Merge "profcollect: Trace on camera open events" into main (96b2e4b8) · Commits · e / os / android_frameworks_base

services/profcollect/src/com/android/server/profcollect/ProfcollectForwardingService.java

+35 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@ import android.content.ComponentName;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.hardware.camera2.CameraManager;
		import android.os.Handler;
		import android.os.IBinder.DeathRecipient;
		import android.os.Looper;
		@@ -258,6 +259,7 @@ public final class ProfcollectForwardingService extends SystemService {
		BackgroundThread.get().getThreadHandler().post(
		() -> {
		registerAppLaunchObserver();
		registerCameraOpenObserver();
		registerDex2oatObserver();
		registerOTAObserver();
		});
		@@ -371,4 +373,37 @@ public final class ProfcollectForwardingService extends SystemService {
		pfs.getContext().sendBroadcast(intent);
		});
		}

		private void registerCameraOpenObserver() {
		CameraManager cm = getContext().getSystemService(CameraManager.class);
		cm.registerAvailabilityCallback(new CameraManager.AvailabilityCallback() {
		@Override
		public void onCameraOpened(String cameraId, String packageId) {
		Log.d(LOG_TAG, "Received camera open event from: " + packageId);
		// Skip face auth and Android System Intelligence, since they trigger way too
		// often.
		if (packageId.startsWith("client.pid")
		\|\| packageId.equals("com.google.android.as")) {
		return;
		}
		// Sample for a fraction of camera events.
		final int traceFrequency =
		DeviceConfig.getInt(DeviceConfig.NAMESPACE_PROFCOLLECT_NATIVE_BOOT,
		"camera_trace_freq", 10);
		int randomNum = ThreadLocalRandom.current().nextInt(100);
		if (randomNum >= traceFrequency) {
		return;
		}
		BackgroundThread.get().getThreadHandler().post(() -> {
		try {
		// Wait for a short time before starting tracing.
		Thread.sleep(1000);
		mIProfcollect.trace_once("camera");
		} catch (RemoteException \| InterruptedException e) {
		Log.e(LOG_TAG, "Failed to initiate trace: " + e.getMessage());
		}
		});
		}
		}, null);
		}
		}