commit d2e67e1ef59921101fd7b047e2acf84e5d16d66e
author Glenn Kasten <gkasten@google.com> Mon Apr 11 08:26:37 2016 -0700
committer Glenn Kasten <gkasten@google.com> Mon Apr 18 11:14:10 2016 -0700
tree 72883cf95314261924d58d5f36e409eb3863b3eb
parent 5cc32c5ee9caa11a3c9cd205c42463ead28ec87e

Reduce rollovers of unique ID generator

Bug: 28119934
Change-Id: I6c57d5555f6c5ddc4d4eee1e6f27fc4aaeb31c83

services/audioflinger/AudioFlinger.h

diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 498c33e..5f4b0f1 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -679,9 +679,8 @@
                 // protected by mClientLock
                 DefaultKeyedVector< pid_t, sp<NotificationClient> >    mNotificationClients;
 
-                volatile int32_t                    mNextUniqueId;  // updated by android_atomic_inc
-                // nextUniqueId() returns uint32_t, but this is declared int32_t
-                // because the atomic operations require an int32_t
+                // updated by atomic_fetch_add_explicit
+                volatile atomic_uint_fast32_t       mNextUniqueIds[AUDIO_UNIQUE_ID_USE_MAX];
 
                 audio_mode_t                        mMode;
                 bool                                mBtNrecIsOff;