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Kieker: Application Performance Monitoring and Dynamic Software Analysis

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/***************************************************************************
 * Copyright 2022 Kieker Project (http://kieker-monitoring.net)
 *
 * 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 kieker.monitoring.queue.takestrategy;

import java.util.Queue;

/**
 *
 * @author Christian Wulf
 *
 * @since 1.13
 */
public class YieldTakeStrategy implements TakeStrategy {

	public YieldTakeStrategy() {
		super();
	}

	@Override
	public  E waitPoll(final Queue q) throws InterruptedException {
		E e = q.poll();
		while (e == null) {
			Thread.yield();
			e = q.poll();
		}
		return e;
	}

	@Override
	public void signal() {
		// Nothing to do
	}

}