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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
      5  * use this file except in compliance with the License. You may obtain a copy of
      6  * the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
     13  * License for the specific language governing permissions and limitations under
     14  * the License.
     15  */
     16 
     17 package com.android.frameworks.perftests.am.util;
     18 
     19 import android.content.Intent;
     20 import android.os.RemoteException;
     21 import android.os.ResultReceiver;
     22 import android.support.test.InstrumentationRegistry;
     23 import android.support.test.uiautomator.UiDevice;
     24 import android.util.Log;
     25 
     26 import java.io.IOException;
     27 
     28 public class Utils {
     29     private static final String TAG = "AmPerfTestsUtils";
     30 
     31     public static void drainBroadcastQueue() {
     32         runShellCommand("am wait-for-broadcast-idle");
     33     }
     34 
     35     /**
     36      * Runs the command and returns the stdout.
     37      */
     38     public static String runShellCommand(String cmd) {
     39         try {
     40             return UiDevice.getInstance(
     41                     InstrumentationRegistry.getInstrumentation()).executeShellCommand(cmd);
     42         } catch (IOException e) {
     43             throw new RuntimeException(e);
     44         }
     45     }
     46 
     47     /**
     48      * Sends the current time in a message with the given type so TimeReceiver can receive it.
     49      */
     50     public static void sendTime(Intent intent, String type) {
     51         final long time = System.nanoTime();
     52         final ITimeReceiverCallback sendTimeBinder = ITimeReceiverCallback.Stub.asInterface(
     53                 intent.getExtras().getBinder(Constants.EXTRA_RECEIVER_CALLBACK));
     54         try {
     55             sendTimeBinder.sendTime(type, time);
     56         } catch (RemoteException e) {
     57             Log.e(TAG, e.getMessage());
     58         }
     59     }
     60 
     61     /**
     62      * Notify the listener that the main Looper queue is idle.
     63      */
     64     public static void sendLooperIdle(Intent intent) {
     65         ResultReceiver resultReceiver = intent.getParcelableExtra(Intent.EXTRA_RESULT_RECEIVER);
     66         resultReceiver.send(0, null);
     67     }
     68 }
     69