From e1bea0c0687c5f4551b3a6058ec37ce3705fa6cc Mon Sep 17 00:00:00 2001 From: Matthias Klose Date: Sun, 3 Jun 2007 23:18:43 +0000 Subject: libjava/classpath/ChangeLog.gcj: 2007-05-31 Matthias Klose * javax/management/NotificationBroadcasterSupport.java (getNotificationInfo): Add cast. * native/jni/qt-peer/Makefile.am (AM_CXXFLAGS): Add libstdc++ include directories. * native/jni/qt-peer/Makefile.in: Regenerate. libjava/ChangeLog: 2007-06-03 Matthias Klose * java/io/natFileWin32.cc (setFilePermissions): New (stub only). _access: Handle EXEC query, stub only. 2007-06-03 Matthias Klose Merged from classpath: * gnu/java/nio/SelectorProviderImpl.java: Whitespace merge. * java/lang/System.java(inheritedChannel): New. * java/lang/Character.java: Remove stray`;'. * java/net/MulticastSocket.java: Merged. * java/text/DateFormatSymbols.java(getInstance): New, comment updates. * java/text/Collator.java(getInstance): Merged. * java/util/Calendar.java: New attributes ALL_STYLES, SHORT, LONG. getDisplayName, getDisplayNames: New. * java/util/logging/Logger.java: Merged. * Regenerate .class and .h files. 2007-06-03 Matthias Klose * java/io/File.java: Merge with classpath-0.95, new method setFilePermissions, new attribute EXEC. * java/io/natFilePosix.cc (setFilePermissions): New. _access: Handle EXEC query. * classpath/lib/java/io/File.class, java/io/File.h: Regenerate. 2007-06-03 Matthias Klose Imported GNU Classpath 0.95. * classpath/Makefile.in, classpath/native/jni/midi-dssi/Makefile.in, classpath/native/jni/classpath/Makefile.in, classpath/native/jni/Makefile.in, classpath/native/jni/gconf-peer/Makefile.in, classpath/native/jni/java-io/Makefile.in, classpath/native/jni/native-lib/Makefile.in, classpath/native/jni/java-util/Makefile.in, classpath/native/jni/midi-alsa/Makefile.in, classpath/native/jni/java-lang/Makefile.in, classpath/native/jni/java-nio/Makefile.in, classpath/native/jni/java-net/Makefile.in, classpath/native/jni/xmlj/Makefile.in, classpath/native/jni/qt-peer/Makefile.in, classpath/native/jni/gtk-peer/Makefile.in, classpath/native/Makefile.in, classpath/native/jawt/Makefile.in, classpath/native/fdlibm/Makefile.in, classpath/native/plugin/Makefile.in, classpath/resource/Makefile.in, classpath/scripts/Makefile.in, classpath/tools/Makefile.in, classpath/doc/Makefile.in, classpath/doc/api/Makefile.in, classpath/lib/Makefile.in, classpath/external/Makefile.in, classpath/external/jsr166/Makefile.in, classpath/external/sax/Makefile.in, classpath/external/w3c_dom/Makefile.in, classpath/external/relaxngDatatype/Makefile.in, classpath/include/Makefile.in, classpath/examples/Makefile.in: Regenerate. * classpath/config.guess, classpath/config.sub, classpath/ltmain.sh : Update. * classpath/configure, classpath/depcomp, classpath/missing, classpath/aclocal.m4, classpath/install-sh: Regenerate. * gnu/classpath/Configuration.java (CLASSPATH_VERSION): Now 0.95. * sources.am: Regenerate. * Makefile.in: Regenerate. * Update the .class files and generated CNI header files, add new .class and generated CNI header files. * Remove generated files for removed java source files: classpath/gnu/java/net/BASE64.java, classpath/gnu/java/security/util/Base64.java, classpath/gnu/java/awt/peer/gtk/GThreadMutex.java, classpath/gnu/java/awt/peer/gtk/GThreadNativeMethodRunner.java, classpath/gnu/java/awt/font/autofit/Scaler.java, classpath/gnu/classpath/jdwp/util/Value.java, classpath/gnu/javax/net/ssl/Base64.java. * Remove empty directories. * Makefile.am(nat_source_files): Add natVMOperatingSystemMXBeanImpl.cc. * java/lang/Class.java(setAccessible): Merge from classpath. * java/util/Locale.java: Remove. * gnu/java/lang/management/VMOperatingSystemMXBeanImpl.java, gnu/java/lang/management/natVMOperatingSystemMXBeanImpl.cc: New. * gcj/javaprims.h: Update class declarations. * scripts/classes.pl: Update usage. * HACKING: Mention to build all peers. From-SVN: r125302 --- .../java/lang/management/MonitorInfo.java | 179 +++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 libjava/classpath/java/lang/management/MonitorInfo.java (limited to 'libjava/classpath/java/lang/management/MonitorInfo.java') diff --git a/libjava/classpath/java/lang/management/MonitorInfo.java b/libjava/classpath/java/lang/management/MonitorInfo.java new file mode 100644 index 00000000000..cba73a80de4 --- /dev/null +++ b/libjava/classpath/java/lang/management/MonitorInfo.java @@ -0,0 +1,179 @@ +/* MonitorInfo.java - Information on a monitor lock. + Copyright (C) 2006 Free Software Foundation + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package java.lang.management; + +import javax.management.openmbean.CompositeData; +import javax.management.openmbean.CompositeType; +import javax.management.openmbean.SimpleType; + +/** + * Provides information on a monitor lock held by a thread. + * A monitor lock is obtained when a thread enters a synchronized + * block or method. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.6 + */ +public class MonitorInfo + extends LockInfo +{ + + /** + * The stack depth at which the lock was obtained. + */ + private int stackDepth; + + /** + * The stack frame at which the lock was obtained. + */ + private StackTraceElement stackFrame; + + /** + * Constructs a new {@link MonitorInfo} using the specified + * lock class name and identity hash code, and the given + * stack depth and frame. + * + * @param className the class name of the lock object. + * @param identityHashCode the identity hash code of the lock object. + * @param stackDepth the depth of the stack at which the lock + * was obtained. + * @param stackFrame the frame of the stack at which the lock was + * obtained. + * @throws IllegalArgumentException if the stack depth and frame are + * inconsistent i.e. the frame is + * null but the depth is + * ≥ 0, or the frame is not + * null but the depth is + * < 0. + */ + public MonitorInfo(String className, int identityHashCode, int stackDepth, + StackTraceElement stackFrame) + { + super(className, identityHashCode); + if (stackFrame == null && stackDepth >= 0) + throw new IllegalArgumentException("The stack frame is null, but the " + + "stack depth is greater than or equal " + + "to zero."); + if (stackFrame != null && stackDepth < 0) + throw new IllegalArgumentException("The stack frame is not null, but the " + + "stack depth is less than zero."); + this.stackDepth = stackDepth; + this.stackFrame = stackFrame; + } + + /** + *

