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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "Tracing.h"
#include <inttypes.h>
using namespace mozilla;
using TracingPhase = mozilla::AsyncLogger::TracingPhase;
mozilla::AsyncLogger gAudioCallbackTraceLogger("AudioCallbackTracing");
static std::atomic<int> gTracingStarted(0);
void StartAudioCallbackTracing() {
#ifdef TRACING
int cnt = gTracingStarted.fetch_add(1, std::memory_order_seq_cst);
if (cnt == 0) {
// This is a noop if the logger has not been enabled.
gAudioCallbackTraceLogger.Start();
}
#endif
}
void StopAudioCallbackTracing() {
#ifdef TRACING
int cnt = gTracingStarted.fetch_sub(1, std::memory_order_seq_cst);
if (cnt == 1) {
// This is a noop if the logger has not been enabled.
gAudioCallbackTraceLogger.Stop();
}
#endif
}
void AutoTracer::PrintEvent(const char* aName, const char* aCategory,
const char* aComment, TracingPhase aPhase) {
mLogger.Log(aName, aCategory, aComment, aPhase);
}
void AutoTracer::PrintBudget(const char* aName, const char* aCategory,
uint64_t aDuration, uint64_t aFrames,
uint64_t aSampleRate) {
mLogger.LogDuration(aName, aCategory, aDuration, aFrames, aSampleRate);
}
AutoTracer::AutoTracer(AsyncLogger& aLogger, const char* aLocation,
EventType aEventType, uint64_t aFrames,
uint64_t aSampleRate)
: mLogger(aLogger),
mLocation(aLocation),
mComment(nullptr),
mEventType(aEventType) {
MOZ_ASSERT(aEventType == EventType::BUDGET);
if (aLogger.Enabled()) {
float durationUS = (static_cast<float>(aFrames) / aSampleRate) * 1e6;
PrintBudget(aLocation, "perf", durationUS, aFrames, aSampleRate);
}
}
AutoTracer::AutoTracer(AsyncLogger& aLogger, const char* aLocation,
EventType aEventType, const char* aComment)
: mLogger(aLogger),
mLocation(aLocation),
mComment(aComment),
mEventType(aEventType) {
MOZ_ASSERT(aEventType == EventType::DURATION);
if (aLogger.Enabled()) {
PrintEvent(aLocation, "perf", mComment, AsyncLogger::TracingPhase::BEGIN);
}
}
AutoTracer::~AutoTracer() {
if (mEventType == EventType::DURATION) {
if (mLogger.Enabled()) {
PrintEvent(mLocation, "perf", mComment, AsyncLogger::TracingPhase::END);
}
}
}