/**
 *    Copyright (C) 2015 MongoDB Inc.
 *
 *    This program is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    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 Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *    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 program with the OpenSSL library. You
 *    must comply with the GNU Affero General Public License in all respects for
 *    all of the code used other than as permitted herein. 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 in the license file.
 */

#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kASIO

#include "mongo/platform/basic.h"

#include "mongo/executor/async_timer_asio.h"

#include "mongo/stdx/memory.h"
#include "mongo/util/log.h"

namespace mongo {
namespace executor {

AsyncTimerASIO::AsyncTimerASIO(asio::io_service::strand* strand, Milliseconds expiration)
    : _strand(strand), _timer(_strand->get_io_service(), expiration.toSystemDuration()) {}

void AsyncTimerASIO::cancel() {
    std::error_code ec;
    _timer.cancel(ec);
    if (ec) {
        log() << "Failed to cancel timer: " << ec.message();
    }
}

void AsyncTimerASIO::asyncWait(AsyncTimerInterface::Handler handler) {
    _timer.async_wait(_strand->wrap(std::move(handler)));
}

std::unique_ptr<AsyncTimerInterface> AsyncTimerFactoryASIO::make(asio::io_service::strand* strand,
                                                                 Milliseconds expiration) {
    return stdx::make_unique<AsyncTimerASIO>(strand, expiration);
}

Date_t AsyncTimerFactoryASIO::now() {
    return Date_t::fromDurationSinceEpoch(asio::system_timer::clock_type::now() -
                                          asio::system_timer::clock_type::from_time_t(0));
}

}  // namespace executor
}  // namespace mongo