1 /*
   2  * Copyright (c) 2003, 2008, 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/_compactingPermGenGen.cpp.incl"











  27 
  28 
  29 // An ObjectClosure helper: Recursively adjust all pointers in an object
  30 // and all objects by referenced it. Clear marks on objects in order to
  31 // prevent visiting any object twice. This helper is used when the
  32 // RedefineClasses() API has been called.
  33 
  34 class AdjustSharedObjectClosure : public ObjectClosure {
  35 public:
  36   void do_object(oop obj) {
  37     if (obj->is_shared_readwrite()) {
  38       if (obj->mark()->is_marked()) {
  39         obj->init_mark();         // Don't revisit this object.
  40         obj->adjust_pointers();   // Adjust this object's references.
  41       }
  42     }
  43   }
  44 };
  45 
  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 "memory/compactingPermGenGen.hpp"
  29 #include "memory/filemap.hpp"
  30 #include "memory/genOopClosures.inline.hpp"
  31 #include "memory/generation.inline.hpp"
  32 #include "memory/generationSpec.hpp"
  33 #include "oops/oop.inline.hpp"
  34 #include "runtime/java.hpp"
  35 #ifndef SERIALGC
  36 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp"
  37 #endif
  38 
  39 
  40 // An ObjectClosure helper: Recursively adjust all pointers in an object
  41 // and all objects by referenced it. Clear marks on objects in order to
  42 // prevent visiting any object twice. This helper is used when the
  43 // RedefineClasses() API has been called.
  44 
  45 class AdjustSharedObjectClosure : public ObjectClosure {
  46 public:
  47   void do_object(oop obj) {
  48     if (obj->is_shared_readwrite()) {
  49       if (obj->mark()->is_marked()) {
  50         obj->init_mark();         // Don't revisit this object.
  51         obj->adjust_pointers();   // Adjust this object's references.
  52       }
  53     }
  54   }
  55 };
  56 
  57