Added boost header

test/external/boost/mpi/request.hpp

@@ -0,0 +1,102 @@
+// Copyright (C) 2006 Douglas Gregor <doug.gregor -at- gmail.com>.
+
+// Use, modification and distribution is subject to 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)
+
+/** @file request.hpp
+ *
+ *  This header defines the class @c request, which contains a request
+ *  for non-blocking communication.
+ */
+#ifndef BOOST_MPI_REQUEST_HPP
+#define BOOST_MPI_REQUEST_HPP
+
+#include <boost/mpi/config.hpp>
+#include <boost/optional.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/mpi/packed_iarchive.hpp>
+
+namespace boost { namespace mpi {
+
+class status;
+class communicator;
+
+/**
+ *  @brief A request for a non-blocking send or receive.
+ *
+ *  This structure contains information about a non-blocking send or
+ *  receive and will be returned from @c isend or @c irecv,
+ *  respectively.
+ */
+class BOOST_MPI_DECL request 
+{
+ public:
+  /**
+   *  Constructs a NULL request.
+   */
+  request();
+
+  /**
+   *  Wait until the communication associated with this request has
+   *  completed, then return a @c status object describing the
+   *  communication.
+   */
+  status wait();
+
+  /**
+   *  Determine whether the communication associated with this request
+   *  has completed successfully. If so, returns the @c status object
+   *  describing the communication. Otherwise, returns an empty @c
+   *  optional<> to indicate that the communication has not completed
+   *  yet. Note that once @c test() returns a @c status object, the
+   *  request has completed and @c wait() should not be called.
+   */
+  optional<status> test();
+
+  /**
+   *  Cancel a pending communication, assuming it has not already been
+   *  completed.
+   */
+  void cancel();
+
+ private:
+  enum request_action { ra_wait, ra_test, ra_cancel };
+  typedef optional<status> (*handler_type)(request* self, 
+                                           request_action action);
+
+  /**
+   * INTERNAL ONLY
+   *
+   * Handles the non-blocking receive of a serialized value.
+   */
+  template<typename T>
+  static optional<status> 
+  handle_serialized_irecv(request* self, request_action action);
+
+  /**
+   * INTERNAL ONLY
+   *
+   * Handles the non-blocking receive of an array of  serialized values.
+   */
+  template<typename T>
+  static optional<status> 
+  handle_serialized_array_irecv(request* self, request_action action);
+
+ public: // template friends are not portable
+
+  /// INTERNAL ONLY
+  MPI_Request m_requests[2];
+
+  /// INTERNAL ONLY
+  handler_type m_handler;
+
+  /// INTERNAL ONLY
+  shared_ptr<void> m_data;
+
+  friend class communicator;
+};
+
+} } // end namespace boost::mpi
+
+#endif // BOOST_MPI_REQUEST_HPP