dft_tools/triqs/utility/callbacks.cpp

/*******************************************************************************
 *
 * TRIQS: a Toolbox for Research in Interacting Quantum Systems
 *
 * Copyright (C) 2011 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/>.
 *
 ******************************************************************************/

#include "callbacks.hpp"
#include "signal_handler.hpp"
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/bind.hpp>

namespace triqs { 
 namespace utility { 

  bool clock_callback_impl(boost::posix_time::ptime const & end_time) {
   return (!triqs::signal_handler().empty()) || boost::posix_time::second_clock::local_time() > end_time;
  }

  bool false_callback_impl() {   return (!triqs::signal_handler().empty());}

  boost::function<bool ()> clock_callback(int time_in_seconds) {
   return (time_in_seconds>0 ?
     boost::bind(&clock_callback_impl, boost::posix_time::second_clock::local_time() + boost::posix_time::seconds(time_in_seconds)) : 
     boost::function<bool ()> (&false_callback_impl));
  }

 }
};