dft_tools/triqs/utility/serialization.hpp

/*******************************************************************************
 *
 * TRIQS: a Toolbox for Research in Interacting Quantum Systems
 *
 * Copyright (C) 2012 by M. Ferrero, O. Parcollet
 *
 * TRIQS is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * TRIQS. If not, see <http://www.gnu.org/licenses/>.
 *
 ******************************************************************************/
#ifndef TRIQS_SERIAL_H
#define TRIQS_SERIAL_H
#include <triqs/utility/first_include.hpp>
#include <triqs/utility/view_tools.hpp>
//#include <vector>
//#include <string>
#include <boost/iostreams/stream.hpp>
#include <boost/iostreams/device/back_inserter.hpp>
#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
#include <boost/serialization/complex.hpp>
#include <boost/serialization/vector.hpp>
#include <boost/serialization/string.hpp>

namespace triqs { 

 // serialize obj into an std::string
 template <typename T> std::string serialize (T const & obj) { 
  std::string serial_str;
  boost::iostreams::back_insert_device<std::string> inserter(serial_str);
  boost::iostreams::stream<boost::iostreams::back_insert_device<std::string> > s(inserter);
  //boost::archive::binary_oarchive oa(s);
  boost::archive::text_oarchive oa(s);
  oa << obj;
  s.flush();
  return serial_str;
 }

 template <typename T> T deserialize (std::string const & serial_str) { 
  T obj;
  // wrap buffer inside a stream and deserialize serial_str into obj
  boost::iostreams::basic_array_source<char> device(serial_str.data(), serial_str.size());
  boost::iostreams::stream<boost::iostreams::basic_array_source<char> > s(device);
  //boost::archive::binary_iarchive ia(s);
  boost::archive::text_iarchive ia(s);
  ia >> obj;
  return obj;
 }

 template <typename T> void deserialize_into_view (std::string const & serial_str, T & x) { 
  typename regular_type_if_exists_else_type<T>::type obj;
  // wrap buffer inside a stream and deserialize serial_str into obj
  boost::iostreams::basic_array_source<char> device(serial_str.data(), serial_str.size());
  boost::iostreams::stream<boost::iostreams::basic_array_source<char> > s(device);
  boost::archive::text_iarchive ia(s);
  //boost::archive::binary_iarchive ia(s);
  ia >> obj;
  x= typename view_type_if_exists_else_type<T>::type (obj);
 }
}
#endif