com.conversantmedia.util.concurrent.AbstractCondition Maven / Gradle / Ivy
package com.conversantmedia.util.concurrent;
/*
* #%L
* Conversant Disruptor
* ~~
* Conversantmedia.com © 2016, Conversant, Inc. Conversant® is a trademark of Conversant, Inc.
* ~~
* 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.
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*/
import java.util.concurrent.locks.ReentrantLock;
/**
* Created by jcairns on 12/11/14.
*/
// use java sync to signal
abstract class AbstractCondition implements Condition {
private final ReentrantLock queueLock = new ReentrantLock();
private final java.util.concurrent.locks.Condition condition = queueLock.newCondition();
// wake me when the condition is satisfied, or timeout
@Override
public void awaitNanos(final long timeout) throws InterruptedException {
long remaining = timeout;
queueLock.lock();
try {
while(test() && remaining > 0) {
remaining = condition.awaitNanos(remaining);
}
}
finally {
queueLock.unlock();
}
}
// wake if signal is called, or wait indefinitely
@Override
public void await() throws InterruptedException {
queueLock.lock();
try {
while(test()) {
condition.await();
}
}
finally {
queueLock.unlock();
}
}
// tell threads waiting on condition to wake up
@Override
public void signal() {
queueLock.lock();
try {
condition.signalAll();
}
finally {
queueLock.unlock();
}
}
}