOOST_ASIO_HANDLER_COMPLETION((o));
// Make a copy of the handler so that the memory can be deallocated before
// the upcall is made. Even if we're not about to make an upcall, a
// sub-object of the handler may be the true owner of the memory associated
// with the handler. Consequently, a local copy of the handler is required
// to ensure that any owning sub-object remains valid until after we have
// deallocated the memory here.
detail::binder2<Handler, boost::system::error_code, std::size_t>
handler(o->handler_, o->ec_, o->bytes_transferred_);
p.h = boost::addressof(handler.handler_);
p.reset();
// Make the upcall if required.
if (owner)
{
fenced_block b(fenced_block::half);
BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
boost_asio_handler_invoke_helpers::invoke(handler, handler.handler_);
BOOST_ASIO_HANDLER_INVOCATION_END;
}
}
private:
Handler handler_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_DESCRIPTOR_WRITE_OP_HPP

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//
// detail/dev_poll_reactor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_DEV_POLL_REACTOR_HPP
#define BOOST_ASIO_DETAIL_DEV_POLL_REACTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_DEV_POLL)
#include <boost/limits.hpp>
#include <cstddef>
#include <vector>
#include <sys/devpoll.h>
#include <boost/asio/detail/dev_poll_reactor_fwd.hpp>
#include <boost/asio/detail/hash_map.hpp>
#include <boost/asio/detail/mutex.hpp>
#include <boost/asio/detail/op_queue.hpp>
#include <boost/asio/detail/reactor_op.hpp>
#include <boost/asio/detail/reactor_op_queue.hpp>
#include <boost/asio/detail/select_interrupter.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/timer_op.hpp>
#include <boost/asio/detail/timer_queue_base.hpp>
#include <boost/asio/detail/timer_queue_fwd.hpp>
#include <boost/asio/detail/timer_queue_set.hpp>
#include <boost/asio/io_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class dev_poll_reactor
: public boost::asio::detail::service_base<dev_poll_reactor>
{
public:
enum op_types { read_op = 0, write_op = 1,
connect_op = 1, except_op = 2, max_ops = 3 };
// Per-descriptor data.
struct per_descriptor_data
{
};
// Constructor.
BOOST_ASIO_DECL dev_poll_reactor(boost::asio::io_service& io_service);
// Destructor.
BOOST_ASIO_DECL ~dev_poll_reactor();
// Destroy all user-defined handler objects owned by the service.
BOOST_ASIO_DECL void shutdown_service();
// Recreate internal descriptors following a fork.
BOOST_ASIO_DECL void fork_service(
boost::asio::io_service::fork_event fork_ev);
// Initialise the task.
BOOST_ASIO_DECL void init_task();
// Register a socket with the reactor. Returns 0 on success, system error
// code on failure.
BOOST_ASIO_DECL int register_descriptor(socket_type, per_descriptor_data&);
// Register a descriptor with an associated single operation. Returns 0 on
// success, system error code on failure.
BOOST_ASIO_DECL int register_internal_descriptor(
int op_type, socket_type descriptor,
per_descriptor_data& descriptor_data, reactor_op* op);
// Move descriptor registration from one descriptor_data object to another.
BOOST_ASIO_DECL void move_descriptor(socket_type descriptor,
per_descriptor_data& target_descriptor_data,
per_descriptor_data& source_descriptor_data);
// Post a reactor operation for immediate completion.
void post_immediate_completion(reactor_op* op)
{
io_service_.post_immediate_completion(op);
}
// Start a new operation. The reactor operation will be performed when the
// given descriptor is flagged as ready, or an error has occurred.
BOOST_ASIO_DECL void start_op(int op_type, socket_type descriptor,
per_descriptor_data&, reactor_op* op, bool allow_speculative);
// Cancel all operations associated with the given descriptor. The
// handlers associated with the descriptor will be invoked with the
// operation_aborted error.
BOOST_ASIO_DECL void cancel_ops(socket_type descriptor, per_descriptor_data&);
// Cancel any operations that are running against the descriptor and remove
// its registration from the reactor.
BOOST_ASIO_DECL void deregister_descriptor(socket_type descriptor,
per_descriptor_data&, bool closing);
// Cancel any operations that are running against the descriptor and remove
// its registration from the reactor.
BOOST_ASIO_DECL void deregister_internal_descriptor(
socket_type descriptor, per_descriptor_data&);
// Add a new timer queue to the reactor.
template <typename Time_Traits>
void add_timer_queue(timer_queue<Time_Traits>& queue);
// Remove a timer queue from the reactor.
template <typename Time_Traits>
void remove_timer_queue(timer_queue<Time_Traits>& queue);
// Schedule a new operation in the given timer queue to expire at the
// specified absolute time.
template <typename Time_Traits>
void schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op);
// Cancel the timer operations associated with the given token. Returns the
// number of operations that have been posted or dispatched.
template <typename Time_Traits>
std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
// Run /dev/poll once until interrupted or events are ready to be dispatched.
BOOST_ASIO_DECL void run(bool block, op_queue<operation>& ops);
// Interrupt the select loop.
BOOST_ASIO_DECL void interrupt();
private:
// Create the /dev/poll file descriptor. Throws an exception if the descriptor
// cannot be created.
BOOST_ASIO_DECL static int do_dev_poll_create();
// Helper function to add a new timer queue.
BOOST_ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
// Helper function to remove a timer queue.
BOOST_ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
// Get the timeout value for the /dev/poll DP_POLL operation. The timeout
// value is returned as a number of milliseconds. A return value of -1
// indicates that the poll should block indefinitely.
BOOST_ASIO_DECL int get_timeout();
// Cancel all operations associated with the given descriptor. The do_cancel
// function of the handler objects will be invoked. This function does not
// acquire the dev_poll_reactor's mutex.
BOOST_ASIO_DECL void cancel_ops_unlocked(socket_type descriptor,
const boost::system::error_code& ec);
// Helper class used to reregister descriptors after a fork.
class fork_helper;
friend class fork_helper;
// Add a pending event entry for the given descriptor.
BOOST_ASIO_DECL ::pollfd& add_pending_event_change(int descriptor);
// The io_service implementation used to post completions.
io_service_impl& io_service_;
// Mutex to protect access to internal data.
boost::asio::detail::mutex mutex_;
// The /dev/poll file descriptor.
int dev_poll_fd_;
// Vector of /dev/poll events waiting to be written to the descriptor.
std::vector< ::pollfd> pending_event_changes_;
// Hash map to associate a descriptor with a pending event change index.
hash_map<int, std::size_t> pending_event_change_index_;
// The interrupter is used to break a blocking DP_POLL operation.
select_interrupter interrupter_;
// The queues of read, write and except operations.
reactor_op_queue<socket_type> op_queue_[max_ops];
// The timer queues.
timer_queue_set timer_queues_;
// Whether the service has been shut down.
bool shutdown_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/detail/impl/dev_poll_reactor.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/dev_poll_reactor.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // defined(BOOST_ASIO_HAS_DEV_POLL)
#endif // BOOST_ASIO_DETAIL_DEV_POLL_REACTOR_HPP

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//
// detail/dev_poll_reactor_fwd.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_DEV_POLL_REACTOR_FWD_HPP
#define BOOST_ASIO_DETAIL_DEV_POLL_REACTOR_FWD_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_DEV_POLL)
namespace boost {
namespace asio {
namespace detail {
class dev_poll_reactor;
} // namespace detail
} // namespace asio
} // namespace boost
#endif // defined(BOOST_ASIO_HAS_DEV_POLL)
#endif // BOOST_ASIO_DETAIL_DEV_POLL_REACTOR_FWD_HPP

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//
// detail/epoll_reactor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_EPOLL_REACTOR_HPP
#define BOOST_ASIO_DETAIL_EPOLL_REACTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_EPOLL)
#include <boost/limits.hpp>
#include <boost/asio/io_service.hpp>
#include <boost/asio/detail/atomic_count.hpp>
#include <boost/asio/detail/epoll_reactor_fwd.hpp>
#include <boost/asio/detail/mutex.hpp>
#include <boost/asio/detail/object_pool.hpp>
#include <boost/asio/detail/op_queue.hpp>
#include <boost/asio/detail/reactor_op.hpp>
#include <boost/asio/detail/select_interrupter.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/timer_op.hpp>
#include <boost/asio/detail/timer_queue_base.hpp>
#include <boost/asio/detail/timer_queue_fwd.hpp>
#include <boost/asio/detail/timer_queue_set.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class epoll_reactor
: public boost::asio::detail::service_base<epoll_reactor>
{
public:
enum op_types { read_op = 0, write_op = 1,
connect_op = 1, except_op = 2, max_ops = 3 };
// Per-descriptor queues.
class descriptor_state : operation
{
friend class epoll_reactor;
friend class object_pool_access;
descriptor_state* next_;
descriptor_state* prev_;
bool op_queue_is_empty_[max_ops];
mutex mutex_;
epoll_reactor* reactor_;
int descriptor_;
op_queue<reactor_op> op_queue_[max_ops];
bool shutdown_;
BOOST_ASIO_DECL descriptor_state();
void set_ready_events(uint32_t events) { task_result_ = events; }
BOOST_ASIO_DECL operation* perform_io(uint32_t events);
BOOST_ASIO_DECL static void do_complete(
io_service_impl* owner, operation* base,
const boost::system::error_code& ec, std::size_t bytes_transferred);
};
// Per-descriptor data.
typedef descriptor_state* per_descriptor_data;
// Constructor.
BOOST_ASIO_DECL epoll_reactor(boost::asio::io_service& io_service);
// Destructor.
BOOST_ASIO_DECL ~epoll_reactor();
// Destroy all user-defined handler objects owned by the service.
BOOST_ASIO_DECL void shutdown_service();
// Recreate internal descriptors following a fork.
BOOST_ASIO_DECL void fork_service(
boost::asio::io_service::fork_event fork_ev);
// Initialise the task.
BOOST_ASIO_DECL void init_task();
// Register a socket with the reactor. Returns 0 on success, system error
// code on failure.
BOOST_ASIO_DECL int register_descriptor(socket_type descriptor,
per_descriptor_data& descriptor_data);
// Register a descriptor with an associated single operation. Returns 0 on
// success, system error code on failure.
BOOST_ASIO_DECL int register_internal_descriptor(
int op_type, socket_type descriptor,
per_descriptor_data& descriptor_data, reactor_op* op);
// Move descriptor registration from one descriptor_data object to another.
BOOST_ASIO_DECL void move_descriptor(socket_type descriptor,
per_descriptor_data& target_descriptor_data,
per_descriptor_data& source_descriptor_data);
// Post a reactor operation for immediate completion.
void post_immediate_completion(reactor_op* op)
{
io_service_.post_immediate_completion(op);
}
// Start a new operation. The reactor operation will be performed when the
// given descriptor is flagged as ready, or an error has occurred.
BOOST_ASIO_DECL void start_op(int op_type, socket_type descriptor,
per_descriptor_data& descriptor_data, reactor_op* op,
bool allow_speculative);
// Cancel all operations associated with the given descriptor. The
// handlers associated with the descriptor will be invoked with the
// operation_aborted error.
BOOST_ASIO_DECL void cancel_ops(socket_type descriptor,
per_descriptor_data& descriptor_data);
// Cancel any operations that are running against the descriptor and remove
// its registration from the reactor.
BOOST_ASIO_DECL void deregister_descriptor(socket_type descriptor,
per_descriptor_data& descriptor_data, bool closing);
// Remote the descriptor's registration from the reactor.
BOOST_ASIO_DECL void deregister_internal_descriptor(
socket_type descriptor, per_descriptor_data& descriptor_data);
// Add a new timer queue to the reactor.
template <typename Time_Traits>
void add_timer_queue(timer_queue<Time_Traits>& timer_queue);
// Remove a timer queue from the reactor.
template <typename Time_Traits>
void remove_timer_queue(timer_queue<Time_Traits>& timer_queue);
// Schedule a new operation in the given timer queue to expire at the
// specified absolute time.
template <typename Time_Traits>
void schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op);
// Cancel the timer operations associated with the given token. Returns the
// number of operations that have been posted or dispatched.
template <typename Time_Traits>
std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
// Run epoll once until interrupted or events are ready to be dispatched.
BOOST_ASIO_DECL void run(bool block, op_queue<operation>& ops);
// Interrupt the select loop.
BOOST_ASIO_DECL void interrupt();
private:
// The hint to pass to epoll_create to size its data structures.
enum { epoll_size = 20000 };
// Create the epoll file descriptor. Throws an exception if the descriptor
// cannot be created.
BOOST_ASIO_DECL static int do_epoll_create();
// Create the timerfd file descriptor. Does not throw.
BOOST_ASIO_DECL static int do_timerfd_create();
// Allocate a new descriptor state object.
BOOST_ASIO_DECL descriptor_state* allocate_descriptor_state();
// Free an existing descriptor state object.
BOOST_ASIO_DECL void free_descriptor_state(descriptor_state* s);
// Helper function to add a new timer queue.
BOOST_ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
// Helper function to remove a timer queue.
BOOST_ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
// Called to recalculate and update the timeout.
BOOST_ASIO_DECL void update_timeout();
// Get the timeout value for the epoll_wait call. The timeout value is
// returned as a number of milliseconds. A return value of -1 indicates
// that epoll_wait should block indefinitely.
BOOST_ASIO_DECL int get_timeout();
#if defined(BOOST_ASIO_HAS_TIMERFD)
// Get the timeout value for the timer descriptor. The return value is the
// flag argument to be used when calling timerfd_settime.
BOOST_ASIO_DECL int get_timeout(itimerspec& ts);
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
// The io_service implementation used to post completions.
io_service_impl& io_service_;
// Mutex to protect access to internal data.
mutex mutex_;
// The interrupter is used to break a blocking epoll_wait call.
select_interrupter interrupter_;
// The epoll file descriptor.
int epoll_fd_;
// The timer file descriptor.
int timer_fd_;
// The timer queues.
timer_queue_set timer_queues_;
// Whether the service has been shut down.
bool shutdown_;
// Mutex to protect access to the registered descriptors.
mutex registered_descriptors_mutex_;
// Keep track of all registered descriptors.
object_pool<descriptor_state> registered_descriptors_;
// Helper class to do post-perform_io cleanup.
struct perform_io_cleanup_on_block_exit;
friend struct perform_io_cleanup_on_block_exit;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/detail/impl/epoll_reactor.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/epoll_reactor.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // defined(BOOST_ASIO_HAS_EPOLL)
#endif // BOOST_ASIO_DETAIL_EPOLL_REACTOR_HPP

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//
// detail/epoll_reactor_fwd.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_EPOLL_REACTOR_FWD_HPP
#define BOOST_ASIO_DETAIL_EPOLL_REACTOR_FWD_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_EPOLL)
namespace boost {
namespace asio {
namespace detail {
class epoll_reactor;
} // namespace detail
} // namespace asio
} // namespace boost
#endif // defined(BOOST_ASIO_HAS_EPOLL)
#endif // BOOST_ASIO_DETAIL_EPOLL_REACTOR_FWD_HPP

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//
// detail/event.hpp
// ~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_EVENT_HPP
#define BOOST_ASIO_DETAIL_EVENT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
# include <boost/asio/detail/null_event.hpp>
#elif defined(BOOST_WINDOWS)
# include <boost/asio/detail/win_event.hpp>
#elif defined(BOOST_HAS_PTHREADS)
# include <boost/asio/detail/posix_event.hpp>
#else
# error Only Windows and POSIX are supported!
#endif
namespace boost {
namespace asio {
namespace detail {
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
typedef null_event event;
#elif defined(BOOST_WINDOWS)
typedef win_event event;
#elif defined(BOOST_HAS_PTHREADS)
typedef posix_event event;
#endif
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_EVENT_HPP

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//
// detail/eventfd_select_interrupter.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2008 Roelof Naude (roelof.naude at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_EVENTFD_SELECT_INTERRUPTER_HPP
#define BOOST_ASIO_DETAIL_EVENTFD_SELECT_INTERRUPTER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_EVENTFD)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class eventfd_select_interrupter
{
public:
// Constructor.
BOOST_ASIO_DECL eventfd_select_interrupter();
// Destructor.
BOOST_ASIO_DECL ~eventfd_select_interrupter();
// Recreate the interrupter's descriptors. Used after a fork.
BOOST_ASIO_DECL void recreate();
// Interrupt the select call.
BOOST_ASIO_DECL void interrupt();
// Reset the select interrupt. Returns true if the call was interrupted.
BOOST_ASIO_DECL bool reset();
// Get the read descriptor to be passed to select.
int read_descriptor() const
{
return read_descriptor_;
}
private:
// Open the descriptors. Throws on error.
BOOST_ASIO_DECL void open_descriptors();
// Close the descriptors.
BOOST_ASIO_DECL void close_descriptors();
// The read end of a connection used to interrupt the select call. This file
// descriptor is passed to select such that when it is time to stop, a single
// 64bit value will be written on the other end of the connection and this
// descriptor will become readable.
int read_descriptor_;
// The write end of a connection used to interrupt the select call. A single
// 64bit non-zero value may be written to this to wake up the select which is
// waiting for the other end to become readable. This descriptor will only
// differ from the read descriptor when a pipe is used.
int write_descriptor_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/eventfd_select_interrupter.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // defined(BOOST_ASIO_HAS_EVENTFD)
#endif // BOOST_ASIO_DETAIL_EVENTFD_SELECT_INTERRUPTER_HPP

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//
// detail/fd_set_adapter.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_FD_SET_ADAPTER_HPP
#define BOOST_ASIO_DETAIL_FD_SET_ADAPTER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/posix_fd_set_adapter.hpp>
#include <boost/asio/detail/win_fd_set_adapter.hpp>
namespace boost {
namespace asio {
namespace detail {
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
typedef win_fd_set_adapter fd_set_adapter;
#else
typedef posix_fd_set_adapter fd_set_adapter;
#endif
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_FD_SET_ADAPTER_HPP

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//
// detail/fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) \
|| defined(BOOST_ASIO_DISABLE_THREADS) \
|| defined(BOOST_ASIO_DISABLE_FENCED_BLOCK)
# include <boost/asio/detail/null_fenced_block.hpp>
#elif defined(__MACH__) && defined(__APPLE__)
# include <boost/asio/detail/macos_fenced_block.hpp>
#elif defined(__sun)
# include <boost/asio/detail/solaris_fenced_block.hpp>
#elif defined(__GNUC__) && defined(__arm__)
# include <boost/asio/detail/gcc_arm_fenced_block.hpp>
#elif defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
# include <boost/asio/detail/gcc_hppa_fenced_block.hpp>
#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
# include <boost/asio/detail/gcc_x86_fenced_block.hpp>
#elif defined(__GNUC__) \
&& ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)) \
&& !defined(__INTEL_COMPILER) && !defined(__ICL) \
&& !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
# include <boost/asio/detail/gcc_sync_fenced_block.hpp>
#elif defined(BOOST_WINDOWS) && !defined(UNDER_CE)
# include <boost/asio/detail/win_fenced_block.hpp>
#else
# include <boost/asio/detail/null_fenced_block.hpp>
#endif
namespace boost {
namespace asio {
namespace detail {
#if !defined(BOOST_HAS_THREADS) \
|| defined(BOOST_ASIO_DISABLE_THREADS) \
|| defined(BOOST_ASIO_DISABLE_FENCED_BLOCK)
typedef null_fenced_block fenced_block;
#elif defined(__MACH__) && defined(__APPLE__)
typedef macos_fenced_block fenced_block;
#elif defined(__sun)
typedef solaris_fenced_block fenced_block;
#elif defined(__GNUC__) && defined(__arm__)
typedef gcc_arm_fenced_block fenced_block;
#elif defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
typedef gcc_hppa_fenced_block fenced_block;
#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
typedef gcc_x86_fenced_block fenced_block;
#elif defined(__GNUC__) \
&& ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)) \
&& !defined(__INTEL_COMPILER) && !defined(__ICL) \
&& !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
typedef gcc_sync_fenced_block fenced_block;
#elif defined(BOOST_WINDOWS) && !defined(UNDER_CE)
typedef win_fenced_block fenced_block;
#else
typedef null_fenced_block fenced_block;
#endif
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_FENCED_BLOCK_HPP

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//
// detail/gcc_arm_fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(__GNUC__) && defined(__arm__)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class gcc_arm_fenced_block
: private noncopyable
{
public:
enum half_t { half };
enum full_t { full };
// Constructor for a half fenced block.
explicit gcc_arm_fenced_block(half_t)
{
}
// Constructor for a full fenced block.
explicit gcc_arm_fenced_block(full_t)
{
barrier();
}
// Destructor.
~gcc_arm_fenced_block()
{
barrier();
}
private:
static void barrier()
{
#if defined(__ARM_ARCH_4__) \
|| defined(__ARM_ARCH_4T__) \
|| defined(__ARM_ARCH_5__) \
|| defined(__ARM_ARCH_5E__) \
|| defined(__ARM_ARCH_5T__) \
|| defined(__ARM_ARCH_5TE__) \
|| defined(__ARM_ARCH_5TEJ__) \
|| defined(__ARM_ARCH_6__) \
|| defined(__ARM_ARCH_6J__) \
|| defined(__ARM_ARCH_6K__) \
|| defined(__ARM_ARCH_6Z__) \
|| defined(__ARM_ARCH_6ZK__) \
|| defined(__ARM_ARCH_6T2__)
# if defined(__thumb__)
// This is just a placeholder and almost certainly not sufficient.
__asm__ __volatile__ ("" : : : "memory");
# else // defined(__thumb__)
int a = 0, b = 0;
__asm__ __volatile__ ("swp %0, %1, [%2]"
: "=&r"(a) : "r"(1), "r"(&b) : "memory", "cc");
# endif // defined(__thumb__)
#else
// ARMv7 and later.
__asm__ __volatile__ ("dmb" : : : "memory");
#endif
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(__GNUC__) && defined(__arm__)
#endif // BOOST_ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP

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//
// detail/gcc_hppa_fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class gcc_hppa_fenced_block
: private noncopyable
{
public:
enum half_t { half };
enum full_t { full };
// Constructor for a half fenced block.
explicit gcc_hppa_fenced_block(half_t)
{
}
// Constructor for a full fenced block.
explicit gcc_hppa_fenced_block(full_t)
{
barrier();
}
// Destructor.
~gcc_hppa_fenced_block()
{
barrier();
}
private:
static void barrier()
{
// This is just a placeholder and almost certainly not sufficient.
__asm__ __volatile__ ("" : : : "memory");
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
#endif // BOOST_ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP

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//
// detail/gcc_sync_fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(__GNUC__) \
&& ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)) \
&& !defined(__INTEL_COMPILER) && !defined(__ICL) \
&& !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class gcc_sync_fenced_block
: private noncopyable
{
public:
enum half_or_full_t { half, full };
// Constructor.
explicit gcc_sync_fenced_block(half_or_full_t)
: value_(0)
{
__sync_lock_test_and_set(&value_, 1);
}
// Destructor.
~gcc_sync_fenced_block()
{
__sync_lock_release(&value_);
}
private:
int value_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(__GNUC__)
// && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4))
// && !defined(__INTEL_COMPILER) && !defined(__ICL)
// && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
#endif // BOOST_ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP

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//
// detail/gcc_x86_fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_GCC_X86_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_GCC_X86_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class gcc_x86_fenced_block
: private noncopyable
{
public:
enum half_t { half };
enum full_t { full };
// Constructor for a half fenced block.
explicit gcc_x86_fenced_block(half_t)
{
}
// Constructor for a full fenced block.
explicit gcc_x86_fenced_block(full_t)
{
barrier1();
}
// Destructor.
~gcc_x86_fenced_block()
{
barrier2();
}
private:
static int barrier1()
{
int r = 0, m = 1;
__asm__ __volatile__ (
"xchgl %0, %1" :
"=r"(r), "=m"(m) :
"0"(1), "m"(m) :
"memory", "cc");
return r;
}
static void barrier2()
{
#if defined(__SSE2__)
__asm__ __volatile__ ("mfence" ::: "memory");
#else // defined(__SSE2__)
barrier1();
#endif // defined(__SSE2__)
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
#endif // BOOST_ASIO_DETAIL_GCC_X86_FENCED_BLOCK_HPP

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//
// detail/handler_alloc_helpers.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
#define BOOST_ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/utility/addressof.hpp>
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/handler_alloc_hook.hpp>
#include <boost/asio/detail/push_options.hpp>
// Calls to asio_handler_allocate and asio_handler_deallocate must be made from
// a namespace that does not contain any overloads of these functions. The
// boost_asio_handler_alloc_helpers namespace is defined here for that purpose.
namespace boost_asio_handler_alloc_helpers {
template <typename Handler>
inline void* allocate(std::size_t s, Handler& h)
{
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)) \
|| BOOST_WORKAROUND(__GNUC__, < 3)
return ::operator new(s);
#else
using boost::asio::asio_handler_allocate;
return asio_handler_allocate(s, boost::addressof(h));
#endif
}
template <typename Handler>
inline void deallocate(void* p, std::size_t s, Handler& h)
{
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)) \
|| BOOST_WORKAROUND(__GNUC__, < 3)
::operator delete(p);
#else
using boost::asio::asio_handler_deallocate;
asio_handler_deallocate(p, s, boost::addressof(h));
#endif
}
} // namespace boost_asio_handler_alloc_helpers
#define BOOST_ASIO_DEFINE_HANDLER_PTR(op) \
struct ptr \
{ \
Handler* h; \
void* v; \
op* p; \
~ptr() \
{ \
reset(); \
} \
void reset() \
{ \
if (p) \
{ \
p->~op(); \
p = 0; \
} \
if (v) \
{ \
boost_asio_handler_alloc_helpers::deallocate(v, sizeof(op), *h); \
v = 0; \
} \
} \
} \
/**/
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP

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//
// detail/handler_invoke_helpers.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
#define BOOST_ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/utility/addressof.hpp>
#include <boost/asio/handler_invoke_hook.hpp>
#include <boost/asio/detail/push_options.hpp>
// Calls to asio_handler_invoke must be made from a namespace that does not
// contain overloads of this function. The boost_asio_handler_invoke_helpers
// namespace is defined here for that purpose.
namespace boost_asio_handler_invoke_helpers {
template <typename Function, typename Context>
inline void invoke(Function& function, Context& context)
{
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)) \
|| BOOST_WORKAROUND(__GNUC__, < 3)
Function tmp(function);
tmp();
#else
using boost::asio::asio_handler_invoke;
asio_handler_invoke(function, boost::addressof(context));
#endif
}
template <typename Function, typename Context>
inline void invoke(const Function& function, Context& context)
{
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)) \
|| BOOST_WORKAROUND(__GNUC__, < 3)
Function tmp(function);
tmp();
#else
using boost::asio::asio_handler_invoke;
asio_handler_invoke(function, boost::addressof(context));
#endif
}
} // namespace boost_asio_handler_invoke_helpers
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP

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//
// detail/handler_tracking.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_HANDLER_TRACKING_HPP
#define BOOST_ASIO_DETAIL_HANDLER_TRACKING_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
# include <boost/cstdint.hpp>
# include <boost/system/error_code.hpp>
# include <boost/asio/detail/static_mutex.hpp>
# include <boost/asio/detail/tss_ptr.hpp>
#endif // defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
#if defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
class handler_tracking
{
public:
class completion;
// Base class for objects containing tracked handlers.
class tracked_handler
{
private:
// Only the handler_tracking class will have access to the id.
friend class handler_tracking;
friend class completion;
boost::uint64_t id_;
protected:
// Constructor initialises with no id.
tracked_handler() : id_(0) {}
// Prevent deletion through this type.
~tracked_handler() {}
};
// Initialise the tracking system.
BOOST_ASIO_DECL static void init();
// Record the creation of a tracked handler.
BOOST_ASIO_DECL static void creation(tracked_handler* h,
const char* object_type, void* object, const char* op_name);
class completion
{
public:
// Constructor records that handler is to be invoked with no arguments.
BOOST_ASIO_DECL explicit completion(tracked_handler* h);
// Destructor records only when an exception is thrown from the handler, or
// if the memory is being freed without the handler having been invoked.
BOOST_ASIO_DECL ~completion();
// Records that handler is to be invoked with no arguments.
BOOST_ASIO_DECL void invocation_begin();
// Records that handler is to be invoked with one arguments.
BOOST_ASIO_DECL void invocation_begin(const boost::system::error_code& ec);
// Constructor records that handler is to be invoked with two arguments.
BOOST_ASIO_DECL void invocation_begin(
const boost::system::error_code& ec, std::size_t bytes_transferred);
// Constructor records that handler is to be invoked with two arguments.
BOOST_ASIO_DECL void invocation_begin(
const boost::system::error_code& ec, int signal_number);
// Constructor records that handler is to be invoked with two arguments.
BOOST_ASIO_DECL void invocation_begin(
const boost::system::error_code& ec, const char* arg);
// Record that handler invocation has ended.
BOOST_ASIO_DECL void invocation_end();
private:
friend class handler_tracking;
boost::uint64_t id_;
bool invoked_;
completion* next_;
};
// Record an operation that affects pending handlers.
BOOST_ASIO_DECL static void operation(const char* object_type,
void* object, const char* op_name);
// Write a line of output.
BOOST_ASIO_DECL static void write_line(const char* format, ...);
private:
struct tracking_state;
BOOST_ASIO_DECL static tracking_state* get_state();
};
# define BOOST_ASIO_INHERIT_TRACKED_HANDLER \
: public boost::asio::detail::handler_tracking::tracked_handler
# define BOOST_ASIO_ALSO_INHERIT_TRACKED_HANDLER \
, public boost::asio::detail::handler_tracking::tracked_handler
# define BOOST_ASIO_HANDLER_TRACKING_INIT \
boost::asio::detail::handler_tracking::init()
# define BOOST_ASIO_HANDLER_CREATION(args) \
boost::asio::detail::handler_tracking::creation args
# define BOOST_ASIO_HANDLER_COMPLETION(args) \
boost::asio::detail::handler_tracking::completion tracked_completion args
# define BOOST_ASIO_HANDLER_INVOCATION_BEGIN(args) \
tracked_completion.invocation_begin args
# define BOOST_ASIO_HANDLER_INVOCATION_END \
tracked_completion.invocation_end()
# define BOOST_ASIO_HANDLER_OPERATION(args) \
boost::asio::detail::handler_tracking::operation args
#else // defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
# define BOOST_ASIO_INHERIT_TRACKED_HANDLER
# define BOOST_ASIO_ALSO_INHERIT_TRACKED_HANDLER
# define BOOST_ASIO_HANDLER_TRACKING_INIT (void)0
# define BOOST_ASIO_HANDLER_CREATION(args) (void)0
# define BOOST_ASIO_HANDLER_COMPLETION(args) (void)0
# define BOOST_ASIO_HANDLER_INVOCATION_BEGIN(args) (void)0
# define BOOST_ASIO_HANDLER_INVOCATION_END (void)0
# define BOOST_ASIO_HANDLER_OPERATION(args) (void)0
#endif // defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/handler_tracking.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // BOOST_ASIO_DETAIL_HANDLER_TRACKING_HPP

