author | mchung |
Thu, 10 Apr 2008 10:47:13 -0700 | |
changeset 401 | ef01e0dccd63 |
parent 2 | 90ce3da70b43 |
child 715 | f16baef3a20e |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package sun.management; |
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import sun.misc.Perf; |
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import sun.management.counter.*; |
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import sun.management.counter.perf.*; |
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import java.nio.ByteBuffer; |
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import java.io.IOException; |
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import java.net.InetAddress; |
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import java.net.UnknownHostException; |
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import java.util.List; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import sun.security.action.GetPropertyAction; |
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/** |
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* Implementation of VMManagement interface that accesses the management |
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* attributes and operations locally within the same Java virtual |
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* machine. |
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*/ |
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class VMManagementImpl implements VMManagement { |
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private static String version; |
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private static boolean compTimeMonitoringSupport; |
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private static boolean threadContentionMonitoringSupport; |
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private static boolean currentThreadCpuTimeSupport; |
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private static boolean otherThreadCpuTimeSupport; |
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private static boolean bootClassPathSupport; |
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private static boolean objectMonitorUsageSupport; |
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private static boolean synchronizerUsageSupport; |
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static { |
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version = getVersion0(); |
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if (version == null) { |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
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throw new AssertionError("Invalid Management Version"); |
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} |
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initOptionalSupportFields(); |
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} |
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private native static String getVersion0(); |
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private native static void initOptionalSupportFields(); |
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// Optional supports |
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public boolean isCompilationTimeMonitoringSupported() { |
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return compTimeMonitoringSupport; |
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} |
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public boolean isThreadContentionMonitoringSupported() { |
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return threadContentionMonitoringSupport; |
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} |
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public boolean isCurrentThreadCpuTimeSupported() { |
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return currentThreadCpuTimeSupport; |
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} |
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public boolean isOtherThreadCpuTimeSupported() { |
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return otherThreadCpuTimeSupport; |
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} |
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public boolean isBootClassPathSupported() { |
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return bootClassPathSupport; |
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} |
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public boolean isObjectMonitorUsageSupported() { |
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return objectMonitorUsageSupport; |
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} |
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public boolean isSynchronizerUsageSupported() { |
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return synchronizerUsageSupport; |
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} |
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public native boolean isThreadContentionMonitoringEnabled(); |
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public native boolean isThreadCpuTimeEnabled(); |
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// Class Loading Subsystem |
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public int getLoadedClassCount() { |
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long count = getTotalClassCount() - getUnloadedClassCount(); |
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return (int) count; |
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} |
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public native long getTotalClassCount(); |
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public native long getUnloadedClassCount(); |
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public native boolean getVerboseClass(); |
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// Memory Subsystem |
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public native boolean getVerboseGC(); |
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// Runtime Subsystem |
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public String getManagementVersion() { |
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return version; |
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} |
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public String getVmId() { |
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int pid = getProcessId(); |
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String hostname = "localhost"; |
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try { |
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hostname = InetAddress.getLocalHost().getHostName(); |
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} catch (UnknownHostException e) { |
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// ignore |
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} |
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return pid + "@" + hostname; |
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} |
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private native int getProcessId(); |
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public String getVmName() { |
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return System.getProperty("java.vm.name"); |
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} |
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public String getVmVendor() { |
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return System.getProperty("java.vm.vendor"); |
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} |
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public String getVmVersion() { |
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return System.getProperty("java.vm.version"); |
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} |
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public String getVmSpecName() { |
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return System.getProperty("java.vm.specification.name"); |
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} |
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public String getVmSpecVendor() { |
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return System.getProperty("java.vm.specification.vendor"); |
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} |
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public String getVmSpecVersion() { |
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return System.getProperty("java.vm.specification.version"); |
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} |
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public String getClassPath() { |
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return System.getProperty("java.class.path"); |
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} |
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public String getLibraryPath() { |
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return System.getProperty("java.library.path"); |
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} |
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public String getBootClassPath( ) { |
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PrivilegedAction<String> pa |
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= new GetPropertyAction("sun.boot.class.path"); |
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String result = AccessController.doPrivileged(pa); |
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return result; |
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} |
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private List<String> vmArgs = null; |
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public synchronized List<String> getVmArguments() { |
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if (vmArgs == null) { |
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String[] args = getVmArguments0(); |
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List<String> l = ((args != null && args.length != 0) ? Arrays.asList(args) : |
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Collections.<String>emptyList()); |
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vmArgs = Collections.unmodifiableList(l); |
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} |
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return vmArgs; |
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} |
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public native String[] getVmArguments0(); |
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public native long getStartupTime(); |
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public native int getAvailableProcessors(); |
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// Compilation Subsystem |
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public String getCompilerName() { |
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String name = AccessController.doPrivileged( |
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new PrivilegedAction<String>() { |
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public String run() { |
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return System.getProperty("sun.management.compiler"); |
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} |
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}); |
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return name; |
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} |
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public native long getTotalCompileTime(); |
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// Thread Subsystem |
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public native long getTotalThreadCount(); |
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public native int getLiveThreadCount(); |
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public native int getPeakThreadCount(); |
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public native int getDaemonThreadCount(); |
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// Operating System |
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public String getOsName() { |
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return System.getProperty("os.name"); |
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} |
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public String getOsArch() { |
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return System.getProperty("os.arch"); |
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} |
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public String getOsVersion() { |
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return System.getProperty("os.version"); |
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} |
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// Hotspot-specific runtime support |
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public native long getSafepointCount(); |
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public native long getTotalSafepointTime(); |
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public native long getSafepointSyncTime(); |
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public native long getTotalApplicationNonStoppedTime(); |
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public native long getLoadedClassSize(); |
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public native long getUnloadedClassSize(); |
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public native long getClassLoadingTime(); |
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public native long getMethodDataSize(); |
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public native long getInitializedClassCount(); |
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public native long getClassInitializationTime(); |
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public native long getClassVerificationTime(); |
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// Performance Counter Support |
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private PerfInstrumentation perfInstr = null; |
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private boolean noPerfData = false; |
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private synchronized PerfInstrumentation getPerfInstrumentation() { |
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if (noPerfData || perfInstr != null) { |
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return perfInstr; |
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} |
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// construct PerfInstrumentation object |
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Perf perf = AccessController.doPrivileged(new Perf.GetPerfAction()); |
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try { |
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ByteBuffer bb = perf.attach(0, "r"); |
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if (bb.capacity() == 0) { |
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noPerfData = true; |
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return null; |
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} |
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perfInstr = new PerfInstrumentation(bb); |
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} catch (IllegalArgumentException e) { |
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// If the shared memory doesn't exist e.g. if -XX:-UsePerfData |
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// was set |
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noPerfData = true; |
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} catch (IOException e) { |
|
401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
mchung
parents:
2
diff
changeset
|
247 |
throw new AssertionError(e); |
2 | 248 |
} |
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return perfInstr; |
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} |
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public List<Counter> getInternalCounters(String pattern) { |
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PerfInstrumentation perf = getPerfInstrumentation(); |
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if (perf != null) { |
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return perf.findByPattern(pattern); |
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} else { |
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return Collections.emptyList(); |
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} |
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} |
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} |