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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* 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 "AudioSink.h"
#include "AudioSinkWrapper.h"
#include "CubebUtils.h"
#include "MockCubeb.h"
#include "TimeUnits.h"
#include "gmock/gmock.h"
#include "gtest/gtest-printers.h"
#include "gtest/gtest.h"
#include "mozilla/SpinEventLoopUntil.h"
#include "mozilla/gtest/WaitFor.h"
#include "nsThreadManager.h"
#include "nsThreadUtils.h"
using namespace mozilla;
// This is a crashtest to check that AudioSinkWrapper::mEndedPromiseHolder is
// not settled twice when sync and async AudioSink initializations race.
TEST(TestAudioSinkWrapper, AsyncInitFailureWithSyncInitSuccess)
{
MockCubeb* cubeb = new MockCubeb();
CubebUtils::ForceSetCubebContext(cubeb->AsCubebContext());
MediaQueue<AudioData> audioQueue;
MediaInfo info;
info.EnableAudio();
auto audioSinkCreator = [&]() {
return UniquePtr<AudioSink>{new AudioSink(AbstractThread::GetCurrent(),
audioQueue, info.mAudio,
/*resistFingerprinting*/ false)};
};
const double initialVolume = 0.0; // so that there is initially no AudioSink
RefPtr wrapper = new AudioSinkWrapper(
AbstractThread::GetCurrent(), audioQueue, std::move(audioSinkCreator),
initialVolume, /*playbackRate*/ 1.0, /*preservesPitch*/ true,
/*sinkDevice*/ nullptr);
wrapper->Start(media::TimeUnit::Zero(), info);
// The first AudioSink init occurs on a background thread. Listen for this,
// but don't process any events on the current thread so that the
// AudioSinkWrapper does not yet handle the result of AudioSink
// initialization.
RefPtr backgroundQueue =
nsThreadManager::get().CreateBackgroundTaskQueue(__func__);
Monitor monitor(__func__);
bool initDone = false;
MediaEventListener initListener = cubeb->StreamInitEvent().Connect(
backgroundQueue, [&](RefPtr<SmartMockCubebStream> aStream) {
EXPECT_EQ(aStream, nullptr);
MonitorAutoLock lock(monitor);
initDone = true;
lock.Notify();
});
cubeb->ForceStreamInitError();
wrapper->SetVolume(0.5); // triggers async sink init, which fails
{
// Wait for the async init to complete.
MonitorAutoLock lock(monitor);
while (!initDone) {
lock.Wait();
}
}
initListener.Disconnect();
wrapper->SetPlaying(false);
// The second AudioSink init is synchronous.
nsIThread* currentThread = NS_GetCurrentThread();
RefPtr<SmartMockCubebStream> stream;
initListener = cubeb->StreamInitEvent().Connect(
currentThread, [&](RefPtr<SmartMockCubebStream> aStream) {
stream = std::move(aStream);
});
wrapper->SetPlaying(true); // sync sink init, which succeeds
// Let AudioSinkWrapper handle the (first) AudioSink initialization failure
// and allow `stream` to be set.
NS_ProcessPendingEvents(currentThread);
initListener.Disconnect();
cubeb_state state = CUBEB_STATE_STARTED;
MediaEventListener stateListener = stream->StateEvent().Connect(
currentThread, [&](cubeb_state aState) { state = aState; });
// Run AudioSinkWrapper::OnAudioEnded().
// This test passes if there is no crash. Bug 1845811.
audioQueue.Finish();
SpinEventLoopUntil("stream state change"_ns,
[&] { return state != CUBEB_STATE_STARTED; });
stateListener.Disconnect();
EXPECT_EQ(state, CUBEB_STATE_DRAINED);
wrapper->Stop();
wrapper->Shutdown();
}
// This is a crashtest to check that AudioSinkWrapper::mEndedPromiseHolder is
// not settled twice when the audio ends during async AudioSink initialization.
TEST(TestAudioSinkWrapper, AsyncInitWithEndOfAudio)
{
MockCubeb* cubeb = new MockCubeb();
CubebUtils::ForceSetCubebContext(cubeb->AsCubebContext());
MediaQueue<AudioData> audioQueue;
MediaInfo info;
info.EnableAudio();
auto audioSinkCreator = [&]() {
return UniquePtr<AudioSink>{new AudioSink(AbstractThread::GetCurrent(),
audioQueue, info.mAudio,
/*resistFingerprinting*/ false)};
};
const double initialVolume = 0.0; // so that there is initially no AudioSink
RefPtr wrapper = new AudioSinkWrapper(
AbstractThread::GetCurrent(), audioQueue, std::move(audioSinkCreator),
initialVolume, /*playbackRate*/ 1.0, /*preservesPitch*/ true,
/*sinkDevice*/ nullptr);
wrapper->Start(media::TimeUnit::Zero(), info);
// The first AudioSink init occurs on a background thread. Listen for this,
// but don't process any events on the current thread so that the
// AudioSinkWrapper does not yet use the initialized AudioSink.
RefPtr backgroundQueue =
nsThreadManager::get().CreateBackgroundTaskQueue(__func__);
Monitor monitor(__func__);
RefPtr<SmartMockCubebStream> stream;
MediaEventListener initListener = cubeb->StreamInitEvent().Connect(
backgroundQueue, [&](RefPtr<SmartMockCubebStream> aStream) {
EXPECT_NE(aStream, nullptr);
MonitorAutoLock lock(monitor);
stream = std::move(aStream);
lock.Notify();
});
wrapper->SetVolume(0.5); // triggers async sink init
{
// Wait for the async init to complete.
MonitorAutoLock lock(monitor);
while (!stream) {
lock.Wait();
}
}
initListener.Disconnect();
// Finish the audio before AudioSinkWrapper considers using the initialized
// AudioSink.
audioQueue.Finish();
// Wait for AudioSinkWrapper to destroy the initialized stream.
// This test passes if there is no crash. Bug 1846854.
WaitFor(cubeb->StreamDestroyEvent());
wrapper->Stop();
wrapper->Shutdown();
}
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