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Commit 3f793d7d authored by Nicholas Ambur's avatar Nicholas Ambur
Browse files

add LatencyTracker tracing cancel / timeout events 

Bug: 265850090
Test: manual invoke hotword trigger collecting trace and verify in
Perfetto UI that trace has cancel and timeout events

Change-Id: Ie5acefe043575b198ce1fbd1526cc82116649cb3
parent 65a2a1e7

core/java/com/android/internal/util/LatencyTracker.java

+8 −4
Original line number Diff line number Diff line
@@ -611,23 +611,27 @@ public class LatencyTracker { 


        void begin(@NonNull Runnable timeoutAction) {

            mStartRtc = SystemClock.elapsedRealtime();

            Trace.asyncTraceBegin(TRACE_TAG_APP, traceName(), 0);

            Trace.asyncTraceForTrackBegin(TRACE_TAG_APP, traceName(), traceName(), 0);



            // start counting timeout.

            mTimeoutRunnable = timeoutAction;

            mTimeoutRunnable = () -> {

                Trace.instantForTrack(TRACE_TAG_APP, traceName(), "timeout");

                timeoutAction.run();

            };

            BackgroundThread.getHandler()

                    .postDelayed(mTimeoutRunnable, TimeUnit.SECONDS.toMillis(15));

        }



        void end() {

            mEndRtc = SystemClock.elapsedRealtime();

            Trace.asyncTraceEnd(TRACE_TAG_APP, traceName(), 0);

            Trace.asyncTraceForTrackEnd(TRACE_TAG_APP, traceName(), 0);

            BackgroundThread.getHandler().removeCallbacks(mTimeoutRunnable);

            mTimeoutRunnable = null;

        }



        void cancel() {

            Trace.asyncTraceEnd(TRACE_TAG_APP, traceName(), 0);

            Trace.instantForTrack(TRACE_TAG_APP, traceName(), "cancel");

            Trace.asyncTraceForTrackEnd(TRACE_TAG_APP, traceName(), 0);

            BackgroundThread.getHandler().removeCallbacks(mTimeoutRunnable);

            mTimeoutRunnable = null;

        }