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packed_oprimitive.hpp - Hosted on DriveHQ Cloud IT Platform
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Ruta de la carpeta: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\mpi\detail\packed_oprimitive.hpp
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// (C) Copyright 2005 Matthias Troyer // 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) // Authors: Matthias Troyer #ifndef BOOST_MPI_PACKED_OPRIMITIVE_HPP #define BOOST_MPI_PACKED_OPRIMITIVE_HPP #include
#include
#include
// size_t #include
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace mpi { /// serialization using MPI::Pack class BOOST_MPI_DECL packed_oprimitive { public: /// the type of the buffer into which the data is packed upon serialization typedef std::vector
> buffer_type; packed_oprimitive(buffer_type & b, MPI_Comm const & comm) : buffer_(b), comm(comm) { } void const * address() const { return &buffer_[0]; } const std::size_t& size() const { return size_ = buffer_.size(); } void save_binary(void const *address, std::size_t count) { save_impl(address,MPI_BYTE,count); } // fast saving of arrays template
void save_array(serialization::array
const& x, unsigned int /* file_version */) { if (x.count()) save_impl(x.address(), get_mpi_datatype(*x.address()), x.count()); } typedef is_mpi_datatype
use_array_optimization; #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS friend class archive::save_access; protected: #else public: #endif // default saving of primitives. template
void save(const T & t) { save_impl(&t, get_mpi_datatype
(t), 1); } void save(const std::string &s) { unsigned int l = static_cast
(s.size()); save(l); save_impl(s.data(),MPI_CHAR,s.size()); } private: void save_impl(void const * p, MPI_Datatype t, int l) { // allocate enough memory int memory_needed; BOOST_MPI_CHECK_RESULT(MPI_Pack_size,(l,t,comm,&memory_needed)); int position = buffer_.size(); buffer_.resize(position + memory_needed); // pack the data into the buffer BOOST_MPI_CHECK_RESULT(MPI_Pack, (const_cast
(p), l, t, boost::serialization::detail::get_data(buffer_), buffer_.size(), &position, comm)); // reduce the buffer size if needed BOOST_ASSERT(std::size_t(position) <= buffer_.size()); if (std::size_t(position) < buffer_.size()) buffer_.resize(position); } buffer_type& buffer_; mutable std::size_t size_; MPI_Comm comm; }; } } // end namespace boost::mpi #endif // BOOST_MPI_PACKED_OPRIMITIVE_HPP
packed_oprimitive.hpp
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