Thread and Track: Update to audio_utils mutex (87e82415) · Commits · e / os / android_frameworks_av

services/audioflinger/AudioFlinger.cpp

+19 −19

Original line number	Diff line number	Diff line
		@@ -318,7 +318,7 @@ status_t AudioFlinger::updateSecondaryOutputs(
		size_t i = 0;
		for (; i < mPlaybackThreads.size(); ++i) {
		IAfPlaybackThread* thread = mPlaybackThreads.valueAt(i).get();
		Mutex::Autolock _tl(thread->mutex());
		audio_utils::lock_guard _tl(thread->mutex());
		sp<IAfTrack> track = thread->getTrackById_l(trackId);
		if (track != nullptr) {
		ALOGD("%s trackId: %u", __func__, trackId);
		@@ -1089,7 +1089,7 @@ status_t AudioFlinger::createTrack(const media::CreateTrackRequest& _input,

		if (lStatus == NO_ERROR) {
		// no risk of deadlock because AudioFlinger::mutex() is held
		Mutex::Autolock _dl(thread->mutex());
		audio_utils::lock_guard _dl(thread->mutex());
		// Connect secondary outputs. Failure on a secondary output must not imped the primary
		// Any secondary output setup failure will lead to a desync between the AP and AF until
		// the track is destroyed.
		@@ -1097,7 +1097,7 @@ status_t AudioFlinger::createTrack(const media::CreateTrackRequest& _input,
		// move effect chain to this output thread if an effect on same session was waiting
		// for a track to be created
		if (effectThread != nullptr) {
		Mutex::Autolock _sl(effectThread->mutex());
		audio_utils::lock_guard _sl(effectThread->mutex());
		if (moveEffectChain_l(sessionId, effectThread, thread) == NO_ERROR) {
		effectThreadId = thread->id();
		effectIds = thread->getEffectIds_l(sessionId);
		@@ -2364,7 +2364,7 @@ status_t AudioFlinger::createRecord(const media::CreateRecordRequest& _input,
		// session and move it to this thread.
		sp<IAfEffectChain> chain = getOrphanEffectChain_l(sessionId);
		if (chain != 0) {
		Mutex::Autolock _l2(thread->mutex());
		audio_utils::lock_guard _l2(thread->mutex());
		thread->addEffectChain_l(chain);
		}
		break;
		@@ -3023,8 +3023,8 @@ status_t AudioFlinger::closeOutput_nonvirtual(audio_io_handle_t output)
		checkPlaybackThread_l(mPlaybackThreads.keyAt(0));
		if (dstThread != NULL) {
		// audioflinger lock is held so order of thread lock acquisition doesn't matter
		Mutex::Autolock _dl(dstThread->mutex());
		Mutex::Autolock _sl(playbackThread->mutex());
		audio_utils::lock_guard _dl(dstThread->mutex());
		audio_utils::lock_guard _sl(playbackThread->mutex());
		Vector<sp<IAfEffectChain>> effectChains = playbackThread->getEffectChains_l();
		for (size_t i = 0; i < effectChains.size(); i ++) {
		moveEffectChain_l(effectChains[i]->sessionId(), playbackThread.get(),
		@@ -3263,7 +3263,7 @@ status_t AudioFlinger::closeInput_nonvirtual(audio_io_handle_t input)
		// new capture on the same session
		sp<IAfEffectChain> chain;
		{
		Mutex::Autolock _sl(recordThread->mutex());
		audio_utils::lock_guard _sl(recordThread->mutex());
		const Vector<sp<IAfEffectChain>> effectChains = recordThread->getEffectChains_l();
		// Note: maximum one chain per record thread
		if (effectChains.size() != 0) {
		@@ -3281,7 +3281,7 @@ status_t AudioFlinger::closeInput_nonvirtual(audio_io_handle_t input)
		continue;
		}
		if (t->hasAudioSession(chain->sessionId()) != 0) {
		Mutex::Autolock _l2(t->mutex());
		audio_utils::lock_guard _l2(t->mutex());
		ALOGV("closeInput() found thread %d for effect session %d",
		t->id(), chain->sessionId());
		t->addEffectChain_l(chain);
		@@ -3465,7 +3465,7 @@ std::vector<sp<IAfEffectModule>> AudioFlinger::purgeStaleEffects_l() {

		for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
		sp<IAfPlaybackThread> t = mPlaybackThreads.valueAt(i);
		Mutex::Autolock _l(t->mutex());
		audio_utils::lock_guard _l(t->mutex());
		const Vector<sp<IAfEffectChain>> threadChains = t->getEffectChains_l();
		for (size_t j = 0; j < threadChains.size(); j++) {
		sp<IAfEffectChain> ec = threadChains[j];
		@@ -3477,7 +3477,7 @@ std::vector<sp<IAfEffectModule>> AudioFlinger::purgeStaleEffects_l() {