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//
// detail/handler_type_requirements.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
#define BOOST_ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
// Older versions of gcc have difficulty compiling the sizeof expressions where
// we test the handler type requirements. We'll disable checking of handler type
// requirements for those compilers, but otherwise enable it by default.
#if !defined(BOOST_ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
# if !defined(__GNUC__) || (__GNUC__ >= 4)
# define BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS 1
# endif // !defined(__GNUC__) || (__GNUC__ >= 4)
#endif // !defined(BOOST_ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
// With C++0x we can use a combination of enhanced SFINAE and static_assert to
// generate better template error messages. As this technique is not yet widely
// portable, we'll only enable it for tested compilers.
#if !defined(BOOST_ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT 1
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_MSVC)
# if (_MSC_VER >= 1600)
# define BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT 1
# endif // (_MSC_VER >= 1600)
# endif // defined(BOOST_MSVC)
#endif // !defined(BOOST_ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
namespace boost {
namespace asio {
namespace detail {
#if defined(BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
# if defined(BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
template <typename Handler>
auto zero_arg_handler_test(Handler h, void*)
-> decltype(
sizeof(Handler(static_cast<const Handler&>(h))),
((h)()),
char(0));
template <typename Handler>
char (&zero_arg_handler_test(Handler, ...))[2];
template <typename Handler, typename Arg1>
auto one_arg_handler_test(Handler h, Arg1* a1)
-> decltype(
sizeof(Handler(static_cast<const Handler&>(h))),
((h)(*a1)),
char(0));
template <typename Handler>
char (&one_arg_handler_test(Handler h, ...))[2];
template <typename Handler, typename Arg1, typename Arg2>
auto two_arg_handler_test(Handler h, Arg1* a1, Arg2* a2)
-> decltype(
sizeof(Handler(static_cast<const Handler&>(h))),
((h)(*a1, *a2)),
char(0));
template <typename Handler>
char (&two_arg_handler_test(Handler, ...))[2];
# define BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(expr, msg) \
static_assert(expr, msg);
# else // defined(BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
# define BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(expr, msg)
# endif // defined(BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
template <typename T> T& lvref();
template <typename T> T& lvref(T);
template <typename T> const T& clvref(T);
template <typename T> char argbyv(T);
template <int>
struct handler_type_requirements
{
};
#define BOOST_ASIO_COMPLETION_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::zero_arg_handler_test( \
handler, 0)) == 1, \
"CompletionHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)(), \
char(0))>
#define BOOST_ASIO_READ_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::two_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0), \
static_cast<const std::size_t*>(0))) == 1, \
"ReadHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>(), \
boost::asio::detail::lvref<const std::size_t>()), \
char(0))>
#define BOOST_ASIO_WRITE_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::two_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0), \
static_cast<const std::size_t*>(0))) == 1, \
"WriteHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>(), \
boost::asio::detail::lvref<const std::size_t>()), \
char(0))>
#define BOOST_ASIO_ACCEPT_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::one_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0))) == 1, \
"AcceptHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>()), \
char(0))>
#define BOOST_ASIO_CONNECT_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::one_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0))) == 1, \
"ConnectHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>()), \
char(0))>
#define BOOST_ASIO_COMPOSED_CONNECT_HANDLER_CHECK( \
handler_type, handler, iter_type) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::two_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0), \
static_cast<const iter_type*>(0))) == 1, \
"ComposedConnectHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>(), \
boost::asio::detail::lvref<const iter_type>()), \
char(0))>
#define BOOST_ASIO_RESOLVE_HANDLER_CHECK( \
handler_type, handler, iter_type) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::two_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0), \
static_cast<const iter_type*>(0))) == 1, \
"ResolveHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>(), \
boost::asio::detail::lvref<const iter_type>()), \
char(0))>
#define BOOST_ASIO_WAIT_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::one_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0))) == 1, \
"WaitHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>()), \
char(0))>
#define BOOST_ASIO_SIGNAL_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::two_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0), \
static_cast<const int*>(0))) == 1, \
"SignalHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>(), \
boost::asio::detail::lvref<const int>()), \
char(0))>
#define BOOST_ASIO_HANDSHAKE_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::one_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0))) == 1, \
"HandshakeHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>()), \
char(0))>
#define BOOST_ASIO_SHUTDOWN_HANDLER_CHECK( \
handler_type, handler) \
\
BOOST_ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
sizeof(boost::asio::detail::one_arg_handler_test( \
handler, \
static_cast<const boost::system::error_code*>(0))) == 1, \
"ShutdownHandler type requirements not met") \
\
typedef boost::asio::detail::handler_type_requirements< \
sizeof( \
boost::asio::detail::argbyv( \
boost::asio::detail::clvref(handler))) + \
sizeof( \
boost::asio::detail::lvref(handler)( \
boost::asio::detail::lvref<const boost::system::error_code>()), \
char(0))>
#else // !defined(BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
#define BOOST_ASIO_COMPLETION_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_READ_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_WRITE_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_ACCEPT_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_CONNECT_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_COMPOSED_CONNECT_HANDLER_CHECK( \
handler_type, handler, iter_type) \
typedef int
#define BOOST_ASIO_RESOLVE_HANDLER_CHECK( \
handler_type, handler, iter_type) \
typedef int
#define BOOST_ASIO_WAIT_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_SIGNAL_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_HANDSHAKE_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#define BOOST_ASIO_SHUTDOWN_HANDLER_CHECK( \
handler_type, handler) \
typedef int
#endif // !defined(BOOST_ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP

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//
// detail/hash_map.hpp
// ~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_HASH_MAP_HPP
#define BOOST_ASIO_DETAIL_HASH_MAP_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/assert.hpp>
#include <list>
#include <utility>
#include <boost/asio/detail/noncopyable.hpp>
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# include <boost/asio/detail/socket_types.hpp>
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
inline std::size_t calculate_hash_value(int i)
{
return static_cast<std::size_t>(i);
}
inline std::size_t calculate_hash_value(void* p)
{
return reinterpret_cast<std::size_t>(p)
+ (reinterpret_cast<std::size_t>(p) >> 3);
}
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
inline std::size_t calculate_hash_value(SOCKET s)
{
return static_cast<std::size_t>(s);
}
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Note: assumes K and V are POD types.
template <typename K, typename V>
class hash_map
: private noncopyable
{
public:
// The type of a value in the map.
typedef std::pair<K, V> value_type;
// The type of a non-const iterator over the hash map.
typedef typename std::list<value_type>::iterator iterator;
// The type of a const iterator over the hash map.
typedef typename std::list<value_type>::const_iterator const_iterator;
// Constructor.
hash_map()
: size_(0),
buckets_(0),
num_buckets_(0)
{
}
// Destructor.
~hash_map()
{
delete[] buckets_;
}
// Get an iterator for the beginning of the map.
iterator begin()
{
return values_.begin();
}
// Get an iterator for the beginning of the map.
const_iterator begin() const
{
return values_.begin();
}
// Get an iterator for the end of the map.
iterator end()
{
return values_.end();
}
// Get an iterator for the end of the map.
const_iterator end() const
{
return values_.end();
}
// Check whether the map is empty.
bool empty() const
{
return values_.empty();
}
// Find an entry in the map.
iterator find(const K& k)
{
if (num_buckets_)
{
size_t bucket = calculate_hash_value(k) % num_buckets_;
iterator it = buckets_[bucket].first;
if (it == values_.end())
return values_.end();
iterator end_it = buckets_[bucket].last;
++end_it;
while (it != end_it)
{
if (it->first == k)
return it;
++it;
}
}
return values_.end();
}
// Find an entry in the map.
const_iterator find(const K& k) const
{
if (num_buckets_)
{
size_t bucket = calculate_hash_value(k) % num_buckets_;
const_iterator it = buckets_[bucket].first;
if (it == values_.end())
return it;
const_iterator end_it = buckets_[bucket].last;
++end_it;
while (it != end_it)
{
if (it->first == k)
return it;
++it;
}
}
return values_.end();
}
// Insert a new entry into the map.
std::pair<iterator, bool> insert(const value_type& v)
{
if (size_ + 1 >= num_buckets_)
rehash(hash_size(size_ + 1));
size_t bucket = calculate_hash_value(v.first) % num_buckets_;
iterator it = buckets_[bucket].first;
if (it == values_.end())
{
buckets_[bucket].first = buckets_[bucket].last =
values_insert(values_.end(), v);
++size_;
return std::pair<iterator, bool>(buckets_[bucket].last, true);
}
iterator end_it = buckets_[bucket].last;
++end_it;
while (it != end_it)
{
if (it->first == v.first)
return std::pair<iterator, bool>(it, false);
++it;
}
buckets_[bucket].last = values_insert(end_it, v);
++size_;
return std::pair<iterator, bool>(buckets_[bucket].last, true);
}
// Erase an entry from the map.
void erase(iterator it)
{
BOOST_ASSERT(it != values_.end());
size_t bucket = calculate_hash_value(it->first) % num_buckets_;
bool is_first = (it == buckets_[bucket].first);
bool is_last = (it == buckets_[bucket].last);
if (is_first && is_last)
buckets_[bucket].first = buckets_[bucket].last = values_.end();
else if (is_first)
++buckets_[bucket].first;
else if (is_last)
--buckets_[bucket].last;
values_erase(it);
--size_;
}
// Erase a key from the map.
void erase(const K& k)
{
iterator it = find(k);
if (it != values_.end())
erase(it);
}
// Remove all entries from the map.
void clear()
{
// Clear the values.
values_.clear();
size_ = 0;
// Initialise all buckets to empty.
iterator end_it = values_.end();
for (size_t i = 0; i < num_buckets_; ++i)
buckets_[i].first = buckets_[i].last = end_it;
}
private:
// Calculate the hash size for the specified number of elements.
static std::size_t hash_size(std::size_t num_elems)
{
static std::size_t sizes[] =
{
#if defined(BOOST_ASIO_HASH_MAP_BUCKETS)
BOOST_ASIO_HASH_MAP_BUCKETS
#else // BOOST_ASIO_HASH_MAP_BUCKETS
3, 13, 23, 53, 97, 193, 389, 769, 1543, 3079, 6151, 12289, 24593,
49157, 98317, 196613, 393241, 786433, 1572869, 3145739, 6291469,
12582917, 25165843
#endif // BOOST_ASIO_HASH_MAP_BUCKETS
};
const std::size_t nth_size = sizeof(sizes) / sizeof(std::size_t) - 1;
for (std::size_t i = 0; i < nth_size; ++i)
if (num_elems < sizes[i])
return sizes[i];
return sizes[nth_size];
}
// Re-initialise the hash from the values already contained in the list.
void rehash(std::size_t num_buckets)
{
if (num_buckets == num_buckets_)
return;
num_buckets_ = num_buckets;
iterator end_iter = values_.end();
// Update number of buckets and initialise all buckets to empty.
bucket_type* tmp = new bucket_type[num_buckets_];
delete[] buckets_;
buckets_ = tmp;
for (std::size_t i = 0; i < num_buckets_; ++i)
buckets_[i].first = buckets_[i].last = end_iter;
// Put all values back into the hash.
iterator iter = values_.begin();
while (iter != end_iter)
{
std::size_t bucket = calculate_hash_value(iter->first) % num_buckets_;
if (buckets_[bucket].last == end_iter)
{
buckets_[bucket].first = buckets_[bucket].last = iter++;
}
else if (++buckets_[bucket].last == iter)
{
++iter;
}
else
{
values_.splice(buckets_[bucket].last, values_, iter++);
--buckets_[bucket].last;
}
}
}
// Insert an element into the values list by splicing from the spares list,
// if a spare is available, and otherwise by inserting a new element.
iterator values_insert(iterator it, const value_type& v)
{
if (spares_.empty())
{
return values_.insert(it, v);
}
else
{
spares_.front() = v;
values_.splice(it, spares_, spares_.begin());
return --it;
}
}
// Erase an element from the values list by splicing it to the spares list.
void values_erase(iterator it)
{
*it = value_type();
spares_.splice(spares_.begin(), values_, it);
}
// The number of elements in the hash.
std::size_t size_;
// The list of all values in the hash map.
std::list<value_type> values_;
// The list of spare nodes waiting to be recycled. Assumes that POD types only
// are stored in the hash map.
std::list<value_type> spares_;
// The type for a bucket in the hash table.
struct bucket_type
{
iterator first;
iterator last;
};
// The buckets in the hash.
bucket_type* buckets_;
// The number of buckets in the hash.
std::size_t num_buckets_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_HASH_MAP_HPP

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//
// detail/impl/descriptor_ops.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP
#define BOOST_ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <cerrno>
#include <boost/asio/detail/descriptor_ops.hpp>
#include <boost/asio/error.hpp>
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
namespace descriptor_ops {
int open(const char* path, int flags, boost::system::error_code& ec)
{
errno = 0;
int result = error_wrapper(::open(path, flags), ec);
if (result >= 0)
ec = boost::system::error_code();
return result;
}
int close(int d, state_type& state, boost::system::error_code& ec)
{
int result = 0;
if (d != -1)
{
errno = 0;
result = error_wrapper(::close(d), ec);
if (result != 0
&& (ec == boost::asio::error::would_block
|| ec == boost::asio::error::try_again))
{
// According to UNIX Network Programming Vol. 1, it is possible for
// close() to fail with EWOULDBLOCK under certain circumstances. What
// isn't clear is the state of the descriptor after this error. The one
// current OS where this behaviour is seen, Windows, says that the socket
// remains open. Therefore we'll put the descriptor back into blocking
// mode and have another attempt at closing it.
#if defined(__SYMBIAN32__)
int flags = ::fcntl(d, F_GETFL, 0);
if (flags >= 0)
::fcntl(d, F_SETFL, flags & ~O_NONBLOCK);
#else // defined(__SYMBIAN32__)
ioctl_arg_type arg = 0;
::ioctl(d, FIONBIO, &arg);
#endif // defined(__SYMBIAN32__)
state &= ~non_blocking;
errno = 0;
result = error_wrapper(::close(d), ec);
}
}
if (result == 0)
ec = boost::system::error_code();
return result;
}
bool set_user_non_blocking(int d, state_type& state,
bool value, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return false;
}
errno = 0;
#if defined(__SYMBIAN32__)
int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec);
if (result >= 0)
{
errno = 0;
int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
result = error_wrapper(::fcntl(d, F_SETFL, flag), ec);
}
#else // defined(__SYMBIAN32__)
ioctl_arg_type arg = (value ? 1 : 0);
int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec);
#endif // defined(__SYMBIAN32__)
if (result >= 0)
{
ec = boost::system::error_code();
if (value)
state |= user_set_non_blocking;
else
{
// Clearing the user-set non-blocking mode always overrides any
// internally-set non-blocking flag. Any subsequent asynchronous
// operations will need to re-enable non-blocking I/O.
state &= ~(user_set_non_blocking | internal_non_blocking);
}
return true;
}
return false;
}
bool set_internal_non_blocking(int d, state_type& state,
bool value, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return false;
}
if (!value && (state & user_set_non_blocking))
{
// It does not make sense to clear the internal non-blocking flag if the
// user still wants non-blocking behaviour. Return an error and let the
// caller figure out whether to update the user-set non-blocking flag.
ec = boost::asio::error::invalid_argument;
return false;
}
errno = 0;
#if defined(__SYMBIAN32__)
int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec);
if (result >= 0)
{
errno = 0;
int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
result = error_wrapper(::fcntl(d, F_SETFL, flag), ec);
}
#else // defined(__SYMBIAN32__)
ioctl_arg_type arg = (value ? 1 : 0);
int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec);
#endif // defined(__SYMBIAN32__)
if (result >= 0)
{
ec = boost::system::error_code();
if (value)
state |= internal_non_blocking;
else
state &= ~internal_non_blocking;
return true;
}
return false;
}
std::size_t sync_read(int d, state_type state, buf* bufs,
std::size_t count, bool all_empty, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return 0;
}
// A request to read 0 bytes on a stream is a no-op.
if (all_empty)
{
ec = boost::system::error_code();
return 0;
}
// Read some data.
for (;;)
{
// Try to complete the operation without blocking.
errno = 0;
int bytes = error_wrapper(::readv(d, bufs, static_cast<int>(count)), ec);
// Check if operation succeeded.
if (bytes > 0)
return bytes;
// Check for EOF.
if (bytes == 0)
{
ec = boost::asio::error::eof;
return 0;
}
// Operation failed.
if ((state & user_set_non_blocking)
|| (ec != boost::asio::error::would_block
&& ec != boost::asio::error::try_again))
return 0;
// Wait for descriptor to become ready.
if (descriptor_ops::poll_read(d, 0, ec) < 0)
return 0;
}
}
bool non_blocking_read(int d, buf* bufs, std::size_t count,
boost::system::error_code& ec, std::size_t& bytes_transferred)
{
for (;;)
{
// Read some data.
errno = 0;
int bytes = error_wrapper(::readv(d, bufs, static_cast<int>(count)), ec);
// Check for end of stream.
if (bytes == 0)
{
ec = boost::asio::error::eof;
return true;
}
// Retry operation if interrupted by signal.
if (ec == boost::asio::error::interrupted)
continue;
// Check if we need to run the operation again.
if (ec == boost::asio::error::would_block
|| ec == boost::asio::error::try_again)
return false;
// Operation is complete.
if (bytes > 0)
{
ec = boost::system::error_code();
bytes_transferred = bytes;
}
else
bytes_transferred = 0;
return true;
}
}
std::size_t sync_write(int d, state_type state, const buf* bufs,
std::size_t count, bool all_empty, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return 0;
}
// A request to write 0 bytes on a stream is a no-op.
if (all_empty)
{
ec = boost::system::error_code();
return 0;
}
// Write some data.
for (;;)
{
// Try to complete the operation without blocking.
errno = 0;
int bytes = error_wrapper(::writev(d, bufs, static_cast<int>(count)), ec);
// Check if operation succeeded.
if (bytes > 0)
return bytes;
// Operation failed.
if ((state & user_set_non_blocking)
|| (ec != boost::asio::error::would_block
&& ec != boost::asio::error::try_again))
return 0;
// Wait for descriptor to become ready.
if (descriptor_ops::poll_write(d, 0, ec) < 0)
return 0;
}
}
bool non_blocking_write(int d, const buf* bufs, std::size_t count,
boost::system::error_code& ec, std::size_t& bytes_transferred)
{
for (;;)
{
// Write some data.
errno = 0;
int bytes = error_wrapper(::writev(d, bufs, static_cast<int>(count)), ec);
// Retry operation if interrupted by signal.
if (ec == boost::asio::error::interrupted)
continue;
// Check if we need to run the operation again.
if (ec == boost::asio::error::would_block
|| ec == boost::asio::error::try_again)
return false;
// Operation is complete.
if (bytes >= 0)
{
ec = boost::system::error_code();
bytes_transferred = bytes;
}
else
bytes_transferred = 0;
return true;
}
}
int ioctl(int d, state_type& state, long cmd,
ioctl_arg_type* arg, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return -1;
}
errno = 0;
int result = error_wrapper(::ioctl(d, cmd, arg), ec);
if (result >= 0)
{
ec = boost::system::error_code();
// When updating the non-blocking mode we always perform the ioctl syscall,
// even if the flags would otherwise indicate that the descriptor is
// already in the correct state. This ensures that the underlying
// descriptor is put into the state that has been requested by the user. If
// the ioctl syscall was successful then we need to update the flags to
// match.
if (cmd == static_cast<long>(FIONBIO))
{
if (*arg)
{
state |= user_set_non_blocking;
}
else
{
// Clearing the non-blocking mode always overrides any internally-set
// non-blocking flag. Any subsequent asynchronous operations will need
// to re-enable non-blocking I/O.
state &= ~(user_set_non_blocking | internal_non_blocking);
}
}
}
return result;
}
int fcntl(int d, long cmd, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return -1;
}
errno = 0;
int result = error_wrapper(::fcntl(d, cmd), ec);
if (result != -1)
ec = boost::system::error_code();
return result;
}
int fcntl(int d, long cmd, long arg, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return -1;
}
errno = 0;
int result = error_wrapper(::fcntl(d, cmd, arg), ec);
if (result != -1)
ec = boost::system::error_code();
return result;
}
int poll_read(int d, state_type state, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return -1;
}
pollfd fds;
fds.fd = d;
fds.events = POLLIN;
fds.revents = 0;
int timeout = (state & user_set_non_blocking) ? 0 : -1;
errno = 0;
int result = error_wrapper(::poll(&fds, 1, timeout), ec);
if (result == 0)
ec = (state & user_set_non_blocking)
? boost::asio::error::would_block : boost::system::error_code();
else if (result > 0)
ec = boost::system::error_code();
return result;
}
int poll_write(int d, state_type state, boost::system::error_code& ec)
{
if (d == -1)
{
ec = boost::asio::error::bad_descriptor;
return -1;
}
pollfd fds;
fds.fd = d;
fds.events = POLLOUT;
fds.revents = 0;
int timeout = (state & user_set_non_blocking) ? 0 : -1;
errno = 0;
int result = error_wrapper(::poll(&fds, 1, timeout), ec);
if (result == 0)
ec = (state & user_set_non_blocking)
? boost::asio::error::would_block : boost::system::error_code();
else if (result > 0)
ec = boost::system::error_code();
return result;
}
} // namespace descriptor_ops
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP

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//
// detail/impl/dev_poll_reactor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_HPP
#define BOOST_ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_DEV_POLL)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Time_Traits>
void dev_poll_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
{
do_add_timer_queue(queue);
}
template <typename Time_Traits>
void dev_poll_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
{
do_remove_timer_queue(queue);
}
template <typename Time_Traits>
void dev_poll_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (shutdown_)
{
io_service_.post_immediate_completion(op);
return;
}
bool earliest = queue.enqueue_timer(time, timer, op);
io_service_.work_started();
if (earliest)
interrupter_.interrupt();
}
template <typename Time_Traits>
std::size_t dev_poll_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
op_queue<operation> ops;
std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
lock.unlock();
io_service_.post_deferred_completions(ops);
return n;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_DEV_POLL)
#endif // BOOST_ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_HPP

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//
// detail/impl/dev_poll_reactor.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_IPP
#define BOOST_ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_DEV_POLL)
#include <boost/assert.hpp>
#include <boost/asio/detail/dev_poll_reactor.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
dev_poll_reactor::dev_poll_reactor(boost::asio::io_service& io_service)
: boost::asio::detail::service_base<dev_poll_reactor>(io_service),
io_service_(use_service<io_service_impl>(io_service)),
mutex_(),
dev_poll_fd_(do_dev_poll_create()),
interrupter_(),
shutdown_(false)
{
// Add the interrupter's descriptor to /dev/poll.
::pollfd ev = { 0, 0, 0 };
ev.fd = interrupter_.read_descriptor();
ev.events = POLLIN | POLLERR;
ev.revents = 0;
::write(dev_poll_fd_, &ev, sizeof(ev));
}
dev_poll_reactor::~dev_poll_reactor()
{
shutdown_service();
::close(dev_poll_fd_);
}
void dev_poll_reactor::shutdown_service()
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
shutdown_ = true;
lock.unlock();
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
op_queue_[i].get_all_operations(ops);
timer_queues_.get_all_timers(ops);
io_service_.abandon_operations(ops);
}
// Helper class to re-register all descriptors with /dev/poll.
class dev_poll_reactor::fork_helper
{
public:
fork_helper(dev_poll_reactor* reactor, short events)
: reactor_(reactor), events_(events)
{
}
bool set(int descriptor)
{
::pollfd& ev = reactor_->add_pending_event_change(descriptor);
ev.events = events_;
return true;
}
private:
dev_poll_reactor* reactor_;
short events_;
};
void dev_poll_reactor::fork_service(boost::asio::io_service::fork_event fork_ev)
{
if (fork_ev == boost::asio::io_service::fork_child)
{
detail::mutex::scoped_lock lock(mutex_);
if (dev_poll_fd_ != -1)
::close(dev_poll_fd_);
dev_poll_fd_ = -1;
dev_poll_fd_ = do_dev_poll_create();
interrupter_.recreate();
// Add the interrupter's descriptor to /dev/poll.
::pollfd ev = { 0, 0, 0 };
ev.fd = interrupter_.read_descriptor();
ev.events = POLLIN | POLLERR;
ev.revents = 0;
::write(dev_poll_fd_, &ev, sizeof(ev));
// Re-register all descriptors with /dev/poll. The changes will be written
// to the /dev/poll descriptor the next time the reactor is run.
op_queue<operation> ops;
fork_helper read_op_helper(this, POLLERR | POLLHUP | POLLIN);
op_queue_[read_op].get_descriptors(read_op_helper, ops);
fork_helper write_op_helper(this, POLLERR | POLLHUP | POLLOUT);
op_queue_[write_op].get_descriptors(write_op_helper, ops);
fork_helper except_op_helper(this, POLLERR | POLLHUP | POLLPRI);
op_queue_[except_op].get_descriptors(except_op_helper, ops);
interrupter_.interrupt();
// The ops op_queue will always be empty because the fork_helper's set()
// member function never returns false.
BOOST_ASSERT(ops.empty());
}
}
void dev_poll_reactor::init_task()
{
io_service_.init_task();
}
int dev_poll_reactor::register_descriptor(socket_type, per_descriptor_data&)
{
return 0;
}
int dev_poll_reactor::register_internal_descriptor(int op_type,
socket_type descriptor, per_descriptor_data&, reactor_op* op)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
op_queue_[op_type].enqueue_operation(descriptor, op);
::pollfd& ev = add_pending_event_change(descriptor);
ev.events = POLLERR | POLLHUP;
switch (op_type)
{
case read_op: ev.events |= POLLIN; break;
case write_op: ev.events |= POLLOUT; break;
case except_op: ev.events |= POLLPRI; break;
default: break;
}
interrupter_.interrupt();
return 0;
}
void dev_poll_reactor::move_descriptor(socket_type,
dev_poll_reactor::per_descriptor_data&,
dev_poll_reactor::per_descriptor_data&)
{
}
void dev_poll_reactor::start_op(int op_type, socket_type descriptor,
dev_poll_reactor::per_descriptor_data&,
reactor_op* op, bool allow_speculative)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (shutdown_)
{
post_immediate_completion(op);
return;
}
if (allow_speculative)
{
if (op_type != read_op || !op_queue_[except_op].has_operation(descriptor))
{
if (!op_queue_[op_type].has_operation(descriptor))
{
if (op->perform())
{
lock.unlock();
io_service_.post_immediate_completion(op);
return;
}
}
}
}
bool first = op_queue_[op_type].enqueue_operation(descriptor, op);
io_service_.work_started();
if (first)
{
::pollfd& ev = add_pending_event_change(descriptor);
ev.events = POLLERR | POLLHUP;
if (op_type == read_op
|| op_queue_[read_op].has_operation(descriptor))
ev.events |= POLLIN;
if (op_type == write_op
|| op_queue_[write_op].has_operation(descriptor))
ev.events |= POLLOUT;
if (op_type == except_op
|| op_queue_[except_op].has_operation(descriptor))
ev.events |= POLLPRI;
interrupter_.interrupt();
}
}
void dev_poll_reactor::cancel_ops(socket_type descriptor,
dev_poll_reactor::per_descriptor_data&)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted);
}
void dev_poll_reactor::deregister_descriptor(socket_type descriptor,
dev_poll_reactor::per_descriptor_data&, bool)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
// Remove the descriptor from /dev/poll.
::pollfd& ev = add_pending_event_change(descriptor);
ev.events = POLLREMOVE;
interrupter_.interrupt();
// Cancel any outstanding operations associated with the descriptor.
cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted);
}
void dev_poll_reactor::deregister_internal_descriptor(
socket_type descriptor, dev_poll_reactor::per_descriptor_data&)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
// Remove the descriptor from /dev/poll. Since this function is only called
// during a fork, we can apply the change immediately.
::pollfd ev = { 0, 0, 0 };
ev.fd = descriptor;
ev.events = POLLREMOVE;
ev.revents = 0;
::write(dev_poll_fd_, &ev, sizeof(ev));
// Destroy all operations associated with the descriptor.
op_queue<operation> ops;
boost::system::error_code ec;
for (int i = 0; i < max_ops; ++i)
op_queue_[i].cancel_operations(descriptor, ops, ec);
}
void dev_poll_reactor::run(bool block, op_queue<operation>& ops)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
// We can return immediately if there's no work to do and the reactor is
// not supposed to block.
if (!block && op_queue_[read_op].empty() && op_queue_[write_op].empty()
&& op_queue_[except_op].empty() && timer_queues_.all_empty())
return;
// Write the pending event registration changes to the /dev/poll descriptor.
std::size_t events_size = sizeof(::pollfd) * pending_event_changes_.size();
if (events_size > 0)
{
errno = 0;
int result = ::write(dev_poll_fd_,
&pending_event_changes_[0], events_size);
if (result != static_cast<int>(events_size))
{
boost::system::error_code ec = boost::system::error_code(
errno, boost::asio::error::get_system_category());
for (std::size_t i = 0; i < pending_event_changes_.size(); ++i)
{
int descriptor = pending_event_changes_[i].fd;
for (int j = 0; j < max_ops; ++j)
op_queue_[j].cancel_operations(descriptor, ops, ec);
}
}
pending_event_changes_.clear();
pending_event_change_index_.clear();
}
int timeout = block ? get_timeout() : 0;
lock.unlock();
// Block on the /dev/poll descriptor.
::pollfd events[128] = { { 0, 0, 0 } };
::dvpoll dp = { 0, 0, 0 };
dp.dp_fds = events;
dp.dp_nfds = 128;
dp.dp_timeout = timeout;
int num_events = ::ioctl(dev_poll_fd_, DP_POLL, &dp);
lock.lock();
// Dispatch the waiting events.
for (int i = 0; i < num_events; ++i)
{
int descriptor = events[i].fd;
if (descriptor == interrupter_.read_descriptor())
{
interrupter_.reset();
}
else
{
bool more_reads = false;
bool more_writes = false;
bool more_except = false;
// Exception operations must be processed first to ensure that any
// out-of-band data is read before normal data.
if (events[i].events & (POLLPRI | POLLERR | POLLHUP))
more_except =
op_queue_[except_op].perform_operations(descriptor, ops);
else
more_except = op_queue_[except_op].has_operation(descriptor);
if (events[i].events & (POLLIN | POLLERR | POLLHUP))
more_reads = op_queue_[read_op].perform_operations(descriptor, ops);
else
more_reads = op_queue_[read_op].has_operation(descriptor);
if (events[i].events & (POLLOUT | POLLERR | POLLHUP))
more_writes = op_queue_[write_op].perform_operations(descriptor, ops);
else
more_writes = op_queue_[write_op].has_operation(descriptor);
if ((events[i].events & (POLLERR | POLLHUP)) != 0
&& !more_except && !more_reads && !more_writes)
{
// If we have an event and no operations associated with the
// descriptor then we need to delete the descriptor from /dev/poll.
// The poll operation can produce POLLHUP or POLLERR events when there
// is no operation pending, so if we do not remove the descriptor we
// can end up in a tight polling loop.
::pollfd ev = { 0, 0, 0 };
ev.fd = descriptor;
ev.events = POLLREMOVE;
ev.revents = 0;
::write(dev_poll_fd_, &ev, sizeof(ev));
}
else
{
::pollfd ev = { 0, 0, 0 };
ev.fd = descriptor;
ev.events = POLLERR | POLLHUP;
if (more_reads)
ev.events |= POLLIN;
if (more_writes)
ev.events |= POLLOUT;
if (more_except)
ev.events |= POLLPRI;
ev.revents = 0;
int result = ::write(dev_poll_fd_, &ev, sizeof(ev));
if (result != sizeof(ev))
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
for (int j = 0; j < max_ops; ++j)
op_queue_[j].cancel_operations(descriptor, ops, ec);
}
}
}
}
timer_queues_.get_ready_timers(ops);
}
void dev_poll_reactor::interrupt()
{
interrupter_.interrupt();
}
int dev_poll_reactor::do_dev_poll_create()
{
int fd = ::open("/dev/poll", O_RDWR);
if (fd == -1)
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "/dev/poll");
}
return fd;
}
void dev_poll_reactor::do_add_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.insert(&queue);
}
void dev_poll_reactor::do_remove_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.erase(&queue);
}
int dev_poll_reactor::get_timeout()
{
// By default we will wait no longer than 5 minutes. This will ensure that
// any changes to the system clock are detected after no longer than this.
return timer_queues_.wait_duration_msec(5 * 60 * 1000);
}
void dev_poll_reactor::cancel_ops_unlocked(socket_type descriptor,
const boost::system::error_code& ec)
{
bool need_interrupt = false;
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
need_interrupt = op_queue_[i].cancel_operations(
descriptor, ops, ec) || need_interrupt;
io_service_.post_deferred_completions(ops);
if (need_interrupt)
interrupter_.interrupt();
}
::pollfd& dev_poll_reactor::add_pending_event_change(int descriptor)
{
hash_map<int, std::size_t>::iterator iter
= pending_event_change_index_.find(descriptor);
if (iter == pending_event_change_index_.end())
{
std::size_t index = pending_event_changes_.size();
pending_event_changes_.reserve(pending_event_changes_.size() + 1);
pending_event_change_index_.insert(std::make_pair(descriptor, index));
pending_event_changes_.push_back(::pollfd());
pending_event_changes_[index].fd = descriptor;
pending_event_changes_[index].revents = 0;
return pending_event_changes_[index];
}
else
{
return pending_event_changes_[iter->second];
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_DEV_POLL)
#endif // BOOST_ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_IPP

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//
// detail/impl/epoll_reactor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP
#define BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#if defined(BOOST_ASIO_HAS_EPOLL)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Time_Traits>
void epoll_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
{
do_add_timer_queue(queue);
}
template <typename Time_Traits>
void epoll_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
{
do_remove_timer_queue(queue);
}
template <typename Time_Traits>
void epoll_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op)
{
mutex::scoped_lock lock(mutex_);
if (shutdown_)
{
io_service_.post_immediate_completion(op);
return;
}
bool earliest = queue.enqueue_timer(time, timer, op);
io_service_.work_started();
if (earliest)
update_timeout();
}
template <typename Time_Traits>
std::size_t epoll_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled)
{
mutex::scoped_lock lock(mutex_);
op_queue<operation> ops;
std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
lock.unlock();
io_service_.post_deferred_completions(ops);
return n;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_EPOLL)
#endif // BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP

