aria2/src/SleepCommand.cc

/* <!-- copyright */
/*
 * aria2 - The high speed download utility
 *
 * Copyright (C) 2006 Tatsuhiro Tsujikawa
 *
 * 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 2 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 should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
 * version.  If you delete this exception statement from all source
 * files in the program, then also delete it here.
 */
/* copyright --> */
#include "SleepCommand.h"
#include "Util.h"
#include "RequestGroupAware.h"
#include "RequestGroup.h"

SleepCommand::SleepCommand(int32_t cuid, DownloadEngine* e, Command* nextCommand, int32_t wait):
  Command(cuid), engine(e), nextCommand(nextCommand), wait(wait) {}

SleepCommand::~SleepCommand() {
  if(nextCommand) {
    delete(nextCommand);
  }
}

bool SleepCommand::execute() {
  if(checkPoint.elapsed(wait) || isHaltRequested()) {
    engine->commands.push_back(nextCommand);
    nextCommand = 0;
    return true;
  } else {
    engine->commands.push_back(this);
    return false;
  }
}

bool SleepCommand::isHaltRequested() const
{
  if(engine->isHaltRequested()) {
    return true;
  }
  RequestGroupAware* requestGroupAware = dynamic_cast<RequestGroupAware*>(nextCommand);
  if(requestGroupAware) {
    if(requestGroupAware->getRequestGroup()->isHaltRequested()) {
      return true;
    }
  }
  return false;
}