		for (size_t i = 0; i < mRecordThreads.size(); i++) {
		sp<IAfRecordThread> t = mRecordThreads.valueAt(i);
		Mutex::Autolock _l(t->mutex());
		audio_utils::lock_guard _l(t->mutex());
		const Vector<sp<IAfEffectChain>> threadChains = t->getEffectChains_l();
		for (size_t j = 0; j < threadChains.size(); j++) {
		sp<IAfEffectChain> ec = threadChains[j];
		@@ -3487,7 +3487,7 @@ std::vector<sp<IAfEffectModule>> AudioFlinger::purgeStaleEffects_l() {

		for (size_t i = 0; i < mMmapThreads.size(); i++) {
		const sp<IAfMmapThread> t = mMmapThreads.valueAt(i);
		Mutex::Autolock _l(t->mutex());
		audio_utils::lock_guard _l(t->mutex());
		const Vector<sp<IAfEffectChain>> threadChains = t->getEffectChains_l();
		for (size_t j = 0; j < threadChains.size(); j++) {
		sp<IAfEffectChain> ec = threadChains[j];
		@@ -3515,7 +3515,7 @@ std::vector<sp<IAfEffectModule>> AudioFlinger::purgeStaleEffects_l() {
		}
		}
		if (!found) {
		Mutex::Autolock _l(t->mutex());
		audio_utils::lock_guard _l(t->mutex());
		// remove all effects from the chain
		while (ec->numberOfEffects()) {
		sp<IAfEffectModule> effect = ec->getEffectModule(0);
		@@ -3747,7 +3747,7 @@ void AudioFlinger::updateSecondaryOutputsForTrack_l(
		// The frameCount should also not be smaller than the secondary thread min frame
		// count
		size_t minFrameCount = AudioSystem::calculateMinFrameCount(
		[&] { Mutex::Autolock _l(secondaryThread->mutex());
		[&] { audio_utils::lock_guard _l(secondaryThread->mutex());
		return secondaryThread->latency_l(); }(),
		secondaryThread->frameCount(), // normal frame count
		secondaryThread->sampleRate(),
		@@ -4193,7 +4193,7 @@ status_t AudioFlinger::createEffect(const media::CreateEffectRequest& request,
		// session and used it instead of creating a new one.
		sp<IAfEffectChain> chain = getOrphanEffectChain_l(sessionId);
		if (chain != 0) {
		Mutex::Autolock _l2(thread->mutex());
		audio_utils::lock_guard _l2(thread->mutex());
		thread->addEffectChain_l(chain);
		}
		}
		@@ -4285,8 +4285,8 @@ status_t AudioFlinger::moveEffects(audio_session_t sessionId, audio_io_handle_t
		return BAD_VALUE;
		}

		Mutex::Autolock _dl(dstThread->mutex());
		Mutex::Autolock _sl(srcThread->mutex());
		audio_utils::lock_guard _dl(dstThread->mutex());
		audio_utils::lock_guard _sl(srcThread->mutex());
		return moveEffectChain_l(sessionId, srcThread, dstThread);
		}

		@@ -4301,7 +4301,7 @@ void AudioFlinger::setEffectSuspended(int effectId,
		if (thread == nullptr) {
		return;
		}
		Mutex::Autolock _sl(thread->mutex());
		audio_utils::lock_guard _sl(thread->mutex());
		sp<IAfEffectModule> effect = thread->getEffect_l(sessionId, effectId);
		thread->setEffectSuspended_l(&effect->desc().type, suspended, sessionId);
		}
		@@ -4426,8 +4426,8 @@ status_t AudioFlinger::moveAuxEffectToIo(int EffectId,
		const sp<IAfPlaybackThread> thread = threadBase ? threadBase->asIAfPlaybackThread() : nullptr;

		if (EffectId != 0 && thread != 0 && dstThread != thread.get()) {
		Mutex::Autolock _dl(dstThread->mutex());
		Mutex::Autolock _sl(thread->mutex());
		audio_utils::lock_guard _dl(dstThread->mutex());
		audio_utils::lock_guard _sl(thread->mutex());
		sp<IAfEffectChain> srcChain = thread->getEffectChain_l(AUDIO_SESSION_OUTPUT_MIX);
		sp<IAfEffectChain> dstChain;
		if (srcChain == 0) {

services/audioflinger/IAfThread.h

+1 −2

Original line number	Diff line number	Diff line
		@@ -31,7 +31,6 @@
		#include <media/audiohal/StreamHalInterface.h>
		#include <media/nblog/NBLog.h>
		#include <timing/SyncEvent.h>
		#include <utils/Mutex.h>
		#include <utils/RefBase.h>
		#include <vibrator/ExternalVibration.h>