+ * Returns a {@link MonitorInfo} instance using the values + * given in the supplied + * {@link javax.management.openmbean.CompositeData} object. + * The composite data instance should contain the following + * attributes with the specified types: + *

+ * + * + * + * + * + * + *
NameType
classNamejava.lang.String
identityHashCodejava.lang.Integer
lockedStackDepthjava.lang.Integer
lockedStackFramejavax.management.openmbean.CompositeData + *
+ *

+ * The stack trace is further described as: + *

+ * + * + * + * + * + * + * + *
NameType
classNamejava.lang.String
methodNamejava.lang.String
fileNamejava.lang.String
lineNumberjava.lang.Integer
nativeMethodjava.lang.Boolean
+ * + * @param data the composite data structure to take values from. + * @return a new instance containing the values from the + * composite data structure, or null + * if the data structure was also null. + * @throws IllegalArgumentException if the composite data structure + * does not match the structure + * outlined above. + */ + public static MonitorInfo from(CompositeData data) + { + if (data == null) + return null; + CompositeType type = data.getCompositeType(); + ThreadInfo.checkAttribute(type, "ClassName", SimpleType.STRING); + ThreadInfo.checkAttribute(type, "IdentityHashCode", SimpleType.INTEGER); + ThreadInfo.checkAttribute(type, "LockedStackDepth", SimpleType.INTEGER); + ThreadInfo.checkAttribute(type, "LockedStackFrame", + ThreadInfo.getStackTraceType()); + CompositeData frame = (CompositeData) data.get("LockedStackFrame"); + return new MonitorInfo((String) data.get("ClassName"), + (Integer) data.get("IdentityHashCode"), + (Integer) data.get("LockedStackDepth"), + new StackTraceElement((String) frame.get("ClassName"), + (String) frame.get("MethodName"), + (String) frame.get("FileName"), + (Integer) frame.get("LineNumber"))); + } + + /** + * Returns the depth of the stack at which the lock was obtained. + * This works as an index into the array returned by + * {@link ThreadInfo#getStackTrace()}. + * + * @return the depth of the stack at which the lock was obtained, + * or a negative number if this information is unavailable. + */ + public int getLockedStackDepth() + { + return stackDepth; + } + + /** + * Returns the stack frame at which the lock was obtained. + * + * @return the stack frame at which the lock was obtained, + * or null if this informati0on is unavailable. + */ + public StackTraceElement getLockedStackFrame() + { + return stackFrame; + } + +} -- cgit v1.2.3