#include <future>
#include "Async.hpp"
#include "Thread.hpp"

/*
 * @project      The CERN Tape Archive (CTA)
 * @copyright    Copyright © 2021-2022 CERN
 * @license      This program is free software, distributed under the terms of the GNU General Public
 *               Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING". You can
 *               redistribute it and/or modify it under the terms of the GPL Version 3, 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.
 *
 *               In applying this licence, CERN does not waive the privileges and immunities
 *               granted to it by virtue of its status as an Intergovernmental Organization or
 *               submit itself to any jurisdiction.
 */
namespace cta { 
  Async::ThreadWrapper::ThreadWrapper(std::function<void()> callable):m_callable(callable){}

  void Async::ThreadWrapper::run(){
    try{
      m_callable();
      m_promise.set_value();
    } catch (...){
      m_promise.set_exception(std::current_exception());
    }
  }
  
  std::future<void> Async::async(std::function<void()> callable){
    std::future<void> ret;
    Async::ThreadWrapper threadCallable(callable);
    ret = threadCallable.m_promise.get_future();
    threadCallable.run();
    return ret;
  }
  
}