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src/share/vm/gc/g1/dirtyCardQueue.cpp

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rev 8362 : [mq]: hotspot
   1 /*
   2  * Copyright (c) 2001, 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 "gc_implementation/g1/dirtyCardQueue.hpp"
  27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
  28 #include "gc_implementation/g1/heapRegionRemSet.hpp"

  29 #include "runtime/atomic.inline.hpp"
  30 #include "runtime/mutexLocker.hpp"
  31 #include "runtime/safepoint.hpp"
  32 #include "runtime/thread.inline.hpp"
  33 #include "utilities/workgroup.hpp"
  34 
  35 bool DirtyCardQueue::apply_closure(CardTableEntryClosure* cl,
  36                                    bool consume,
  37                                    uint worker_i) {
  38   bool res = true;
  39   if (_buf != NULL) {
  40     res = apply_closure_to_buffer(cl, _buf, _index, _sz,
  41                                   consume,
  42                                   worker_i);
  43     if (res && consume) _index = _sz;
  44   }
  45   return res;
  46 }
  47 
  48 bool DirtyCardQueue::apply_closure_to_buffer(CardTableEntryClosure* cl,
  49                                              void** buf,
  50                                              size_t index, size_t sz,
  51                                              bool consume,
  52                                              uint worker_i) {
  53   if (cl == NULL) return true;


   1 /*
   2  * Copyright (c) 2001, 2015, 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 "gc/g1/dirtyCardQueue.hpp"
  27 #include "gc/g1/g1CollectedHeap.inline.hpp"
  28 #include "gc/g1/heapRegionRemSet.hpp"
  29 #include "gc/shared/workgroup.hpp"
  30 #include "runtime/atomic.inline.hpp"
  31 #include "runtime/mutexLocker.hpp"
  32 #include "runtime/safepoint.hpp"
  33 #include "runtime/thread.inline.hpp"

  34 
  35 bool DirtyCardQueue::apply_closure(CardTableEntryClosure* cl,
  36                                    bool consume,
  37                                    uint worker_i) {
  38   bool res = true;
  39   if (_buf != NULL) {
  40     res = apply_closure_to_buffer(cl, _buf, _index, _sz,
  41                                   consume,
  42                                   worker_i);
  43     if (res && consume) _index = _sz;
  44   }
  45   return res;
  46 }
  47 
  48 bool DirtyCardQueue::apply_closure_to_buffer(CardTableEntryClosure* cl,
  49                                              void** buf,
  50                                              size_t index, size_t sz,
  51                                              bool consume,
  52                                              uint worker_i) {
  53   if (cl == NULL) return true;


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