org.apache.hudi.org.apache.hadoop.hbase.util.AtomicUtils Maven / Gradle / Ivy
/**
* 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.hadoop.hbase.util;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Utilities related to atomic operations.
*/
@InterfaceAudience.Private
public final class AtomicUtils {
private AtomicUtils() {
}
/**
* Updates a AtomicLong which is supposed to maintain the minimum values. This method is not
* synchronized but is thread-safe.
*/
public static void updateMin(AtomicLong min, long value) {
while (true) {
long cur = min.get();
if (value >= cur) {
break;
}
if (min.compareAndSet(cur, value)) {
break;
}
}
}
/**
* Updates a AtomicLong which is supposed to maintain the maximum values. This method is not
* synchronized but is thread-safe.
*/
public static void updateMax(AtomicLong max, long value) {
while (true) {
long cur = max.get();
if (value <= cur) {
break;
}
if (max.compareAndSet(cur, value)) {
break;
}
}
}
}