org.apache.pulsar.common.util.DirectMemoryUtils 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.pulsar.common.util;
// CHECKSTYLE.OFF: IllegalImport
import org.apache.pulsar.shade.io.netty.util.internal.PlatformDependent;
// CHECKSTYLE.ON: IllegalImport
public class DirectMemoryUtils {
/**
* PlatformDependent.maxDirectMemory can be inaccurate if java property `org.apache.pulsar.shade.io.netty.maxDirectMemory` are setted.
* Cache the result in this field.
*/
private static final long JVM_MAX_DIRECT_MEMORY = PlatformDependent.estimateMaxDirectMemory();
public static long jvmMaxDirectMemory() {
return JVM_MAX_DIRECT_MEMORY;
}
}