callbacks.cpp

// Copyright (c) 2013-2018 Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
// Copyright (c) 2013-2018 Centre national de la recherche scientifique (CNRS)
// Copyright (c) 2018 Simons Foundation
//
// This program 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.
//
// This program 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 may obtain a copy of the License at
//     https://www.gnu.org/licenses/gpl-3.0.txt
//
// Authors: Olivier Parcollet, Nils Wentzell
 
#include "./callbacks.hpp"
#include "./signal_handler.hpp"
 
#include <chrono>
#include <functional>
 
namespace triqs::utility {
 
  std::function<bool()> clock_callback(int time_in_seconds) {
    signal_handler::start();
    if (time_in_seconds <= 0) return []() { return false; };
 
    auto end_time = std::chrono::system_clock::now() + std::chrono::seconds(time_in_seconds);
    return [end_time]() { return (std::chrono::system_clock::now() > end_time); };
  }
 
} // namespace triqs::utility