1 /*
   2  * Copyright (c) 2007, 2012, 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 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
  26 #define SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
  27 
  28 #include "memory/genOopClosures.hpp"

  29 
  30 // Closures for ParNewGeneration
  31 
  32 class ParScanThreadState;
  33 class ParNewGeneration;
  34 typedef Padded<OopTaskQueue> ObjToScanQueue;
  35 typedef GenericTaskQueueSet<ObjToScanQueue, mtGC> ObjToScanQueueSet;
  36 class ParallelTaskTerminator;
  37 
  38 class ParScanClosure: public OopsInKlassOrGenClosure {
  39  protected:
  40   ParScanThreadState* _par_scan_state;
  41   ParNewGeneration*   _g;
  42   HeapWord*           _boundary;
  43   template <class T> void inline par_do_barrier(T* p);
  44   template <class T> void inline do_oop_work(T* p,
  45                                              bool gc_barrier,
  46                                              bool root_scan);
  47  public:
  48   ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state);

   1 /*
   2  * Copyright (c) 2007, 2013, 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 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
  26 #define SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
  27 
  28 #include "memory/genOopClosures.hpp"
  29 #include "memory/padded.hpp"
  30 
  31 // Closures for ParNewGeneration
  32 
  33 class ParScanThreadState;
  34 class ParNewGeneration;
  35 typedef Padded<OopTaskQueue> ObjToScanQueue;
  36 typedef GenericTaskQueueSet<ObjToScanQueue, mtGC> ObjToScanQueueSet;
  37 class ParallelTaskTerminator;
  38 
  39 class ParScanClosure: public OopsInKlassOrGenClosure {
  40  protected:
  41   ParScanThreadState* _par_scan_state;
  42   ParNewGeneration*   _g;
  43   HeapWord*           _boundary;
  44   template <class T> void inline par_do_barrier(T* p);
  45   template <class T> void inline do_oop_work(T* p,
  46                                              bool gc_barrier,
  47                                              bool root_scan);
  48  public:
  49   ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state);