		@@ -311,7 +310,7 @@ public:
		// deliver stats to mediametrics.
		virtual void sendStatistics(bool force) = 0;

		virtual Mutex& mutex() const = 0;
		virtual audio_utils::mutex& mutex() const = 0;

		virtual void onEffectEnable(const sp<IAfEffectModule>& effect) = 0;
		virtual void onEffectDisable() = 0;

services/audioflinger/PlaybackTracks.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -468,7 +468,8 @@ private:
		*/
		SourceMetadatas mTrackMetadatas;
		/** Protects mTrackMetadatas against concurrent access. */
		mutable audio_utils::mutex mTrackMetadatasMutex;
		audio_utils::mutex& trackMetadataMutex() const { return mTrackMetadataMutex; }
		mutable audio_utils::mutex mTrackMetadataMutex;
		}; // end of OutputTrack

		// playback track, used by PatchPanel

services/audioflinger/Threads.cpp

+208 −206

File changed.

Preview size limit exceeded, changes collapsed.

services/audioflinger/Threads.h

+29 −25

Original line number	Diff line number	Diff line
		@@ -77,20 +77,20 @@ public:

		// Config event sequence by client if status needed (e.g binder thread calling setParameters()):
		// 1. create SetParameterConfigEvent. This sets mWaitStatus in config event
		// 2. Lock mLock
		// 2. Lock mutex()
		// 3. Call sendConfigEvent_l(): Append to mConfigEvents and mWaitWorkCV.signal
		// 4. sendConfigEvent_l() reads status from event->mStatus;
		// 5. sendConfigEvent_l() returns status
		// 6. Unlock
		//
		// Parameter sequence by server: threadLoop calling processConfigEvents_l():
		// 1. Lock mLock
		// 1. Lock mutex()
		// 2. If there is an entry in mConfigEvents proceed ...
		// 3. Read first entry in mConfigEvents
		// 4. Remove first entry from mConfigEvents
		// 5. Process
		// 6. Set event->mStatus
		// 7. event->mCond.signal
		// 7. event->mCondition.notify_one()
		// 8. Unlock

		class ConfigEvent: public RefBase {
		@@ -103,9 +103,10 @@ public:
		}
		}

		audio_utils::mutex& mutex() const { return mMutex; }
		const int mType; // event type e.g. CFG_EVENT_IO
		Mutex mLock; // mutex associated with mCond
		Condition mCond; // condition for status return
		mutable audio_utils::mutex mMutex; // mutex associated with mCondition
		audio_utils::condition_variable mCondition; // condition for status return
		status_t mStatus; // status communicated to sender
		bool mWaitStatus; // true if sender is waiting for status
		bool mRequiresSystemReady; // true if must wait for system ready to enter event queue
		@@ -322,7 +323,7 @@ public:
		void exit() final;
		status_t setParameters(const String8& keyValuePairs) final;

		// sendConfigEvent_l() must be called with ThreadBase::mLock held
		// sendConfigEvent_l() must be called with ThreadBase::mutex() held
		// Can temporarily release the lock if waiting for a reply from
		// processConfigEvents_l().
		status_t sendConfigEvent_l(sp<ConfigEvent>& event);
		@@ -439,7 +440,7 @@ public:
		// TODO(b/291317898) - remove hasAudioSession_l below.
		uint32_t hasAudioSession_l(audio_session_t sessionId) const override = 0;
		uint32_t hasAudioSession(audio_session_t sessionId) const final {
		Mutex::Autolock _l(mLock);
		std::lock_guard _l(mutex());
		return hasAudioSession_l(sessionId);
		}

		@@ -507,19 +508,19 @@ public:
		// deliver stats to mediametrics.
		void sendStatistics(bool force) final;

		Mutex& mutex() const final {
		return mLock;
		audio_utils::mutex& mutex() const final {
		return mMutex;
		}
		mutable Mutex mLock;
		mutable audio_utils::mutex mMutex;

		void onEffectEnable(const sp<IAfEffectModule>& effect) final;
		void onEffectDisable() final;

		// invalidateTracksForAudioSession_l must be called with holding mLock.
		// invalidateTracksForAudioSession_l must be called with holding mutex().
		void invalidateTracksForAudioSession_l(audio_session_t /* sessionId */) const override {}
		// Invalidate all the tracks with the given audio session.
		void invalidateTracksForAudioSession(audio_session_t sessionId) const final {
		Mutex::Autolock _l(mLock);
		std::lock_guard _l(mutex());
		invalidateTracksForAudioSession_l(sessionId);
		}

