src/main/java/org/apache/cassandra/distributed/shared/Uninterruptibles.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.cassandra.distributed.shared;

import java.util.concurrent.TimeUnit;

public class Uninterruptibles
{
    public static void sleepUninterruptibly(long sleepFor, TimeUnit unit) {
        // copied from guava since dtest can't depend on guava
        boolean interrupted = false;

        try {
            long remainingNanos = unit.toNanos(sleepFor);
            long end = System.nanoTime() + remainingNanos;

            while(true) {
                try {
                    TimeUnit.NANOSECONDS.sleep(remainingNanos);
                    return;
                } catch (InterruptedException iex) {
                    interrupted = true;
                    remainingNanos = end - System.nanoTime();
                }
            }
        } finally {
            if (interrupted) {
                Thread.currentThread().interrupt();
            }
        }
    }
}