f5759c5149
[ Merge of http://go/wvgerrit/137811 ] Renamed TimerMetric to Timer. Timer is used to generate durations included in metrics, but is not a metric itself. The method of getting the current time did not require creating an instance of std::steady_clock. Updated Distribution and Timer to use default initializers instead of constructor initialization list. Bug: 204946540 Test: Metric unit tests Change-Id: I7ed291b586347dd0b7ab305960883bec04637315
31 lines
822 B
C++
31 lines
822 B
C++
// Copyright 2017 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine License
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// Agreement.
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#include "timer_metric.h"
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namespace wvcdm {
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namespace metrics {
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using ClockType = std::chrono::steady_clock;
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using TimePoint = std::chrono::time_point<ClockType>;
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void Timer::Start() {
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start_ = ClockType::now();
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is_started_ = true;
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}
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void Timer::Clear() { is_started_ = false; }
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double Timer::AsMs() const {
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if (!is_started_) return 0.0;
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const TimePoint end = ClockType::now();
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return (end - start_) / std::chrono::milliseconds(1);
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}
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double Timer::AsUs() const {
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if (!is_started_) return 0.0;
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const TimePoint end = ClockType::now();
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return (end - start_) / std::chrono::microseconds(1);
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}
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} // namespace metrics
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} // namespace wvcdm
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