Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/ConcurrentLocksPrinter.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children |
| rev | line source |
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| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.runtime; | |
| 26 | |
| 27 import java.io.*; | |
| 28 import java.util.*; | |
| 29 import sun.jvm.hotspot.memory.*; | |
| 30 import sun.jvm.hotspot.oops.*; | |
| 31 | |
| 32 public class ConcurrentLocksPrinter { | |
| 33 private Map locksMap = new HashMap(); // <JavaThread, List<Oop>> | |
| 34 | |
| 35 public ConcurrentLocksPrinter() { | |
| 36 fillLocks(); | |
| 37 } | |
| 38 | |
| 39 public void print(JavaThread jthread, PrintStream tty) { | |
| 40 List locks = (List) locksMap.get(jthread); | |
| 41 tty.println("Locked ownable synchronizers:"); | |
| 42 if (locks == null || locks.isEmpty()) { | |
| 43 tty.println(" - None"); | |
| 44 } else { | |
| 45 for (Iterator itr = locks.iterator(); itr.hasNext();) { | |
| 46 Oop oop = (Oop) itr.next(); | |
| 47 tty.println(" - <" + oop.getHandle() + ">, (a " + | |
| 48 oop.getKlass().getName().asString() + ")"); | |
| 49 } | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 //-- Internals only below this point | |
| 54 private JavaThread getOwnerThread(Oop oop) { | |
| 55 Oop threadOop = OopUtilities.abstractOwnableSynchronizerGetOwnerThread(oop); | |
| 56 if (threadOop == null) { | |
| 57 return null; | |
| 58 } else { | |
| 59 return OopUtilities.threadOopGetJavaThread(threadOop); | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 private void fillLocks() { | |
| 64 VM vm = VM.getVM(); | |
| 65 SystemDictionary sysDict = vm.getSystemDictionary(); | |
| 66 Klass absOwnSyncKlass = sysDict.getAbstractOwnableSynchronizerKlass(); | |
| 67 ObjectHeap heap = vm.getObjectHeap(); | |
| 68 // may be not loaded at all | |
| 69 if (absOwnSyncKlass != null) { | |
| 70 heap.iterateObjectsOfKlass(new DefaultHeapVisitor() { | |
| 71 public boolean doObj(Oop oop) { | |
| 72 JavaThread thread = getOwnerThread(oop); | |
| 73 if (thread != null) { | |
| 74 List locks = (List) locksMap.get(thread); | |
| 75 if (locks == null) { | |
| 76 locks = new LinkedList(); | |
| 77 locksMap.put(thread, locks); | |
| 78 } | |
| 79 locks.add(oop); | |
| 80 } | |
| 81 return false; | |
| 82 } | |
| 83 | |
| 84 }, absOwnSyncKlass, true); | |
| 85 } | |
| 86 } | |
| 87 } |