| /* |
| * Copyright (c) 2003, 2011, 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 com.sun.management.OperatingSystemMXBean; |
| |
| /** |
| * Implementation class for the operating system. |
| * Standard and committed hotspot-specific metrics if any. |
| * |
| * ManagementFactory.getOperatingSystemMXBean() returns an instance |
| * of this class. |
| */ |
| class OperatingSystemImpl extends BaseOperatingSystemImpl |
| implements OperatingSystemMXBean { |
| |
| // psapiLock is a lock to make sure only one thread loading |
| // PSAPI DLL. |
| private static Object psapiLock = new Object(); |
| |
| OperatingSystemImpl(VMManagement vm) { |
| super(vm); |
| } |
| |
| public long getCommittedVirtualMemorySize() { |
| synchronized (psapiLock) { |
| return getCommittedVirtualMemorySize0(); |
| } |
| } |
| |
| public long getTotalSwapSpaceSize() { |
| return getTotalSwapSpaceSize0(); |
| } |
| |
| public long getFreeSwapSpaceSize() { |
| return getFreeSwapSpaceSize0(); |
| } |
| |
| public long getProcessCpuTime() { |
| return getProcessCpuTime0(); |
| } |
| |
| public long getFreePhysicalMemorySize() { |
| return getFreePhysicalMemorySize0(); |
| } |
| |
| public long getTotalPhysicalMemorySize() { |
| return getTotalPhysicalMemorySize0(); |
| } |
| |
| public double getSystemCpuLoad() { |
| return getSystemCpuLoad0(); |
| } |
| |
| public double getProcessCpuLoad() { |
| return getProcessCpuLoad0(); |
| } |
| |
| /* native methods */ |
| private native long getCommittedVirtualMemorySize0(); |
| private native long getFreePhysicalMemorySize0(); |
| private native long getFreeSwapSpaceSize0(); |
| private native double getProcessCpuLoad0(); |
| private native long getProcessCpuTime0(); |
| private native double getSystemCpuLoad0(); |
| private native long getTotalPhysicalMemorySize0(); |
| private native long getTotalSwapSpaceSize0(); |
| |
| static { |
| initialize0(); |
| } |
| |
| private static native void initialize0(); |
| } |