mirror of https://gitee.com/bigwinds/arangodb
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2018 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Christoph Uhde
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_UTILITIES_TIMER_H
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#define ARANGODB_UTILITIES_TIMER_H 1
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#include <Logger/Logger.h>
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#include <chrono>
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#include <string>
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namespace arangodb {
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namespace Utilities {
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// This class is intended for debugging purpose only and is not meant
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// to be included into any released code.
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struct timer {
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using ns = ::std::chrono::nanoseconds;
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using clock = ::std::chrono::high_resolution_clock;
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using point = ::std::chrono::time_point<clock, ns>;
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std::string _name;
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point _start;
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bool _released;
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timer(std::string const& name = "unnamed")
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: _name(" - " + name), _start(clock::now()), _released(false) {}
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~timer() {
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if (!_released) {
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release();
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}
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}
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void release() {
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LOG_TOPIC("f94c5", ERR, Logger::FIXME)
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<< "## ## ## timer" << _name << ":" << std::fixed
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<< diff(_start, clock::now()) / (double)std::giga::num << "s";
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_released = true;
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}
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std::uint64_t diff(point const& start, point const& end) {
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return (end - start).count();
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}
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};
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} // namespace Utilities
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} // namespace arangodb
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#endif
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