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83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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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#include <inttypes.h>
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using namespace mozilla;
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using TracingPhase = mozilla::AsyncLogger::TracingPhase;
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mozilla::AsyncLogger gAudioCallbackTraceLogger;
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static std::atomic<int> gTracingStarted(0);
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void StartAudioCallbackTracing() {
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#ifdef 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 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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mLogger.Log(aName, aCategory, aComment, aPhase);
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}
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void AutoTracer::PrintBudget(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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mLogger.LogDuration(aName, aCategory, aDuration, aFrames, aSampleRate);
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}
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AutoTracer::AutoTracer(AsyncLogger& aLogger, const char* aLocation,
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EventType aEventType, 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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mEventType(aEventType) {
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MOZ_ASSERT(aEventType == EventType::BUDGET);
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if (aLogger.Enabled()) {
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float durationUS = (static_cast<float>(aFrames) / aSampleRate) * 1e6;
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PrintBudget(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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EventType aEventType, 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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mEventType(aEventType) {
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MOZ_ASSERT(aEventType == EventType::DURATION);
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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 (mEventType == EventType::DURATION) {
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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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