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Prevent modifying mAudioPolicies during iteration

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Calling release on a policy from mAudioPolicies removes a key from the
map, causing a ConcurrentHashException.
Defer releases till after iteration completes.

Test: Compiles
Bug: 240314224
Change-Id: I83fa969204d8a9c6ac7bae40f5be57a92813f6be
This commit is contained in:
Atneya Nair
2022-07-26 15:24:16 -07:00
parent d4384a5ff2
commit 6f837517a2
1 changed files with 5 additions and 2 deletions
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7
services/core/java/com/android/server/audio/AudioService.java
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@@ -1572,6 +1572,7 @@ public class AudioService extends IAudioService.Stub
} }
synchronized (mAudioPolicies) { synchronized (mAudioPolicies) {
ArrayList<AudioPolicyProxy> invalidProxies = new ArrayList<>();
for (AudioPolicyProxy policy : mAudioPolicies.values()) { for (AudioPolicyProxy policy : mAudioPolicies.values()) {
final int status = policy.connectMixes(); final int status = policy.connectMixes();
if (status != AudioSystem.SUCCESS) { if (status != AudioSystem.SUCCESS) {
@@ -1579,7 +1580,7 @@ public class AudioService extends IAudioService.Stub
Log.e(TAG, "onAudioServerDied: error " Log.e(TAG, "onAudioServerDied: error "
+ AudioSystem.audioSystemErrorToString(status) + AudioSystem.audioSystemErrorToString(status)
+ " when connecting mixes for policy " + policy.toLogFriendlyString()); + " when connecting mixes for policy " + policy.toLogFriendlyString());
policy.release(); invalidProxies.add(policy);
} else { } else {
final int deviceAffinitiesStatus = policy.setupDeviceAffinities(); final int deviceAffinitiesStatus = policy.setupDeviceAffinities();
if (deviceAffinitiesStatus != AudioSystem.SUCCESS) { if (deviceAffinitiesStatus != AudioSystem.SUCCESS) {
@@ -1587,10 +1588,12 @@ public class AudioService extends IAudioService.Stub
+ AudioSystem.audioSystemErrorToString(deviceAffinitiesStatus) + AudioSystem.audioSystemErrorToString(deviceAffinitiesStatus)
+ " when connecting device affinities for policy " + " when connecting device affinities for policy "
+ policy.toLogFriendlyString()); + policy.toLogFriendlyString());
policy.release(); invalidProxies.add(policy);
} }
} }
} }
invalidProxies.forEach((policy) -> policy.release());
} }
// Restore capture policies // Restore capture policies