aaudio: prevent onAudioDeviceUpdate past close
To prevent late device update callbacks, the AudioStream
was made into a RefBase AudioDeviceCallback.
So now we can use a smart pointer to delay deletion of the
stream if any callbacks are in flight while the stream is closed.
So an AudioStream is now a RefBased object and can be used with
android::sp. That required some changes to the way it is referenced
in several places.
MyPlayerBase was modified to use a weak pointer to the parent stream.
Use delete[] for mDistributionBuffer
Bug: 161914201
Bug: 163165126
Bug: 164411271
Test: see bug for repro of the crash
Test: atest CtsNativeMediaAAudioTestCases
Change-Id: Ic24aca3eaf5d1610504bb89c06001a37d0d4a1c3
Merged-In: Ic24aca3eaf5d1610504bb89c06001a37d0d4a1c3
diff --git a/media/libaaudio/src/legacy/AudioStreamLegacy.cpp b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
index c062882..33c1bf5 100644
--- a/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamLegacy.cpp
@@ -34,8 +34,7 @@
using namespace aaudio;
AudioStreamLegacy::AudioStreamLegacy()
- : AudioStream()
- , mDeviceCallback(new StreamDeviceCallback(this)) {
+ : AudioStream() {
}
AudioStreamLegacy::~AudioStreamLegacy() {
@@ -163,7 +162,11 @@
}
void AudioStreamLegacy::forceDisconnect(bool errorCallbackEnabled) {
- if (getState() != AAUDIO_STREAM_STATE_DISCONNECTED) {
+ // There is no need to disconnect if already in these states.
+ if (getState() != AAUDIO_STREAM_STATE_DISCONNECTED
+ && getState() != AAUDIO_STREAM_STATE_CLOSING
+ && getState() != AAUDIO_STREAM_STATE_CLOSED
+ ) {
setState(AAUDIO_STREAM_STATE_DISCONNECTED);
if (errorCallbackEnabled) {
maybeCallErrorCallback(AAUDIO_ERROR_DISCONNECTED);
@@ -205,24 +208,30 @@
return AAudioConvert_androidToAAudioResult(status);
}
-void AudioStreamLegacy::onAudioDeviceUpdate(audio_port_handle_t deviceId)
-{
+void AudioStreamLegacy::onAudioDeviceUpdate(audio_io_handle_t /* audioIo */,
+ audio_port_handle_t deviceId) {
// Device routing is a common source of errors and DISCONNECTS.
- // Please leave this log in place.
- ALOGD("%s() devId %d => %d", __func__, (int) getDeviceId(), (int)deviceId);
- if (getDeviceId() != AAUDIO_UNSPECIFIED && getDeviceId() != deviceId &&
- getState() != AAUDIO_STREAM_STATE_DISCONNECTED) {
+ // Please leave this log in place. If there is a bug then this might
+ // get called after the stream has been deleted so log before we
+ // touch the stream object.
+ ALOGD("%s(deviceId = %d)", __func__, (int)deviceId);
+ if (getDeviceId() != AAUDIO_UNSPECIFIED
+ && getDeviceId() != deviceId
+ && getState() != AAUDIO_STREAM_STATE_DISCONNECTED
+ ) {
// Note that isDataCallbackActive() is affected by state so call it before DISCONNECTING.
// If we have a data callback and the stream is active, then ask the data callback
// to DISCONNECT and call the error callback.
if (isDataCallbackActive()) {
- ALOGD("onAudioDeviceUpdate() request DISCONNECT in data callback due to device change");
+ ALOGD("%s() request DISCONNECT in data callback, device %d => %d",
+ __func__, (int) getDeviceId(), (int) deviceId);
// If the stream is stopped before the data callback has a chance to handle the
// request then the requestStop() and requestPause() methods will handle it after
// the callback has stopped.
mRequestDisconnect.request();
} else {
- ALOGD("onAudioDeviceUpdate() DISCONNECT the stream now");
+ ALOGD("%s() DISCONNECT the stream now, device %d => %d",
+ __func__, (int) getDeviceId(), (int) deviceId);
forceDisconnect();
}
}