content: /*
   * Copyright (C) 2019 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.quickstep.util;
  
  import android.os.Binder;
  import android.os.IBinder;
  import android.os.Looper;
  import android.util.Log;
  
  import com.android.launcher3.config.FeatureFlags;
  
  /**
   * Utility class to test and check binder calls during development.
   */
  public class BinderTracker {
  
      private static final String TAG = "BinderTracker";
  
      public static void start() {
          if (!FeatureFlags.IS_DOGFOOD_BUILD) {
              Log.wtf(TAG, "Accessing tracker in released code.", new Exception());
              return;
          }
  
          Binder.setProxyTransactListener(new Tracker());
      }
  
      public static void stop() {
          if (!FeatureFlags.IS_DOGFOOD_BUILD) {
              Log.wtf(TAG, "Accessing tracker in released code.", new Exception());
              return;
          }
          Binder.setProxyTransactListener(null);
      }
  
      private static class Tracker implements Binder.ProxyTransactListener {
  
          @Override
          public Object onTransactStarted(IBinder iBinder, int code) {
              if (Looper.myLooper() == Looper.getMainLooper()) {
                  Log.e(TAG, "Binder call on ui thread", new Exception());
              }
              return null;
          }
  
          @Override
          public void onTransactEnded(Object session) { }
      }
  }
  