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exercise_2/3rdparty/colmap-dev/lib/FLANN/mpi/queries.h

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/***********************************************************************
* Software License Agreement (BSD License)
*
* Copyright 2008-2011 Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
* Copyright 2008-2011 David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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*************************************************************************/
#ifndef MPI_QUERIES_H_
#define MPI_QUERIES_H_
#include <FLANN/mpi/matrix.h>
#include <boost/archive/binary_iarchive.hpp>
#include <boost/archive/binary_oarchive.hpp>
#include <boost/asio.hpp>
namespace flann
{
template<typename T>
struct Request
{
flann::Matrix<T> queries;
int nn;
int checks;
template<typename Archive>
void serialize(Archive& ar, const unsigned int version)
{
ar & queries & nn & checks;
}
};
template<typename T>
struct Response
{
flann::Matrix<int> indices;
flann::Matrix<T> dists;
template<typename Archive>
void serialize(Archive& ar, const unsigned int version)
{
ar & indices & dists;
}
};
using boost::asio::ip::tcp;
template <typename T>
void read_object(tcp::socket& sock, T& val)
{
uint32_t size;
boost::asio::read(sock, boost::asio::buffer(&size, sizeof(size)));
size = ntohl(size);
boost::asio::streambuf archive_stream;
boost::asio::read(sock, archive_stream, boost::asio::transfer_at_least(size));
boost::archive::binary_iarchive archive(archive_stream);
archive >> val;
}
template <typename T>
void write_object(tcp::socket& sock, const T& val)
{
boost::asio::streambuf archive_stream;
boost::archive::binary_oarchive archive(archive_stream);
archive << val;
uint32_t size = archive_stream.size();
size = htonl(size);
boost::asio::write(sock, boost::asio::buffer(&size, sizeof(size)));
boost::asio::write(sock, archive_stream);
}
}
#endif /* MPI_QUERIES_H_ */