1 /*
   2  * Copyright (c) 2012, 2019, 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
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  24 
  25 #ifndef SHARE_GC_G1_G1EVACFAILURE_HPP
  26 #define SHARE_GC_G1_G1EVACFAILURE_HPP
  27 
  28 #include "gc/g1/g1OopClosures.hpp"
  29 #include "gc/g1/heapRegionManager.hpp"
  30 #include "gc/shared/workgroup.hpp"
  31 #include "utilities/globalDefinitions.hpp"
  32 
  33 class G1CollectedHeap;
  34 class G1RedirtyCardsQueueSet;
  35 
  36 // Task to fixup self-forwarding pointers
  37 // installed as a result of an evacuation failure.
  38 class G1ParRemoveSelfForwardPtrsTask: public AbstractGangTask {
  39 protected:
  40   G1CollectedHeap* _g1h;
  41   G1RedirtyCardsQueueSet* _rdcqs;
  42   HeapRegionClaimer _hrclaimer;
  43 
  44 public:
  45   G1ParRemoveSelfForwardPtrsTask(G1RedirtyCardsQueueSet* rdcqs);
  46 
  47   void work(uint worker_id);
  48 };
  49 
  50 #endif // SHARE_GC_G1_G1EVACFAILURE_HPP