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//
// detail/impl/epoll_reactor.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP
#define BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_EPOLL)
#include <cstddef>
#include <sys/epoll.h>
#include <boost/asio/detail/epoll_reactor.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#if defined(BOOST_ASIO_HAS_TIMERFD)
# include <sys/timerfd.h>
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
epoll_reactor::epoll_reactor(boost::asio::io_service& io_service)
: boost::asio::detail::service_base<epoll_reactor>(io_service),
io_service_(use_service<io_service_impl>(io_service)),
mutex_(),
interrupter_(),
epoll_fd_(do_epoll_create()),
timer_fd_(do_timerfd_create()),
shutdown_(false)
{
// Add the interrupter's descriptor to epoll.
epoll_event ev = { 0, { 0 } };
ev.events = EPOLLIN | EPOLLERR | EPOLLET;
ev.data.ptr = &interrupter_;
epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(), &ev);
interrupter_.interrupt();
// Add the timer descriptor to epoll.
if (timer_fd_ != -1)
{
ev.events = EPOLLIN | EPOLLERR;
ev.data.ptr = &timer_fd_;
epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev);
}
}
epoll_reactor::~epoll_reactor()
{
if (epoll_fd_ != -1)
close(epoll_fd_);
if (timer_fd_ != -1)
close(timer_fd_);
}
void epoll_reactor::shutdown_service()
{
mutex::scoped_lock lock(mutex_);
shutdown_ = true;
lock.unlock();
op_queue<operation> ops;
while (descriptor_state* state = registered_descriptors_.first())
{
for (int i = 0; i < max_ops; ++i)
ops.push(state->op_queue_[i]);
state->shutdown_ = true;
registered_descriptors_.free(state);
}
timer_queues_.get_all_timers(ops);
io_service_.abandon_operations(ops);
}
void epoll_reactor::fork_service(boost::asio::io_service::fork_event fork_ev)
{
if (fork_ev == boost::asio::io_service::fork_child)
{
if (epoll_fd_ != -1)
::close(epoll_fd_);
epoll_fd_ = -1;
epoll_fd_ = do_epoll_create();
if (timer_fd_ != -1)
::close(timer_fd_);
timer_fd_ = -1;
timer_fd_ = do_timerfd_create();
interrupter_.recreate();
// Add the interrupter's descriptor to epoll.
epoll_event ev = { 0, { 0 } };
ev.events = EPOLLIN | EPOLLERR | EPOLLET;
ev.data.ptr = &interrupter_;
epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(), &ev);
interrupter_.interrupt();
// Add the timer descriptor to epoll.
if (timer_fd_ != -1)
{
ev.events = EPOLLIN | EPOLLERR;
ev.data.ptr = &timer_fd_;
epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev);
}
update_timeout();
// Re-register all descriptors with epoll.
mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
for (descriptor_state* state = registered_descriptors_.first();
state != 0; state = state->next_)
{
ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLOUT | EPOLLPRI | EPOLLET;
ev.data.ptr = state;
int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, state->descriptor_, &ev);
if (result != 0)
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "epoll re-registration");
}
}
}
}
void epoll_reactor::init_task()
{
io_service_.init_task();
}
int epoll_reactor::register_descriptor(socket_type descriptor,
epoll_reactor::per_descriptor_data& descriptor_data)
{
descriptor_data = allocate_descriptor_state();
{
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
descriptor_data->reactor_ = this;
descriptor_data->descriptor_ = descriptor;
descriptor_data->shutdown_ = false;
for (int i = 0; i < max_ops; ++i)
descriptor_data->op_queue_is_empty_[i] =
descriptor_data->op_queue_[i].empty();
}
epoll_event ev = { 0, { 0 } };
ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLOUT | EPOLLPRI | EPOLLET;
ev.data.ptr = descriptor_data;
int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev);
if (result != 0)
return errno;
return 0;
}
int epoll_reactor::register_internal_descriptor(
int op_type, socket_type descriptor,
epoll_reactor::per_descriptor_data& descriptor_data, reactor_op* op)
{
descriptor_data = allocate_descriptor_state();
{
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
descriptor_data->reactor_ = this;
descriptor_data->descriptor_ = descriptor;
descriptor_data->shutdown_ = false;
descriptor_data->op_queue_[op_type].push(op);
for (int i = 0; i < max_ops; ++i)
descriptor_data->op_queue_is_empty_[i] =
descriptor_data->op_queue_[i].empty();
}
epoll_event ev = { 0, { 0 } };
ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLOUT | EPOLLPRI | EPOLLET;
ev.data.ptr = descriptor_data;
int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev);
if (result != 0)
return errno;
return 0;
}
void epoll_reactor::move_descriptor(socket_type,
epoll_reactor::per_descriptor_data& target_descriptor_data,
epoll_reactor::per_descriptor_data& source_descriptor_data)
{
target_descriptor_data = source_descriptor_data;
source_descriptor_data = 0;
}
void epoll_reactor::start_op(int op_type, socket_type descriptor,
epoll_reactor::per_descriptor_data& descriptor_data,
reactor_op* op, bool allow_speculative)
{
if (!descriptor_data)
{
op->ec_ = boost::asio::error::bad_descriptor;
post_immediate_completion(op);
return;
}
bool perform_speculative = allow_speculative;
if (perform_speculative)
{
if (descriptor_data->op_queue_is_empty_[op_type]
&& (op_type != read_op
|| descriptor_data->op_queue_is_empty_[except_op]))
{
if (op->perform())
{
io_service_.post_immediate_completion(op);
return;
}
perform_speculative = false;
}
}
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
if (descriptor_data->shutdown_)
{
post_immediate_completion(op);
return;
}
for (int i = 0; i < max_ops; ++i)
descriptor_data->op_queue_is_empty_[i] =
descriptor_data->op_queue_[i].empty();
if (descriptor_data->op_queue_is_empty_[op_type])
{
if (allow_speculative)
{
if (perform_speculative
&& (op_type != read_op
|| descriptor_data->op_queue_is_empty_[except_op]))
{
if (op->perform())
{
descriptor_lock.unlock();
io_service_.post_immediate_completion(op);
return;
}
}
}
else
{
epoll_event ev = { 0, { 0 } };
ev.events = EPOLLIN | EPOLLERR | EPOLLHUP
| EPOLLOUT | EPOLLPRI | EPOLLET;
ev.data.ptr = descriptor_data;
epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, descriptor, &ev);
}
}
descriptor_data->op_queue_[op_type].push(op);
descriptor_data->op_queue_is_empty_[op_type] = false;
io_service_.work_started();
}
void epoll_reactor::cancel_ops(socket_type,
epoll_reactor::per_descriptor_data& descriptor_data)
{
if (!descriptor_data)
return;
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
{
while (reactor_op* op = descriptor_data->op_queue_[i].front())
{
op->ec_ = boost::asio::error::operation_aborted;
descriptor_data->op_queue_[i].pop();
ops.push(op);
}
}
descriptor_lock.unlock();
io_service_.post_deferred_completions(ops);
}
void epoll_reactor::deregister_descriptor(socket_type descriptor,
epoll_reactor::per_descriptor_data& descriptor_data, bool closing)
{
if (!descriptor_data)
return;
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
if (!descriptor_data->shutdown_)
{
if (closing)
{
// The descriptor will be automatically removed from the epoll set when
// it is closed.
}
else
{
epoll_event ev = { 0, { 0 } };
epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev);
}
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
{
while (reactor_op* op = descriptor_data->op_queue_[i].front())
{
op->ec_ = boost::asio::error::operation_aborted;
descriptor_data->op_queue_[i].pop();
ops.push(op);
}
}
descriptor_data->descriptor_ = -1;
descriptor_data->shutdown_ = true;
descriptor_lock.unlock();
free_descriptor_state(descriptor_data);
descriptor_data = 0;
io_service_.post_deferred_completions(ops);
}
}
void epoll_reactor::deregister_internal_descriptor(socket_type descriptor,
epoll_reactor::per_descriptor_data& descriptor_data)
{
if (!descriptor_data)
return;
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
if (!descriptor_data->shutdown_)
{
epoll_event ev = { 0, { 0 } };
epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev);
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
ops.push(descriptor_data->op_queue_[i]);
descriptor_data->descriptor_ = -1;
descriptor_data->shutdown_ = true;
descriptor_lock.unlock();
free_descriptor_state(descriptor_data);
descriptor_data = 0;
}
}
void epoll_reactor::run(bool block, op_queue<operation>& ops)
{
// This code relies on the fact that the task_io_service queues the reactor
// task behind all descriptor operations generated by this function. This
// means, that by the time we reach this point, any previously returned
// descriptor operations have already been dequeued. Therefore it is now safe
// for us to reuse and return them for the task_io_service to queue again.
// Calculate a timeout only if timerfd is not used.
int timeout;
if (timer_fd_ != -1)
timeout = block ? -1 : 0;
else
{
mutex::scoped_lock lock(mutex_);
timeout = block ? get_timeout() : 0;
}
// Block on the epoll descriptor.
epoll_event events[128];
int num_events = epoll_wait(epoll_fd_, events, 128, timeout);
#if defined(BOOST_ASIO_HAS_TIMERFD)
bool check_timers = (timer_fd_ == -1);
#else // defined(BOOST_ASIO_HAS_TIMERFD)
bool check_timers = true;
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
// Dispatch the waiting events.
for (int i = 0; i < num_events; ++i)
{
void* ptr = events[i].data.ptr;
if (ptr == &interrupter_)
{
// No need to reset the interrupter since we're leaving the descriptor
// in a ready-to-read state and relying on edge-triggered notifications
// to make it so that we only get woken up when the descriptor's epoll
// registration is updated.
#if defined(BOOST_ASIO_HAS_TIMERFD)
if (timer_fd_ == -1)
check_timers = true;
#else // defined(BOOST_ASIO_HAS_TIMERFD)
check_timers = true;
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
}
#if defined(BOOST_ASIO_HAS_TIMERFD)
else if (ptr == &timer_fd_)
{
check_timers = true;
}
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
else
{
// The descriptor operation doesn't count as work in and of itself, so we
// don't call work_started() here. This still allows the io_service to
// stop if the only remaining operations are descriptor operations.
descriptor_state* descriptor_data = static_cast<descriptor_state*>(ptr);
descriptor_data->set_ready_events(events[i].events);
ops.push(descriptor_data);
}
}
if (check_timers)
{
mutex::scoped_lock common_lock(mutex_);
timer_queues_.get_ready_timers(ops);
#if defined(BOOST_ASIO_HAS_TIMERFD)
if (timer_fd_ != -1)
{
itimerspec new_timeout;
itimerspec old_timeout;
int flags = get_timeout(new_timeout);
timerfd_settime(timer_fd_, flags, &new_timeout, &old_timeout);
}
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
}
}
void epoll_reactor::interrupt()
{
epoll_event ev = { 0, { 0 } };
ev.events = EPOLLIN | EPOLLERR | EPOLLET;
ev.data.ptr = &interrupter_;
epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, interrupter_.read_descriptor(), &ev);
}
int epoll_reactor::do_epoll_create()
{
#if defined(EPOLL_CLOEXEC)
int fd = epoll_create1(EPOLL_CLOEXEC);
#else // defined(EPOLL_CLOEXEC)
int fd = -1;
errno = EINVAL;
#endif // defined(EPOLL_CLOEXEC)
if (fd == -1 && errno == EINVAL)
{
fd = epoll_create(epoll_size);
if (fd != -1)
::fcntl(fd, F_SETFD, FD_CLOEXEC);
}
if (fd == -1)
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "epoll");
}
return fd;
}
int epoll_reactor::do_timerfd_create()
{
#if defined(BOOST_ASIO_HAS_TIMERFD)
# if defined(TFD_CLOEXEC)
int fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
# else // defined(TFD_CLOEXEC)
int fd = -1;
errno = EINVAL;
# endif // defined(TFD_CLOEXEC)
if (fd == -1 && errno == EINVAL)
{
fd = timerfd_create(CLOCK_MONOTONIC, 0);
if (fd != -1)
::fcntl(fd, F_SETFD, FD_CLOEXEC);
}
return fd;
#else // defined(BOOST_ASIO_HAS_TIMERFD)
return -1;
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
}
epoll_reactor::descriptor_state* epoll_reactor::allocate_descriptor_state()
{
mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
return registered_descriptors_.alloc();
}
void epoll_reactor::free_descriptor_state(epoll_reactor::descriptor_state* s)
{
mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
registered_descriptors_.free(s);
}
void epoll_reactor::do_add_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.insert(&queue);
}
void epoll_reactor::do_remove_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.erase(&queue);
}
void epoll_reactor::update_timeout()
{
#if defined(BOOST_ASIO_HAS_TIMERFD)
if (timer_fd_ != -1)
{
itimerspec new_timeout;
itimerspec old_timeout;
int flags = get_timeout(new_timeout);
timerfd_settime(timer_fd_, flags, &new_timeout, &old_timeout);
return;
}
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
interrupt();
}
int epoll_reactor::get_timeout()
{
// By default we will wait no longer than 5 minutes. This will ensure that
// any changes to the system clock are detected after no longer than this.
return timer_queues_.wait_duration_msec(5 * 60 * 1000);
}
#if defined(BOOST_ASIO_HAS_TIMERFD)
int epoll_reactor::get_timeout(itimerspec& ts)
{
ts.it_interval.tv_sec = 0;
ts.it_interval.tv_nsec = 0;
long usec = timer_queues_.wait_duration_usec(5 * 60 * 1000 * 1000);
ts.it_value.tv_sec = usec / 1000000;
ts.it_value.tv_nsec = usec ? (usec % 1000000) * 1000 : 1;
return usec ? 0 : TFD_TIMER_ABSTIME;
}
#endif // defined(BOOST_ASIO_HAS_TIMERFD)
struct epoll_reactor::perform_io_cleanup_on_block_exit
{
explicit perform_io_cleanup_on_block_exit(epoll_reactor* r)
: reactor_(r), first_op_(0)
{
}
~perform_io_cleanup_on_block_exit()
{
if (first_op_)
{
// Post the remaining completed operations for invocation.
if (!ops_.empty())
reactor_->io_service_.post_deferred_completions(ops_);
// A user-initiated operation has completed, but there's no need to
// explicitly call work_finished() here. Instead, we'll take advantage of
// the fact that the task_io_service will call work_finished() once we
// return.
}
else
{
// No user-initiated operations have completed, so we need to compensate
// for the work_finished() call that the task_io_service will make once
// this operation returns.
reactor_->io_service_.work_started();
}
}
epoll_reactor* reactor_;
op_queue<operation> ops_;
operation* first_op_;
};
epoll_reactor::descriptor_state::descriptor_state()
: operation(&epoll_reactor::descriptor_state::do_complete)
{
}
operation* epoll_reactor::descriptor_state::perform_io(uint32_t events)
{
perform_io_cleanup_on_block_exit io_cleanup(reactor_);
mutex::scoped_lock descriptor_lock(mutex_);
// Exception operations must be processed first to ensure that any
// out-of-band data is read before normal data.
static const int flag[max_ops] = { EPOLLIN, EPOLLOUT, EPOLLPRI };
for (int j = max_ops - 1; j >= 0; --j)
{
if (events & (flag[j] | EPOLLERR | EPOLLHUP))
{
while (reactor_op* op = op_queue_[j].front())
{
if (op->perform())
{
op_queue_[j].pop();
io_cleanup.ops_.push(op);
}
else
break;
}
}
}
// The first operation will be returned for completion now. The others will
// be posted for later by the io_cleanup object's destructor.
io_cleanup.first_op_ = io_cleanup.ops_.front();
io_cleanup.ops_.pop();
return io_cleanup.first_op_;
}
void epoll_reactor::descriptor_state::do_complete(
io_service_impl* owner, operation* base,
const boost::system::error_code& ec, std::size_t bytes_transferred)
{
if (owner)
{
descriptor_state* descriptor_data = static_cast<descriptor_state*>(base);
uint32_t events = static_cast<uint32_t>(bytes_transferred);
if (operation* op = descriptor_data->perform_io(events))
{
op->complete(*owner, ec, 0);
}
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_EPOLL)
#endif // BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP

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//
// detail/impl/eventfd_select_interrupter.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2008 Roelof Naude (roelof.naude at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_EVENTFD_SELECT_INTERRUPTER_IPP
#define BOOST_ASIO_DETAIL_IMPL_EVENTFD_SELECT_INTERRUPTER_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_EVENTFD)
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
# include <asm/unistd.h>
#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
# include <sys/eventfd.h>
#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
#include <boost/asio/detail/eventfd_select_interrupter.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
eventfd_select_interrupter::eventfd_select_interrupter()
{
open_descriptors();
}
void eventfd_select_interrupter::open_descriptors()
{
#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
write_descriptor_ = read_descriptor_ = syscall(__NR_eventfd, 0);
if (read_descriptor_ != -1)
{
::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
}
#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
# if defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK)
write_descriptor_ = read_descriptor_ =
::eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK);
# else // defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK)
errno = EINVAL;
write_descriptor_ = read_descriptor_ = -1;
# endif // defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK)
if (read_descriptor_ == -1 && errno == EINVAL)
{
write_descriptor_ = read_descriptor_ = ::eventfd(0, 0);
if (read_descriptor_ != -1)
{
::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
}
}
#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
if (read_descriptor_ == -1)
{
int pipe_fds[2];
if (pipe(pipe_fds) == 0)
{
read_descriptor_ = pipe_fds[0];
::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
write_descriptor_ = pipe_fds[1];
::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK);
::fcntl(write_descriptor_, F_SETFD, FD_CLOEXEC);
}
else
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "eventfd_select_interrupter");
}
}
}
eventfd_select_interrupter::~eventfd_select_interrupter()
{
close_descriptors();
}
void eventfd_select_interrupter::close_descriptors()
{
if (write_descriptor_ != -1 && write_descriptor_ != read_descriptor_)
::close(write_descriptor_);
if (read_descriptor_ != -1)
::close(read_descriptor_);
}
void eventfd_select_interrupter::recreate()
{
close_descriptors();
write_descriptor_ = -1;
read_descriptor_ = -1;
open_descriptors();
}
void eventfd_select_interrupter::interrupt()
{
uint64_t counter(1UL);
int result = ::write(write_descriptor_, &counter, sizeof(uint64_t));
(void)result;
}
bool eventfd_select_interrupter::reset()
{
if (write_descriptor_ == read_descriptor_)
{
for (;;)
{
// Only perform one read. The kernel maintains an atomic counter.
uint64_t counter(0);
errno = 0;
int bytes_read = ::read(read_descriptor_, &counter, sizeof(uint64_t));
if (bytes_read < 0 && errno == EINTR)
continue;
bool was_interrupted = (bytes_read > 0);
return was_interrupted;
}
}
else
{
for (;;)
{
// Clear all data from the pipe.
char data[1024];
int bytes_read = ::read(read_descriptor_, data, sizeof(data));
if (bytes_read < 0 && errno == EINTR)
continue;
bool was_interrupted = (bytes_read > 0);
while (bytes_read == sizeof(data))
bytes_read = ::read(read_descriptor_, data, sizeof(data));
return was_interrupted;
}
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_EVENTFD)
#endif // BOOST_ASIO_DETAIL_IMPL_EVENTFD_SELECT_INTERRUPTER_IPP

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//
// detail/impl/handler_tracking.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
#define BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
#include <cstdarg>
#include <cstdio>
#include <boost/asio/detail/handler_tracking.hpp>
#include <boost/asio/detail/push_options.hpp>
#include <boost/date_time/posix_time/posix_time_types.hpp>
#include <boost/asio/detail/pop_options.hpp>
#if !defined(BOOST_WINDOWS)
# include <unistd.h>
#endif // !defined(BOOST_WINDOWS)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct handler_tracking::tracking_state
{
static_mutex mutex_;
boost::uint64_t next_id_;
tss_ptr<completion>* current_completion_;
};
handler_tracking::tracking_state* handler_tracking::get_state()
{
static tracking_state state = { BOOST_ASIO_STATIC_MUTEX_INIT, 1, 0 };
return &state;
}
void handler_tracking::init()
{
static tracking_state* state = get_state();
state->mutex_.init();
static_mutex::scoped_lock lock(state->mutex_);
if (state->current_completion_ == 0)
state->current_completion_ = new tss_ptr<completion>;
}
void handler_tracking::creation(handler_tracking::tracked_handler* h,
const char* object_type, void* object, const char* op_name)
{
static tracking_state* state = get_state();
static_mutex::scoped_lock lock(state->mutex_);
h->id_ = state->next_id_++;
lock.unlock();
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
boost::uint64_t current_id = 0;
if (completion* current_completion = *state->current_completion_)
current_id = current_completion->id_;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|%I64u*%I64u|%.20s@%p.%.50s\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|%llu*%llu|%.20s@%p.%.50s\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000),
current_id, h->id_, object_type, object, op_name);
}
handler_tracking::completion::completion(handler_tracking::tracked_handler* h)
: id_(h->id_),
invoked_(false),
next_(*get_state()->current_completion_)
{
*get_state()->current_completion_ = this;
}
handler_tracking::completion::~completion()
{
if (id_)
{
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|%c%I64u|\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|%c%llu|\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000),
invoked_ ? '!' : '~', id_);
}
*get_state()->current_completion_ = next_;
}
void handler_tracking::completion::invocation_begin()
{
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|>%llu|\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), id_);
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec)
{
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000),
id_, ec.category().name(), ec.value());
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec, std::size_t bytes_transferred)
{
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,bytes_transferred=%I64u\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d,bytes_transferred=%llu\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000),
id_, ec.category().name(), ec.value(),
static_cast<boost::uint64_t>(bytes_transferred));
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec, int signal_number)
{
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,signal_number=%d\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d,signal_number=%d\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000),
id_, ec.category().name(), ec.value(), signal_number);
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec, const char* arg)
{
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,%.50s\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d,%.50s\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000),
id_, ec.category().name(), ec.value(), arg);
invoked_ = true;
}
void handler_tracking::completion::invocation_end()
{
if (id_)
{
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|<%I64u|\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|<%llu|\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), id_);
id_ = 0;
}
}
void handler_tracking::operation(const char* object_type,
void* object, const char* op_name)
{
static tracking_state* state = get_state();
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
unsigned long long current_id = 0;
if (completion* current_completion = *state->current_completion_)
current_id = current_completion->id_;
write_line(
#if defined(BOOST_WINDOWS)
"@asio|%I64u.%06I64u|%I64u|%.20s@%p.%.50s\n",
#else // defined(BOOST_WINDOWS)
"@asio|%llu.%06llu|%llu|%.20s@%p.%.50s\n",
#endif // defined(BOOST_WINDOWS)
static_cast<boost::uint64_t>(now.total_seconds()),
static_cast<boost::uint64_t>(now.total_microseconds() % 1000000),
current_id, object_type, object, op_name);
}
void handler_tracking::write_line(const char* format, ...)
{
using namespace std; // For sprintf (or equivalent).
va_list args;
va_start(args, format);
char line[256] = "";
#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
int length = vsprintf_s(line, sizeof(line), format, args);
#else // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
int length = vsprintf(line, format, args);
#endif // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
va_end(args);
#if defined(BOOST_WINDOWS)
HANDLE stderr_handle = ::GetStdHandle(STD_ERROR_HANDLE);
DWORD bytes_written = 0;
::WriteFile(stderr_handle, line, length, &bytes_written, 0);
#else // defined(BOOST_WINDOWS)
::write(STDERR_FILENO, line, length);
#endif // defined(BOOST_WINDOWS)
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
#endif // BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP

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//
// detail/impl/kqueue_reactor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_KQUEUE_REACTOR_HPP
#define BOOST_ASIO_DETAIL_IMPL_KQUEUE_REACTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_KQUEUE)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Time_Traits>
void kqueue_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
{
do_add_timer_queue(queue);
}
// Remove a timer queue from the reactor.
template <typename Time_Traits>
void kqueue_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
{
do_remove_timer_queue(queue);
}
template <typename Time_Traits>
void kqueue_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (shutdown_)
{
io_service_.post_immediate_completion(op);
return;
}
bool earliest = queue.enqueue_timer(time, timer, op);
io_service_.work_started();
if (earliest)
interrupt();
}
template <typename Time_Traits>
std::size_t kqueue_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
op_queue<operation> ops;
std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
lock.unlock();
io_service_.post_deferred_completions(ops);
return n;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_KQUEUE)
#endif // BOOST_ASIO_DETAIL_IMPL_KQUEUE_REACTOR_HPP

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//
// detail/impl/kqueue_reactor.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP
#define BOOST_ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_KQUEUE)
#include <boost/asio/detail/kqueue_reactor.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
#if defined(__NetBSD__)
# define BOOST_ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \
EV_SET(ev, ident, filt, flags, fflags, \
data, reinterpret_cast<intptr_t>(udata))
#else
# define BOOST_ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \
EV_SET(ev, ident, filt, flags, fflags, data, udata)
#endif
namespace boost {
namespace asio {
namespace detail {
kqueue_reactor::kqueue_reactor(boost::asio::io_service& io_service)
: boost::asio::detail::service_base<kqueue_reactor>(io_service),
io_service_(use_service<io_service_impl>(io_service)),
mutex_(),
kqueue_fd_(do_kqueue_create()),
interrupter_(),
shutdown_(false)
{
// The interrupter is put into a permanently readable state. Whenever we want
// to interrupt the blocked kevent call we register a read operation against
// the descriptor.
interrupter_.interrupt();
}
kqueue_reactor::~kqueue_reactor()
{
close(kqueue_fd_);
}
void kqueue_reactor::shutdown_service()
{
mutex::scoped_lock lock(mutex_);
shutdown_ = true;
lock.unlock();
op_queue<operation> ops;
while (descriptor_state* state = registered_descriptors_.first())
{
for (int i = 0; i < max_ops; ++i)
ops.push(state->op_queue_[i]);
state->shutdown_ = true;
registered_descriptors_.free(state);
}
timer_queues_.get_all_timers(ops);
io_service_.abandon_operations(ops);
}
void kqueue_reactor::fork_service(boost::asio::io_service::fork_event fork_ev)
{
if (fork_ev == boost::asio::io_service::fork_child)
{
// The kqueue descriptor is automatically closed in the child.
kqueue_fd_ = -1;
kqueue_fd_ = do_kqueue_create();
interrupter_.recreate();
// Re-register all descriptors with kqueue.
mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
for (descriptor_state* state = registered_descriptors_.first();
state != 0; state = state->next_)
{
struct kevent events[2];
int num_events = 0;
if (!state->op_queue_[read_op].empty())
BOOST_ASIO_KQUEUE_EV_SET(&events[num_events++], state->descriptor_,
EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, state);
else if (!state->op_queue_[except_op].empty())
BOOST_ASIO_KQUEUE_EV_SET(&events[num_events++], state->descriptor_,
EVFILT_READ, EV_ADD | EV_CLEAR, EV_OOBAND, 0, state);
if (!state->op_queue_[write_op].empty())
BOOST_ASIO_KQUEUE_EV_SET(&events[num_events++], state->descriptor_,
EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, state);
if (num_events && ::kevent(kqueue_fd_, events, num_events, 0, 0, 0) == -1)
{
boost::system::error_code error(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(error);
}
}
}
}
void kqueue_reactor::init_task()
{
io_service_.init_task();
}
int kqueue_reactor::register_descriptor(socket_type descriptor,
kqueue_reactor::per_descriptor_data& descriptor_data)
{
descriptor_data = allocate_descriptor_state();
mutex::scoped_lock lock(descriptor_data->mutex_);
descriptor_data->descriptor_ = descriptor;
descriptor_data->shutdown_ = false;
for (int i = 0; i < max_ops; ++i)
descriptor_data->op_queue_is_empty_[i] =
descriptor_data->op_queue_[i].empty();
return 0;
}
int kqueue_reactor::register_internal_descriptor(
int op_type, socket_type descriptor,
kqueue_reactor::per_descriptor_data& descriptor_data, reactor_op* op)
{
descriptor_data = allocate_descriptor_state();
mutex::scoped_lock lock(descriptor_data->mutex_);
descriptor_data->descriptor_ = descriptor;
descriptor_data->shutdown_ = false;
descriptor_data->op_queue_[op_type].push(op);
for (int i = 0; i < max_ops; ++i)
descriptor_data->op_queue_is_empty_[i] =
descriptor_data->op_queue_[i].empty();
struct kevent event;
switch (op_type)
{
case read_op:
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ,
EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
break;
case write_op:
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_WRITE,
EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
break;
case except_op:
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ,
EV_ADD | EV_CLEAR, EV_OOBAND, 0, descriptor_data);
break;
}
::kevent(kqueue_fd_, &event, 1, 0, 0, 0);
return 0;
}
void kqueue_reactor::move_descriptor(socket_type,
kqueue_reactor::per_descriptor_data& target_descriptor_data,
kqueue_reactor::per_descriptor_data& source_descriptor_data)
{
target_descriptor_data = source_descriptor_data;
source_descriptor_data = 0;
}
void kqueue_reactor::start_op(int op_type, socket_type descriptor,
kqueue_reactor::per_descriptor_data& descriptor_data,
reactor_op* op, bool allow_speculative)
{
if (!descriptor_data)
{
op->ec_ = boost::asio::error::bad_descriptor;
post_immediate_completion(op);
return;
}
if (allow_speculative)
{
if (descriptor_data->op_queue_is_empty_[op_type]
&& (op_type != read_op
|| descriptor_data->op_queue_is_empty_[except_op]))
{
if (op->perform())
{
io_service_.post_immediate_completion(op);
return;
}
allow_speculative = false;
}
}
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
if (descriptor_data->shutdown_)
{
post_immediate_completion(op);
return;
}
for (int i = 0; i < max_ops; ++i)
descriptor_data->op_queue_is_empty_[i] =
descriptor_data->op_queue_[i].empty();
bool first = descriptor_data->op_queue_is_empty_[op_type];
if (first)
{
if (allow_speculative)
{
if (op_type != read_op || descriptor_data->op_queue_is_empty_[except_op])
{
if (op->perform())
{
descriptor_lock.unlock();
io_service_.post_immediate_completion(op);
return;
}
}
}
}
descriptor_data->op_queue_[op_type].push(op);
descriptor_data->op_queue_is_empty_[op_type] = false;
io_service_.work_started();
if (first)
{
struct kevent event;
switch (op_type)
{
case read_op:
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ,
EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
break;
case write_op:
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_WRITE,
EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
break;
case except_op:
if (!descriptor_data->op_queue_[read_op].empty())
return; // Already registered for read events.
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ,
EV_ADD | EV_CLEAR, EV_OOBAND, 0, descriptor_data);
break;
}
if (::kevent(kqueue_fd_, &event, 1, 0, 0, 0) == -1)
{
op->ec_ = boost::system::error_code(errno,
boost::asio::error::get_system_category());
descriptor_data->op_queue_[op_type].pop();
io_service_.post_deferred_completion(op);
}
}
}
void kqueue_reactor::cancel_ops(socket_type,
kqueue_reactor::per_descriptor_data& descriptor_data)
{
if (!descriptor_data)
return;
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
{
while (reactor_op* op = descriptor_data->op_queue_[i].front())
{
op->ec_ = boost::asio::error::operation_aborted;
descriptor_data->op_queue_[i].pop();
ops.push(op);
}
}
descriptor_lock.unlock();
io_service_.post_deferred_completions(ops);
}
void kqueue_reactor::deregister_descriptor(socket_type descriptor,
kqueue_reactor::per_descriptor_data& descriptor_data, bool closing)
{
if (!descriptor_data)
return;
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
if (!descriptor_data->shutdown_)
{
if (closing)
{
// The descriptor will be automatically removed from the kqueue when it
// is closed.
}
else
{
struct kevent events[2];
BOOST_ASIO_KQUEUE_EV_SET(&events[0], descriptor,
EVFILT_READ, EV_DELETE, 0, 0, 0);
BOOST_ASIO_KQUEUE_EV_SET(&events[1], descriptor,
EVFILT_WRITE, EV_DELETE, 0, 0, 0);
::kevent(kqueue_fd_, events, 2, 0, 0, 0);
}
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
{
while (reactor_op* op = descriptor_data->op_queue_[i].front())
{
op->ec_ = boost::asio::error::operation_aborted;
descriptor_data->op_queue_[i].pop();
ops.push(op);
}
}
descriptor_data->descriptor_ = -1;
descriptor_data->shutdown_ = true;
descriptor_lock.unlock();
free_descriptor_state(descriptor_data);
descriptor_data = 0;
io_service_.post_deferred_completions(ops);
}
}
void kqueue_reactor::deregister_internal_descriptor(socket_type descriptor,
kqueue_reactor::per_descriptor_data& descriptor_data)
{
if (!descriptor_data)
return;
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
if (!descriptor_data->shutdown_)
{
struct kevent events[2];
BOOST_ASIO_KQUEUE_EV_SET(&events[0], descriptor,
EVFILT_READ, EV_DELETE, 0, 0, 0);
BOOST_ASIO_KQUEUE_EV_SET(&events[1], descriptor,
EVFILT_WRITE, EV_DELETE, 0, 0, 0);
::kevent(kqueue_fd_, events, 2, 0, 0, 0);
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
ops.push(descriptor_data->op_queue_[i]);
descriptor_data->descriptor_ = -1;
descriptor_data->shutdown_ = true;
descriptor_lock.unlock();
free_descriptor_state(descriptor_data);
descriptor_data = 0;
}
}
void kqueue_reactor::run(bool block, op_queue<operation>& ops)
{
mutex::scoped_lock lock(mutex_);
// Determine how long to block while waiting for events.
timespec timeout_buf = { 0, 0 };
timespec* timeout = block ? get_timeout(timeout_buf) : &timeout_buf;
lock.unlock();
// Block on the kqueue descriptor.
struct kevent events[128];
int num_events = kevent(kqueue_fd_, 0, 0, events, 128, timeout);
// Dispatch the waiting events.
for (int i = 0; i < num_events; ++i)
{
int descriptor = events[i].ident;
void* ptr = reinterpret_cast<void*>(events[i].udata);
if (ptr == &interrupter_)
{
// No need to reset the interrupter since we're leaving the descriptor
// in a ready-to-read state and relying on edge-triggered notifications.
}
else
{
descriptor_state* descriptor_data = static_cast<descriptor_state*>(ptr);
mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
// Exception operations must be processed first to ensure that any
// out-of-band data is read before normal data.
#if defined(__NetBSD__)
static const unsigned int filter[max_ops] =
#else
static const int filter[max_ops] =
#endif
{ EVFILT_READ, EVFILT_WRITE, EVFILT_READ };
for (int j = max_ops - 1; j >= 0; --j)
{
if (events[i].filter == filter[j])
{
if (j != except_op || events[i].flags & EV_OOBAND)
{
while (reactor_op* op = descriptor_data->op_queue_[j].front())
{
if (events[i].flags & EV_ERROR)
{
op->ec_ = boost::system::error_code(events[i].data,
boost::asio::error::get_system_category());
descriptor_data->op_queue_[j].pop();
ops.push(op);
}
if (op->perform())
{
descriptor_data->op_queue_[j].pop();
ops.push(op);
}
else
break;
}
}
}
}
// Renew registration for event notifications.
struct kevent event;
switch (events[i].filter)
{
case EVFILT_READ:
if (!descriptor_data->op_queue_[read_op].empty())
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ,
EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
else if (!descriptor_data->op_queue_[except_op].empty())
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ,
EV_ADD | EV_CLEAR, EV_OOBAND, 0, descriptor_data);
else
continue;
break;
case EVFILT_WRITE:
if (!descriptor_data->op_queue_[write_op].empty())
BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_WRITE,
EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
else
continue;
break;
default:
break;
}
if (::kevent(kqueue_fd_, &event, 1, 0, 0, 0) == -1)
{
boost::system::error_code error(errno,
boost::asio::error::get_system_category());
for (int j = 0; j < max_ops; ++j)
{
while (reactor_op* op = descriptor_data->op_queue_[j].front())
{
op->ec_ = error;
descriptor_data->op_queue_[j].pop();
ops.push(op);
}
}
}
}
}
lock.lock();
timer_queues_.get_ready_timers(ops);
}
void kqueue_reactor::interrupt()
{
struct kevent event;
BOOST_ASIO_KQUEUE_EV_SET(&event, interrupter_.read_descriptor(),
EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, &interrupter_);
::kevent(kqueue_fd_, &event, 1, 0, 0, 0);
}
int kqueue_reactor::do_kqueue_create()
{
int fd = ::kqueue();
if (fd == -1)
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "kqueue");
}
return fd;
}
kqueue_reactor::descriptor_state* kqueue_reactor::allocate_descriptor_state()
{
mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
return registered_descriptors_.alloc();
}
void kqueue_reactor::free_descriptor_state(kqueue_reactor::descriptor_state* s)
{
mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
registered_descriptors_.free(s);
}
void kqueue_reactor::do_add_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.insert(&queue);
}
void kqueue_reactor::do_remove_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.erase(&queue);
}
timespec* kqueue_reactor::get_timeout(timespec& ts)
{
// By default we will wait no longer than 5 minutes. This will ensure that
// any changes to the system clock are detected after no longer than this.
long usec = timer_queues_.wait_duration_usec(5 * 60 * 1000 * 1000);
ts.tv_sec = usec / 1000000;
ts.tv_nsec = (usec % 1000000) * 1000;
return &ts;
}
} // namespace detail
} // namespace asio
} // namespace boost
#undef BOOST_ASIO_KQUEUE_EV_SET
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_KQUEUE)
#endif // BOOST_ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP

