Showing the changes to java/pkg/sun/management/HotspotThread.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2003, 2004, 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 | + | |
| 26 | +package sun.management; | |
| 27 | + | |
| 28 | +import java.util.Map; | |
| 29 | +import java.util.HashMap; | |
| 30 | +import sun.management.counter.Counter; | |
| 31 | + | |
| 32 | + | |
| 33 | +/** | |
| 34 | + * Implementation class of HotspotThreadMBean interface. | |
| 35 | + * | |
| 36 | + * Internal, uncommitted management interface for Hotspot threading | |
| 37 | + * system. | |
| 38 | + */ | |
| 39 | +class HotspotThread | |
| 40 | + implements HotspotThreadMBean { | |
| 41 | + | |
| 42 | + private VMManagement jvm; | |
| 43 | + | |
| 44 | + /** | |
| 45 | + * Constructor of HotspotThread class. | |
| 46 | + */ | |
| 47 | + HotspotThread(VMManagement vm) { | |
| 48 | + jvm = vm; | |
| 49 | + } | |
| 50 | + | |
| 51 | + public native int getInternalThreadCount(); | |
| 52 | + | |
| 53 | + public Map<String, Long> getInternalThreadCpuTimes() { | |
| 54 | + int count = getInternalThreadCount(); | |
| 55 | + if (count == 0) { | |
| 56 | + return java.util.Collections.emptyMap(); | |
| 57 | + } | |
| 58 | + String[] names = new String[count]; | |
| 59 | + long[] times = new long[count]; | |
| 60 | + int numThreads = getInternalThreadTimes0(names, times); | |
| 61 | + Map<String, Long> result = new HashMap<String, Long>(numThreads); | |
| 62 | + for (int i = 0; i < numThreads; i++) { | |
| 63 | + result.put(names[i], new Long(times[i])); | |
| 64 | + } | |
| 65 | + return result; | |
| 66 | + } | |
| 67 | + public native int getInternalThreadTimes0(String[] names, long[] times); | |
| 68 | + | |
| 69 | + // Performance counter support | |
| 70 | + private static final String JAVA_THREADS = "java.threads."; | |
| 71 | + private static final String COM_SUN_THREADS = "com.sun.threads."; | |
| 72 | + private static final String SUN_THREADS = "sun.threads."; | |
| 73 | + private static final String THREADS_COUNTER_NAME_PATTERN = | |
| 74 | + JAVA_THREADS + "|" + COM_SUN_THREADS + "|" + SUN_THREADS; | |
| 75 | + | |
| 76 | + public java.util.List<Counter> getInternalThreadingCounters() { | |
| 77 | + return jvm.getInternalCounters(THREADS_COUNTER_NAME_PATTERN); | |
| 78 | + } | |
| 79 | +} | |