1 /*
   2  * Copyright (c) 2003, 2009, 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.
   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  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_jvmtiTagMap.cpp.incl"























  27 
  28 // JvmtiTagHashmapEntry
  29 //
  30 // Each entry encapsulates a JNI weak reference to the tagged object
  31 // and the tag value. In addition an entry includes a next pointer which
  32 // is used to chain entries together.
  33 
  34 class JvmtiTagHashmapEntry : public CHeapObj {
  35  private:
  36   friend class JvmtiTagMap;
  37 
  38   jweak _object;                        // JNI weak ref to tagged object
  39   jlong _tag;                           // the tag
  40   JvmtiTagHashmapEntry* _next;          // next on the list
  41 
  42   inline void init(jweak object, jlong tag) {
  43     _object = object;
  44     _tag = tag;
  45     _next = NULL;
  46   }

   1 /*
   2  * Copyright (c) 2003, 2010, 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.
   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  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/symbolTable.hpp"
  27 #include "classfile/systemDictionary.hpp"
  28 #include "classfile/vmSymbols.hpp"
  29 #include "jvmtifiles/jvmtiEnv.hpp"
  30 #include "oops/objArrayKlass.hpp"
  31 #include "oops/oop.inline2.hpp"
  32 #include "prims/jvmtiEventController.hpp"
  33 #include "prims/jvmtiEventController.inline.hpp"
  34 #include "prims/jvmtiExport.hpp"
  35 #include "prims/jvmtiImpl.hpp"
  36 #include "prims/jvmtiTagMap.hpp"
  37 #include "runtime/biasedLocking.hpp"
  38 #include "runtime/javaCalls.hpp"
  39 #include "runtime/jniHandles.hpp"
  40 #include "runtime/mutex.hpp"
  41 #include "runtime/mutexLocker.hpp"
  42 #include "runtime/reflectionUtils.hpp"
  43 #include "runtime/vframe.hpp"
  44 #include "runtime/vmThread.hpp"
  45 #include "runtime/vm_operations.hpp"
  46 #include "services/serviceUtil.hpp"
  47 #ifndef SERIALGC
  48 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
  49 #endif
  50 
  51 // JvmtiTagHashmapEntry
  52 //
  53 // Each entry encapsulates a JNI weak reference to the tagged object
  54 // and the tag value. In addition an entry includes a next pointer which
  55 // is used to chain entries together.
  56 
  57 class JvmtiTagHashmapEntry : public CHeapObj {
  58  private:
  59   friend class JvmtiTagMap;
  60 
  61   jweak _object;                        // JNI weak ref to tagged object
  62   jlong _tag;                           // the tag
  63   JvmtiTagHashmapEntry* _next;          // next on the list
  64 
  65   inline void init(jweak object, jlong tag) {
  66     _object = object;
  67     _tag = tag;
  68     _next = NULL;
  69   }