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//
// detail/impl/pipe_select_interrupter.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
#define BOOST_ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_WINDOWS)
#if !defined(__CYGWIN__)
#if !defined(__SYMBIAN32__)
#if !defined(BOOST_ASIO_HAS_EVENTFD)
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <boost/asio/detail/pipe_select_interrupter.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
pipe_select_interrupter::pipe_select_interrupter()
{
open_descriptors();
}
void pipe_select_interrupter::open_descriptors()
{
int pipe_fds[2];
if (pipe(pipe_fds) == 0)
{
read_descriptor_ = pipe_fds[0];
::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
write_descriptor_ = pipe_fds[1];
::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK);
#if defined(FD_CLOEXEC)
::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
::fcntl(write_descriptor_, F_SETFD, FD_CLOEXEC);
#endif // defined(FD_CLOEXEC)
}
else
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "pipe_select_interrupter");
}
}
pipe_select_interrupter::~pipe_select_interrupter()
{
close_descriptors();
}
void pipe_select_interrupter::close_descriptors()
{
if (read_descriptor_ != -1)
::close(read_descriptor_);
if (write_descriptor_ != -1)
::close(write_descriptor_);
}
void pipe_select_interrupter::recreate()
{
close_descriptors();
write_descriptor_ = -1;
read_descriptor_ = -1;
open_descriptors();
}
void pipe_select_interrupter::interrupt()
{
char byte = 0;
int result = ::write(write_descriptor_, &byte, 1);
(void)result;
}
bool pipe_select_interrupter::reset()
{
for (;;)
{
char data[1024];
int bytes_read = ::read(read_descriptor_, data, sizeof(data));
if (bytes_read < 0 && errno == EINTR)
continue;
bool was_interrupted = (bytes_read > 0);
while (bytes_read == sizeof(data))
bytes_read = ::read(read_descriptor_, data, sizeof(data));
return was_interrupted;
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_ASIO_HAS_EVENTFD)
#endif // !defined(__SYMBIAN32__)
#endif // !defined(__CYGWIN__)
#endif // !defined(BOOST_WINDOWS)
#endif // BOOST_ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP

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//
// detail/impl/posix_event.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
#define BOOST_ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/posix_event.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
posix_event::posix_event()
: signalled_(false)
{
int error = ::pthread_cond_init(&cond_, 0);
boost::system::error_code ec(error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "event");
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_IMPL_POSIX_EVENT_IPP

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//
// detail/impl/posix_mutex.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
#define BOOST_ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/posix_mutex.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
posix_mutex::posix_mutex()
{
int error = ::pthread_mutex_init(&mutex_, 0);
boost::system::error_code ec(error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "mutex");
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP

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//
// detail/impl/posix_thread.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
#define BOOST_ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/posix_thread.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
posix_thread::~posix_thread()
{
if (!joined_)
::pthread_detach(thread_);
}
void posix_thread::join()
{
if (!joined_)
{
::pthread_join(thread_, 0);
joined_ = true;
}
}
void posix_thread::start_thread(func_base* arg)
{
int error = ::pthread_create(&thread_, 0,
boost_asio_detail_posix_thread_function, arg);
if (error != 0)
{
delete arg;
boost::system::error_code ec(error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "thread");
}
}
void* boost_asio_detail_posix_thread_function(void* arg)
{
posix_thread::auto_func_base_ptr func = {
static_cast<posix_thread::func_base*>(arg) };
func.ptr->run();
return 0;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_IMPL_POSIX_THREAD_IPP

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//
// detail/impl/posix_tss_ptr.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
#define BOOST_ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/posix_tss_ptr.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
void posix_tss_ptr_create(pthread_key_t& key)
{
int error = ::pthread_key_create(&key, 0);
boost::system::error_code ec(error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "tss");
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP

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//
// detail/impl/reactive_descriptor_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#include <boost/asio/error.hpp>
#include <boost/asio/detail/reactive_descriptor_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
reactive_descriptor_service::reactive_descriptor_service(
boost::asio::io_service& io_service)
: reactor_(boost::asio::use_service<reactor>(io_service))
{
reactor_.init_task();
}
void reactive_descriptor_service::shutdown_service()
{
}
void reactive_descriptor_service::construct(
reactive_descriptor_service::implementation_type& impl)
{
impl.descriptor_ = -1;
impl.state_ = 0;
}
void reactive_descriptor_service::move_construct(
reactive_descriptor_service::implementation_type& impl,
reactive_descriptor_service::implementation_type& other_impl)
{
impl.descriptor_ = other_impl.descriptor_;
other_impl.descriptor_ = -1;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
reactor_.move_descriptor(impl.descriptor_,
impl.reactor_data_, other_impl.reactor_data_);
}
void reactive_descriptor_service::move_assign(
reactive_descriptor_service::implementation_type& impl,
reactive_descriptor_service& other_service,
reactive_descriptor_service::implementation_type& other_impl)
{
destroy(impl);
impl.descriptor_ = other_impl.descriptor_;
other_impl.descriptor_ = -1;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
other_service.reactor_.move_descriptor(impl.descriptor_,
impl.reactor_data_, other_impl.reactor_data_);
}
void reactive_descriptor_service::destroy(
reactive_descriptor_service::implementation_type& impl)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close"));
reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_,
(impl.state_ & descriptor_ops::possible_dup) == 0);
}
boost::system::error_code ignored_ec;
descriptor_ops::close(impl.descriptor_, impl.state_, ignored_ec);
}
boost::system::error_code reactive_descriptor_service::assign(
reactive_descriptor_service::implementation_type& impl,
const native_handle_type& native_descriptor, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
if (int err = reactor_.register_descriptor(
native_descriptor, impl.reactor_data_))
{
ec = boost::system::error_code(err,
boost::asio::error::get_system_category());
return ec;
}
impl.descriptor_ = native_descriptor;
impl.state_ = descriptor_ops::possible_dup;
ec = boost::system::error_code();
return ec;
}
boost::system::error_code reactive_descriptor_service::close(
reactive_descriptor_service::implementation_type& impl,
boost::system::error_code& ec)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close"));
reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_,
(impl.state_ & descriptor_ops::possible_dup) == 0);
}
descriptor_ops::close(impl.descriptor_, impl.state_, ec);
// The descriptor is closed by the OS even if close() returns an error.
//
// (Actually, POSIX says the state of the descriptor is unspecified. On
// Linux the descriptor is apparently closed anyway; e.g. see
// http://lkml.org/lkml/2005/9/10/129
// We'll just have to assume that other OSes follow the same behaviour.)
construct(impl);
return ec;
}
reactive_descriptor_service::native_handle_type
reactive_descriptor_service::release(
reactive_descriptor_service::implementation_type& impl)
{
native_handle_type descriptor = impl.descriptor_;
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "release"));
reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, false);
construct(impl);
}
return descriptor;
}
boost::system::error_code reactive_descriptor_service::cancel(
reactive_descriptor_service::implementation_type& impl,
boost::system::error_code& ec)
{
if (!is_open(impl))
{
ec = boost::asio::error::bad_descriptor;
return ec;
}
BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "cancel"));
reactor_.cancel_ops(impl.descriptor_, impl.reactor_data_);
ec = boost::system::error_code();
return ec;
}
void reactive_descriptor_service::start_op(
reactive_descriptor_service::implementation_type& impl,
int op_type, reactor_op* op, bool is_non_blocking, bool noop)
{
if (!noop)
{
if ((impl.state_ & descriptor_ops::non_blocking) ||
descriptor_ops::set_internal_non_blocking(
impl.descriptor_, impl.state_, true, op->ec_))
{
reactor_.start_op(op_type, impl.descriptor_,
impl.reactor_data_, op, is_non_blocking);
return;
}
}
reactor_.post_immediate_completion(op);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP

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//
// detail/impl/reactive_serial_port_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_SERIAL_PORT)
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#include <cstring>
#include <boost/asio/detail/reactive_serial_port_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
reactive_serial_port_service::reactive_serial_port_service(
boost::asio::io_service& io_service)
: descriptor_service_(io_service)
{
}
void reactive_serial_port_service::shutdown_service()
{
descriptor_service_.shutdown_service();
}
boost::system::error_code reactive_serial_port_service::open(
reactive_serial_port_service::implementation_type& impl,
const std::string& device, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
descriptor_ops::state_type state = 0;
int fd = descriptor_ops::open(device.c_str(),
O_RDWR | O_NONBLOCK | O_NOCTTY, ec);
if (fd < 0)
return ec;
int s = descriptor_ops::fcntl(fd, F_GETFL, ec);
if (s >= 0)
s = descriptor_ops::fcntl(fd, F_SETFL, s | O_NONBLOCK, ec);
if (s < 0)
{
boost::system::error_code ignored_ec;
descriptor_ops::close(fd, state, ignored_ec);
return ec;
}
// Set up default serial port options.
termios ios;
errno = 0;
s = descriptor_ops::error_wrapper(::tcgetattr(fd, &ios), ec);
if (s >= 0)
{
#if defined(_BSD_SOURCE)
::cfmakeraw(&ios);
#else
ios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK
| ISTRIP | INLCR | IGNCR | ICRNL | IXON);
ios.c_oflag &= ~OPOST;
ios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
ios.c_cflag &= ~(CSIZE | PARENB);
ios.c_cflag |= CS8;
#endif
ios.c_iflag |= IGNPAR;
ios.c_cflag |= CREAD | CLOCAL;
errno = 0;
s = descriptor_ops::error_wrapper(::tcsetattr(fd, TCSANOW, &ios), ec);
}
if (s < 0)
{
boost::system::error_code ignored_ec;
descriptor_ops::close(fd, state, ignored_ec);
return ec;
}
// We're done. Take ownership of the serial port descriptor.
if (descriptor_service_.assign(impl, fd, ec))
{
boost::system::error_code ignored_ec;
descriptor_ops::close(fd, state, ignored_ec);
}
return ec;
}
boost::system::error_code reactive_serial_port_service::do_set_option(
reactive_serial_port_service::implementation_type& impl,
reactive_serial_port_service::store_function_type store,
const void* option, boost::system::error_code& ec)
{
termios ios;
errno = 0;
descriptor_ops::error_wrapper(::tcgetattr(
descriptor_service_.native_handle(impl), &ios), ec);
if (ec)
return ec;
if (store(option, ios, ec))
return ec;
errno = 0;
descriptor_ops::error_wrapper(::tcsetattr(
descriptor_service_.native_handle(impl), TCSANOW, &ios), ec);
return ec;
}
boost::system::error_code reactive_serial_port_service::do_get_option(
const reactive_serial_port_service::implementation_type& impl,
reactive_serial_port_service::load_function_type load,
void* option, boost::system::error_code& ec) const
{
termios ios;
errno = 0;
descriptor_ops::error_wrapper(::tcgetattr(
descriptor_service_.native_handle(impl), &ios), ec);
if (ec)
return ec;
return load(option, ios, ec);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // defined(BOOST_ASIO_HAS_SERIAL_PORT)
#endif // BOOST_ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP

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//
// detail/reactive_socket_service_base.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
#define BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_ASIO_HAS_IOCP)
#include <boost/asio/detail/reactive_socket_service_base.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
reactive_socket_service_base::reactive_socket_service_base(
boost::asio::io_service& io_service)
: reactor_(use_service<reactor>(io_service))
{
reactor_.init_task();
}
void reactive_socket_service_base::shutdown_service()
{
}
void reactive_socket_service_base::construct(
reactive_socket_service_base::base_implementation_type& impl)
{
impl.socket_ = invalid_socket;
impl.state_ = 0;
}
void reactive_socket_service_base::base_move_construct(
reactive_socket_service_base::base_implementation_type& impl,
reactive_socket_service_base::base_implementation_type& other_impl)
{
impl.socket_ = other_impl.socket_;
other_impl.socket_ = invalid_socket;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
reactor_.move_descriptor(impl.socket_,
impl.reactor_data_, other_impl.reactor_data_);
}
void reactive_socket_service_base::base_move_assign(
reactive_socket_service_base::base_implementation_type& impl,
reactive_socket_service_base& other_service,
reactive_socket_service_base::base_implementation_type& other_impl)
{
destroy(impl);
impl.socket_ = other_impl.socket_;
other_impl.socket_ = invalid_socket;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
other_service.reactor_.move_descriptor(impl.socket_,
impl.reactor_data_, other_impl.reactor_data_);
}
void reactive_socket_service_base::destroy(
reactive_socket_service_base::base_implementation_type& impl)
{
if (impl.socket_ != invalid_socket)
{
BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close"));
reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
(impl.state_ & socket_ops::possible_dup) == 0);
boost::system::error_code ignored_ec;
socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
}
}
boost::system::error_code reactive_socket_service_base::close(
reactive_socket_service_base::base_implementation_type& impl,
boost::system::error_code& ec)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close"));
reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
(impl.state_ & socket_ops::possible_dup) == 0);
}
socket_ops::close(impl.socket_, impl.state_, false, ec);
// The descriptor is closed by the OS even if close() returns an error.
//
// (Actually, POSIX says the state of the descriptor is unspecified. On
// Linux the descriptor is apparently closed anyway; e.g. see
// http://lkml.org/lkml/2005/9/10/129
// We'll just have to assume that other OSes follow the same behaviour. The
// known exception is when Windows's closesocket() function fails with
// WSAEWOULDBLOCK, but this case is handled inside socket_ops::close().
construct(impl);
return ec;
}
boost::system::error_code reactive_socket_service_base::cancel(
reactive_socket_service_base::base_implementation_type& impl,
boost::system::error_code& ec)
{
if (!is_open(impl))
{
ec = boost::asio::error::bad_descriptor;
return ec;
}
BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "cancel"));
reactor_.cancel_ops(impl.socket_, impl.reactor_data_);
ec = boost::system::error_code();
return ec;
}
boost::system::error_code reactive_socket_service_base::do_open(
reactive_socket_service_base::base_implementation_type& impl,
int af, int type, int protocol, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
socket_holder sock(socket_ops::socket(af, type, protocol, ec));
if (sock.get() == invalid_socket)
return ec;
if (int err = reactor_.register_descriptor(sock.get(), impl.reactor_data_))
{
ec = boost::system::error_code(err,
boost::asio::error::get_system_category());
return ec;
}
impl.socket_ = sock.release();
switch (type)
{
case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
default: impl.state_ = 0; break;
}
ec = boost::system::error_code();
return ec;
}
boost::system::error_code reactive_socket_service_base::do_assign(
reactive_socket_service_base::base_implementation_type& impl, int type,
const reactive_socket_service_base::native_handle_type& native_socket,
boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
if (int err = reactor_.register_descriptor(
native_socket, impl.reactor_data_))
{
ec = boost::system::error_code(err,
boost::asio::error::get_system_category());
return ec;
}
impl.socket_ = native_socket;
switch (type)
{
case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
default: impl.state_ = 0; break;
}
impl.state_ |= socket_ops::possible_dup;
ec = boost::system::error_code();
return ec;
}
void reactive_socket_service_base::start_op(
reactive_socket_service_base::base_implementation_type& impl,
int op_type, reactor_op* op, bool is_non_blocking, bool noop)
{
if (!noop)
{
if ((impl.state_ & socket_ops::non_blocking)
|| socket_ops::set_internal_non_blocking(
impl.socket_, impl.state_, true, op->ec_))
{
reactor_.start_op(op_type, impl.socket_,
impl.reactor_data_, op, is_non_blocking);
return;
}
}
reactor_.post_immediate_completion(op);
}
void reactive_socket_service_base::start_accept_op(
reactive_socket_service_base::base_implementation_type& impl,
reactor_op* op, bool peer_is_open)
{
if (!peer_is_open)
start_op(impl, reactor::read_op, op, true, false);
else
{
op->ec_ = boost::asio::error::already_open;
reactor_.post_immediate_completion(op);
}
}
void reactive_socket_service_base::start_connect_op(
reactive_socket_service_base::base_implementation_type& impl,
reactor_op* op, const socket_addr_type* addr, size_t addrlen)
{
if ((impl.state_ & socket_ops::non_blocking)
|| socket_ops::set_internal_non_blocking(
impl.socket_, impl.state_, true, op->ec_))
{
if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0)
{
if (op->ec_ == boost::asio::error::in_progress
|| op->ec_ == boost::asio::error::would_block)
{
op->ec_ = boost::system::error_code();
reactor_.start_op(reactor::connect_op,
impl.socket_, impl.reactor_data_, op, false);
return;
}
}
}
reactor_.post_immediate_completion(op);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_ASIO_HAS_IOCP)
#endif // BOOST_ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP

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//
// detail/impl/resolver_service_base.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
#define BOOST_ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/resolver_service_base.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class resolver_service_base::work_io_service_runner
{
public:
work_io_service_runner(boost::asio::io_service& io_service)
: io_service_(io_service) {}
void operator()() { io_service_.run(); }
private:
boost::asio::io_service& io_service_;
};
resolver_service_base::resolver_service_base(
boost::asio::io_service& io_service)
: io_service_impl_(boost::asio::use_service<io_service_impl>(io_service)),
work_io_service_(new boost::asio::io_service),
work_io_service_impl_(boost::asio::use_service<
io_service_impl>(*work_io_service_)),
work_(new boost::asio::io_service::work(*work_io_service_)),
work_thread_(0)
{
}
resolver_service_base::~resolver_service_base()
{
shutdown_service();
}
void resolver_service_base::shutdown_service()
{
work_.reset();
if (work_io_service_.get())
{
work_io_service_->stop();
if (work_thread_.get())
{
work_thread_->join();
work_thread_.reset();
}
work_io_service_.reset();
}
}
void resolver_service_base::fork_service(
boost::asio::io_service::fork_event fork_ev)
{
if (work_thread_.get())
{
if (fork_ev == boost::asio::io_service::fork_prepare)
{
work_io_service_->stop();
work_thread_->join();
}
else
{
work_io_service_->reset();
work_thread_.reset(new boost::asio::detail::thread(
work_io_service_runner(*work_io_service_)));
}
}
}
void resolver_service_base::construct(
resolver_service_base::implementation_type& impl)
{
impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
}
void resolver_service_base::destroy(
resolver_service_base::implementation_type& impl)
{
BOOST_ASIO_HANDLER_OPERATION(("resolver", &impl, "cancel"));
impl.reset();
}
void resolver_service_base::cancel(
resolver_service_base::implementation_type& impl)
{
BOOST_ASIO_HANDLER_OPERATION(("resolver", &impl, "cancel"));
impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
}
void resolver_service_base::start_resolve_op(operation* op)
{
start_work_thread();
io_service_impl_.work_started();
work_io_service_impl_.post_immediate_completion(op);
}
void resolver_service_base::start_work_thread()
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (!work_thread_.get())
{
work_thread_.reset(new boost::asio::detail::thread(
work_io_service_runner(*work_io_service_)));
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP

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//
// detail/impl/select_reactor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
#define BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP) \
|| (!defined(BOOST_ASIO_HAS_DEV_POLL) \
&& !defined(BOOST_ASIO_HAS_EPOLL) \
&& !defined(BOOST_ASIO_HAS_KQUEUE))
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Time_Traits>
void select_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
{
do_add_timer_queue(queue);
}
// Remove a timer queue from the reactor.
template <typename Time_Traits>
void select_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
{
do_remove_timer_queue(queue);
}
template <typename Time_Traits>
void select_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (shutdown_)
{
io_service_.post_immediate_completion(op);
return;
}
bool earliest = queue.enqueue_timer(time, timer, op);
io_service_.work_started();
if (earliest)
interrupter_.interrupt();
}
template <typename Time_Traits>
std::size_t select_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
op_queue<operation> ops;
std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
lock.unlock();
io_service_.post_deferred_completions(ops);
return n;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_IOCP)
// || (!defined(BOOST_ASIO_HAS_DEV_POLL)
// && !defined(BOOST_ASIO_HAS_EPOLL)
// && !defined(BOOST_ASIO_HAS_KQUEUE))
#endif // BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP

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//
// detail/impl/select_reactor.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
#define BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP) \
|| (!defined(BOOST_ASIO_HAS_DEV_POLL) \
&& !defined(BOOST_ASIO_HAS_EPOLL) \
&& !defined(BOOST_ASIO_HAS_KQUEUE))
#include <boost/asio/detail/bind_handler.hpp>
#include <boost/asio/detail/fd_set_adapter.hpp>
#include <boost/asio/detail/select_reactor.hpp>
#include <boost/asio/detail/signal_blocker.hpp>
#include <boost/asio/detail/socket_ops.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
select_reactor::select_reactor(boost::asio::io_service& io_service)
: boost::asio::detail::service_base<select_reactor>(io_service),
io_service_(use_service<io_service_impl>(io_service)),
mutex_(),
interrupter_(),
#if defined(BOOST_ASIO_HAS_IOCP)
stop_thread_(false),
thread_(0),
#endif // defined(BOOST_ASIO_HAS_IOCP)
shutdown_(false)
{
#if defined(BOOST_ASIO_HAS_IOCP)
boost::asio::detail::signal_blocker sb;
thread_ = new boost::asio::detail::thread(
bind_handler(&select_reactor::call_run_thread, this));
#endif // defined(BOOST_ASIO_HAS_IOCP)
}
select_reactor::~select_reactor()
{
shutdown_service();
}
void select_reactor::shutdown_service()
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
shutdown_ = true;
#if defined(BOOST_ASIO_HAS_IOCP)
stop_thread_ = true;
#endif // defined(BOOST_ASIO_HAS_IOCP)
lock.unlock();
#if defined(BOOST_ASIO_HAS_IOCP)
if (thread_)
{
interrupter_.interrupt();
thread_->join();
delete thread_;
thread_ = 0;
}
#endif // defined(BOOST_ASIO_HAS_IOCP)
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
op_queue_[i].get_all_operations(ops);
timer_queues_.get_all_timers(ops);
io_service_.abandon_operations(ops);
}
void select_reactor::fork_service(boost::asio::io_service::fork_event fork_ev)
{
if (fork_ev == boost::asio::io_service::fork_child)
interrupter_.recreate();
}
void select_reactor::init_task()
{
io_service_.init_task();
}
int select_reactor::register_descriptor(socket_type,
select_reactor::per_descriptor_data&)
{
return 0;
}
int select_reactor::register_internal_descriptor(
int op_type, socket_type descriptor,
select_reactor::per_descriptor_data&, reactor_op* op)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
op_queue_[op_type].enqueue_operation(descriptor, op);
interrupter_.interrupt();
return 0;
}
void select_reactor::move_descriptor(socket_type,
select_reactor::per_descriptor_data&,
select_reactor::per_descriptor_data&)
{
}
void select_reactor::start_op(int op_type, socket_type descriptor,
select_reactor::per_descriptor_data&, reactor_op* op, bool)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (shutdown_)
{
post_immediate_completion(op);
return;
}
bool first = op_queue_[op_type].enqueue_operation(descriptor, op);
io_service_.work_started();
if (first)
interrupter_.interrupt();
}
void select_reactor::cancel_ops(socket_type descriptor,
select_reactor::per_descriptor_data&)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted);
}
void select_reactor::deregister_descriptor(socket_type descriptor,
select_reactor::per_descriptor_data&, bool)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted);
}
void select_reactor::deregister_internal_descriptor(
socket_type descriptor, select_reactor::per_descriptor_data&)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
op_queue_[i].cancel_operations(descriptor, ops);
}
void select_reactor::run(bool block, op_queue<operation>& ops)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
#if defined(BOOST_ASIO_HAS_IOCP)
// Check if the thread is supposed to stop.
if (stop_thread_)
return;
#endif // defined(BOOST_ASIO_HAS_IOCP)
// Set up the descriptor sets.
for (int i = 0; i < max_select_ops; ++i)
fd_sets_[i].reset();
fd_sets_[read_op].set(interrupter_.read_descriptor());
socket_type max_fd = 0;
bool have_work_to_do = !timer_queues_.all_empty();
for (int i = 0; i < max_select_ops; ++i)
{
have_work_to_do = have_work_to_do || !op_queue_[i].empty();
op_queue_[i].get_descriptors(fd_sets_[i], ops);
if (fd_sets_[i].max_descriptor() > max_fd)
max_fd = fd_sets_[i].max_descriptor();
}
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Connection operations on Windows use both except and write fd_sets.
have_work_to_do = have_work_to_do || !op_queue_[connect_op].empty();
op_queue_[connect_op].get_descriptors(fd_sets_[write_op], ops);
if (fd_sets_[write_op].max_descriptor() > max_fd)
max_fd = fd_sets_[write_op].max_descriptor();
op_queue_[connect_op].get_descriptors(fd_sets_[except_op], ops);
if (fd_sets_[except_op].max_descriptor() > max_fd)
max_fd = fd_sets_[except_op].max_descriptor();
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// We can return immediately if there's no work to do and the reactor is
// not supposed to block.
if (!block && !have_work_to_do)
return;
// Determine how long to block while waiting for events.
timeval tv_buf = { 0, 0 };
timeval* tv = block ? get_timeout(tv_buf) : &tv_buf;
lock.unlock();
// Block on the select call until descriptors become ready.
boost::system::error_code ec;
int retval = socket_ops::select(static_cast<int>(max_fd + 1),
fd_sets_[read_op], fd_sets_[write_op], fd_sets_[except_op], tv, ec);
// Reset the interrupter.
if (retval > 0 && fd_sets_[read_op].is_set(interrupter_.read_descriptor()))
{
interrupter_.reset();
--retval;
}
lock.lock();
// Dispatch all ready operations.
if (retval > 0)
{
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Connection operations on Windows use both except and write fd_sets.
op_queue_[connect_op].perform_operations_for_descriptors(
fd_sets_[except_op], ops);
op_queue_[connect_op].perform_operations_for_descriptors(
fd_sets_[write_op], ops);
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Exception operations must be processed first to ensure that any
// out-of-band data is read before normal data.
for (int i = max_select_ops - 1; i >= 0; --i)
op_queue_[i].perform_operations_for_descriptors(fd_sets_[i], ops);
}
timer_queues_.get_ready_timers(ops);
}
void select_reactor::interrupt()
{
interrupter_.interrupt();
}
#if defined(BOOST_ASIO_HAS_IOCP)
void select_reactor::run_thread()
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
while (!stop_thread_)
{
lock.unlock();
op_queue<operation> ops;
run(true, ops);
io_service_.post_deferred_completions(ops);
lock.lock();
}
}
void select_reactor::call_run_thread(select_reactor* reactor)
{
reactor->run_thread();
}
#endif // defined(BOOST_ASIO_HAS_IOCP)
void select_reactor::do_add_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.insert(&queue);
}
void select_reactor::do_remove_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(mutex_);
timer_queues_.erase(&queue);
}
timeval* select_reactor::get_timeout(timeval& tv)
{
// By default we will wait no longer than 5 minutes. This will ensure that
// any changes to the system clock are detected after no longer than this.
long usec = timer_queues_.wait_duration_usec(5 * 60 * 1000 * 1000);
tv.tv_sec = usec / 1000000;
tv.tv_usec = usec % 1000000;
return &tv;
}
void select_reactor::cancel_ops_unlocked(socket_type descriptor,
const boost::system::error_code& ec)
{
bool need_interrupt = false;
op_queue<operation> ops;
for (int i = 0; i < max_ops; ++i)
need_interrupt = op_queue_[i].cancel_operations(
descriptor, ops, ec) || need_interrupt;
io_service_.post_deferred_completions(ops);
if (need_interrupt)
interrupter_.interrupt();
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_IOCP)
// || (!defined(BOOST_ASIO_HAS_DEV_POLL)
// && !defined(BOOST_ASIO_HAS_EPOLL)
// && !defined(BOOST_ASIO_HAS_KQUEUE))
#endif // BOOST_ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP

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//
// detail/impl/service_registry.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
#define BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Service, typename Arg>
service_registry::service_registry(
boost::asio::io_service& o, Service*, Arg arg)
: owner_(o),
first_service_(new Service(o, arg))
{
boost::asio::io_service::service::key key;
init_key(key, Service::id);
first_service_->key_ = key;
first_service_->next_ = 0;
}
template <typename Service>
Service& service_registry::first_service()
{
return *static_cast<Service*>(first_service_);
}
template <typename Service>
Service& service_registry::use_service()
{
boost::asio::io_service::service::key key;
init_key(key, Service::id);
factory_type factory = &service_registry::create<Service>;
return *static_cast<Service*>(do_use_service(key, factory));
}
template <typename Service>
void service_registry::add_service(Service* new_service)
{
boost::asio::io_service::service::key key;
init_key(key, Service::id);
return do_add_service(key, new_service);
}
template <typename Service>
bool service_registry::has_service() const
{
boost::asio::io_service::service::key key;
init_key(key, Service::id);
return do_has_service(key);
}
#if !defined(BOOST_ASIO_NO_TYPEID)
template <typename Service>
void service_registry::init_key(boost::asio::io_service::service::key& key,
const boost::asio::detail::service_id<Service>& /*id*/)
{
key.type_info_ = &typeid(typeid_wrapper<Service>);
key.id_ = 0;
}
#endif // !defined(BOOST_ASIO_NO_TYPEID)
template <typename Service>
boost::asio::io_service::service* service_registry::create(
boost::asio::io_service& owner)
{
return new Service(owner);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP

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//
// detail/impl/service_registry.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
#define BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/throw_exception.hpp>
#include <vector>
#include <boost/asio/detail/service_registry.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
service_registry::~service_registry()
{
// Shutdown all services. This must be done in a separate loop before the
// services are destroyed since the destructors of user-defined handler
// objects may try to access other service objects.
boost::asio::io_service::service* service = first_service_;
while (service)
{
service->shutdown_service();
service = service->next_;
}
// Destroy all services.
while (first_service_)
{
boost::asio::io_service::service* next_service = first_service_->next_;
destroy(first_service_);
first_service_ = next_service;
}
}
void service_registry::notify_fork(boost::asio::io_service::fork_event fork_ev)
{
// Make a copy of all of the services while holding the lock. We don't want
// to hold the lock while calling into each service, as it may try to call
// back into this class.
std::vector<boost::asio::io_service::service*> services;
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
boost::asio::io_service::service* service = first_service_;
while (service)
{
services.push_back(service);
service = service->next_;
}
}
// If processing the fork_prepare event, we want to go in reverse order of
// service registration, which happens to be the existing order of the
// services in the vector. For the other events we want to go in the other
// direction.
std::size_t num_services = services.size();
if (fork_ev == boost::asio::io_service::fork_prepare)
for (std::size_t i = 0; i < num_services; ++i)
services[i]->fork_service(fork_ev);
else
for (std::size_t i = num_services; i > 0; --i)
services[i - 1]->fork_service(fork_ev);
}
void service_registry::init_key(boost::asio::io_service::service::key& key,
const boost::asio::io_service::id& id)
{
key.type_info_ = 0;
key.id_ = &id;
}
bool service_registry::keys_match(
const boost::asio::io_service::service::key& key1,
const boost::asio::io_service::service::key& key2)
{
if (key1.id_ && key2.id_)
if (key1.id_ == key2.id_)
return true;
if (key1.type_info_ && key2.type_info_)
if (*key1.type_info_ == *key2.type_info_)
return true;
return false;
}
void service_registry::destroy(boost::asio::io_service::service* service)
{
delete service;
}
boost::asio::io_service::service* service_registry::do_use_service(
const boost::asio::io_service::service::key& key,
factory_type factory)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
// First see if there is an existing service object with the given key.
boost::asio::io_service::service* service = first_service_;
while (service)
{
if (keys_match(service->key_, key))
return service;
service = service->next_;
}
// Create a new service object. The service registry's mutex is not locked
// at this time to allow for nested calls into this function from the new
// service's constructor.
lock.unlock();
auto_service_ptr new_service = { factory(owner_) };
new_service.ptr_->key_ = key;
lock.lock();
// Check that nobody else created another service object of the same type
// while the lock was released.
service = first_service_;
while (service)
{
if (keys_match(service->key_, key))
return service;
service = service->next_;
}
// Service was successfully initialised, pass ownership to registry.
new_service.ptr_->next_ = first_service_;
first_service_ = new_service.ptr_;
new_service.ptr_ = 0;
return first_service_;
}
void service_registry::do_add_service(
const boost::asio::io_service::service::key& key,
boost::asio::io_service::service* new_service)
{
if (&owner_ != &new_service->get_io_service())
boost::throw_exception(invalid_service_owner());
boost::asio::detail::mutex::scoped_lock lock(mutex_);
// Check if there is an existing service object with the given key.
boost::asio::io_service::service* service = first_service_;
while (service)
{
if (keys_match(service->key_, key))
boost::throw_exception(service_already_exists());
service = service->next_;
}
// Take ownership of the service object.
new_service->key_ = key;
new_service->next_ = first_service_;
first_service_ = new_service;
}
bool service_registry::do_has_service(
const boost::asio::io_service::service::key& key) const
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
boost::asio::io_service::service* service = first_service_;
while (service)
{
if (keys_match(service->key_, key))
return true;
service = service->next_;
}
return false;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP

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//
// detail/impl/signal_set_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <cstring>
#include <boost/asio/detail/reactor.hpp>
#include <boost/asio/detail/signal_blocker.hpp>
#include <boost/asio/detail/signal_set_service.hpp>
#include <boost/asio/detail/static_mutex.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct signal_state
{
// Mutex used for protecting global state.
static_mutex mutex_;
// The read end of the pipe used for signal notifications.
int read_descriptor_;
// The write end of the pipe used for signal notifications.
int write_descriptor_;
// Whether the signal state has been prepared for a fork.
bool fork_prepared_;
// The head of a linked list of all signal_set_service instances.
class signal_set_service* service_list_;
// A count of the number of objects that are registered for each signal.
std::size_t registration_count_[max_signal_number];
};
signal_state* get_signal_state()
{
static signal_state state = {
BOOST_ASIO_STATIC_MUTEX_INIT, -1, -1, false, 0, { 0 } };
return &state;
}
void asio_signal_handler(int signal_number)
{
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
signal_set_service::deliver_signal(signal_number);
#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
int saved_errno = errno;
signal_state* state = get_signal_state();
int result = ::write(state->write_descriptor_,
&signal_number, sizeof(signal_number));
(void)result;
errno = saved_errno;
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#if defined(BOOST_ASIO_HAS_SIGNAL) && !defined(BOOST_ASIO_HAS_SIGACTION)
::signal(signal_number, asio_signal_handler);
#endif // defined(BOOST_ASIO_HAS_SIGNAL) && !defined(BOOST_ASIO_HAS_SIGACTION)
}
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
class signal_set_service::pipe_read_op : public reactor_op
{
public:
pipe_read_op()
: reactor_op(&pipe_read_op::do_perform, pipe_read_op::do_complete)
{
}
static bool do_perform(reactor_op*)
{
signal_state* state = get_signal_state();
int fd = state->read_descriptor_;
int signal_number = 0;
while (::read(fd, &signal_number, sizeof(int)) == sizeof(int))
if (signal_number >= 0 && signal_number < max_signal_number)
signal_set_service::deliver_signal(signal_number);
return false;
}
static void do_complete(io_service_impl* /*owner*/, operation* base,
const boost::system::error_code& /*ec*/,
std::size_t /*bytes_transferred*/)
{
pipe_read_op* o(static_cast<pipe_read_op*>(base));
delete o;
}
};
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
signal_set_service::signal_set_service(
boost::asio::io_service& io_service)
: io_service_(boost::asio::use_service<io_service_impl>(io_service)),
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
reactor_(boost::asio::use_service<reactor>(io_service)),
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
next_(0),
prev_(0)
{
get_signal_state()->mutex_.init();
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
reactor_.init_task();
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
for (int i = 0; i < max_signal_number; ++i)
registrations_[i] = 0;
add_service(this);
}
signal_set_service::~signal_set_service()
{
remove_service(this);
}
void signal_set_service::shutdown_service()
{
remove_service(this);
op_queue<operation> ops;
for (int i = 0; i < max_signal_number; ++i)
{
registration* reg = registrations_[i];
while (reg)
{
ops.push(*reg->queue_);
reg = reg->next_in_table_;
}
}
io_service_.abandon_operations(ops);
}
void signal_set_service::fork_service(
boost::asio::io_service::fork_event fork_ev)
{
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
switch (fork_ev)
{
case boost::asio::io_service::fork_prepare:
reactor_.deregister_internal_descriptor(
state->read_descriptor_, reactor_data_);
state->fork_prepared_ = true;
break;
case boost::asio::io_service::fork_parent:
state->fork_prepared_ = false;
reactor_.register_internal_descriptor(reactor::read_op,
state->read_descriptor_, reactor_data_, new pipe_read_op);
break;
case boost::asio::io_service::fork_child:
if (state->fork_prepared_)
{
boost::asio::detail::signal_blocker blocker;
close_descriptors();
open_descriptors();
state->fork_prepared_ = false;
}
reactor_.register_internal_descriptor(reactor::read_op,
state->read_descriptor_, reactor_data_, new pipe_read_op);
break;
default:
break;
}
#else // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
(void)fork_ev;
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
}
void signal_set_service::construct(
signal_set_service::implementation_type& impl)
{
impl.signals_ = 0;
}
void signal_set_service::destroy(
signal_set_service::implementation_type& impl)
{
boost::system::error_code ignored_ec;
clear(impl, ignored_ec);
cancel(impl, ignored_ec);
}
boost::system::error_code signal_set_service::add(
signal_set_service::implementation_type& impl,
int signal_number, boost::system::error_code& ec)
{
// Check that the signal number is valid.
if (signal_number < 0 || signal_number > max_signal_number)
{
ec = boost::asio::error::invalid_argument;
return ec;
}
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
// Find the appropriate place to insert the registration.
registration** insertion_point = &impl.signals_;
registration* next = impl.signals_;
while (next && next->signal_number_ < signal_number)
{
insertion_point = &next->next_in_set_;
next = next->next_in_set_;
}
// Only do something if the signal is not already registered.
if (next == 0 || next->signal_number_ != signal_number)
{
registration* new_registration = new registration;
#if defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION)
// Register for the signal if we're the first.
if (state->registration_count_[signal_number] == 0)
{
# if defined(BOOST_ASIO_HAS_SIGACTION)
using namespace std; // For memset.
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = asio_signal_handler;
sigfillset(&sa.sa_mask);
if (::sigaction(signal_number, &sa, 0) == -1)
# else // defined(BOOST_ASIO_HAS_SIGACTION)
if (::signal(signal_number, asio_signal_handler) == SIG_ERR)
# endif // defined(BOOST_ASIO_HAS_SIGACTION)
{
# if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
ec = boost::asio::error::invalid_argument;
# else // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
ec = boost::system::error_code(errno,
boost::asio::error::get_system_category());
# endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
delete new_registration;
return ec;
}
}
#endif // defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION)
// Record the new registration in the set.
new_registration->signal_number_ = signal_number;
new_registration->queue_ = &impl.queue_;
new_registration->next_in_set_ = next;
*insertion_point = new_registration;
// Insert registration into the registration table.
new_registration->next_in_table_ = registrations_[signal_number];
if (registrations_[signal_number])
registrations_[signal_number]->prev_in_table_ = new_registration;
registrations_[signal_number] = new_registration;
++state->registration_count_[signal_number];
}
ec = boost::system::error_code();
return ec;
}
boost::system::error_code signal_set_service::remove(
signal_set_service::implementation_type& impl,
int signal_number, boost::system::error_code& ec)
{
// Check that the signal number is valid.
if (signal_number < 0 || signal_number > max_signal_number)
{
ec = boost::asio::error::invalid_argument;
return ec;
}
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
// Find the signal number in the list of registrations.
registration** deletion_point = &impl.signals_;
registration* reg = impl.signals_;
while (reg && reg->signal_number_ < signal_number)
{
deletion_point = &reg->next_in_set_;
reg = reg->next_in_set_;
}
if (reg != 0 && reg->signal_number_ == signal_number)
{
#if defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION)
// Set signal handler back to the default if we're the last.
if (state->registration_count_[signal_number] == 1)
{
# if defined(BOOST_ASIO_HAS_SIGACTION)
using namespace std; // For memset.
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_DFL;
if (::sigaction(signal_number, &sa, 0) == -1)
# else // defined(BOOST_ASIO_HAS_SIGACTION)
if (::signal(signal_number, SIG_DFL) == SIG_ERR)
# endif // defined(BOOST_ASIO_HAS_SIGACTION)
{
# if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
ec = boost::asio::error::invalid_argument;
# else // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
ec = boost::system::error_code(errno,
boost::asio::error::get_system_category());
# endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
return ec;
}
}
#endif // defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION)
// Remove the registration from the set.
*deletion_point = reg->next_in_set_;
// Remove the registration from the registration table.
if (registrations_[signal_number] == reg)
registrations_[signal_number] = reg->next_in_table_;
if (reg->prev_in_table_)
reg->prev_in_table_->next_in_table_ = reg->next_in_table_;
if (reg->next_in_table_)
reg->next_in_table_->prev_in_table_ = reg->prev_in_table_;
--state->registration_count_[signal_number];
delete reg;
}
ec = boost::system::error_code();
return ec;
}
boost::system::error_code signal_set_service::clear(
signal_set_service::implementation_type& impl,
boost::system::error_code& ec)
{
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
while (registration* reg = impl.signals_)
{
#if defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION)
// Set signal handler back to the default if we're the last.
if (state->registration_count_[reg->signal_number_] == 1)
{
# if defined(BOOST_ASIO_HAS_SIGACTION)
using namespace std; // For memset.
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_DFL;
if (::sigaction(reg->signal_number_, &sa, 0) == -1)
# else // defined(BOOST_ASIO_HAS_SIGACTION)
if (::signal(reg->signal_number_, SIG_DFL) == SIG_ERR)
# endif // defined(BOOST_ASIO_HAS_SIGACTION)
{
# if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
ec = boost::asio::error::invalid_argument;
# else // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
ec = boost::system::error_code(errno,
boost::asio::error::get_system_category());
# endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
return ec;
}
}
#endif // defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION)
// Remove the registration from the registration table.
if (registrations_[reg->signal_number_] == reg)
registrations_[reg->signal_number_] = reg->next_in_table_;
if (reg->prev_in_table_)
reg->prev_in_table_->next_in_table_ = reg->next_in_table_;
if (reg->next_in_table_)
reg->next_in_table_->prev_in_table_ = reg->prev_in_table_;
--state->registration_count_[reg->signal_number_];
impl.signals_ = reg->next_in_set_;
delete reg;
}
ec = boost::system::error_code();
return ec;
}
boost::system::error_code signal_set_service::cancel(
signal_set_service::implementation_type& impl,
boost::system::error_code& ec)
{
BOOST_ASIO_HANDLER_OPERATION(("signal_set", &impl, "cancel"));
op_queue<operation> ops;
{
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
while (signal_op* op = impl.queue_.front())
{
op->ec_ = boost::asio::error::operation_aborted;
impl.queue_.pop();
ops.push(op);
}
}
io_service_.post_deferred_completions(ops);
ec = boost::system::error_code();
return ec;
}
void signal_set_service::deliver_signal(int signal_number)
{
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
signal_set_service* service = state->service_list_;
while (service)
{
op_queue<operation> ops;
registration* reg = service->registrations_[signal_number];
while (reg)
{
if (reg->queue_->empty())
{
++reg->undelivered_;
}
else
{
while (signal_op* op = reg->queue_->front())
{
op->signal_number_ = signal_number;
reg->queue_->pop();
ops.push(op);
}
}
reg = reg->next_in_table_;
}
service->io_service_.post_deferred_completions(ops);
service = service->next_;
}
}
void signal_set_service::add_service(signal_set_service* service)
{
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// If this is the first service to be created, open a new pipe.
if (state->service_list_ == 0)
open_descriptors();
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// Insert service into linked list of all services.
service->next_ = state->service_list_;
service->prev_ = 0;
if (state->service_list_)
state->service_list_->prev_ = service;
state->service_list_ = service;
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// Register for pipe readiness notifications.
service->reactor_.register_internal_descriptor(reactor::read_op,
state->read_descriptor_, service->reactor_data_, new pipe_read_op);
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
}
void signal_set_service::remove_service(signal_set_service* service)
{
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
if (service->next_ || service->prev_ || state->service_list_ == service)
{
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// Disable the pipe readiness notifications.
service->reactor_.deregister_descriptor(
state->read_descriptor_, service->reactor_data_, false);
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// Remove service from linked list of all services.
if (state->service_list_ == service)
state->service_list_ = service->next_;
if (service->prev_)
service->prev_->next_ = service->next_;
if (service->next_)
service->next_->prev_= service->prev_;
service->next_ = 0;
service->prev_ = 0;
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// If this is the last service to be removed, close the pipe.
if (state->service_list_ == 0)
close_descriptors();
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
}
}
void signal_set_service::open_descriptors()
{
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
signal_state* state = get_signal_state();
int pipe_fds[2];
if (::pipe(pipe_fds) == 0)
{
state->read_descriptor_ = pipe_fds[0];
::fcntl(state->read_descriptor_, F_SETFL, O_NONBLOCK);
state->write_descriptor_ = pipe_fds[1];
::fcntl(state->write_descriptor_, F_SETFL, O_NONBLOCK);
#if defined(FD_CLOEXEC)
::fcntl(state->read_descriptor_, F_SETFD, FD_CLOEXEC);
::fcntl(state->write_descriptor_, F_SETFD, FD_CLOEXEC);
#endif // defined(FD_CLOEXEC)
}
else
{
boost::system::error_code ec(errno,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "signal_set_service pipe");
}
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
}
void signal_set_service::close_descriptors()
{
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
signal_state* state = get_signal_state();
if (state->read_descriptor_ != -1)
::close(state->read_descriptor_);
state->read_descriptor_ = -1;
if (state->write_descriptor_ != -1)
::close(state->write_descriptor_);
state->write_descriptor_ = -1;
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
}
void signal_set_service::start_wait_op(
signal_set_service::implementation_type& impl, signal_op* op)
{
io_service_.work_started();
signal_state* state = get_signal_state();
static_mutex::scoped_lock lock(state->mutex_);
registration* reg = impl.signals_;
while (reg)
{
if (reg->undelivered_ > 0)
{
--reg->undelivered_;
io_service_.post_deferred_completion(op);
return;
}
reg = reg->next_in_set_;
}
impl.queue_.push(op);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP

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//
// detail/impl/socket_select_interrupter.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_SOCKET_SELECT_INTERRUPTER_IPP
#define BOOST_ASIO_DETAIL_IMPL_SOCKET_SELECT_INTERRUPTER_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS) \
|| defined(__CYGWIN__) \
|| defined(__SYMBIAN32__)
#include <cstdlib>
#include <boost/asio/detail/socket_holder.hpp>
#include <boost/asio/detail/socket_ops.hpp>
#include <boost/asio/detail/socket_select_interrupter.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
socket_select_interrupter::socket_select_interrupter()
{
open_descriptors();
}
void socket_select_interrupter::open_descriptors()
{
boost::system::error_code ec;
socket_holder acceptor(socket_ops::socket(
AF_INET, SOCK_STREAM, IPPROTO_TCP, ec));
if (acceptor.get() == invalid_socket)
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
int opt = 1;
socket_ops::state_type acceptor_state = 0;
socket_ops::setsockopt(acceptor.get(), acceptor_state,
SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt), ec);
using namespace std; // For memset.
sockaddr_in4_type addr;
std::size_t addr_len = sizeof(addr);
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr("127.0.0.1");
addr.sin_port = 0;
if (socket_ops::bind(acceptor.get(), (const socket_addr_type*)&addr,
addr_len, ec) == socket_error_retval)
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
if (socket_ops::getsockname(acceptor.get(), (socket_addr_type*)&addr,
&addr_len, ec) == socket_error_retval)
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
// Some broken firewalls on Windows will intermittently cause getsockname to
// return 0.0.0.0 when the socket is actually bound to 127.0.0.1. We
// explicitly specify the target address here to work around this problem.
addr.sin_addr.s_addr = inet_addr("127.0.0.1");
if (socket_ops::listen(acceptor.get(),
SOMAXCONN, ec) == socket_error_retval)
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
socket_holder client(socket_ops::socket(
AF_INET, SOCK_STREAM, IPPROTO_TCP, ec));
if (client.get() == invalid_socket)
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
if (socket_ops::connect(client.get(), (const socket_addr_type*)&addr,
addr_len, ec) == socket_error_retval)
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
socket_holder server(socket_ops::accept(acceptor.get(), 0, 0, ec));
if (server.get() == invalid_socket)
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
ioctl_arg_type non_blocking = 1;
socket_ops::state_type client_state = 0;
if (socket_ops::ioctl(client.get(), client_state,
FIONBIO, &non_blocking, ec))
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
opt = 1;
socket_ops::setsockopt(client.get(), client_state,
IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt), ec);
non_blocking = 1;
socket_ops::state_type server_state = 0;
if (socket_ops::ioctl(server.get(), server_state,
FIONBIO, &non_blocking, ec))
boost::asio::detail::throw_error(ec, "socket_select_interrupter");
opt = 1;
socket_ops::setsockopt(server.get(), server_state,
IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt), ec);
read_descriptor_ = server.release();
write_descriptor_ = client.release();
}
socket_select_interrupter::~socket_select_interrupter()
{
close_descriptors();
}
void socket_select_interrupter::close_descriptors()
{
boost::system::error_code ec;
socket_ops::state_type state = socket_ops::internal_non_blocking;
if (read_descriptor_ != invalid_socket)
socket_ops::close(read_descriptor_, state, true, ec);
if (write_descriptor_ != invalid_socket)
socket_ops::close(write_descriptor_, state, true, ec);
}
void socket_select_interrupter::recreate()
{
close_descriptors();
write_descriptor_ = invalid_socket;
read_descriptor_ = invalid_socket;
open_descriptors();
}
void socket_select_interrupter::interrupt()
{
char byte = 0;
socket_ops::buf b;
socket_ops::init_buf(b, &byte, 1);
boost::system::error_code ec;
socket_ops::send(write_descriptor_, &b, 1, 0, ec);
}
bool socket_select_interrupter::reset()
{
char data[1024];
socket_ops::buf b;
socket_ops::init_buf(b, data, sizeof(data));
boost::system::error_code ec;
int bytes_read = socket_ops::recv(read_descriptor_, &b, 1, 0, ec);
bool was_interrupted = (bytes_read > 0);
while (bytes_read == sizeof(data))
bytes_read = socket_ops::recv(read_descriptor_, &b, 1, 0, ec);
return was_interrupted;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS)
// || defined(__CYGWIN__)
// || defined(__SYMBIAN32__)
#endif // BOOST_ASIO_DETAIL_IMPL_SOCKET_SELECT_INTERRUPTER_IPP

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//
// detail/impl/strand_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP
#define BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/call_stack.hpp>
#include <boost/asio/detail/completion_handler.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
inline strand_service::strand_impl::strand_impl()
: operation(&strand_service::do_complete),
locked_(false)
{
}
struct strand_service::on_dispatch_exit
{
io_service_impl* io_service_;
strand_impl* impl_;
~on_dispatch_exit()
{
impl_->mutex_.lock();
impl_->ready_queue_.push(impl_->waiting_queue_);
bool more_handlers = impl_->locked_ = !impl_->ready_queue_.empty();
impl_->mutex_.unlock();
if (more_handlers)
io_service_->post_immediate_completion(impl_);
}
};
inline void strand_service::destroy(strand_service::implementation_type& impl)
{
impl = 0;
}
template <typename Handler>
void strand_service::dispatch(strand_service::implementation_type& impl,
Handler handler)
{
// If we are already in the strand then the handler can run immediately.
if (call_stack<strand_impl>::contains(impl))
{
fenced_block b(fenced_block::full);
boost_asio_handler_invoke_helpers::invoke(handler, handler);
return;
}
// Allocate and construct an operation to wrap the handler.
typedef completion_handler<Handler> op;
typename op::ptr p = { boost::addressof(handler),
boost_asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(handler);
BOOST_ASIO_HANDLER_CREATION((p.p, "strand", impl, "dispatch"));
bool dispatch_immediately = do_dispatch(impl, p.p);
operation* o = p.p;
p.v = p.p = 0;
if (dispatch_immediately)
{
// Indicate that this strand is executing on the current thread.
call_stack<strand_impl>::context ctx(impl);
// Ensure the next handler, if any, is scheduled on block exit.
on_dispatch_exit on_exit = { &io_service_, impl };
(void)on_exit;
completion_handler<Handler>::do_complete(
&io_service_, o, boost::system::error_code(), 0);
}
}
// Request the io_service to invoke the given handler and return immediately.
template <typename Handler>
void strand_service::post(strand_service::implementation_type& impl,
Handler handler)
{
// Allocate and construct an operation to wrap the handler.
typedef completion_handler<Handler> op;
typename op::ptr p = { boost::addressof(handler),
boost_asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(handler);
BOOST_ASIO_HANDLER_CREATION((p.p, "strand", impl, "post"));
do_post(impl, p.p);
p.v = p.p = 0;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP

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//
// detail/impl/strand_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/call_stack.hpp>
#include <boost/asio/detail/strand_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct strand_service::on_do_complete_exit
{
io_service_impl* owner_;
strand_impl* impl_;
~on_do_complete_exit()
{
impl_->mutex_.lock();
impl_->ready_queue_.push(impl_->waiting_queue_);
bool more_handlers = impl_->locked_ = !impl_->ready_queue_.empty();
impl_->mutex_.unlock();
if (more_handlers)
owner_->post_immediate_completion(impl_);
}
};
strand_service::strand_service(boost::asio::io_service& io_service)
: boost::asio::detail::service_base<strand_service>(io_service),
io_service_(boost::asio::use_service<io_service_impl>(io_service)),
mutex_(),
salt_(0)
{
}
void strand_service::shutdown_service()
{
op_queue<operation> ops;
boost::asio::detail::mutex::scoped_lock lock(mutex_);
for (std::size_t i = 0; i < num_implementations; ++i)
{
if (strand_impl* impl = implementations_[i].get())
{
ops.push(impl->waiting_queue_);
ops.push(impl->ready_queue_);
}
}
}
void strand_service::construct(strand_service::implementation_type& impl)
{
boost::asio::detail::mutex::scoped_lock lock(mutex_);
std::size_t salt = salt_++;
#if defined(BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION)
std::size_t index = salt;
#else // defined(BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION)
std::size_t index = reinterpret_cast<std::size_t>(&impl);
index += (reinterpret_cast<std::size_t>(&impl) >> 3);
index ^= salt + 0x9e3779b9 + (index << 6) + (index >> 2);
#endif // defined(BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION)
index = index % num_implementations;
if (!implementations_[index].get())
implementations_[index].reset(new strand_impl);
impl = implementations_[index].get();
}
bool strand_service::do_dispatch(implementation_type& impl, operation* op)
{
// If we are running inside the io_service, and no other handler already
// holds the strand lock, then the handler can run immediately.
bool can_dispatch = io_service_.can_dispatch();
impl->mutex_.lock();
if (can_dispatch && !impl->locked_)
{
// Immediate invocation is allowed.
impl->locked_ = true;
impl->mutex_.unlock();
return true;
}
if (impl->locked_)
{
// Some other handler already holds the strand lock. Enqueue for later.
impl->waiting_queue_.push(op);
impl->mutex_.unlock();
}
else
{
// The handler is acquiring the strand lock and so is responsible for
// scheduling the strand.
impl->locked_ = true;
impl->mutex_.unlock();
impl->ready_queue_.push(op);
io_service_.post_immediate_completion(impl);
}
return false;
}
void strand_service::do_post(implementation_type& impl, operation* op)
{
impl->mutex_.lock();
if (impl->locked_)
{
// Some other handler already holds the strand lock. Enqueue for later.
impl->waiting_queue_.push(op);
impl->mutex_.unlock();
}
else
{
// The handler is acquiring the strand lock and so is responsible for
// scheduling the strand.
impl->locked_ = true;
impl->mutex_.unlock();
impl->ready_queue_.push(op);
io_service_.post_immediate_completion(impl);
}
}
void strand_service::do_complete(io_service_impl* owner, operation* base,
const boost::system::error_code& ec, std::size_t /*bytes_transferred*/)
{
if (owner)
{
strand_impl* impl = static_cast<strand_impl*>(base);
// Indicate that this strand is executing on the current thread.
call_stack<strand_impl>::context ctx(impl);
// Ensure the next handler, if any, is scheduled on block exit.
on_do_complete_exit on_exit = { owner, impl };
(void)on_exit;
// Run all ready handlers. No lock is required since the ready queue is
// accessed only within the strand.
while (operation* o = impl->ready_queue_.front())
{
impl->ready_queue_.pop();
o->complete(*owner, ec, 0);
}
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_IPP

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//
// detail/impl/task_io_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
#define BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/completion_handler.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Handler>
void task_io_service::dispatch(Handler handler)
{
if (thread_call_stack::contains(this))
{
fenced_block b(fenced_block::full);
boost_asio_handler_invoke_helpers::invoke(handler, handler);
}
else
{
// Allocate and construct an operation to wrap the handler.
typedef completion_handler<Handler> op;
typename op::ptr p = { boost::addressof(handler),
boost_asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(handler);
BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "dispatch"));
post_immediate_completion(p.p);
p.v = p.p = 0;
}
}
template <typename Handler>
void task_io_service::post(Handler handler)
{
// Allocate and construct an operation to wrap the handler.
typedef completion_handler<Handler> op;
typename op::ptr p = { boost::addressof(handler),
boost_asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(handler);
BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "post"));
post_immediate_completion(p.p);
p.v = p.p = 0;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP

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//
// detail/impl/task_io_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_ASIO_HAS_IOCP)
#include <boost/limits.hpp>
#include <boost/asio/detail/event.hpp>
#include <boost/asio/detail/reactor.hpp>
#include <boost/asio/detail/task_io_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct task_io_service::task_cleanup
{
~task_cleanup()
{
// Enqueue the completed operations and reinsert the task at the end of
// the operation queue.
lock_->lock();
task_io_service_->task_interrupted_ = true;
task_io_service_->op_queue_.push(*ops_);
task_io_service_->op_queue_.push(&task_io_service_->task_operation_);
}
task_io_service* task_io_service_;
mutex::scoped_lock* lock_;
op_queue<operation>* ops_;
};
struct task_io_service::work_cleanup
{
~work_cleanup()
{
task_io_service_->work_finished();
#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
if (!ops_->empty())
{
lock_->lock();
task_io_service_->op_queue_.push(*ops_);
}
#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
}
task_io_service* task_io_service_;
mutex::scoped_lock* lock_;
op_queue<operation>* ops_;
};
struct task_io_service::thread_info
{
event* wakeup_event;
op_queue<operation>* private_op_queue;
thread_info* next;
};
task_io_service::task_io_service(
boost::asio::io_service& io_service, std::size_t concurrency_hint)
: boost::asio::detail::service_base<task_io_service>(io_service),
one_thread_(concurrency_hint == 1),
mutex_(),
task_(0),
task_interrupted_(true),
outstanding_work_(0),
stopped_(false),
shutdown_(false),
first_idle_thread_(0)
{
BOOST_ASIO_HANDLER_TRACKING_INIT;
}
void task_io_service::shutdown_service()
{
mutex::scoped_lock lock(mutex_);
shutdown_ = true;
lock.unlock();
// Destroy handler objects.
while (!op_queue_.empty())
{
operation* o = op_queue_.front();
op_queue_.pop();
if (o != &task_operation_)
o->destroy();
}
// Reset to initial state.
task_ = 0;
}
void task_io_service::init_task()
{
mutex::scoped_lock lock(mutex_);
if (!shutdown_ && !task_)
{
task_ = &use_service<reactor>(this->get_io_service());
op_queue_.push(&task_operation_);
wake_one_thread_and_unlock(lock);
}
}
std::size_t task_io_service::run(boost::system::error_code& ec)
{
ec = boost::system::error_code();
if (outstanding_work_ == 0)
{
stop();
return 0;
}
thread_info this_thread;
event wakeup_event;
this_thread.wakeup_event = &wakeup_event;
op_queue<operation> private_op_queue;
#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
this_thread.private_op_queue = one_thread_ == 1 ? &private_op_queue : 0;
#else // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
this_thread.private_op_queue = 0;
#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
this_thread.next = 0;
thread_call_stack::context ctx(this, this_thread);
mutex::scoped_lock lock(mutex_);
std::size_t n = 0;
for (; do_run_one(lock, this_thread, private_op_queue, ec); lock.lock())
if (n != (std::numeric_limits<std::size_t>::max)())
++n;
return n;
}
std::size_t task_io_service::run_one(boost::system::error_code& ec)
{
ec = boost::system::error_code();
if (outstanding_work_ == 0)
{
stop();
return 0;
}
thread_info this_thread;
event wakeup_event;
this_thread.wakeup_event = &wakeup_event;
op_queue<operation> private_op_queue;
this_thread.private_op_queue = 0;
this_thread.next = 0;
thread_call_stack::context ctx(this, this_thread);
mutex::scoped_lock lock(mutex_);
return do_run_one(lock, this_thread, private_op_queue, ec);
}
std::size_t task_io_service::poll(boost::system::error_code& ec)
{
ec = boost::system::error_code();
if (outstanding_work_ == 0)
{
stop();
return 0;
}
thread_info this_thread;
this_thread.wakeup_event = 0;
op_queue<operation> private_op_queue;
#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
this_thread.private_op_queue = one_thread_ == 1 ? &private_op_queue : 0;
#else // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
this_thread.private_op_queue = 0;
#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
this_thread.next = 0;
thread_call_stack::context ctx(this, this_thread);
mutex::scoped_lock lock(mutex_);
#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
// We want to support nested calls to poll() and poll_one(), so any handlers
// that are already on a thread-private queue need to be put on to the main
// queue now.
if (one_thread_)
if (thread_info* outer_thread_info = ctx.next_by_key())
if (outer_thread_info->private_op_queue)
op_queue_.push(*outer_thread_info->private_op_queue);
#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
std::size_t n = 0;
for (; do_poll_one(lock, private_op_queue, ec); lock.lock())
if (n != (std::numeric_limits<std::size_t>::max)())
++n;
return n;
}
std::size_t task_io_service::poll_one(boost::system::error_code& ec)
{
ec = boost::system::error_code();
if (outstanding_work_ == 0)
{
stop();
return 0;
}
thread_info this_thread;
this_thread.wakeup_event = 0;
op_queue<operation> private_op_queue;
this_thread.private_op_queue = 0;
this_thread.next = 0;
thread_call_stack::context ctx(this, this_thread);
mutex::scoped_lock lock(mutex_);
#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
// We want to support nested calls to poll() and poll_one(), so any handlers
// that are already on a thread-private queue need to be put on to the main
// queue now.
if (one_thread_)
if (thread_info* outer_thread_info = ctx.next_by_key())
if (outer_thread_info->private_op_queue)
op_queue_.push(*outer_thread_info->private_op_queue);
#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
return do_poll_one(lock, private_op_queue, ec);
}
void task_io_service::stop()
{
mutex::scoped_lock lock(mutex_);
stop_all_threads(lock);
}
bool task_io_service::stopped() const
{
mutex::scoped_lock lock(mutex_);
return stopped_;
}
void task_io_service::reset()
{
mutex::scoped_lock lock(mutex_);
stopped_ = false;
}
void task_io_service::post_immediate_completion(task_io_service::operation* op)
{
work_started();
post_deferred_completion(op);
}
void task_io_service::post_deferred_completion(task_io_service::operation* op)
{
#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
if (one_thread_)
{
if (thread_info* this_thread = thread_call_stack::contains(this))
{
if (this_thread->private_op_queue)
{
this_thread->private_op_queue->push(op);
return;
}
}
}
#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
mutex::scoped_lock lock(mutex_);
op_queue_.push(op);
wake_one_thread_and_unlock(lock);
}
void task_io_service::post_deferred_completions(
op_queue<task_io_service::operation>& ops)
{
if (!ops.empty())
{
#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
if (one_thread_)
{
if (thread_info* this_thread = thread_call_stack::contains(this))
{
if (this_thread->private_op_queue)
{
this_thread->private_op_queue->push(ops);
return;
}
}
}
#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
mutex::scoped_lock lock(mutex_);
op_queue_.push(ops);
wake_one_thread_and_unlock(lock);
}
}
void task_io_service::abandon_operations(
op_queue<task_io_service::operation>& ops)
{
op_queue<task_io_service::operation> ops2;
ops2.push(ops);
}
std::size_t task_io_service::do_run_one(mutex::scoped_lock& lock,
task_io_service::thread_info& this_thread,
op_queue<operation>& private_op_queue, const boost::system::error_code& ec)
{
while (!stopped_)
{
if (!op_queue_.empty())
{
// Prepare to execute first handler from queue.
operation* o = op_queue_.front();
op_queue_.pop();
bool more_handlers = (!op_queue_.empty());
if (o == &task_operation_)
{
task_interrupted_ = more_handlers;
if (more_handlers && !one_thread_)
wake_one_idle_thread_and_unlock(lock);
else
lock.unlock();
op_queue<operation> completed_ops;
task_cleanup on_exit = { this, &lock, &completed_ops };
(void)on_exit;
// Run the task. May throw an exception. Only block if the operation
// queue is empty and we're not polling, otherwise we want to return
// as soon as possible.
task_->run(!more_handlers, completed_ops);
}
else
{
std::size_t task_result = o->task_result_;
if (more_handlers && !one_thread_)
wake_one_thread_and_unlock(lock);
else
lock.unlock();
// Ensure the count of outstanding work is decremented on block exit.
work_cleanup on_exit = { this, &lock, &private_op_queue };
(void)on_exit;
// Complete the operation. May throw an exception. Deletes the object.
o->complete(*this, ec, task_result);
return 1;
}
}
else
{
// Nothing to run right now, so just wait for work to do.
this_thread.next = first_idle_thread_;
first_idle_thread_ = &this_thread;
this_thread.wakeup_event->clear(lock);
this_thread.wakeup_event->wait(lock);
}
}
return 0;
}
std::size_t task_io_service::do_poll_one(mutex::scoped_lock& lock,
op_queue<operation>& private_op_queue, const boost::system::error_code& ec)
{
if (stopped_)
return 0;
operation* o = op_queue_.front();
if (o == &task_operation_)
{
op_queue_.pop();
lock.unlock();
{
op_queue<operation> completed_ops;
task_cleanup c = { this, &lock, &completed_ops };
(void)c;
// Run the task. May throw an exception. Only block if the operation
// queue is empty and we're not polling, otherwise we want to return
// as soon as possible.
task_->run(false, completed_ops);
}
o = op_queue_.front();
if (o == &task_operation_)
return 0;
}
if (o == 0)
return 0;
op_queue_.pop();
bool more_handlers = (!op_queue_.empty());
std::size_t task_result = o->task_result_;
if (more_handlers && !one_thread_)
wake_one_thread_and_unlock(lock);
else
lock.unlock();
// Ensure the count of outstanding work is decremented on block exit.
work_cleanup on_exit = { this, &lock, &private_op_queue };
(void)on_exit;
// Complete the operation. May throw an exception. Deletes the object.
o->complete(*this, ec, task_result);
return 1;
}
void task_io_service::stop_all_threads(
mutex::scoped_lock& lock)
{
stopped_ = true;
while (first_idle_thread_)
{
thread_info* idle_thread = first_idle_thread_;
first_idle_thread_ = idle_thread->next;
idle_thread->next = 0;
idle_thread->wakeup_event->signal(lock);
}
if (!task_interrupted_ && task_)
{
task_interrupted_ = true;
task_->interrupt();
}
}
bool task_io_service::wake_one_idle_thread_and_unlock(
mutex::scoped_lock& lock)
{
if (first_idle_thread_)
{
thread_info* idle_thread = first_idle_thread_;
first_idle_thread_ = idle_thread->next;
idle_thread->next = 0;
idle_thread->wakeup_event->signal_and_unlock(lock);
return true;
}
return false;
}
void task_io_service::wake_one_thread_and_unlock(
mutex::scoped_lock& lock)
{
if (!wake_one_idle_thread_and_unlock(lock))
{
if (!task_interrupted_ && task_)
{
task_interrupted_ = true;
task_->interrupt();
}
lock.unlock();
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_ASIO_HAS_IOCP)
#endif // BOOST_ASIO_DETAIL_IMPL_TASK_IO_SERVICE_IPP

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//
// detail/impl/throw_error.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_THROW_ERROR_IPP
#define BOOST_ASIO_DETAIL_IMPL_THROW_ERROR_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/throw_exception.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/system/system_error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
void do_throw_error(const boost::system::error_code& err)
{
boost::system::system_error e(err);
boost::throw_exception(e);
}
void do_throw_error(const boost::system::error_code& err, const char* location)
{
boost::system::system_error e(err, location);
boost::throw_exception(e);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_THROW_ERROR_IPP

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//
// detail/impl/timer_queue.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_IPP
#define BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_ASIO_HEADER_ONLY)
#include <boost/asio/detail/timer_queue.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
timer_queue<time_traits<boost::posix_time::ptime> >::timer_queue()
{
}
timer_queue<time_traits<boost::posix_time::ptime> >::~timer_queue()
{
}
bool timer_queue<time_traits<boost::posix_time::ptime> >::enqueue_timer(
const time_type& time, per_timer_data& timer, timer_op* op)
{
return impl_.enqueue_timer(time, timer, op);
}
bool timer_queue<time_traits<boost::posix_time::ptime> >::empty() const
{
return impl_.empty();
}
long timer_queue<time_traits<boost::posix_time::ptime> >::wait_duration_msec(
long max_duration) const
{
return impl_.wait_duration_msec(max_duration);
}
long timer_queue<time_traits<boost::posix_time::ptime> >::wait_duration_usec(
long max_duration) const
{
return impl_.wait_duration_usec(max_duration);
}
void timer_queue<time_traits<boost::posix_time::ptime> >::get_ready_timers(
op_queue<operation>& ops)
{
impl_.get_ready_timers(ops);
}
void timer_queue<time_traits<boost::posix_time::ptime> >::get_all_timers(
op_queue<operation>& ops)
{
impl_.get_all_timers(ops);
}
std::size_t timer_queue<time_traits<boost::posix_time::ptime> >::cancel_timer(
per_timer_data& timer, op_queue<operation>& ops, std::size_t max_cancelled)
{
return impl_.cancel_timer(timer, ops, max_cancelled);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_ASIO_HEADER_ONLY)
#endif // BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_IPP

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//
// detail/impl/timer_queue_set.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
#define BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/asio/detail/timer_queue_set.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
timer_queue_set::timer_queue_set()
: first_(0)
{
}
void timer_queue_set::insert(timer_queue_base* q)
{
q->next_ = first_;
first_ = q;
}
void timer_queue_set::erase(timer_queue_base* q)
{
if (first_)
{
if (q == first_)
{
first_ = q->next_;
q->next_ = 0;
return;
}
for (timer_queue_base* p = first_; p->next_; p = p->next_)
{
if (p->next_ == q)
{
p->next_ = q->next_;
q->next_ = 0;
return;
}
}
}
}
bool timer_queue_set::all_empty() const
{
for (timer_queue_base* p = first_; p; p = p->next_)
if (!p->empty())
return false;
return true;
}
long timer_queue_set::wait_duration_msec(long max_duration) const
{
long min_duration = max_duration;
for (timer_queue_base* p = first_; p; p = p->next_)
min_duration = p->wait_duration_msec(min_duration);
return min_duration;
}
long timer_queue_set::wait_duration_usec(long max_duration) const
{
long min_duration = max_duration;
for (timer_queue_base* p = first_; p; p = p->next_)
min_duration = p->wait_duration_usec(min_duration);
return min_duration;
}
void timer_queue_set::get_ready_timers(op_queue<operation>& ops)
{
for (timer_queue_base* p = first_; p; p = p->next_)
p->get_ready_timers(ops);
}
void timer_queue_set::get_all_timers(op_queue<operation>& ops)
{
for (timer_queue_base* p = first_; p; p = p->next_)
p->get_all_timers(ops);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP

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//
// detail/win_event.ipp
// ~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_EVENT_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_EVENT_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS)
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/win_event.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
win_event::win_event()
: event_(::CreateEvent(0, true, false, 0))
{
if (!event_)
{
DWORD last_error = ::GetLastError();
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "event");
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_EVENT_IPP

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//
// detail/impl/win_iocp_handle_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_HANDLE_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_HANDLE_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP)
#include <boost/asio/detail/win_iocp_handle_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class win_iocp_handle_service::overlapped_wrapper
: public OVERLAPPED
{
public:
explicit overlapped_wrapper(boost::system::error_code& ec)
{
Internal = 0;
InternalHigh = 0;
Offset = 0;
OffsetHigh = 0;
// Create a non-signalled manual-reset event, for GetOverlappedResult.
hEvent = ::CreateEvent(0, TRUE, FALSE, 0);
if (hEvent)
{
// As documented in GetQueuedCompletionStatus, setting the low order
// bit of this event prevents our synchronous writes from being treated
// as completion port events.
*reinterpret_cast<DWORD_PTR*>(&hEvent) |= 1;
}
else
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
}
~overlapped_wrapper()
{
if (hEvent)
{
::CloseHandle(hEvent);
}
}
};
win_iocp_handle_service::win_iocp_handle_service(
boost::asio::io_service& io_service)
: iocp_service_(boost::asio::use_service<win_iocp_io_service>(io_service)),
mutex_(),
impl_list_(0)
{
}
void win_iocp_handle_service::shutdown_service()
{
// Close all implementations, causing all operations to complete.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
implementation_type* impl = impl_list_;
while (impl)
{
close_for_destruction(*impl);
impl = impl->next_;
}
}
void win_iocp_handle_service::construct(
win_iocp_handle_service::implementation_type& impl)
{
impl.handle_ = INVALID_HANDLE_VALUE;
impl.safe_cancellation_thread_id_ = 0;
// Insert implementation into linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
impl.next_ = impl_list_;
impl.prev_ = 0;
if (impl_list_)
impl_list_->prev_ = &impl;
impl_list_ = &impl;
}
void win_iocp_handle_service::move_construct(
win_iocp_handle_service::implementation_type& impl,
win_iocp_handle_service::implementation_type& other_impl)
{
impl.handle_ = other_impl.handle_;
other_impl.handle_ = INVALID_HANDLE_VALUE;
impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
other_impl.safe_cancellation_thread_id_ = 0;
// Insert implementation into linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
impl.next_ = impl_list_;
impl.prev_ = 0;
if (impl_list_)
impl_list_->prev_ = &impl;
impl_list_ = &impl;
}
void win_iocp_handle_service::move_assign(
win_iocp_handle_service::implementation_type& impl,
win_iocp_handle_service& other_service,
win_iocp_handle_service::implementation_type& other_impl)
{
close_for_destruction(impl);
if (this != &other_service)
{
// Remove implementation from linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (impl_list_ == &impl)
impl_list_ = impl.next_;
if (impl.prev_)
impl.prev_->next_ = impl.next_;
if (impl.next_)
impl.next_->prev_= impl.prev_;
impl.next_ = 0;
impl.prev_ = 0;
}
impl.handle_ = other_impl.handle_;
other_impl.handle_ = INVALID_HANDLE_VALUE;
impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
other_impl.safe_cancellation_thread_id_ = 0;
if (this != &other_service)
{
// Insert implementation into linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(other_service.mutex_);
impl.next_ = other_service.impl_list_;
impl.prev_ = 0;
if (other_service.impl_list_)
other_service.impl_list_->prev_ = &impl;
other_service.impl_list_ = &impl;
}
}
void win_iocp_handle_service::destroy(
win_iocp_handle_service::implementation_type& impl)
{
close_for_destruction(impl);
// Remove implementation from linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (impl_list_ == &impl)
impl_list_ = impl.next_;
if (impl.prev_)
impl.prev_->next_ = impl.next_;
if (impl.next_)
impl.next_->prev_= impl.prev_;
impl.next_ = 0;
impl.prev_ = 0;
}
boost::system::error_code win_iocp_handle_service::assign(
win_iocp_handle_service::implementation_type& impl,
const native_handle_type& handle, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
if (iocp_service_.register_handle(handle, ec))
return ec;
impl.handle_ = handle;
ec = boost::system::error_code();
return ec;
}
boost::system::error_code win_iocp_handle_service::close(
win_iocp_handle_service::implementation_type& impl,
boost::system::error_code& ec)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("handle", &impl, "close"));
if (!::CloseHandle(impl.handle_))
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
else
{
ec = boost::system::error_code();
}
impl.handle_ = INVALID_HANDLE_VALUE;
impl.safe_cancellation_thread_id_ = 0;
}
else
{
ec = boost::system::error_code();
}
return ec;
}
boost::system::error_code win_iocp_handle_service::cancel(
win_iocp_handle_service::implementation_type& impl,
boost::system::error_code& ec)
{
if (!is_open(impl))
{
ec = boost::asio::error::bad_descriptor;
return ec;
}
BOOST_ASIO_HANDLER_OPERATION(("handle", &impl, "cancel"));
if (FARPROC cancel_io_ex_ptr = ::GetProcAddress(
::GetModuleHandleA("KERNEL32"), "CancelIoEx"))
{
// The version of Windows supports cancellation from any thread.
typedef BOOL (WINAPI* cancel_io_ex_t)(HANDLE, LPOVERLAPPED);
cancel_io_ex_t cancel_io_ex = (cancel_io_ex_t)cancel_io_ex_ptr;
if (!cancel_io_ex(impl.handle_, 0))
{
DWORD last_error = ::GetLastError();
if (last_error == ERROR_NOT_FOUND)
{
// ERROR_NOT_FOUND means that there were no operations to be
// cancelled. We swallow this error to match the behaviour on other
// platforms.
ec = boost::system::error_code();
}
else
{
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
}
else
{
ec = boost::system::error_code();
}
}
else if (impl.safe_cancellation_thread_id_ == 0)
{
// No operations have been started, so there's nothing to cancel.
ec = boost::system::error_code();
}
else if (impl.safe_cancellation_thread_id_ == ::GetCurrentThreadId())
{
// Asynchronous operations have been started from the current thread only,
// so it is safe to try to cancel them using CancelIo.
if (!::CancelIo(impl.handle_))
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
else
{
ec = boost::system::error_code();
}
}
else
{
// Asynchronous operations have been started from more than one thread,
// so cancellation is not safe.
ec = boost::asio::error::operation_not_supported;
}
return ec;
}
size_t win_iocp_handle_service::do_write(
win_iocp_handle_service::implementation_type& impl, boost::uint64_t offset,
const boost::asio::const_buffer& buffer, boost::system::error_code& ec)
{
if (!is_open(impl))
{
ec = boost::asio::error::bad_descriptor;
return 0;
}
// A request to write 0 bytes on a handle is a no-op.
if (boost::asio::buffer_size(buffer) == 0)
{
ec = boost::system::error_code();
return 0;
}
overlapped_wrapper overlapped(ec);
if (ec)
{
return 0;
}
// Write the data.
overlapped.Offset = offset & 0xFFFFFFFF;
overlapped.OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
BOOL ok = ::WriteFile(impl.handle_,
boost::asio::buffer_cast<LPCVOID>(buffer),
static_cast<DWORD>(boost::asio::buffer_size(buffer)), 0, &overlapped);
if (!ok)
{
DWORD last_error = ::GetLastError();
if (last_error != ERROR_IO_PENDING)
{
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return 0;
}
}
// Wait for the operation to complete.
DWORD bytes_transferred = 0;
ok = ::GetOverlappedResult(impl.handle_,
&overlapped, &bytes_transferred, TRUE);
if (!ok)
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return 0;
}
ec = boost::system::error_code();
return bytes_transferred;
}
void win_iocp_handle_service::start_write_op(
win_iocp_handle_service::implementation_type& impl, boost::uint64_t offset,
const boost::asio::const_buffer& buffer, operation* op)
{
update_cancellation_thread_id(impl);
iocp_service_.work_started();
if (!is_open(impl))
{
iocp_service_.on_completion(op, boost::asio::error::bad_descriptor);
}
else if (boost::asio::buffer_size(buffer) == 0)
{
// A request to write 0 bytes on a handle is a no-op.
iocp_service_.on_completion(op);
}
else
{
DWORD bytes_transferred = 0;
op->Offset = offset & 0xFFFFFFFF;
op->OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
BOOL ok = ::WriteFile(impl.handle_,
boost::asio::buffer_cast<LPCVOID>(buffer),
static_cast<DWORD>(boost::asio::buffer_size(buffer)),
&bytes_transferred, op);
DWORD last_error = ::GetLastError();
if (!ok && last_error != ERROR_IO_PENDING
&& last_error != ERROR_MORE_DATA)
{
iocp_service_.on_completion(op, last_error, bytes_transferred);
}
else
{
iocp_service_.on_pending(op);
}
}
}
size_t win_iocp_handle_service::do_read(
win_iocp_handle_service::implementation_type& impl, boost::uint64_t offset,
const boost::asio::mutable_buffer& buffer, boost::system::error_code& ec)
{
if (!is_open(impl))
{
ec = boost::asio::error::bad_descriptor;
return 0;
}
// A request to read 0 bytes on a stream handle is a no-op.
if (boost::asio::buffer_size(buffer) == 0)
{
ec = boost::system::error_code();
return 0;
}
overlapped_wrapper overlapped(ec);
if (ec)
{
return 0;
}
// Read some data.
overlapped.Offset = offset & 0xFFFFFFFF;
overlapped.OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
BOOL ok = ::ReadFile(impl.handle_,
boost::asio::buffer_cast<LPVOID>(buffer),
static_cast<DWORD>(boost::asio::buffer_size(buffer)), 0, &overlapped);
if (!ok)
{
DWORD last_error = ::GetLastError();
if (last_error != ERROR_IO_PENDING && last_error != ERROR_MORE_DATA)
{
if (last_error == ERROR_HANDLE_EOF)
{
ec = boost::asio::error::eof;
}
else
{
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
return 0;
}
}
// Wait for the operation to complete.
DWORD bytes_transferred = 0;
ok = ::GetOverlappedResult(impl.handle_,
&overlapped, &bytes_transferred, TRUE);
if (!ok)
{
DWORD last_error = ::GetLastError();
if (last_error == ERROR_HANDLE_EOF)
{
ec = boost::asio::error::eof;
}
else
{
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
return 0;
}
ec = boost::system::error_code();
return bytes_transferred;
}
void win_iocp_handle_service::start_read_op(
win_iocp_handle_service::implementation_type& impl, boost::uint64_t offset,
const boost::asio::mutable_buffer& buffer, operation* op)
{
update_cancellation_thread_id(impl);
iocp_service_.work_started();
if (!is_open(impl))
{
iocp_service_.on_completion(op, boost::asio::error::bad_descriptor);
}
else if (boost::asio::buffer_size(buffer) == 0)
{
// A request to read 0 bytes on a handle is a no-op.
iocp_service_.on_completion(op);
}
else
{
DWORD bytes_transferred = 0;
op->Offset = offset & 0xFFFFFFFF;
op->OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
BOOL ok = ::ReadFile(impl.handle_,
boost::asio::buffer_cast<LPVOID>(buffer),
static_cast<DWORD>(boost::asio::buffer_size(buffer)),
&bytes_transferred, op);
DWORD last_error = ::GetLastError();
if (!ok && last_error != ERROR_IO_PENDING
&& last_error != ERROR_MORE_DATA)
{
iocp_service_.on_completion(op, last_error, bytes_transferred);
}
else
{
iocp_service_.on_pending(op);
}
}
}
void win_iocp_handle_service::update_cancellation_thread_id(
win_iocp_handle_service::implementation_type& impl)
{
if (impl.safe_cancellation_thread_id_ == 0)
impl.safe_cancellation_thread_id_ = ::GetCurrentThreadId();
else if (impl.safe_cancellation_thread_id_ != ::GetCurrentThreadId())
impl.safe_cancellation_thread_id_ = ~DWORD(0);
}
void win_iocp_handle_service::close_for_destruction(implementation_type& impl)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("handle", &impl, "close"));
::CloseHandle(impl.handle_);
impl.handle_ = INVALID_HANDLE_VALUE;
impl.safe_cancellation_thread_id_ = 0;
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_HANDLE_SERVICE_IPP

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//
// detail/impl/win_iocp_io_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_HPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP)
#include <boost/asio/detail/completion_handler.hpp>
#include <boost/asio/detail/fenced_block.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Handler>
void win_iocp_io_service::dispatch(Handler handler)
{
if (call_stack<win_iocp_io_service>::contains(this))
{
fenced_block b(fenced_block::full);
boost_asio_handler_invoke_helpers::invoke(handler, handler);
}
else
{
// Allocate and construct an operation to wrap the handler.
typedef completion_handler<Handler> op;
typename op::ptr p = { boost::addressof(handler),
boost_asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(handler);
BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "dispatch"));
post_immediate_completion(p.p);
p.v = p.p = 0;
}
}
template <typename Handler>
void win_iocp_io_service::post(Handler handler)
{
// Allocate and construct an operation to wrap the handler.
typedef completion_handler<Handler> op;
typename op::ptr p = { boost::addressof(handler),
boost_asio_handler_alloc_helpers::allocate(
sizeof(op), handler), 0 };
p.p = new (p.v) op(handler);
BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "post"));
post_immediate_completion(p.p);
p.v = p.p = 0;
}
template <typename Time_Traits>
void win_iocp_io_service::add_timer_queue(
timer_queue<Time_Traits>& queue)
{
do_add_timer_queue(queue);
}
template <typename Time_Traits>
void win_iocp_io_service::remove_timer_queue(
timer_queue<Time_Traits>& queue)
{
do_remove_timer_queue(queue);
}
template <typename Time_Traits>
void win_iocp_io_service::schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op)
{
// If the service has been shut down we silently discard the timer.
if (::InterlockedExchangeAdd(&shutdown_, 0) != 0)
{
post_immediate_completion(op);
return;
}
mutex::scoped_lock lock(dispatch_mutex_);
bool earliest = queue.enqueue_timer(time, timer, op);
work_started();
if (earliest)
update_timeout();
}
template <typename Time_Traits>
std::size_t win_iocp_io_service::cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled)
{
// If the service has been shut down we silently ignore the cancellation.
if (::InterlockedExchangeAdd(&shutdown_, 0) != 0)
return 0;
mutex::scoped_lock lock(dispatch_mutex_);
op_queue<win_iocp_operation> ops;
std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
post_deferred_completions(ops);
return n;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_HPP

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//
// detail/impl/win_iocp_io_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP)
#include <boost/limits.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/io_service.hpp>
#include <boost/asio/detail/handler_alloc_helpers.hpp>
#include <boost/asio/detail/handler_invoke_helpers.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/win_iocp_io_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct win_iocp_io_service::work_finished_on_block_exit
{
~work_finished_on_block_exit()
{
io_service_->work_finished();
}
win_iocp_io_service* io_service_;
};
struct win_iocp_io_service::timer_thread_function
{
void operator()()
{
while (::InterlockedExchangeAdd(&io_service_->shutdown_, 0) == 0)
{
if (::WaitForSingleObject(io_service_->waitable_timer_.handle,
INFINITE) == WAIT_OBJECT_0)
{
::InterlockedExchange(&io_service_->dispatch_required_, 1);
::PostQueuedCompletionStatus(io_service_->iocp_.handle,
0, wake_for_dispatch, 0);
}
}
}
win_iocp_io_service* io_service_;
};
win_iocp_io_service::win_iocp_io_service(
boost::asio::io_service& io_service, size_t concurrency_hint)
: boost::asio::detail::service_base<win_iocp_io_service>(io_service),
iocp_(),
outstanding_work_(0),
stopped_(0),
shutdown_(0),
dispatch_required_(0)
{
BOOST_ASIO_HANDLER_TRACKING_INIT;
iocp_.handle = ::CreateIoCompletionPort(INVALID_HANDLE_VALUE, 0, 0,
static_cast<DWORD>((std::min<size_t>)(concurrency_hint, DWORD(~0))));
if (!iocp_.handle)
{
DWORD last_error = ::GetLastError();
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "iocp");
}
}
void win_iocp_io_service::shutdown_service()
{
::InterlockedExchange(&shutdown_, 1);
if (timer_thread_.get())
{
LARGE_INTEGER timeout;
timeout.QuadPart = 1;
::SetWaitableTimer(waitable_timer_.handle, &timeout, 1, 0, 0, FALSE);
}
while (::InterlockedExchangeAdd(&outstanding_work_, 0) > 0)
{
op_queue<win_iocp_operation> ops;
timer_queues_.get_all_timers(ops);
ops.push(completed_ops_);
if (!ops.empty())
{
while (win_iocp_operation* op = ops.front())
{
ops.pop();
::InterlockedDecrement(&outstanding_work_);
op->destroy();
}
}
else
{
DWORD bytes_transferred = 0;
dword_ptr_t completion_key = 0;
LPOVERLAPPED overlapped = 0;
::GetQueuedCompletionStatus(iocp_.handle, &bytes_transferred,
&completion_key, &overlapped, gqcs_timeout);
if (overlapped)
{
::InterlockedDecrement(&outstanding_work_);
static_cast<win_iocp_operation*>(overlapped)->destroy();
}
}
}
if (timer_thread_.get())
timer_thread_->join();
}
boost::system::error_code win_iocp_io_service::register_handle(
HANDLE handle, boost::system::error_code& ec)
{
if (::CreateIoCompletionPort(handle, iocp_.handle, 0, 0) == 0)
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
else
{
ec = boost::system::error_code();
}
return ec;
}
size_t win_iocp_io_service::run(boost::system::error_code& ec)
{
if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
{
stop();
ec = boost::system::error_code();
return 0;
}
call_stack<win_iocp_io_service>::context ctx(this);
size_t n = 0;
while (do_one(true, ec))
if (n != (std::numeric_limits<size_t>::max)())
++n;
return n;
}
size_t win_iocp_io_service::run_one(boost::system::error_code& ec)
{
if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
{
stop();
ec = boost::system::error_code();
return 0;
}
call_stack<win_iocp_io_service>::context ctx(this);
return do_one(true, ec);
}
size_t win_iocp_io_service::poll(boost::system::error_code& ec)
{
if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
{
stop();
ec = boost::system::error_code();
return 0;
}
call_stack<win_iocp_io_service>::context ctx(this);
size_t n = 0;
while (do_one(false, ec))
if (n != (std::numeric_limits<size_t>::max)())
++n;
return n;
}
size_t win_iocp_io_service::poll_one(boost::system::error_code& ec)
{
if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
{
stop();
ec = boost::system::error_code();
return 0;
}
call_stack<win_iocp_io_service>::context ctx(this);
return do_one(false, ec);
}
void win_iocp_io_service::stop()
{
if (::InterlockedExchange(&stopped_, 1) == 0)
{
if (!::PostQueuedCompletionStatus(iocp_.handle, 0, 0, 0))
{
DWORD last_error = ::GetLastError();
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "pqcs");
}
}
}
void win_iocp_io_service::post_deferred_completion(win_iocp_operation* op)
{
// Flag the operation as ready.
op->ready_ = 1;
// Enqueue the operation on the I/O completion port.
if (!::PostQueuedCompletionStatus(iocp_.handle,
0, overlapped_contains_result, op))
{
// Out of resources. Put on completed queue instead.
mutex::scoped_lock lock(dispatch_mutex_);
completed_ops_.push(op);
::InterlockedExchange(&dispatch_required_, 1);
}
}
void win_iocp_io_service::post_deferred_completions(
op_queue<win_iocp_operation>& ops)
{
while (win_iocp_operation* op = ops.front())
{
ops.pop();
// Flag the operation as ready.
op->ready_ = 1;
// Enqueue the operation on the I/O completion port.
if (!::PostQueuedCompletionStatus(iocp_.handle,
0, overlapped_contains_result, op))
{
// Out of resources. Put on completed queue instead.
mutex::scoped_lock lock(dispatch_mutex_);
completed_ops_.push(op);
completed_ops_.push(ops);
::InterlockedExchange(&dispatch_required_, 1);
}
}
}
void win_iocp_io_service::abandon_operations(
op_queue<win_iocp_operation>& ops)
{
while (win_iocp_operation* op = ops.front())
{
ops.pop();
::InterlockedDecrement(&outstanding_work_);
op->destroy();
}
}
void win_iocp_io_service::on_pending(win_iocp_operation* op)
{
if (::InterlockedCompareExchange(&op->ready_, 1, 0) == 1)
{
// Enqueue the operation on the I/O completion port.
if (!::PostQueuedCompletionStatus(iocp_.handle,
0, overlapped_contains_result, op))
{
// Out of resources. Put on completed queue instead.
mutex::scoped_lock lock(dispatch_mutex_);
completed_ops_.push(op);
::InterlockedExchange(&dispatch_required_, 1);
}
}
}
void win_iocp_io_service::on_completion(win_iocp_operation* op,
DWORD last_error, DWORD bytes_transferred)
{
// Flag that the operation is ready for invocation.
op->ready_ = 1;
// Store results in the OVERLAPPED structure.
op->Internal = reinterpret_cast<ulong_ptr_t>(
&boost::asio::error::get_system_category());
op->Offset = last_error;
op->OffsetHigh = bytes_transferred;
// Enqueue the operation on the I/O completion port.
if (!::PostQueuedCompletionStatus(iocp_.handle,
0, overlapped_contains_result, op))
{
// Out of resources. Put on completed queue instead.
mutex::scoped_lock lock(dispatch_mutex_);
completed_ops_.push(op);
::InterlockedExchange(&dispatch_required_, 1);
}
}
void win_iocp_io_service::on_completion(win_iocp_operation* op,
const boost::system::error_code& ec, DWORD bytes_transferred)
{
// Flag that the operation is ready for invocation.
op->ready_ = 1;
// Store results in the OVERLAPPED structure.
op->Internal = reinterpret_cast<ulong_ptr_t>(&ec.category());
op->Offset = ec.value();
op->OffsetHigh = bytes_transferred;
// Enqueue the operation on the I/O completion port.
if (!::PostQueuedCompletionStatus(iocp_.handle,
0, overlapped_contains_result, op))
{
// Out of resources. Put on completed queue instead.
mutex::scoped_lock lock(dispatch_mutex_);
completed_ops_.push(op);
::InterlockedExchange(&dispatch_required_, 1);
}
}
size_t win_iocp_io_service::do_one(bool block, boost::system::error_code& ec)
{
for (;;)
{
// Try to acquire responsibility for dispatching timers and completed ops.
if (::InterlockedCompareExchange(&dispatch_required_, 0, 1) == 1)
{
mutex::scoped_lock lock(dispatch_mutex_);
// Dispatch pending timers and operations.
op_queue<win_iocp_operation> ops;
ops.push(completed_ops_);
timer_queues_.get_ready_timers(ops);
post_deferred_completions(ops);
update_timeout();
}
// Get the next operation from the queue.
DWORD bytes_transferred = 0;
dword_ptr_t completion_key = 0;
LPOVERLAPPED overlapped = 0;
::SetLastError(0);
BOOL ok = ::GetQueuedCompletionStatus(iocp_.handle, &bytes_transferred,
&completion_key, &overlapped, block ? gqcs_timeout : 0);
DWORD last_error = ::GetLastError();
if (overlapped)
{
win_iocp_operation* op = static_cast<win_iocp_operation*>(overlapped);
boost::system::error_code result_ec(last_error,
boost::asio::error::get_system_category());
// We may have been passed the last_error and bytes_transferred in the
// OVERLAPPED structure itself.
if (completion_key == overlapped_contains_result)
{
result_ec = boost::system::error_code(static_cast<int>(op->Offset),
*reinterpret_cast<boost::system::error_category*>(op->Internal));
bytes_transferred = op->OffsetHigh;
}
// Otherwise ensure any result has been saved into the OVERLAPPED
// structure.
else
{
op->Internal = reinterpret_cast<ulong_ptr_t>(&result_ec.category());
op->Offset = result_ec.value();
op->OffsetHigh = bytes_transferred;
}
// Dispatch the operation only if ready. The operation may not be ready
// if the initiating function (e.g. a call to WSARecv) has not yet
// returned. This is because the initiating function still wants access
// to the operation's OVERLAPPED structure.
if (::InterlockedCompareExchange(&op->ready_, 1, 0) == 1)
{
// Ensure the count of outstanding work is decremented on block exit.
work_finished_on_block_exit on_exit = { this };
(void)on_exit;
op->complete(*this, result_ec, bytes_transferred);
ec = boost::system::error_code();
return 1;
}
}
else if (!ok)
{
if (last_error != WAIT_TIMEOUT)
{
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return 0;
}
// If we're not polling we need to keep going until we get a real handler.
if (block)
continue;
ec = boost::system::error_code();
return 0;
}
else if (completion_key == wake_for_dispatch)
{
// We have been woken up to try to acquire responsibility for dispatching
// timers and completed operations.
}
else
{
// The stopped_ flag is always checked to ensure that any leftover
// interrupts from a previous run invocation are ignored.
if (::InterlockedExchangeAdd(&stopped_, 0) != 0)
{
// Wake up next thread that is blocked on GetQueuedCompletionStatus.
if (!::PostQueuedCompletionStatus(iocp_.handle, 0, 0, 0))
{
last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return 0;
}
ec = boost::system::error_code();
return 0;
}
}
}
}
void win_iocp_io_service::do_add_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(dispatch_mutex_);
timer_queues_.insert(&queue);
if (!waitable_timer_.handle)
{
waitable_timer_.handle = ::CreateWaitableTimer(0, FALSE, 0);
if (waitable_timer_.handle == 0)
{
DWORD last_error = ::GetLastError();
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "timer");
}
LARGE_INTEGER timeout;
timeout.QuadPart = -max_timeout_usec;
timeout.QuadPart *= 10;
::SetWaitableTimer(waitable_timer_.handle,
&timeout, max_timeout_msec, 0, 0, FALSE);
}
if (!timer_thread_.get())
{
timer_thread_function thread_function = { this };
timer_thread_.reset(new thread(thread_function, 65536));
}
}
void win_iocp_io_service::do_remove_timer_queue(timer_queue_base& queue)
{
mutex::scoped_lock lock(dispatch_mutex_);
timer_queues_.erase(&queue);
}
void win_iocp_io_service::update_timeout()
{
if (timer_thread_.get())
{
// There's no point updating the waitable timer if the new timeout period
// exceeds the maximum timeout. In that case, we might as well wait for the
// existing period of the timer to expire.
long timeout_usec = timer_queues_.wait_duration_usec(max_timeout_usec);
if (timeout_usec < max_timeout_usec)
{
LARGE_INTEGER timeout;
timeout.QuadPart = -timeout_usec;
timeout.QuadPart *= 10;
::SetWaitableTimer(waitable_timer_.handle,
&timeout, max_timeout_msec, 0, 0, FALSE);
}
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_IO_SERVICE_IPP

