| /* |
| * Copyright (C) 2016 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.incallui.async; |
| |
| import java.util.concurrent.Executors; |
| |
| import javax.annotation.concurrent.ThreadSafe; |
| |
| /** |
| * {@link PausableExecutor} for use in tests. It is intended to be used between one test thread |
| * and one prod thread. See {@link com.android.incallui.ringtone.InCallTonePlayerTest} for example |
| * usage. |
| */ |
| @ThreadSafe |
| public final class SingleProdThreadExecutor implements PausableExecutor { |
| |
| private int mMilestonesReached; |
| private int mMilestonesAcked; |
| private boolean mHasAckedAllMilestones; |
| |
| @Override |
| public synchronized void milestone() { |
| ++mMilestonesReached; |
| notify(); |
| while (!mHasAckedAllMilestones && mMilestonesReached > mMilestonesAcked) { |
| try { |
| wait(); |
| } catch (InterruptedException e) {} |
| } |
| } |
| |
| @Override |
| public synchronized void ackMilestoneForTesting() { |
| ++mMilestonesAcked; |
| notify(); |
| } |
| |
| @Override |
| public synchronized void ackAllMilestonesForTesting() { |
| mHasAckedAllMilestones = true; |
| notify(); |
| } |
| |
| @Override |
| public synchronized void awaitMilestoneForTesting() throws InterruptedException { |
| while (!mHasAckedAllMilestones && mMilestonesReached <= mMilestonesAcked) { |
| wait(); |
| } |
| } |
| |
| @Override |
| public synchronized void execute(Runnable command) { |
| Executors.newSingleThreadExecutor().execute(command); |
| } |
| } |