polardbxengine/plugin/polarx_rpc/helper/chrono.h

55 lines
1.9 KiB
C++

/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2.0,
* as published by the Free Software Foundation.
*
* This program is also distributed with certain software (including
* but not limited to OpenSSL) that is licensed under separate terms,
* as designated in a particular file or component or in included license
* documentation. The authors of MySQL hereby grant you an additional
* permission to link the program and your derivative works with the
* separately licensed software that they have included with MySQL.
*
* 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, version 2.0, 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <chrono> // NOLINT(build/c++11)
namespace polarx_rpc {
namespace chrono {
using Milliseconds = std::chrono::milliseconds;
using Seconds = std::chrono::seconds;
using System_clock = std::chrono::system_clock;
using Clock = std::chrono::steady_clock;
using Time_point = Clock::time_point;
using Duration = Clock::duration;
inline Time_point now() { return Clock::now(); }
inline Milliseconds::rep to_milliseconds(const Duration &d) {
return std::chrono::duration_cast<Milliseconds>(d).count();
}
inline Seconds::rep to_seconds(const Duration &d) {
return std::chrono::duration_cast<Seconds>(d).count();
}
inline bool is_valid(const Time_point &p) {
return p.time_since_epoch().count() > 0;
}
} // namespace chrono
} // namespace polarx_rpc