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/*
* 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.
*/
@ThreadSafe
public final class SingleProdThreadExecutor implements PausableExecutor {
private int mMilestonesReached;
private int mMilestonesAcked;
@Override
public synchronized void milestone() {
++mMilestonesReached;
notify();
while (mMilestonesReached > mMilestonesAcked) {
try {
wait();
} catch (InterruptedException e) {}
}
}
@Override
public synchronized void ackMilestoneForTesting() {
++mMilestonesAcked;
notify();
}
@Override
public synchronized void awaitMilestoneForTesting() throws InterruptedException {
while (mMilestonesReached <= mMilestonesAcked) {
wait();
}
}
@Override
public synchronized void execute(Runnable command) {
Executors.newSingleThreadExecutor().execute(command);
}
}
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