mirror of
https://github.com/openjdk/jdk.git
synced 2026-02-02 22:48:35 +00:00
81 lines
2.6 KiB
Java
81 lines
2.6 KiB
Java
/*
|
|
* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation. Oracle designates this
|
|
* particular file as subject to the "Classpath" exception as provided
|
|
* by Oracle in the LICENSE file that accompanied this code.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
package sun.management;
|
|
|
|
import java.lang.management.OperatingSystemMXBean;
|
|
import java.lang.management.ManagementFactory;
|
|
import javax.management.ObjectName;
|
|
import jdk.internal.misc.Unsafe;
|
|
|
|
/**
|
|
* Implementation class for the operating system.
|
|
* Standard and committed hotspot-specific metrics if any.
|
|
*
|
|
* ManagementFactory.getOperatingSystemMXBean() returns an instance
|
|
* of this class.
|
|
*/
|
|
public class BaseOperatingSystemImpl implements OperatingSystemMXBean {
|
|
|
|
private final VMManagement jvm;
|
|
|
|
/**
|
|
* Constructor of BaseOperatingSystemImpl class.
|
|
*/
|
|
protected BaseOperatingSystemImpl(VMManagement vm) {
|
|
this.jvm = vm;
|
|
}
|
|
|
|
public String getName() {
|
|
return jvm.getOsName();
|
|
}
|
|
|
|
public String getArch() {
|
|
return jvm.getOsArch();
|
|
}
|
|
|
|
public String getVersion() {
|
|
return jvm.getOsVersion();
|
|
}
|
|
|
|
public int getAvailableProcessors() {
|
|
return jvm.getAvailableProcessors();
|
|
}
|
|
|
|
private static final Unsafe unsafe = Unsafe.getUnsafe();
|
|
private double[] loadavg = new double[1];
|
|
public double getSystemLoadAverage() {
|
|
if (unsafe.getLoadAverage(loadavg, 1) == 1) {
|
|
return loadavg[0];
|
|
} else {
|
|
return -1.0;
|
|
}
|
|
}
|
|
public ObjectName getObjectName() {
|
|
return Util.newObjectName(ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME);
|
|
}
|
|
|
|
}
|