SurfaceFlinger: Reset VsyncReactor's timer thread
If any of the syscalls the timer uses returns an error, reset the timer.
This is a workaround for an issue seen where VsyncReactor is not calling
new callbacks. In addition this change adds more log prints to help
identifying the underlying issue.
Bug: 151892277
Test: simulate an error in syscall and observe timer resets
Change-Id: I6fd62f9d73f75f32a87d1483cea14f3f1b358507
diff --git a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h
index 390e0c4..26a8ec0 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h
+++ b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.h
@@ -152,6 +152,10 @@
std::array<char, maxlen> str_buffer;
void note(std::string_view name, nsecs_t in, nsecs_t vs);
} mTraceBuffer GUARDED_BY(mMutex);
+
+ // For debugging purposes
+ nsecs_t mLastTimerCallback GUARDED_BY(mMutex) = kInvalidTime;
+ nsecs_t mLastTimerSchedule GUARDED_BY(mMutex) = kInvalidTime;
};
} // namespace android::scheduler