serge-sans-paille
c68e95f4d0
Differential Revision: https://phabricator.services.mozilla.com/D295778
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "Tracing.h"
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using namespace mozilla;
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using TracingPhase = mozilla::AsyncLogger::TracingPhase;
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MOZ_RUNINIT mozilla::AsyncLogger gAudioCallbackTraceLogger;
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static std::atomic<int> gTracingStarted(0);
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void StartAudioCallbackTracing() {
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#ifdef MOZ_REAL_TIME_TRACING
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int cnt = gTracingStarted.fetch_add(1, std::memory_order_seq_cst);
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if (cnt == 0) {
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// This is a noop if the logger has not been enabled.
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gAudioCallbackTraceLogger.Start();
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}
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#endif
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}
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void StopAudioCallbackTracing() {
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#ifdef MOZ_REAL_TIME_TRACING
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int cnt = gTracingStarted.fetch_sub(1, std::memory_order_seq_cst);
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if (cnt == 1) {
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// This is a noop if the logger has not been enabled.
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gAudioCallbackTraceLogger.Stop();
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}
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#endif
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}
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void AutoTracer::PrintEvent(const char* aName, const char* aCategory,
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const char* aComment, TracingPhase aPhase) {
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#ifdef MOZ_REAL_TIME_TRACING
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mLogger.Log(aName, aCategory, aComment, aPhase);
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#endif
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}
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void AutoTracer::PrintDuration(const char* aName, const char* aCategory,
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uint64_t aDuration, uint64_t aFrames,
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uint64_t aSampleRate) {
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#ifdef MOZ_REAL_TIME_TRACING
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mLogger.LogDuration(aName, aCategory, aDuration, aFrames, aSampleRate);
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#endif
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}
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AutoTracer::AutoTracer(AsyncLogger& aLogger, const char* aLocation,
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DurationType aDurationType, uint64_t aFrames,
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uint64_t aSampleRate)
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: mLogger(aLogger),
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mLocation(aLocation),
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mComment(nullptr),
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mDurationType(aDurationType) {
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MOZ_ASSERT(aDurationType == DurationType::FRAME_COUNT);
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if (aLogger.Enabled()) {
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float durationUS = (static_cast<float>(aFrames) / aSampleRate) * 1e6;
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PrintDuration(aLocation, "perf", durationUS, aFrames, aSampleRate);
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}
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}
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AutoTracer::AutoTracer(AsyncLogger& aLogger, const char* aLocation,
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DurationType aDurationType, const char* aComment)
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: mLogger(aLogger),
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mLocation(aLocation),
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mComment(aComment),
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mDurationType(aDurationType) {
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MOZ_ASSERT(aDurationType == DurationType::ELAPSED_TIME);
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if (aLogger.Enabled()) {
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PrintEvent(aLocation, "perf", mComment, AsyncLogger::TracingPhase::BEGIN);
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}
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}
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AutoTracer::~AutoTracer() {
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if (mDurationType == DurationType::ELAPSED_TIME) {
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if (mLogger.Enabled()) {
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PrintEvent(mLocation, "perf", mComment, AsyncLogger::TracingPhase::END);
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}
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}
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}
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