1/*
2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.management.internal;
27
28import sun.management.BaseOperatingSystemImpl;
29import sun.management.VMManagement;
30/**
31 * Implementation class for the operating system.
32 * Standard and committed hotspot-specific metrics if any.
33 *
34 * ManagementFactory.getOperatingSystemMXBean() returns an instance
35 * of this class.
36 */
37class OperatingSystemImpl extends BaseOperatingSystemImpl
38    implements com.sun.management.UnixOperatingSystemMXBean {
39
40    OperatingSystemImpl(VMManagement vm) {
41        super(vm);
42    }
43
44    public long getCommittedVirtualMemorySize() {
45        return getCommittedVirtualMemorySize0();
46    }
47
48    public long getTotalSwapSpaceSize() {
49        return getTotalSwapSpaceSize0();
50    }
51
52    public long getFreeSwapSpaceSize() {
53        return getFreeSwapSpaceSize0();
54    }
55
56    public long getProcessCpuTime() {
57        return getProcessCpuTime0();
58    }
59
60    public long getFreePhysicalMemorySize() {
61        return getFreePhysicalMemorySize0();
62    }
63
64    public long getTotalPhysicalMemorySize() {
65        return getTotalPhysicalMemorySize0();
66    }
67
68    public long getOpenFileDescriptorCount() {
69        return getOpenFileDescriptorCount0();
70    }
71
72    public long getMaxFileDescriptorCount() {
73        return getMaxFileDescriptorCount0();
74    }
75
76    public double getSystemCpuLoad() {
77        return getSystemCpuLoad0();
78    }
79
80    public double getProcessCpuLoad() {
81        return getProcessCpuLoad0();
82    }
83
84    /* native methods */
85    private native long getCommittedVirtualMemorySize0();
86    private native long getFreePhysicalMemorySize0();
87    private native long getFreeSwapSpaceSize0();
88    private native long getMaxFileDescriptorCount0();
89    private native long getOpenFileDescriptorCount0();
90    private native long getProcessCpuTime0();
91    private native double getProcessCpuLoad0();
92    private native double getSystemCpuLoad0();
93    private native long getTotalPhysicalMemorySize0();
94    private native long getTotalSwapSpaceSize0();
95
96    static {
97        initialize0();
98    }
99
100    private static native void initialize0();
101}
102