SurfaceFlinger: add debug information when vsync is not generated
Print debug information about VsyncReactor internal state when
we expect a vsync event but it is not generated.
Bug: 151892277
Test: adb shell dumpsys SurfaceFlinger --dispsync
Test: simulate a missed vsync and observed logcat
Change-Id: Ia98cb884321d0c25610c4d721f422d9cd05c8c5e
diff --git a/services/surfaceflinger/Scheduler/VSyncReactor.h b/services/surfaceflinger/Scheduler/VSyncReactor.h
index 7d8a8e3..5ee29f8 100644
--- a/services/surfaceflinger/Scheduler/VSyncReactor.h
+++ b/services/surfaceflinger/Scheduler/VSyncReactor.h
@@ -75,7 +75,7 @@
std::unique_ptr<VSyncDispatch> const mDispatch;
size_t const mPendingLimit;
- std::mutex mMutex;
+ mutable std::mutex mMutex;
bool mInternalIgnoreFences GUARDED_BY(mMutex) = false;
bool mExternalIgnoreFences GUARDED_BY(mMutex) = false;
std::vector<std::shared_ptr<FenceTime>> mUnfiredFences GUARDED_BY(mMutex);