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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\mpi\request.hpp
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// Copyright (C) 2006 Douglas Gregor
. // 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
#include
#include
#include
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
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
(*handler_type)(request* self, request_action action); /** * INTERNAL ONLY * * Handles the non-blocking receive of a serialized value. */ template
static optional
handle_serialized_irecv(request* self, request_action action); /** * INTERNAL ONLY * * Handles the non-blocking receive of an array of serialized values. */ template
static optional
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
m_data; friend class communicator; }; } } // end namespace boost::mpi #endif // BOOST_MPI_REQUEST_HPP
request.hpp
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