Merge "Adds perfetto tracing to ScrollCaptureConnection" into tm-dev (f9ccda5c) · Commits · e / os / android_frameworks_base

core/java/android/view/ScrollCaptureConnection.java

+24 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		package android.view;

		import static android.os.Trace.TRACE_TAG_GRAPHICS;

		import static java.util.Objects.requireNonNull;

		import android.annotation.BinderThread;
		@@ -27,6 +29,7 @@ import android.os.CancellationSignal;
		import android.os.IBinder;
		import android.os.ICancellationSignal;
		import android.os.RemoteException;
		import android.os.Trace;
		import android.util.CloseGuard;
		import android.util.Log;

		@@ -48,6 +51,12 @@ public class ScrollCaptureConnection extends IScrollCaptureConnection.Stub imple
		IBinder.DeathRecipient {

		private static final String TAG = "ScrollCaptureConnection";
		private static final String TRACE_TRACK = "Scroll Capture";
		private static final String START_CAPTURE = "startCapture";
		private static final String REQUEST_IMAGE = "requestImage";

		private static final String END_CAPTURE = "endCapture";
		private static final String SESSION = "Session";

		private final Object mLock = new Object();
		private final Rect mScrollBounds;
		@@ -62,6 +71,7 @@ public class ScrollCaptureConnection extends IScrollCaptureConnection.Stub imple

		private volatile boolean mActive;
		private volatile boolean mConnected;
		private int mTraceId;

		/**
		* Constructs a ScrollCaptureConnection.
		@@ -86,6 +96,9 @@ public class ScrollCaptureConnection extends IScrollCaptureConnection.Stub imple
		@Override
		public ICancellationSignal startCapture(@NonNull Surface surface,
		@NonNull IScrollCaptureCallbacks remote) throws RemoteException {
		mTraceId = System.identityHashCode(surface);
		Trace.asyncTraceForTrackBegin(TRACE_TAG_GRAPHICS, TRACE_TRACK, SESSION, mTraceId);
		Trace.asyncTraceForTrackBegin(TRACE_TAG_GRAPHICS, TRACE_TRACK, START_CAPTURE, mTraceId);
		mCloseGuard.open("ScrollCaptureConnection.close");

		if (!surface.isValid()) {
		@@ -116,11 +129,13 @@ public class ScrollCaptureConnection extends IScrollCaptureConnection.Stub imple
		close();
		}
		mCancellation = null;
		Trace.asyncTraceForTrackEnd(TRACE_TAG_GRAPHICS, TRACE_TRACK, START_CAPTURE, mTraceId);
		}

		@BinderThread
		@Override
		public ICancellationSignal requestImage(Rect requestRect) throws RemoteException {
		Trace.asyncTraceForTrackBegin(TRACE_TAG_GRAPHICS, TRACE_TRACK, REQUEST_IMAGE, mTraceId);
		checkActive();
		cancelPendingAction();
		ICancellationSignal cancellation = CancellationSignal.createTransport();
		@@ -144,11 +159,13 @@ public class ScrollCaptureConnection extends IScrollCaptureConnection.Stub imple
		} finally {
		mCancellation = null;
		}
		Trace.asyncTraceForTrackEnd(TRACE_TAG_GRAPHICS, TRACE_TRACK, REQUEST_IMAGE, mTraceId);
		}

		@BinderThread
		@Override
		public ICancellationSignal endCapture() throws RemoteException {
		Trace.asyncTraceForTrackBegin(TRACE_TAG_GRAPHICS, TRACE_TRACK, END_CAPTURE, mTraceId);
		checkActive();
		cancelPendingAction();
		ICancellationSignal cancellation = CancellationSignal.createTransport();
		@@ -174,17 +191,22 @@ public class ScrollCaptureConnection extends IScrollCaptureConnection.Stub imple
		mCancellation = null;
		close();
		}
		Trace.asyncTraceForTrackEnd(TRACE_TAG_GRAPHICS, TRACE_TRACK, END_CAPTURE, mTraceId);
		Trace.asyncTraceForTrackEnd(TRACE_TAG_GRAPHICS, TRACE_TRACK, SESSION, mTraceId);
		}

		@Override
		public void binderDied() {
		Trace.instantForTrack(TRACE_TAG_GRAPHICS, TRACE_TRACK, "binderDied");
		Log.e(TAG, "Controlling process just died.");
		close();

		}

		@BinderThread
		@Override
		public void close() {
		Trace.instantForTrack(TRACE_TAG_GRAPHICS, TRACE_TRACK, "close");
		if (mActive) {
		Log.w(TAG, "close(): capture session still active! Ending now.");
		cancelPendingAction();
		@@ -201,11 +223,13 @@ public class ScrollCaptureConnection extends IScrollCaptureConnection.Stub imple
		mRemote = null;
		mLocal = null;
		mCloseGuard.close();
		Trace.endSection();
		Reference.reachabilityFence(this);
		}

		private void cancelPendingAction() {
		if (mCancellation != null) {
		Trace.instantForTrack(TRACE_TAG_GRAPHICS, TRACE_TRACK, "CancellationSignal.cancel");
		Log.w(TAG, "cancelling pending operation.");
		mCancellation.cancel();
		mCancellation = null;