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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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.
*/
#include "mongo/db/exec/scoped_timer.h"
#include "mongo/platform/compiler.h"
#include "mongo/bson/bsonobjbuilder.h"
namespace mongo {
ScopedTimer::ScopedTimer(Nanoseconds* counter, TickSource* ts)
: _counter(counter), _tickSource(ts), _clockSource(nullptr), _startTS(ts->getTicks()) {}
ScopedTimer::ScopedTimer(Nanoseconds* counter, ClockSource* cs)
: _counter(counter), _tickSource(nullptr), _clockSource(cs), _startCS(cs->now()) {}
ScopedTimer::~ScopedTimer() {
if (MONGO_likely(_clockSource)) {
*_counter += Nanoseconds{
(durationCount<Milliseconds>(_clockSource->now() - _startCS) * 1000 * 1000)};
return;
}
if (_tickSource) {
*_counter += _tickSource->ticksTo<Nanoseconds>(_tickSource->getTicks() - _startTS);
}
}
TimeElapsedBuilderScopedTimer::TimeElapsedBuilderScopedTimer(ClockSource* clockSource,
StringData description,
BSONObjBuilder* builder)
: _clockSource(clockSource),
_description(description),
_beginTime(clockSource->now()),
_builder(builder) {}
TimeElapsedBuilderScopedTimer::~TimeElapsedBuilderScopedTimer() {
mongo::Milliseconds elapsedTime = _clockSource->now() - _beginTime;
_builder->append(_description, elapsedTime.toString());
}
boost::optional<TimeElapsedBuilderScopedTimer> createTimeElapsedBuilderScopedTimer(
ClockSource* clockSource, StringData description, BSONObjBuilder* builder) {
if (builder == nullptr) {
return boost::none;
}
return boost::optional<TimeElapsedBuilderScopedTimer>(
boost::in_place_init, clockSource, description, builder);
}
} // namespace mongo
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