1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.io; 18 19 import java.time.Duration; 20 import java.time.Instant; 21 22 /** 23 * Helps work with threads. 24 * 25 * @since 2.12.0 26 */ 27 public final class ThreadUtils { 28 getNanosOfMilli(final Duration duration)29 private static int getNanosOfMilli(final Duration duration) { 30 return duration.getNano() % 1_000_000; 31 } 32 33 /** 34 * Sleeps for a guaranteed minimum duration unless interrupted. 35 * <p> 36 * This method exists because Thread.sleep(100) can sleep for 0, 70, 100 or 200ms or anything else it deems appropriate. Read 37 * {@link Thread#sleep(long, int)}} for further interesting details. 38 * </p> 39 * 40 * @param duration the sleep duration. 41 * @throws InterruptedException if interrupted 42 * @see Thread#sleep(long, int) 43 */ sleep(final Duration duration)44 public static void sleep(final Duration duration) throws InterruptedException { 45 // Using this method avoids depending on the vagaries of the precision and accuracy of system timers and schedulers. 46 final Instant finishInstant = Instant.now().plus(duration); 47 Duration remainingDuration = duration; 48 do { 49 Thread.sleep(remainingDuration.toMillis(), getNanosOfMilli(remainingDuration)); 50 remainingDuration = Duration.between(Instant.now(), finishInstant); 51 } while (!remainingDuration.isNegative()); 52 } 53 54 } 55