NBLog periodic merging thread
Bug: 35468674
Test: no change in functionality, everything works as before
Change-Id: Id2cea243bc15767ca6803c9505bf23a18411500e
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 44fd512..f9c4ffd 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -472,6 +472,38 @@
const sp<IAudioFlingerClient> mAudioFlingerClient;
};
+ // --- MediaLogNotifier ---
+ // Thread in charge of notifying MediaLogService to start merging.
+ // Receives requests from AudioFlinger's binder activity. It is used to reduce the amount of
+ // binder calls to MediaLogService in case of bursts of AudioFlinger binder calls.
+ class MediaLogNotifier : public Thread {
+ public:
+ MediaLogNotifier();
+
+ // Requests a MediaLogService notification. It's ignored if there has recently been another
+ void requestMerge();
+ private:
+ // Every iteration blocks waiting for a request, then interacts with MediaLogService to
+ // start merging.
+ // As every MediaLogService binder call is expensive, once it gets a request it ignores the
+ // following ones for a period of time.
+ virtual bool threadLoop() override;
+
+ bool mPendingRequests;
+
+ // Mutex and condition variable around mPendingRequests' value
+ Mutex mMutex;
+ Condition mCond;
+
+ // Duration of the sleep period after a processed request
+ static const int kPostTriggerSleepPeriod = 1000000;
+ };
+
+ const sp<MediaLogNotifier> mMediaLogNotifier;
+
+ // This is a helper that is called during incoming binder calls.
+ void requestLogMerge();
+
class TrackHandle;
class RecordHandle;
class RecordThread;