/*
 * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef SHARE_VM_GC_G1_G1EVACFAILURE_HPP
#define SHARE_VM_GC_G1_G1EVACFAILURE_HPP

#include "gc/g1/g1OopClosures.hpp"
#include "gc/g1/heapRegionManager.hpp"
#include "gc/shared/workgroup.hpp"
#include "utilities/globalDefinitions.hpp"

class G1CollectedHeap;

class OopAndMarkOop {
  oop _o;
  markOop _m;
 public:
  OopAndMarkOop(oop obj, markOop m) : _o(obj), _m(m) {
  }

  void set_mark() {
    _o->set_mark(_m);
  }
};

typedef Stack<OopAndMarkOop,mtGC> OopAndMarkOopStack;

// Task to fixup self-forwarding pointers
// installed as a result of an evacuation failure.
class G1ParRemoveSelfForwardPtrsTask: public AbstractGangTask {
protected:
  G1CollectedHeap* _g1h;
  HeapRegionClaimer _hrclaimer;

public:
  G1ParRemoveSelfForwardPtrsTask();

  void work(uint worker_id);
};

class G1RestorePreservedMarksTask : public AbstractGangTask {
  OopAndMarkOopStack* _preserved_objs;
 public:
  G1RestorePreservedMarksTask(OopAndMarkOopStack* preserved_objs);

  void work(uint worker_id);
};

#endif // SHARE_VM_GC_G1_G1EVACFAILURE_HPP