Added boost header

test/external/boost/interprocess/sync/interprocess_condition.hpp

@@ -0,0 +1,179 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005-2009. 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)
+//
+// See http://www.boost.org/libs/interprocess for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTERPROCESS_CONDITION_HPP
+#define BOOST_INTERPROCESS_CONDITION_HPP
+
+#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+#  pragma once
+#endif
+
+/// @cond
+
+#include <boost/interprocess/detail/config_begin.hpp>
+#include <boost/interprocess/detail/workaround.hpp>
+
+#include <boost/interprocess/detail/posix_time_types_wrk.hpp>
+#include <boost/interprocess/sync/scoped_lock.hpp>
+#include <boost/interprocess/sync/interprocess_condition.hpp>
+#include <boost/interprocess/sync/interprocess_mutex.hpp>
+#include <boost/interprocess/exceptions.hpp>
+#include <boost/limits.hpp>
+#include <boost/assert.hpp>
+
+#if !defined(BOOST_INTERPROCESS_FORCE_GENERIC_EMULATION) && defined(BOOST_INTERPROCESS_POSIX_PROCESS_SHARED)
+   #include <pthread.h>
+   #include <errno.h>   
+   #include <boost/interprocess/sync/posix/pthread_helpers.hpp>
+   #define BOOST_INTERPROCESS_USE_POSIX
+#else
+   #include <boost/interprocess/detail/atomic.hpp>
+   #include <boost/cstdint.hpp>
+   #include <boost/interprocess/detail/os_thread_functions.hpp>
+   #define BOOST_INTERPROCESS_USE_GENERIC_EMULATION
+#endif
+
+/// @endcond
+
+//!\file
+//!Describes process-shared variables interprocess_condition class
+
+namespace boost {
+
+namespace posix_time
+{  class ptime;   }
+
+namespace interprocess {
+
+class named_condition;
+
+//!This class is a condition variable that can be placed in shared memory or
+//!memory mapped files.
+class interprocess_condition
+{
+   /// @cond
+   //Non-copyable
+   interprocess_condition(const interprocess_condition &);
+   interprocess_condition &operator=(const interprocess_condition &);
+   friend class named_condition;
+   /// @endcond
+   public:
+   //!Constructs a interprocess_condition. On error throws interprocess_exception.
+   interprocess_condition();
+
+   //!Destroys *this
+   //!liberating system resources.
+   ~interprocess_condition();
+
+   //!If there is a thread waiting on *this, change that 
+   //!thread's state to ready. Otherwise there is no effect.
+   void notify_one();
+
+   //!Change the state of all threads waiting on *this to ready.
+   //!If there are no waiting threads, notify_all() has no effect.
+   void notify_all();
+
+   //!Releases the lock on the interprocess_mutex object associated with lock, blocks 
+   //!the current thread of execution until readied by a call to 
+   //!this->notify_one() or this->notify_all(), and then reacquires the lock.
+   template <typename L>
+   void wait(L& lock)
+   {
+      if (!lock)
+         throw lock_exception();
+      do_wait(*lock.mutex());
+   }
+
+   //!The same as:
+   //!while (!pred()) wait(lock)
+   template <typename L, typename Pr>
+   void wait(L& lock, Pr pred)
+   {
+      if (!lock)
+         throw lock_exception();
+
+      while (!pred())
+         do_wait(*lock.mutex());
+   }
+
+   //!Releases the lock on the interprocess_mutex object associated with lock, blocks 
+   //!the current thread of execution until readied by a call to 
+   //!this->notify_one() or this->notify_all(), or until time abs_time is reached, 
+   //!and then reacquires the lock.
+   //!Returns: false if time abs_time is reached, otherwise true.
+   template <typename L>
+   bool timed_wait(L& lock, const boost::posix_time::ptime &abs_time)
+   {
+      if(abs_time == boost::posix_time::pos_infin){
+         this->wait(lock);
+         return true;
+      }
+      if (!lock)
+            throw lock_exception();
+      return do_timed_wait(abs_time, *lock.mutex());
+   }
+
+   //!The same as:   while (!pred()) { 
+   //!                  if (!timed_wait(lock, abs_time)) return pred(); 
+   //!               } return true;
+   template <typename L, typename Pr>
+   bool timed_wait(L& lock, const boost::posix_time::ptime &abs_time, Pr pred)
+   {
+      if(abs_time == boost::posix_time::pos_infin){
+         this->wait(lock, pred);
+         return true;
+      }
+      if (!lock)
+            throw lock_exception();
+      while (!pred()){
+         if (!do_timed_wait(abs_time, *lock.mutex()))
+            return pred();
+      }
+
+      return true;
+   }
+
+   /// @cond
+   private:
+   void do_wait(interprocess_mutex  &mut);
+
+   bool do_timed_wait(const boost::posix_time::ptime &abs_time, interprocess_mutex &mut);
+
+   #if defined (BOOST_INTERPROCESS_USE_GENERIC_EMULATION)
+      enum { SLEEP = 0, NOTIFY_ONE, NOTIFY_ALL };
+      interprocess_mutex         m_enter_mut;
+      //interprocess_mutex       m_check_mut;
+      volatile boost::uint32_t    m_command;
+      volatile boost::uint32_t    m_num_waiters;
+      bool do_timed_wait(bool tout_enabled, const boost::posix_time::ptime &abs_time, interprocess_mutex &mut);
+      void notify(boost::uint32_t command);
+   #elif defined(BOOST_INTERPROCESS_USE_POSIX)
+      pthread_cond_t   m_condition;
+   #endif
+   /// @endcond
+};
+
+}  //namespace interprocess
+
+}  // namespace boost
+
+#ifdef BOOST_INTERPROCESS_USE_GENERIC_EMULATION
+#  undef BOOST_INTERPROCESS_USE_GENERIC_EMULATION
+#  include <boost/interprocess/sync/emulation/interprocess_condition.hpp>
+#endif
+
+#ifdef BOOST_INTERPROCESS_USE_POSIX
+#  undef BOOST_INTERPROCESS_USE_POSIX
+#  include <boost/interprocess/sync/posix/interprocess_condition.hpp>
+#endif
+
+#include <boost/interprocess/detail/config_end.hpp>
+
+#endif // BOOST_INTERPROCESS_CONDITION_HPP