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//
// detail/impl/win_iocp_serial_port_service.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_SERIAL_PORT_SERVICE_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_SERIAL_PORT_SERVICE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP) && defined(BOOST_ASIO_HAS_SERIAL_PORT)
#include <cstring>
#include <boost/asio/detail/win_iocp_serial_port_service.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
win_iocp_serial_port_service::win_iocp_serial_port_service(
boost::asio::io_service& io_service)
: handle_service_(io_service)
{
}
void win_iocp_serial_port_service::shutdown_service()
{
}
boost::system::error_code win_iocp_serial_port_service::open(
win_iocp_serial_port_service::implementation_type& impl,
const std::string& device, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
// For convenience, add a leading \\.\ sequence if not already present.
std::string name = (device[0] == '\\') ? device : "\\\\.\\" + device;
// Open a handle to the serial port.
::HANDLE handle = ::CreateFileA(name.c_str(),
GENERIC_READ | GENERIC_WRITE, 0, 0,
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
if (handle == INVALID_HANDLE_VALUE)
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return ec;
}
// Determine the initial serial port parameters.
using namespace std; // For memset.
::DCB dcb;
memset(&dcb, 0, sizeof(DCB));
dcb.DCBlength = sizeof(DCB);
if (!::GetCommState(handle, &dcb))
{
DWORD last_error = ::GetLastError();
::CloseHandle(handle);
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return ec;
}
// Set some default serial port parameters. This implementation does not
// support changing these, so they might as well be in a known state.
dcb.fBinary = TRUE; // Win32 only supports binary mode.
dcb.fDsrSensitivity = FALSE;
dcb.fNull = FALSE; // Do not ignore NULL characters.
dcb.fAbortOnError = FALSE; // Ignore serial framing errors.
if (!::SetCommState(handle, &dcb))
{
DWORD last_error = ::GetLastError();
::CloseHandle(handle);
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return ec;
}
// Set up timeouts so that the serial port will behave similarly to a
// network socket. Reads wait for at least one byte, then return with
// whatever they have. Writes return once everything is out the door.
::COMMTIMEOUTS timeouts;
timeouts.ReadIntervalTimeout = 1;
timeouts.ReadTotalTimeoutMultiplier = 0;
timeouts.ReadTotalTimeoutConstant = 0;
timeouts.WriteTotalTimeoutMultiplier = 0;
timeouts.WriteTotalTimeoutConstant = 0;
if (!::SetCommTimeouts(handle, &timeouts))
{
DWORD last_error = ::GetLastError();
::CloseHandle(handle);
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return ec;
}
// We're done. Take ownership of the serial port handle.
if (handle_service_.assign(impl, handle, ec))
::CloseHandle(handle);
return ec;
}
boost::system::error_code win_iocp_serial_port_service::do_set_option(
win_iocp_serial_port_service::implementation_type& impl,
win_iocp_serial_port_service::store_function_type store,
const void* option, boost::system::error_code& ec)
{
using namespace std; // For memcpy.
::DCB dcb;
memset(&dcb, 0, sizeof(DCB));
dcb.DCBlength = sizeof(DCB);
if (!::GetCommState(handle_service_.native_handle(impl), &dcb))
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return ec;
}
if (store(option, dcb, ec))
return ec;
if (!::SetCommState(handle_service_.native_handle(impl), &dcb))
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return ec;
}
ec = boost::system::error_code();
return ec;
}
boost::system::error_code win_iocp_serial_port_service::do_get_option(
const win_iocp_serial_port_service::implementation_type& impl,
win_iocp_serial_port_service::load_function_type load,
void* option, boost::system::error_code& ec) const
{
using namespace std; // For memset.
::DCB dcb;
memset(&dcb, 0, sizeof(DCB));
dcb.DCBlength = sizeof(DCB);
if (!::GetCommState(handle_service_.native_handle(impl), &dcb))
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
return ec;
}
return load(option, dcb, ec);
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_IOCP) && defined(BOOST_ASIO_HAS_SERIAL_PORT)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_SERIAL_PORT_SERVICE_IPP

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//
// detail/impl/win_iocp_socket_service_base.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_SOCKET_SERVICE_BASE_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_SOCKET_SERVICE_BASE_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP)
#include <boost/asio/detail/win_iocp_socket_service_base.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
win_iocp_socket_service_base::win_iocp_socket_service_base(
boost::asio::io_service& io_service)
: io_service_(io_service),
iocp_service_(use_service<win_iocp_io_service>(io_service)),
reactor_(0),
mutex_(),
impl_list_(0)
{
}
void win_iocp_socket_service_base::shutdown_service()
{
// Close all implementations, causing all operations to complete.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
base_implementation_type* impl = impl_list_;
while (impl)
{
boost::system::error_code ignored_ec;
close_for_destruction(*impl);
impl = impl->next_;
}
}
void win_iocp_socket_service_base::construct(
win_iocp_socket_service_base::base_implementation_type& impl)
{
impl.socket_ = invalid_socket;
impl.state_ = 0;
impl.cancel_token_.reset();
#if defined(BOOST_ASIO_ENABLE_CANCELIO)
impl.safe_cancellation_thread_id_ = 0;
#endif // defined(BOOST_ASIO_ENABLE_CANCELIO)
// Insert implementation into linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
impl.next_ = impl_list_;
impl.prev_ = 0;
if (impl_list_)
impl_list_->prev_ = &impl;
impl_list_ = &impl;
}
void win_iocp_socket_service_base::base_move_construct(
win_iocp_socket_service_base::base_implementation_type& impl,
win_iocp_socket_service_base::base_implementation_type& other_impl)
{
impl.socket_ = other_impl.socket_;
other_impl.socket_ = invalid_socket;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
impl.cancel_token_ = other_impl.cancel_token_;
other_impl.cancel_token_.reset();
#if defined(BOOST_ASIO_ENABLE_CANCELIO)
impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
other_impl.safe_cancellation_thread_id_ = 0;
#endif // defined(BOOST_ASIO_ENABLE_CANCELIO)
// Insert implementation into linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
impl.next_ = impl_list_;
impl.prev_ = 0;
if (impl_list_)
impl_list_->prev_ = &impl;
impl_list_ = &impl;
}
void win_iocp_socket_service_base::base_move_assign(
win_iocp_socket_service_base::base_implementation_type& impl,
win_iocp_socket_service_base& other_service,
win_iocp_socket_service_base::base_implementation_type& other_impl)
{
close_for_destruction(impl);
if (this != &other_service)
{
// Remove implementation from linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (impl_list_ == &impl)
impl_list_ = impl.next_;
if (impl.prev_)
impl.prev_->next_ = impl.next_;
if (impl.next_)
impl.next_->prev_= impl.prev_;
impl.next_ = 0;
impl.prev_ = 0;
}
impl.socket_ = other_impl.socket_;
other_impl.socket_ = invalid_socket;
impl.state_ = other_impl.state_;
other_impl.state_ = 0;
impl.cancel_token_ = other_impl.cancel_token_;
other_impl.cancel_token_.reset();
#if defined(BOOST_ASIO_ENABLE_CANCELIO)
impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
other_impl.safe_cancellation_thread_id_ = 0;
#endif // defined(BOOST_ASIO_ENABLE_CANCELIO)
if (this != &other_service)
{
// Insert implementation into linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(other_service.mutex_);
impl.next_ = other_service.impl_list_;
impl.prev_ = 0;
if (other_service.impl_list_)
other_service.impl_list_->prev_ = &impl;
other_service.impl_list_ = &impl;
}
}
void win_iocp_socket_service_base::destroy(
win_iocp_socket_service_base::base_implementation_type& impl)
{
close_for_destruction(impl);
// Remove implementation from linked list of all implementations.
boost::asio::detail::mutex::scoped_lock lock(mutex_);
if (impl_list_ == &impl)
impl_list_ = impl.next_;
if (impl.prev_)
impl.prev_->next_ = impl.next_;
if (impl.next_)
impl.next_->prev_= impl.prev_;
impl.next_ = 0;
impl.prev_ = 0;
}
boost::system::error_code win_iocp_socket_service_base::close(
win_iocp_socket_service_base::base_implementation_type& impl,
boost::system::error_code& ec)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close"));
// Check if the reactor was created, in which case we need to close the
// socket on the reactor as well to cancel any operations that might be
// running there.
reactor* r = static_cast<reactor*>(
interlocked_compare_exchange_pointer(
reinterpret_cast<void**>(&reactor_), 0, 0));
if (r)
r->deregister_descriptor(impl.socket_, impl.reactor_data_, true);
}
socket_ops::close(impl.socket_, impl.state_, false, ec);
impl.socket_ = invalid_socket;
impl.state_ = 0;
impl.cancel_token_.reset();
#if defined(BOOST_ASIO_ENABLE_CANCELIO)
impl.safe_cancellation_thread_id_ = 0;
#endif // defined(BOOST_ASIO_ENABLE_CANCELIO)
return ec;
}
boost::system::error_code win_iocp_socket_service_base::cancel(
win_iocp_socket_service_base::base_implementation_type& impl,
boost::system::error_code& ec)
{
if (!is_open(impl))
{
ec = boost::asio::error::bad_descriptor;
return ec;
}
BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "cancel"));
if (FARPROC cancel_io_ex_ptr = ::GetProcAddress(
::GetModuleHandleA("KERNEL32"), "CancelIoEx"))
{
// The version of Windows supports cancellation from any thread.
typedef BOOL (WINAPI* cancel_io_ex_t)(HANDLE, LPOVERLAPPED);
cancel_io_ex_t cancel_io_ex = (cancel_io_ex_t)cancel_io_ex_ptr;
socket_type sock = impl.socket_;
HANDLE sock_as_handle = reinterpret_cast<HANDLE>(sock);
if (!cancel_io_ex(sock_as_handle, 0))
{
DWORD last_error = ::GetLastError();
if (last_error == ERROR_NOT_FOUND)
{
// ERROR_NOT_FOUND means that there were no operations to be
// cancelled. We swallow this error to match the behaviour on other
// platforms.
ec = boost::system::error_code();
}
else
{
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
}
else
{
ec = boost::system::error_code();
}
}
#if defined(BOOST_ASIO_ENABLE_CANCELIO)
else if (impl.safe_cancellation_thread_id_ == 0)
{
// No operations have been started, so there's nothing to cancel.
ec = boost::system::error_code();
}
else if (impl.safe_cancellation_thread_id_ == ::GetCurrentThreadId())
{
// Asynchronous operations have been started from the current thread only,
// so it is safe to try to cancel them using CancelIo.
socket_type sock = impl.socket_;
HANDLE sock_as_handle = reinterpret_cast<HANDLE>(sock);
if (!::CancelIo(sock_as_handle))
{
DWORD last_error = ::GetLastError();
ec = boost::system::error_code(last_error,
boost::asio::error::get_system_category());
}
else
{
ec = boost::system::error_code();
}
}
else
{
// Asynchronous operations have been started from more than one thread,
// so cancellation is not safe.
ec = boost::asio::error::operation_not_supported;
}
#else // defined(BOOST_ASIO_ENABLE_CANCELIO)
else
{
// Cancellation is not supported as CancelIo may not be used.
ec = boost::asio::error::operation_not_supported;
}
#endif // defined(BOOST_ASIO_ENABLE_CANCELIO)
// Cancel any operations started via the reactor.
if (!ec)
{
reactor* r = static_cast<reactor*>(
interlocked_compare_exchange_pointer(
reinterpret_cast<void**>(&reactor_), 0, 0));
if (r)
r->cancel_ops(impl.socket_, impl.reactor_data_);
}
return ec;
}
boost::system::error_code win_iocp_socket_service_base::do_open(
win_iocp_socket_service_base::base_implementation_type& impl,
int family, int type, int protocol, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
socket_holder sock(socket_ops::socket(family, type, protocol, ec));
if (sock.get() == invalid_socket)
return ec;
HANDLE sock_as_handle = reinterpret_cast<HANDLE>(sock.get());
if (iocp_service_.register_handle(sock_as_handle, ec))
return ec;
impl.socket_ = sock.release();
switch (type)
{
case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
default: impl.state_ = 0; break;
}
impl.cancel_token_.reset(static_cast<void*>(0), socket_ops::noop_deleter());
ec = boost::system::error_code();
return ec;
}
boost::system::error_code win_iocp_socket_service_base::do_assign(
win_iocp_socket_service_base::base_implementation_type& impl,
int type, socket_type native_socket, boost::system::error_code& ec)
{
if (is_open(impl))
{
ec = boost::asio::error::already_open;
return ec;
}
HANDLE sock_as_handle = reinterpret_cast<HANDLE>(native_socket);
if (iocp_service_.register_handle(sock_as_handle, ec))
return ec;
impl.socket_ = native_socket;
switch (type)
{
case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
default: impl.state_ = 0; break;
}
impl.cancel_token_.reset(static_cast<void*>(0), socket_ops::noop_deleter());
ec = boost::system::error_code();
return ec;
}
void win_iocp_socket_service_base::start_send_op(
win_iocp_socket_service_base::base_implementation_type& impl,
WSABUF* buffers, std::size_t buffer_count,
socket_base::message_flags flags, bool noop, operation* op)
{
update_cancellation_thread_id(impl);
iocp_service_.work_started();
if (noop)
iocp_service_.on_completion(op);
else if (!is_open(impl))
iocp_service_.on_completion(op, boost::asio::error::bad_descriptor);
else
{
DWORD bytes_transferred = 0;
int result = ::WSASend(impl.socket_, buffers,
static_cast<DWORD>(buffer_count), &bytes_transferred, flags, op, 0);
DWORD last_error = ::WSAGetLastError();
if (last_error == ERROR_PORT_UNREACHABLE)
last_error = WSAECONNREFUSED;
if (result != 0 && last_error != WSA_IO_PENDING)
iocp_service_.on_completion(op, last_error, bytes_transferred);
else
iocp_service_.on_pending(op);
}
}
void win_iocp_socket_service_base::start_send_to_op(
win_iocp_socket_service_base::base_implementation_type& impl,
WSABUF* buffers, std::size_t buffer_count,
const socket_addr_type* addr, int addrlen,
socket_base::message_flags flags, operation* op)
{
update_cancellation_thread_id(impl);
iocp_service_.work_started();
if (!is_open(impl))
iocp_service_.on_completion(op, boost::asio::error::bad_descriptor);
else
{
DWORD bytes_transferred = 0;
int result = ::WSASendTo(impl.socket_, buffers,
static_cast<DWORD>(buffer_count),
&bytes_transferred, flags, addr, addrlen, op, 0);
DWORD last_error = ::WSAGetLastError();
if (last_error == ERROR_PORT_UNREACHABLE)
last_error = WSAECONNREFUSED;
if (result != 0 && last_error != WSA_IO_PENDING)
iocp_service_.on_completion(op, last_error, bytes_transferred);
else
iocp_service_.on_pending(op);
}
}
void win_iocp_socket_service_base::start_receive_op(
win_iocp_socket_service_base::base_implementation_type& impl,
WSABUF* buffers, std::size_t buffer_count,
socket_base::message_flags flags, bool noop, operation* op)
{
update_cancellation_thread_id(impl);
iocp_service_.work_started();
if (noop)
iocp_service_.on_completion(op);
else if (!is_open(impl))
iocp_service_.on_completion(op, boost::asio::error::bad_descriptor);
else
{
DWORD bytes_transferred = 0;
DWORD recv_flags = flags;
int result = ::WSARecv(impl.socket_, buffers,
static_cast<DWORD>(buffer_count),
&bytes_transferred, &recv_flags, op, 0);
DWORD last_error = ::WSAGetLastError();
if (last_error == ERROR_NETNAME_DELETED)
last_error = WSAECONNRESET;
else if (last_error == ERROR_PORT_UNREACHABLE)
last_error = WSAECONNREFUSED;
if (result != 0 && last_error != WSA_IO_PENDING)
iocp_service_.on_completion(op, last_error, bytes_transferred);
else
iocp_service_.on_pending(op);
}
}
void win_iocp_socket_service_base::start_null_buffers_receive_op(
win_iocp_socket_service_base::base_implementation_type& impl,
socket_base::message_flags flags, reactor_op* op)
{
if ((impl.state_ & socket_ops::stream_oriented) != 0)
{
// For stream sockets on Windows, we may issue a 0-byte overlapped
// WSARecv to wait until there is data available on the socket.
::WSABUF buf = { 0, 0 };
start_receive_op(impl, &buf, 1, flags, false, op);
}
else
{
start_reactor_op(impl,
(flags & socket_base::message_out_of_band)
? reactor::except_op : reactor::read_op,
op);
}
}
void win_iocp_socket_service_base::start_receive_from_op(
win_iocp_socket_service_base::base_implementation_type& impl,
WSABUF* buffers, std::size_t buffer_count, socket_addr_type* addr,
socket_base::message_flags flags, int* addrlen, operation* op)
{
update_cancellation_thread_id(impl);
iocp_service_.work_started();
if (!is_open(impl))
iocp_service_.on_completion(op, boost::asio::error::bad_descriptor);
else
{
DWORD bytes_transferred = 0;
DWORD recv_flags = flags;
int result = ::WSARecvFrom(impl.socket_, buffers,
static_cast<DWORD>(buffer_count),
&bytes_transferred, &recv_flags, addr, addrlen, op, 0);
DWORD last_error = ::WSAGetLastError();
if (last_error == ERROR_PORT_UNREACHABLE)
last_error = WSAECONNREFUSED;
if (result != 0 && last_error != WSA_IO_PENDING)
iocp_service_.on_completion(op, last_error, bytes_transferred);
else
iocp_service_.on_pending(op);
}
}
void win_iocp_socket_service_base::start_accept_op(
win_iocp_socket_service_base::base_implementation_type& impl,
bool peer_is_open, socket_holder& new_socket, int family, int type,
int protocol, void* output_buffer, DWORD address_length, operation* op)
{
update_cancellation_thread_id(impl);
iocp_service_.work_started();
if (!is_open(impl))
iocp_service_.on_completion(op, boost::asio::error::bad_descriptor);
else if (peer_is_open)
iocp_service_.on_completion(op, boost::asio::error::already_open);
else
{
boost::system::error_code ec;
new_socket.reset(socket_ops::socket(family, type, protocol, ec));
if (new_socket.get() == invalid_socket)
iocp_service_.on_completion(op, ec);
else
{
DWORD bytes_read = 0;
BOOL result = ::AcceptEx(impl.socket_, new_socket.get(), output_buffer,
0, address_length, address_length, &bytes_read, op);
DWORD last_error = ::WSAGetLastError();
if (!result && last_error != WSA_IO_PENDING)
iocp_service_.on_completion(op, last_error);
else
iocp_service_.on_pending(op);
}
}
}
void win_iocp_socket_service_base::restart_accept_op(
socket_type s, socket_holder& new_socket, int family, int type,
int protocol, void* output_buffer, DWORD address_length, operation* op)
{
new_socket.reset();
iocp_service_.work_started();
boost::system::error_code ec;
new_socket.reset(socket_ops::socket(family, type, protocol, ec));
if (new_socket.get() == invalid_socket)
iocp_service_.on_completion(op, ec);
else
{
DWORD bytes_read = 0;
BOOL result = ::AcceptEx(s, new_socket.get(), output_buffer,
0, address_length, address_length, &bytes_read, op);
DWORD last_error = ::WSAGetLastError();
if (!result && last_error != WSA_IO_PENDING)
iocp_service_.on_completion(op, last_error);
else
iocp_service_.on_pending(op);
}
}
void win_iocp_socket_service_base::start_reactor_op(
win_iocp_socket_service_base::base_implementation_type& impl,
int op_type, reactor_op* op)
{
reactor& r = get_reactor();
update_cancellation_thread_id(impl);
if (is_open(impl))
{
r.start_op(op_type, impl.socket_, impl.reactor_data_, op, false);
return;
}
else
op->ec_ = boost::asio::error::bad_descriptor;
iocp_service_.post_immediate_completion(op);
}
void win_iocp_socket_service_base::start_connect_op(
win_iocp_socket_service_base::base_implementation_type& impl,
reactor_op* op, const socket_addr_type* addr, std::size_t addrlen)
{
reactor& r = get_reactor();
update_cancellation_thread_id(impl);
if ((impl.state_ & socket_ops::non_blocking) != 0
|| socket_ops::set_internal_non_blocking(
impl.socket_, impl.state_, true, op->ec_))
{
if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0)
{
if (op->ec_ == boost::asio::error::in_progress
|| op->ec_ == boost::asio::error::would_block)
{
op->ec_ = boost::system::error_code();
r.start_op(reactor::connect_op, impl.socket_,
impl.reactor_data_, op, false);
return;
}
}
}
r.post_immediate_completion(op);
}
void win_iocp_socket_service_base::close_for_destruction(
win_iocp_socket_service_base::base_implementation_type& impl)
{
if (is_open(impl))
{
BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close"));
// Check if the reactor was created, in which case we need to close the
// socket on the reactor as well to cancel any operations that might be
// running there.
reactor* r = static_cast<reactor*>(
interlocked_compare_exchange_pointer(
reinterpret_cast<void**>(&reactor_), 0, 0));
if (r)
r->deregister_descriptor(impl.socket_, impl.reactor_data_, true);
}
boost::system::error_code ignored_ec;
socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
impl.socket_ = invalid_socket;
impl.state_ = 0;
impl.cancel_token_.reset();
#if defined(BOOST_ASIO_ENABLE_CANCELIO)
impl.safe_cancellation_thread_id_ = 0;
#endif // defined(BOOST_ASIO_ENABLE_CANCELIO)
}
void win_iocp_socket_service_base::update_cancellation_thread_id(
win_iocp_socket_service_base::base_implementation_type& impl)
{
#if defined(BOOST_ASIO_ENABLE_CANCELIO)
if (impl.safe_cancellation_thread_id_ == 0)
impl.safe_cancellation_thread_id_ = ::GetCurrentThreadId();
else if (impl.safe_cancellation_thread_id_ != ::GetCurrentThreadId())
impl.safe_cancellation_thread_id_ = ~DWORD(0);
#else // defined(BOOST_ASIO_ENABLE_CANCELIO)
(void)impl;
#endif // defined(BOOST_ASIO_ENABLE_CANCELIO)
}
reactor& win_iocp_socket_service_base::get_reactor()
{
reactor* r = static_cast<reactor*>(
interlocked_compare_exchange_pointer(
reinterpret_cast<void**>(&reactor_), 0, 0));
if (!r)
{
r = &(use_service<reactor>(io_service_));
interlocked_exchange_pointer(reinterpret_cast<void**>(&reactor_), r);
}
return *r;
}
void* win_iocp_socket_service_base::interlocked_compare_exchange_pointer(
void** dest, void* exch, void* cmp)
{
#if defined(_M_IX86)
return reinterpret_cast<void*>(InterlockedCompareExchange(
reinterpret_cast<PLONG>(dest), reinterpret_cast<LONG>(exch),
reinterpret_cast<LONG>(cmp)));
#else
return InterlockedCompareExchangePointer(dest, exch, cmp);
#endif
}
void* win_iocp_socket_service_base::interlocked_exchange_pointer(
void** dest, void* val)
{
#if defined(_M_IX86)
return reinterpret_cast<void*>(InterlockedExchange(
reinterpret_cast<PLONG>(dest), reinterpret_cast<LONG>(val)));
#else
return InterlockedExchangePointer(dest, val);
#endif
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_IOCP_SOCKET_SERVICE_BASE_IPP

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//
// detail/impl/win_mutex.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_MUTEX_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_MUTEX_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS)
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/win_mutex.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
win_mutex::win_mutex()
{
int error = do_init();
boost::system::error_code ec(error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "mutex");
}
int win_mutex::do_init()
{
#if defined(__MINGW32__)
// Not sure if MinGW supports structured exception handling, so for now
// we'll just call the Windows API and hope.
# if defined(UNDER_CE)
::InitializeCriticalSection(&crit_section_);
# else
if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
return ::GetLastError();
# endif
return 0;
#else
__try
{
# if defined(UNDER_CE)
::InitializeCriticalSection(&crit_section_);
# else
if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
return ::GetLastError();
# endif
}
__except(GetExceptionCode() == STATUS_NO_MEMORY
? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH)
{
return ERROR_OUTOFMEMORY;
}
return 0;
#endif
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_MUTEX_IPP

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//
// detail/impl/win_static_mutex.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS)
#include <cstdio>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/win_static_mutex.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
void win_static_mutex::init()
{
int error = do_init();
boost::system::error_code ec(error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "static_mutex");
}
int win_static_mutex::do_init()
{
using namespace std; // For sprintf.
wchar_t mutex_name[128];
#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
swprintf_s(mutex_name, 128,
#else // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
swprintf(mutex_name,
#endif // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
L"asio-58CCDC44-6264-4842-90C2-F3C545CB8AA7-%u-%p",
static_cast<unsigned int>(::GetCurrentProcessId()), this);
HANDLE mutex = ::CreateMutexW(0, TRUE, mutex_name);
DWORD last_error = ::GetLastError();
if (mutex == 0)
return ::GetLastError();
if (last_error == ERROR_ALREADY_EXISTS)
::WaitForSingleObject(mutex, INFINITE);
if (initialised_)
{
::ReleaseMutex(mutex);
::CloseHandle(mutex);
return 0;
}
#if defined(__MINGW32__)
// Not sure if MinGW supports structured exception handling, so for now
// we'll just call the Windows API and hope.
# if defined(UNDER_CE)
::InitializeCriticalSection(&crit_section_);
# else
if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
{
last_error = ::GetLastError();
::ReleaseMutex(mutex);
::CloseHandle(mutex);
return last_error;
}
# endif
#else
__try
{
# if defined(UNDER_CE)
::InitializeCriticalSection(&crit_section_);
# else
if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
{
last_error = ::GetLastError();
::ReleaseMutex(mutex);
::CloseHandle(mutex);
return last_error;
}
# endif
}
__except(GetExceptionCode() == STATUS_NO_MEMORY
? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH)
{
::ReleaseMutex(mutex);
::CloseHandle(mutex);
return ERROR_OUTOFMEMORY;
}
#endif
initialised_ = true;
::ReleaseMutex(mutex);
::CloseHandle(mutex);
return 0;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP

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//
// detail/impl/win_thread.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_THREAD_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_THREAD_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS) && !defined(UNDER_CE)
#include <process.h>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/win_thread.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
win_thread::~win_thread()
{
::CloseHandle(thread_);
// The exit_event_ handle is deliberately allowed to leak here since it
// is an error for the owner of an internal thread not to join() it.
}
void win_thread::join()
{
HANDLE handles[2] = { exit_event_, thread_ };
::WaitForMultipleObjects(2, handles, FALSE, INFINITE);
::CloseHandle(exit_event_);
if (terminate_threads())
{
::TerminateThread(thread_, 0);
}
else
{
::QueueUserAPC(apc_function, thread_, 0);
::WaitForSingleObject(thread_, INFINITE);
}
}
void win_thread::start_thread(func_base* arg, unsigned int stack_size)
{
::HANDLE entry_event = 0;
arg->entry_event_ = entry_event = ::CreateEvent(0, true, false, 0);
if (!entry_event)
{
DWORD last_error = ::GetLastError();
delete arg;
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "thread.entry_event");
}
arg->exit_event_ = exit_event_ = ::CreateEvent(0, true, false, 0);
if (!exit_event_)
{
DWORD last_error = ::GetLastError();
delete arg;
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "thread.exit_event");
}
unsigned int thread_id = 0;
thread_ = reinterpret_cast<HANDLE>(::_beginthreadex(0,
stack_size, win_thread_function, arg, 0, &thread_id));
if (!thread_)
{
DWORD last_error = ::GetLastError();
delete arg;
if (entry_event)
::CloseHandle(entry_event);
if (exit_event_)
::CloseHandle(exit_event_);
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "thread");
}
if (entry_event)
{
::WaitForSingleObject(entry_event, INFINITE);
::CloseHandle(entry_event);
}
}
unsigned int __stdcall win_thread_function(void* arg)
{
win_thread::auto_func_base_ptr func = {
static_cast<win_thread::func_base*>(arg) };
::SetEvent(func.ptr->entry_event_);
func.ptr->run();
// Signal that the thread has finished its work, but rather than returning go
// to sleep to put the thread into a well known state. If the thread is being
// joined during global object destruction then it may be killed using
// TerminateThread (to avoid a deadlock in DllMain). Otherwise, the SleepEx
// call will be interrupted using QueueUserAPC and the thread will shut down
// cleanly.
HANDLE exit_event = func.ptr->exit_event_;
delete func.ptr;
func.ptr = 0;
::SetEvent(exit_event);
::SleepEx(INFINITE, TRUE);
return 0;
}
#if defined(WINVER) && (WINVER < 0x0500)
void __stdcall apc_function(ULONG) {}
#else
void __stdcall apc_function(ULONG_PTR) {}
#endif
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS) && !defined(UNDER_CE)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_THREAD_IPP

