aaudio: fix audioserver crash when starting a stream is rejected am: b92c988ffc (70ab327c) · Commits · e / os / android_frameworks_av

services/oboeservice/AAudioServiceEndpointShared.cpp

+22 −5

Original line number	Diff line number	Diff line
		@@ -115,15 +115,33 @@ aaudio_result_t aaudio::AAudioServiceEndpointShared::stopSharingThread() {
		aaudio_result_t AAudioServiceEndpointShared::startStream(sp<AAudioServiceStreamBase> sharedStream,
		audio_port_handle_t *clientHandle) {
		aaudio_result_t result = AAUDIO_OK;
		if (++mRunningStreamCount == 1) {
		// TODO use real-time technique to avoid mutex, eg. atomic command FIFO

		{
		std::lock_guard<std::mutex> lock(mLockStreams);
		if (++mRunningStreamCount == 1) { // atomic
		result = getStreamInternal()->requestStart();
		startSharingThread_l();
		if (result != AAUDIO_OK) {
		--mRunningStreamCount;
		} else {
		result = startSharingThread_l();
		if (result != AAUDIO_OK) {
		getStreamInternal()->requestStop();
		--mRunningStreamCount;
		}
		}
		}
		}

		if (result == AAUDIO_OK) {
		result = getStreamInternal()->startClient(sharedStream->getAudioClient(), clientHandle);
		if (result != AAUDIO_OK) {
		if (--mRunningStreamCount == 0) { // atomic
		stopSharingThread();
		getStreamInternal()->requestStop();
		}
		}
		}

		return result;
		}

		@@ -141,7 +159,6 @@ aaudio_result_t AAudioServiceEndpointShared::stopStream(sp<AAudioServiceStreamBa
		return AAUDIO_OK;
		}


		// Get timestamp that was written by the real-time service thread, eg. mixer.
		aaudio_result_t AAudioServiceEndpointShared::getFreeRunningPosition(int64_t *positionFrames,
		int64_t *timeNanos) {