/*

 * Copyright (c) 2019, Red Hat, Inc. All rights reserved.

 *

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef SHARE_GC_SHENANDOAH_SHENANDOAHCLOSURES_HPP

#define SHARE_GC_SHENANDOAH_SHENANDOAHCLOSURES_HPP

#include "memory/iterator.hpp"

class ShenandoahHeap;

class ShenandoahMarkingContext;

class Thread;

class ShenandoahForwardedIsAliveClosure: public BoolObjectClosure {

private:

  ShenandoahMarkingContext* const _mark_context;

public:

  inline ShenandoahForwardedIsAliveClosure();

  inline bool do_object_b(oop obj);

};

class ShenandoahIsAliveClosure: public BoolObjectClosure {

private:

  ShenandoahMarkingContext* const _mark_context;

public:

  inline ShenandoahIsAliveClosure();

  inline bool do_object_b(oop obj);

};

class ShenandoahIsAliveSelector : public StackObj {

private:

  ShenandoahIsAliveClosure _alive_cl;

  ShenandoahForwardedIsAliveClosure _fwd_alive_cl;

public:

  inline BoolObjectClosure* is_alive_closure();

};

class ShenandoahUpdateRefsClosure: public OopClosure {

private:

  ShenandoahHeap* _heap;

public:

  inline ShenandoahUpdateRefsClosure();

  inline void do_oop(oop* p);

  inline void do_oop(narrowOop* p);

private:

  template <class T>

  inline void do_oop_work(T* p);

};

class ShenandoahEvacuateUpdateRootsClosure: public BasicOopIterateClosure {

private:

  ShenandoahHeap* _heap;

  Thread* _thread;

public:

  inline ShenandoahEvacuateUpdateRootsClosure();

  inline void do_oop(oop* p);

  inline void do_oop(narrowOop* p);

private:

  template <class T>

  inline void do_oop_work(T* p);

};

class ShenandoahEvacUpdateOopStorageRootsClosure : public BasicOopIterateClosure {

private:

  ShenandoahHeap* _heap;

  Thread* _thread;

public:

  inline ShenandoahEvacUpdateOopStorageRootsClosure();

  inline void do_oop(oop* p);

  inline void do_oop(narrowOop* p);

};

#ifdef ASSERT

class ShenandoahAssertNotForwardedClosure : public OopClosure {

private:

  template <class T>

  inline void do_oop_work(T* p);

public:

  inline void do_oop(narrowOop* p);

  inline void do_oop(oop* p);

};

#endif // ASSERT

#endif // SHARE_GC_SHENANDOAH_SHENANDOAHCLOSURES_HPP