1/*
2 * Copyright (C) 2017 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
17package com.android.systemui.util.wakelock;
18
19import com.android.internal.util.Preconditions;
20
21public class WakeLockFake implements WakeLock {
22
23    private int mAcquired = 0;
24
25    @Override
26    public void acquire() {
27        mAcquired++;
28    }
29
30    @Override
31    public void release() {
32        Preconditions.checkState(mAcquired > 0);
33        mAcquired--;
34    }
35
36    @Override
37    public Runnable wrap(Runnable runnable) {
38        acquire();
39        return () -> {
40            try {
41                runnable.run();
42            } finally {
43                release();
44            }
45        };
46    }
47
48    public boolean isHeld() {
49        return mAcquired > 0;
50    }
51}
52