1 /*
2  * Copyright 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of 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,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package androidx.work.worker;
18 
19 import android.content.Context;
20 
21 import androidx.work.Worker;
22 import androidx.work.WorkerParameters;
23 
24 import org.jspecify.annotations.NonNull;
25 
26 import java.util.concurrent.CountDownLatch;
27 
28 public class LatchWorker extends Worker {
29 
30     public CountDownLatch mLatch = new CountDownLatch(1);
31     public CountDownLatch mEntrySignal = new CountDownLatch(1);
32     public Result returnResult = Result.success();
33 
LatchWorker(@onNull Context context, @NonNull WorkerParameters workerParams)34     public LatchWorker(@NonNull Context context, @NonNull WorkerParameters workerParams) {
35         super(context, workerParams);
36     }
37 
38     @Override
doWork()39     public @NonNull Result doWork() {
40         try {
41             mEntrySignal.countDown();
42             mLatch.await();
43         } catch (InterruptedException e) {
44             return Result.failure();
45         }
46         return returnResult;
47     }
48 }
49