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//
// detail/impl/win_tss_ptr.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS)
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/win_tss_ptr.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
DWORD win_tss_ptr_create()
{
#if defined(UNDER_CE)
enum { out_of_indexes = 0xFFFFFFFF };
#else
enum { out_of_indexes = TLS_OUT_OF_INDEXES };
#endif
DWORD tss_key = ::TlsAlloc();
if (tss_key == out_of_indexes)
{
DWORD last_error = ::GetLastError();
boost::system::error_code ec(last_error,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "tss");
}
return tss_key;
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS)
#endif // BOOST_ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP

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//
// detail/impl/winsock_init.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
#define BOOST_ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/winsock_init.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
void winsock_init_base::startup(data& d,
unsigned char major, unsigned char minor)
{
if (::InterlockedIncrement(&d.init_count_) == 1)
{
WSADATA wsa_data;
long result = ::WSAStartup(MAKEWORD(major, minor), &wsa_data);
::InterlockedExchange(&d.result_, result);
}
}
void winsock_init_base::cleanup(data& d)
{
if (::InterlockedDecrement(&d.init_count_) == 0)
{
::WSACleanup();
}
}
void winsock_init_base::throw_on_error(data& d)
{
long result = ::InterlockedExchangeAdd(&d.result_, 0);
if (result != 0)
{
boost::system::error_code ec(result,
boost::asio::error::get_system_category());
boost::asio::detail::throw_error(ec, "winsock");
}
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP

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//
// detail/io_control.hpp
// ~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IO_CONTROL_HPP
#define BOOST_ASIO_DETAIL_IO_CONTROL_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <cstddef>
#include <boost/config.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
namespace io_control {
// IO control command for non-blocking I/O.
class non_blocking_io
{
public:
// Default constructor.
non_blocking_io()
: value_(0)
{
}
// Construct with a specific command value.
non_blocking_io(bool value)
: value_(value ? 1 : 0)
{
}
// Get the name of the IO control command.
int name() const
{
return static_cast<int>(FIONBIO);
}
// Set the value of the I/O control command.
void set(bool value)
{
value_ = value ? 1 : 0;
}
// Get the current value of the I/O control command.
bool get() const
{
return value_ != 0;
}
// Get the address of the command data.
detail::ioctl_arg_type* data()
{
return &value_;
}
// Get the address of the command data.
const detail::ioctl_arg_type* data() const
{
return &value_;
}
private:
detail::ioctl_arg_type value_;
};
// I/O control command for getting number of bytes available.
class bytes_readable
{
public:
// Default constructor.
bytes_readable()
: value_(0)
{
}
// Construct with a specific command value.
bytes_readable(std::size_t value)
: value_(static_cast<detail::ioctl_arg_type>(value))
{
}
// Get the name of the IO control command.
int name() const
{
return static_cast<int>(FIONREAD);
}
// Set the value of the I/O control command.
void set(std::size_t value)
{
value_ = static_cast<detail::ioctl_arg_type>(value);
}
// Get the current value of the I/O control command.
std::size_t get() const
{
return static_cast<std::size_t>(value_);
}
// Get the address of the command data.
detail::ioctl_arg_type* data()
{
return &value_;
}
// Get the address of the command data.
const detail::ioctl_arg_type* data() const
{
return &value_;
}
private:
detail::ioctl_arg_type value_;
};
} // namespace io_control
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_IO_CONTROL_HPP

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//
// detail/kqueue_reactor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_KQUEUE_REACTOR_HPP
#define BOOST_ASIO_DETAIL_KQUEUE_REACTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_KQUEUE)
#include <boost/limits.hpp>
#include <cstddef>
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#include <boost/asio/detail/kqueue_reactor_fwd.hpp>
#include <boost/asio/detail/mutex.hpp>
#include <boost/asio/detail/object_pool.hpp>
#include <boost/asio/detail/op_queue.hpp>
#include <boost/asio/detail/reactor_op.hpp>
#include <boost/asio/detail/select_interrupter.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/timer_op.hpp>
#include <boost/asio/detail/timer_queue_base.hpp>
#include <boost/asio/detail/timer_queue_fwd.hpp>
#include <boost/asio/detail/timer_queue_set.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/io_service.hpp>
// Older versions of Mac OS X may not define EV_OOBAND.
#if !defined(EV_OOBAND)
# define EV_OOBAND EV_FLAG1
#endif // !defined(EV_OOBAND)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class kqueue_reactor
: public boost::asio::detail::service_base<kqueue_reactor>
{
public:
enum op_types { read_op = 0, write_op = 1,
connect_op = 1, except_op = 2, max_ops = 3 };
// Per-descriptor queues.
struct descriptor_state
{
friend class kqueue_reactor;
friend class object_pool_access;
descriptor_state* next_;
descriptor_state* prev_;
bool op_queue_is_empty_[max_ops];
mutex mutex_;
int descriptor_;
op_queue<reactor_op> op_queue_[max_ops];
bool shutdown_;
};
// Per-descriptor data.
typedef descriptor_state* per_descriptor_data;
// Constructor.
BOOST_ASIO_DECL kqueue_reactor(boost::asio::io_service& io_service);
// Destructor.
BOOST_ASIO_DECL ~kqueue_reactor();
// Destroy all user-defined handler objects owned by the service.
BOOST_ASIO_DECL void shutdown_service();
// Recreate internal descriptors following a fork.
BOOST_ASIO_DECL void fork_service(
boost::asio::io_service::fork_event fork_ev);
// Initialise the task.
BOOST_ASIO_DECL void init_task();
// Register a socket with the reactor. Returns 0 on success, system error
// code on failure.
BOOST_ASIO_DECL int register_descriptor(socket_type descriptor,
per_descriptor_data& descriptor_data);
// Register a descriptor with an associated single operation. Returns 0 on
// success, system error code on failure.
BOOST_ASIO_DECL int register_internal_descriptor(
int op_type, socket_type descriptor,
per_descriptor_data& descriptor_data, reactor_op* op);
// Move descriptor registration from one descriptor_data object to another.
BOOST_ASIO_DECL void move_descriptor(socket_type descriptor,
per_descriptor_data& target_descriptor_data,
per_descriptor_data& source_descriptor_data);
// Post a reactor operation for immediate completion.
void post_immediate_completion(reactor_op* op)
{
io_service_.post_immediate_completion(op);
}
// Start a new operation. The reactor operation will be performed when the
// given descriptor is flagged as ready, or an error has occurred.
BOOST_ASIO_DECL void start_op(int op_type, socket_type descriptor,
per_descriptor_data& descriptor_data,
reactor_op* op, bool allow_speculative);
// Cancel all operations associated with the given descriptor. The
// handlers associated with the descriptor will be invoked with the
// operation_aborted error.
BOOST_ASIO_DECL void cancel_ops(socket_type descriptor,
per_descriptor_data& descriptor_data);
// Cancel any operations that are running against the descriptor and remove
// its registration from the reactor.
BOOST_ASIO_DECL void deregister_descriptor(socket_type descriptor,
per_descriptor_data& descriptor_data, bool closing);
// Remote the descriptor's registration from the reactor.
BOOST_ASIO_DECL void deregister_internal_descriptor(
socket_type descriptor, per_descriptor_data& descriptor_data);
// Add a new timer queue to the reactor.
template <typename Time_Traits>
void add_timer_queue(timer_queue<Time_Traits>& queue);
// Remove a timer queue from the reactor.
template <typename Time_Traits>
void remove_timer_queue(timer_queue<Time_Traits>& queue);
// Schedule a new operation in the given timer queue to expire at the
// specified absolute time.
template <typename Time_Traits>
void schedule_timer(timer_queue<Time_Traits>& queue,
const typename Time_Traits::time_type& time,
typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op);
// Cancel the timer operations associated with the given token. Returns the
// number of operations that have been posted or dispatched.
template <typename Time_Traits>
std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
typename timer_queue<Time_Traits>::per_timer_data& timer,
std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
// Run the kqueue loop.
BOOST_ASIO_DECL void run(bool block, op_queue<operation>& ops);
// Interrupt the kqueue loop.
BOOST_ASIO_DECL void interrupt();
private:
// Create the kqueue file descriptor. Throws an exception if the descriptor
// cannot be created.
BOOST_ASIO_DECL static int do_kqueue_create();
// Allocate a new descriptor state object.
BOOST_ASIO_DECL descriptor_state* allocate_descriptor_state();
// Free an existing descriptor state object.
BOOST_ASIO_DECL void free_descriptor_state(descriptor_state* s);
// Helper function to add a new timer queue.
BOOST_ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
// Helper function to remove a timer queue.
BOOST_ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
// Get the timeout value for the kevent call.
BOOST_ASIO_DECL timespec* get_timeout(timespec& ts);
// The io_service implementation used to post completions.
io_service_impl& io_service_;
// Mutex to protect access to internal data.
mutex mutex_;
// The kqueue file descriptor.
int kqueue_fd_;
// The interrupter is used to break a blocking kevent call.
select_interrupter interrupter_;
// The timer queues.
timer_queue_set timer_queues_;
// Whether the service has been shut down.
bool shutdown_;
// Mutex to protect access to the registered descriptors.
mutex registered_descriptors_mutex_;
// Keep track of all registered descriptors.
object_pool<descriptor_state> registered_descriptors_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/detail/impl/kqueue_reactor.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/kqueue_reactor.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // defined(BOOST_ASIO_HAS_KQUEUE)
#endif // BOOST_ASIO_DETAIL_KQUEUE_REACTOR_HPP

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//
// detail/kqueue_reactor_fwd.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_KQUEUE_REACTOR_FWD_HPP
#define BOOST_ASIO_DETAIL_KQUEUE_REACTOR_FWD_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_KQUEUE)
namespace boost {
namespace asio {
namespace detail {
class kqueue_reactor;
} // namespace detail
} // namespace asio
} // namespace boost
#endif // defined(BOOST_ASIO_HAS_KQUEUE)
#endif // BOOST_ASIO_DETAIL_KQUEUE_REACTOR_FWD_HPP

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//
// detail/local_free_on_block_exit.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
#define BOOST_ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class local_free_on_block_exit
: private noncopyable
{
public:
// Constructor blocks all signals for the calling thread.
explicit local_free_on_block_exit(void* p)
: p_(p)
{
}
// Destructor restores the previous signal mask.
~local_free_on_block_exit()
{
::LocalFree(p_);
}
private:
void* p_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP

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//
// detail/macos_fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(__MACH__) && defined(__APPLE__)
#include <libkern/OSAtomic.h>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class macos_fenced_block
: private noncopyable
{
public:
enum half_t { half };
enum full_t { full };
// Constructor for a half fenced block.
explicit macos_fenced_block(half_t)
{
}
// Constructor for a full fenced block.
explicit macos_fenced_block(full_t)
{
OSMemoryBarrier();
}
// Destructor.
~macos_fenced_block()
{
OSMemoryBarrier();
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(__MACH__) && defined(__APPLE__)
#endif // BOOST_ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP

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//
// detail/mutex.hpp
// ~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_MUTEX_HPP
#define BOOST_ASIO_DETAIL_MUTEX_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
# include <boost/asio/detail/null_mutex.hpp>
#elif defined(BOOST_WINDOWS)
# include <boost/asio/detail/win_mutex.hpp>
#elif defined(BOOST_HAS_PTHREADS)
# include <boost/asio/detail/posix_mutex.hpp>
#else
# error Only Windows and POSIX are supported!
#endif
namespace boost {
namespace asio {
namespace detail {
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
typedef null_mutex mutex;
#elif defined(BOOST_WINDOWS)
typedef win_mutex mutex;
#elif defined(BOOST_HAS_PTHREADS)
typedef posix_mutex mutex;
#endif
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_MUTEX_HPP

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//
// detail/noncopyable.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NONCOPYABLE_HPP
#define BOOST_ASIO_DETAIL_NONCOPYABLE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/noncopyable.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
// Redefine the noncopyable class for Borland C++ since that compiler does not
// apply the empty base optimisation unless the base class contains a dummy
// char data member.
class noncopyable
{
protected:
noncopyable() {}
~noncopyable() {}
private:
noncopyable(const noncopyable&);
const noncopyable& operator=(const noncopyable&);
char dummy_;
};
#else
using boost::noncopyable;
#endif
} // namespace detail
using boost::asio::detail::noncopyable;
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_NONCOPYABLE_HPP

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//
// detail/null_event.hpp
// ~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NULL_EVENT_HPP
#define BOOST_ASIO_DETAIL_NULL_EVENT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class null_event
: private noncopyable
{
public:
// Constructor.
null_event()
{
}
// Destructor.
~null_event()
{
}
// Signal the event.
template <typename Lock>
void signal(Lock&)
{
}
// Signal the event and unlock the mutex.
template <typename Lock>
void signal_and_unlock(Lock&)
{
}
// Reset the event.
template <typename Lock>
void clear(Lock&)
{
}
// Wait for the event to become signalled.
template <typename Lock>
void wait(Lock&)
{
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_NULL_EVENT_HPP

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//
// detail/null_fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class null_fenced_block
: private noncopyable
{
public:
enum half_or_full_t { half, full };
// Constructor.
explicit null_fenced_block(half_or_full_t)
{
}
// Destructor.
~null_fenced_block()
{
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP

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//
// detail/null_mutex.hpp
// ~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NULL_MUTEX_HPP
#define BOOST_ASIO_DETAIL_NULL_MUTEX_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/scoped_lock.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class null_mutex
: private noncopyable
{
public:
typedef boost::asio::detail::scoped_lock<null_mutex> scoped_lock;
// Constructor.
null_mutex()
{
}
// Destructor.
~null_mutex()
{
}
// Lock the mutex.
void lock()
{
}
// Unlock the mutex.
void unlock()
{
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_NULL_MUTEX_HPP

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//
// detail/null_signal_blocker.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
#define BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) \
|| defined(BOOST_ASIO_DISABLE_THREADS) \
|| defined(BOOST_WINDOWS) \
|| defined(__CYGWIN__) \
|| defined(__SYMBIAN32__)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class null_signal_blocker
: private noncopyable
{
public:
// Constructor blocks all signals for the calling thread.
null_signal_blocker()
{
}
// Destructor restores the previous signal mask.
~null_signal_blocker()
{
}
// Block all signals for the calling thread.
void block()
{
}
// Restore the previous signal mask.
void unblock()
{
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_HAS_THREADS)
// || defined(BOOST_ASIO_DISABLE_THREADS)
// || defined(BOOST_WINDOWS)
// || defined(__CYGWIN__)
// || defined(__SYMBIAN32__)
#endif // BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP

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//
// detail/null_static_mutex.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NULL_STATIC_MUTEX_HPP
#define BOOST_ASIO_DETAIL_NULL_STATIC_MUTEX_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/scoped_lock.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct null_static_mutex
{
typedef boost::asio::detail::scoped_lock<null_static_mutex> scoped_lock;
// Initialise the mutex.
void init()
{
}
// Lock the mutex.
void lock()
{
}
// Unlock the mutex.
void unlock()
{
}
int unused_;
};
#define BOOST_ASIO_NULL_STATIC_MUTEX_INIT { 0 }
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_NULL_STATIC_MUTEX_HPP

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//
// detail/null_thread.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NULL_THREAD_HPP
#define BOOST_ASIO_DETAIL_NULL_THREAD_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class null_thread
: private noncopyable
{
public:
// Constructor.
template <typename Function>
null_thread(Function, unsigned int = 0)
{
boost::asio::detail::throw_error(
boost::asio::error::operation_not_supported, "thread");
}
// Destructor.
~null_thread()
{
}
// Wait for the thread to exit.
void join()
{
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_NULL_THREAD_HPP

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//
// detail/null_tss_ptr.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_NULL_TSS_PTR_HPP
#define BOOST_ASIO_DETAIL_NULL_TSS_PTR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename T>
class null_tss_ptr
: private noncopyable
{
public:
// Constructor.
null_tss_ptr()
: value_(0)
{
}
// Destructor.
~null_tss_ptr()
{
}
// Get the value.
operator T*() const
{
return value_;
}
// Set the value.
void operator=(T* value)
{
value_ = value;
}
private:
T* value_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_NULL_TSS_PTR_HPP

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//
// detail/object_pool.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_OBJECT_POOL_HPP
#define BOOST_ASIO_DETAIL_OBJECT_POOL_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Object>
class object_pool;
class object_pool_access
{
public:
template <typename Object>
static Object* create()
{
return new Object;
}
template <typename Object>
static void destroy(Object* o)
{
delete o;
}
template <typename Object>
static Object*& next(Object* o)
{
return o->next_;
}
template <typename Object>
static Object*& prev(Object* o)
{
return o->prev_;
}
};
template <typename Object>
class object_pool
: private noncopyable
{
public:
// Constructor.
object_pool()
: live_list_(0),
free_list_(0)
{
}
// Destructor destroys all objects.
~object_pool()
{
destroy_list(live_list_);
destroy_list(free_list_);
}
// Get the object at the start of the live list.
Object* first()
{
return live_list_;
}
// Allocate a new object.
Object* alloc()
{
Object* o = free_list_;
if (o)
free_list_ = object_pool_access::next(free_list_);
else
o = object_pool_access::create<Object>();
object_pool_access::next(o) = live_list_;
object_pool_access::prev(o) = 0;
if (live_list_)
object_pool_access::prev(live_list_) = o;
live_list_ = o;
return o;
}
// Free an object. Moves it to the free list. No destructors are run.
void free(Object* o)
{
if (live_list_ == o)
live_list_ = object_pool_access::next(o);
if (object_pool_access::prev(o))
{
object_pool_access::next(object_pool_access::prev(o))
= object_pool_access::next(o);
}
if (object_pool_access::next(o))
{
object_pool_access::prev(object_pool_access::next(o))
= object_pool_access::prev(o);
}
object_pool_access::next(o) = free_list_;
object_pool_access::prev(o) = 0;
free_list_ = o;
}
private:
// Helper function to destroy all elements in a list.
void destroy_list(Object* list)
{
while (list)
{
Object* o = list;
list = object_pool_access::next(o);
object_pool_access::destroy(o);
}
}
// The list of live objects.
Object* live_list_;
// The free list.
Object* free_list_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_OBJECT_POOL_HPP

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//
// detail/old_win_sdk_compat.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_OLD_WIN_SDK_COMPAT_HPP
#define BOOST_ASIO_DETAIL_OLD_WIN_SDK_COMPAT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Guess whether we are building against on old Platform SDK.
#if !defined(IN6ADDR_ANY_INIT)
#define BOOST_ASIO_HAS_OLD_WIN_SDK 1
#endif // !defined(IN6ADDR_ANY_INIT)
#if defined(BOOST_ASIO_HAS_OLD_WIN_SDK)
// Emulation of types that are missing from old Platform SDKs.
//
// N.B. this emulation is also used if building for a Windows 2000 target with
// a recent (i.e. Vista or later) SDK, as the SDK does not provide IPv6 support
// in that case.
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
enum
{
sockaddr_storage_maxsize = 128, // Maximum size.
sockaddr_storage_alignsize = (sizeof(__int64)), // Desired alignment.
sockaddr_storage_pad1size = (sockaddr_storage_alignsize - sizeof(short)),
sockaddr_storage_pad2size = (sockaddr_storage_maxsize -
(sizeof(short) + sockaddr_storage_pad1size + sockaddr_storage_alignsize))
};
struct sockaddr_storage_emulation
{
short ss_family;
char __ss_pad1[sockaddr_storage_pad1size];
__int64 __ss_align;
char __ss_pad2[sockaddr_storage_pad2size];
};
struct in6_addr_emulation
{
union
{
u_char Byte[16];
u_short Word[8];
} u;
};
#if !defined(s6_addr)
# define _S6_un u
# define _S6_u8 Byte
# define s6_addr _S6_un._S6_u8
#endif // !defined(s6_addr)
struct sockaddr_in6_emulation
{
short sin6_family;
u_short sin6_port;
u_long sin6_flowinfo;
in6_addr_emulation sin6_addr;
u_long sin6_scope_id;
};
struct ipv6_mreq_emulation
{
in6_addr_emulation ipv6mr_multiaddr;
unsigned int ipv6mr_interface;
};
struct addrinfo_emulation
{
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
size_t ai_addrlen;
char* ai_canonname;
sockaddr* ai_addr;
addrinfo_emulation* ai_next;
};
#if !defined(AI_PASSIVE)
# define AI_PASSIVE 0x1
#endif
#if !defined(AI_CANONNAME)
# define AI_CANONNAME 0x2
#endif
#if !defined(AI_NUMERICHOST)
# define AI_NUMERICHOST 0x4
#endif
#if !defined(EAI_AGAIN)
# define EAI_AGAIN WSATRY_AGAIN
#endif
#if !defined(EAI_BADFLAGS)
# define EAI_BADFLAGS WSAEINVAL
#endif
#if !defined(EAI_FAIL)
# define EAI_FAIL WSANO_RECOVERY
#endif
#if !defined(EAI_FAMILY)
# define EAI_FAMILY WSAEAFNOSUPPORT
#endif
#if !defined(EAI_MEMORY)
# define EAI_MEMORY WSA_NOT_ENOUGH_MEMORY
#endif
#if !defined(EAI_NODATA)
# define EAI_NODATA WSANO_DATA
#endif
#if !defined(EAI_NONAME)
# define EAI_NONAME WSAHOST_NOT_FOUND
#endif
#if !defined(EAI_SERVICE)
# define EAI_SERVICE WSATYPE_NOT_FOUND
#endif
#if !defined(EAI_SOCKTYPE)
# define EAI_SOCKTYPE WSAESOCKTNOSUPPORT
#endif
#if !defined(NI_NOFQDN)
# define NI_NOFQDN 0x01
#endif
#if !defined(NI_NUMERICHOST)
# define NI_NUMERICHOST 0x02
#endif
#if !defined(NI_NAMEREQD)
# define NI_NAMEREQD 0x04
#endif
#if !defined(NI_NUMERICSERV)
# define NI_NUMERICSERV 0x08
#endif
#if !defined(NI_DGRAM)
# define NI_DGRAM 0x10
#endif
#if !defined(IPPROTO_IPV6)
# define IPPROTO_IPV6 41
#endif
#if !defined(IPV6_UNICAST_HOPS)
# define IPV6_UNICAST_HOPS 4
#endif
#if !defined(IPV6_MULTICAST_IF)
# define IPV6_MULTICAST_IF 9
#endif
#if !defined(IPV6_MULTICAST_HOPS)
# define IPV6_MULTICAST_HOPS 10
#endif
#if !defined(IPV6_MULTICAST_LOOP)
# define IPV6_MULTICAST_LOOP 11
#endif
#if !defined(IPV6_JOIN_GROUP)
# define IPV6_JOIN_GROUP 12
#endif
#if !defined(IPV6_LEAVE_GROUP)
# define IPV6_LEAVE_GROUP 13
#endif
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_OLD_WIN_SDK)
// Even newer Platform SDKs that support IPv6 may not define IPV6_V6ONLY.
#if !defined(IPV6_V6ONLY)
# define IPV6_V6ONLY 27
#endif
// Some SDKs (e.g. Windows CE) don't define IPPROTO_ICMPV6.
#if !defined(IPPROTO_ICMPV6)
# define IPPROTO_ICMPV6 58
#endif
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_OLD_WIN_SDK_COMPAT_HPP

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//
// detail/op_queue.hpp
// ~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_OP_QUEUE_HPP
#define BOOST_ASIO_DETAIL_OP_QUEUE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Operation>
class op_queue;
class op_queue_access
{
public:
template <typename Operation>
static Operation* next(Operation* o)
{
return static_cast<Operation*>(o->next_);
}
template <typename Operation1, typename Operation2>
static void next(Operation1*& o1, Operation2* o2)
{
o1->next_ = o2;
}
template <typename Operation>
static void destroy(Operation* o)
{
o->destroy();
}
template <typename Operation>
static Operation*& front(op_queue<Operation>& q)
{
return q.front_;
}
template <typename Operation>
static Operation*& back(op_queue<Operation>& q)
{
return q.back_;
}
};
template <typename Operation>
class op_queue
: private noncopyable
{
public:
// Constructor.
op_queue()
: front_(0),
back_(0)
{
}
// Destructor destroys all operations.
~op_queue()
{
while (Operation* op = front_)
{
pop();
op_queue_access::destroy(op);
}
}
// Get the operation at the front of the queue.
Operation* front()
{
return front_;
}
// Pop an operation from the front of the queue.
void pop()
{
if (front_)
{
Operation* tmp = front_;
front_ = op_queue_access::next(front_);
if (front_ == 0)
back_ = 0;
op_queue_access::next(tmp, static_cast<Operation*>(0));
}
}
// Push an operation on to the back of the queue.
void push(Operation* h)
{
op_queue_access::next(h, static_cast<Operation*>(0));
if (back_)
{
op_queue_access::next(back_, h);
back_ = h;
}
else
{
front_ = back_ = h;
}
}
// Push all operations from another queue on to the back of the queue. The
// source queue may contain operations of a derived type.
template <typename OtherOperation>
void push(op_queue<OtherOperation>& q)
{
if (Operation* other_front = op_queue_access::front(q))
{
if (back_)
op_queue_access::next(back_, other_front);
else
front_ = other_front;
back_ = op_queue_access::back(q);
op_queue_access::front(q) = 0;
op_queue_access::back(q) = 0;
}
}
// Whether the queue is empty.
bool empty() const
{
return front_ == 0;
}
private:
friend class op_queue_access;
// The front of the queue.
Operation* front_;
// The back of the queue.
Operation* back_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_OP_QUEUE_HPP

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//
// detail/operation.hpp
// ~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_OPERATION_HPP
#define BOOST_ASIO_DETAIL_OPERATION_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_IOCP)
# include <boost/asio/detail/win_iocp_operation.hpp>
#else
# include <boost/asio/detail/task_io_service_operation.hpp>
#endif
namespace boost {
namespace asio {
namespace detail {
#if defined(BOOST_ASIO_HAS_IOCP)
typedef win_iocp_operation operation;
#else
typedef task_io_service_operation operation;
#endif
} // namespace detail
} // namespace asio
} // namespace boost
#endif // BOOST_ASIO_DETAIL_OPERATION_HPP

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//
// detail/pipe_select_interrupter.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
#define BOOST_ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_WINDOWS)
#if !defined(__CYGWIN__)
#if !defined(__SYMBIAN32__)
#if !defined(BOOST_ASIO_HAS_EVENTFD)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class pipe_select_interrupter
{
public:
// Constructor.
BOOST_ASIO_DECL pipe_select_interrupter();
// Destructor.
BOOST_ASIO_DECL ~pipe_select_interrupter();
// Recreate the interrupter's descriptors. Used after a fork.
BOOST_ASIO_DECL void recreate();
// Interrupt the select call.
BOOST_ASIO_DECL void interrupt();
// Reset the select interrupt. Returns true if the call was interrupted.
BOOST_ASIO_DECL bool reset();
// Get the read descriptor to be passed to select.
int read_descriptor() const
{
return read_descriptor_;
}
private:
// Open the descriptors. Throws on error.
BOOST_ASIO_DECL void open_descriptors();
// Close the descriptors.
BOOST_ASIO_DECL void close_descriptors();
// The read end of a connection used to interrupt the select call. This file
// descriptor is passed to select such that when it is time to stop, a single
// byte will be written on the other end of the connection and this
// descriptor will become readable.
int read_descriptor_;
// The write end of a connection used to interrupt the select call. A single
// byte may be written to this to wake up the select which is waiting for the
// other end to become readable.
int write_descriptor_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/pipe_select_interrupter.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // !defined(BOOST_ASIO_HAS_EVENTFD)
#endif // !defined(__SYMBIAN32__)
#endif // !defined(__CYGWIN__)
#endif // !defined(BOOST_WINDOWS)
#endif // BOOST_ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP

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//
// detail/pop_options.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// No header guard
#if defined(__COMO__)
// Comeau C++
#elif defined(__DMC__)
// Digital Mars C++
#elif defined(__INTEL_COMPILER) || defined(__ICL) \
|| defined(__ICC) || defined(__ECC)
// Intel C++
#elif defined(__GNUC__)
// GNU C++
# if defined(__MINGW32__) || defined(__CYGWIN__)
# pragma pack (pop)
# endif
# if defined(__OBJC__)
# if !defined(__APPLE_CC__) || (__APPLE_CC__ <= 1)
# if defined(BOOST_ASIO_OBJC_WORKAROUND)
# undef Protocol
# undef id
# undef BOOST_ASIO_OBJC_WORKAROUND
# endif
# endif
# endif
#elif defined(__KCC)
// Kai C++
#elif defined(__sgi)
// SGI MIPSpro C++
#elif defined(__DECCXX)
// Compaq Tru64 Unix cxx
#elif defined(__ghs)
// Greenhills C++
#elif defined(__BORLANDC__)
// Borland C++
# pragma option pop
# pragma nopushoptwarn
# pragma nopackwarning
#elif defined(__MWERKS__)
// Metrowerks CodeWarrior
#elif defined(__SUNPRO_CC)
// Sun Workshop Compiler C++
#elif defined(__HP_aCC)
// HP aCC
#elif defined(__MRC__) || defined(__SC__)
// MPW MrCpp or SCpp
#elif defined(__IBMCPP__)
// IBM Visual Age
#elif defined(_MSC_VER)
// Microsoft Visual C++
//
// Must remain the last #elif since some other vendors (Metrowerks, for example)
// also #define _MSC_VER
# pragma warning (pop)
# pragma pack (pop)
#endif

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//
// detail/posix_event.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_POSIX_EVENT_HPP
#define BOOST_ASIO_DETAIL_POSIX_EVENT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#include <boost/assert.hpp>
#include <pthread.h>
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class posix_event
: private noncopyable
{
public:
// Constructor.
BOOST_ASIO_DECL posix_event();
// Destructor.
~posix_event()
{
::pthread_cond_destroy(&cond_);
}
// Signal the event.
template <typename Lock>
void signal(Lock& lock)
{
BOOST_ASSERT(lock.locked());
(void)lock;
signalled_ = true;
::pthread_cond_signal(&cond_); // Ignore EINVAL.
}
// Signal the event and unlock the mutex.
template <typename Lock>
void signal_and_unlock(Lock& lock)
{
BOOST_ASSERT(lock.locked());
signalled_ = true;
lock.unlock();
::pthread_cond_signal(&cond_); // Ignore EINVAL.
}
// Reset the event.
template <typename Lock>
void clear(Lock& lock)
{
BOOST_ASSERT(lock.locked());
(void)lock;
signalled_ = false;
}
// Wait for the event to become signalled.
template <typename Lock>
void wait(Lock& lock)
{
BOOST_ASSERT(lock.locked());
while (!signalled_)
::pthread_cond_wait(&cond_, &lock.mutex().mutex_); // Ignore EINVAL.
}
private:
::pthread_cond_t cond_;
bool signalled_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/posix_event.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_POSIX_EVENT_HPP

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//
// detail/posix_fd_set_adapter.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
#define BOOST_ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#include <cstring>
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/socket_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
// Adapts the FD_SET type to meet the Descriptor_Set concept's requirements.
class posix_fd_set_adapter : noncopyable
{
public:
posix_fd_set_adapter()
: max_descriptor_(invalid_socket)
{
using namespace std; // Needed for memset on Solaris.
FD_ZERO(&fd_set_);
}
void reset()
{
using namespace std; // Needed for memset on Solaris.
FD_ZERO(&fd_set_);
}
bool set(socket_type descriptor)
{
if (descriptor < (socket_type)FD_SETSIZE)
{
if (max_descriptor_ == invalid_socket || descriptor > max_descriptor_)
max_descriptor_ = descriptor;
FD_SET(descriptor, &fd_set_);
return true;
}
return false;
}
bool is_set(socket_type descriptor) const
{
return FD_ISSET(descriptor, &fd_set_) != 0;
}
operator fd_set*()
{
return &fd_set_;
}
socket_type max_descriptor() const
{
return max_descriptor_;
}
private:
mutable fd_set fd_set_;
socket_type max_descriptor_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // BOOST_ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP

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//
// detail/posix_mutex.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_POSIX_MUTEX_HPP
#define BOOST_ASIO_DETAIL_POSIX_MUTEX_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#include <pthread.h>
#include <boost/asio/detail/noncopyable.hpp>
#include <boost/asio/detail/scoped_lock.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class posix_event;
class posix_mutex
: private noncopyable
{
public:
typedef boost::asio::detail::scoped_lock<posix_mutex> scoped_lock;
// Constructor.
BOOST_ASIO_DECL posix_mutex();
// Destructor.
~posix_mutex()
{
::pthread_mutex_destroy(&mutex_); // Ignore EBUSY.
}
// Lock the mutex.
void lock()
{
(void)::pthread_mutex_lock(&mutex_); // Ignore EINVAL.
}
// Unlock the mutex.
void unlock()
{
(void)::pthread_mutex_unlock(&mutex_); // Ignore EINVAL.
}
private:
friend class posix_event;
::pthread_mutex_t mutex_;
};
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/posix_mutex.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
#endif // BOOST_ASIO_DETAIL_POSIX_MUTEX_HPP

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