		@@ -599,7 +600,7 @@ protected:
		const type_t mType;

		// Used by parameters, config events, addTrack_l, exit
		Condition mWaitWorkCV;
		audio_utils::condition_variable mWaitWorkCV;

		const sp<IAfThreadCallback> mAfThreadCallback;
		ThreadMetrics mThreadMetrics;
		@@ -1041,7 +1042,7 @@ public:
		}

		void setDownStreamPatch(const struct audio_patch* patch) final {
		Mutex::Autolock _l(mLock);
		std::lock_guard _l(mutex());
		mDownStreamPatch = *patch;
		}

		@@ -1067,7 +1068,7 @@ public:
		void stopMelComputation_l() override;

		void setStandby() final {
		Mutex::Autolock _l(mLock);
		std::lock_guard _l(mutex());
		setStandby_l();
		}

		@@ -1079,7 +1080,7 @@ public:
		}

		bool waitForHalStart() final {
		Mutex::Autolock _l(mLock);
		audio_utils::unique_lock _l(mutex());
		static const nsecs_t kWaitHalTimeoutNs = seconds(2);
		nsecs_t endWaitTimetNs = systemTime() + kWaitHalTimeoutNs;
		while (!mHalStarted) {
		@@ -1088,7 +1089,7 @@ public:
		break;
		}
		nsecs_t waitTimeLeftNs = endWaitTimetNs - timeNs;
		mWaitHalStartCV.waitRelative(mLock, waitTimeLeftNs);
		mWaitHalStartCV.wait_for(_l, std::chrono::nanoseconds(waitTimeLeftNs));
		}
		return mHalStarted;
		}
		@@ -1369,7 +1370,8 @@ protected:

		sp<AsyncCallbackThread> mCallbackThread;

		Mutex mAudioTrackCbLock;
		audio_utils::mutex& audioTrackCbMutex() const { return mAudioTrackCbMutex; }
		mutable audio_utils::mutex mAudioTrackCbMutex;
		// Record of IAudioTrackCallback
		std::map<sp<IAfTrack>, sp<media::IAudioTrackCallback>> mAudioTrackCallbacks;

		@@ -1390,7 +1392,7 @@ protected:

		// output stream start detection based on render position returned by the kernel
		// condition signalled when the output stream has started
		Condition mWaitHalStartCV;
		audio_utils::condition_variable mWaitHalStartCV;
		// true when the output stream render position has moved, reset to false in standby
		bool mHalStarted = false;
		// last kernel render position saved when entering standby
		@@ -1717,9 +1719,11 @@ private:
		// setDraining(). The sequence is shifted one bit to the left and the lsb is used
		// to indicate that the callback has been received via resetDraining()
		uint32_t mDrainSequence;
		Condition mWaitWorkCV;
		Mutex mLock;
		audio_utils::condition_variable mWaitWorkCV;
		mutable audio_utils::mutex mMutex;
		bool mAsyncError;

		audio_utils::mutex& mutex() const { return mMutex; }
		};

		class DuplicatingThread : public MixerThread, public IAfDuplicatingThread {
		@@ -1976,10 +1980,10 @@ private:
		Source *mSource;
		SortedVector <sp<IAfRecordTrack>> mTracks;
		// mActiveTracks has dual roles: it indicates the current active track(s), and
		// is used together with mStartStopCond to indicate start()/stop() progress
		// is used together with mStartStopCV to indicate start()/stop() progress
		ActiveTracks<IAfRecordTrack> mActiveTracks;

		Condition mStartStopCond;
		audio_utils::condition_variable mStartStopCV;

		// resampler converts input at HAL Hz to output at AudioRecord client Hz
		void *mRsmpInBuffer; // size = mRsmpInFramesOA
		@@ -2081,7 +2085,7 @@ class MmapThread : public ThreadBase, public virtual IAfMmapThread
		virtual void threadLoop_exit() final;
		virtual void threadLoop_standby() final;
		virtual bool shouldStandby_l() final { return false; }
		virtual status_t exitStandby_l() REQUIRES(mLock);
		virtual status_t exitStandby_l() REQUIRES(mutex());

		status_t initCheck() const final { return mHalStream == nullptr ? NO_INIT : NO_ERROR; }
		size_t frameCount() const final { return mFrameCount; }
		@@ -2245,7 +2249,7 @@ public:

		AudioStreamIn* clearInput() final;

		status_t exitStandby_l() REQUIRES(mLock) final;
		status_t exitStandby_l() REQUIRES(mutex()) final;

		MetadataUpdate updateMetadata_l() final;
		void processVolume_l() final;