/*

 * Copyright (c) 2015, 2018, 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.

 *

 * 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_Z_ZOOPCLOSURES_HPP

#define SHARE_GC_Z_ZOOPCLOSURES_HPP

#include "memory/iterator.hpp"

#include "gc/z/zRootsIterator.hpp"

class ZLoadBarrierOopClosure : public BasicOopIterateClosure {

public:

  virtual void do_oop(oop* p);

  virtual void do_oop(narrowOop* p);

#ifdef ASSERT

  virtual bool should_verify_oops() {

    return false;

  }

#endif

};

class ZNMethodOopClosure : public OopClosure {

public:

  virtual void do_oop(oop* p);

  virtual void do_oop(narrowOop* p);

};

template <bool finalizable>

class ZMarkBarrierOopClosure : public MetadataVisitingOopIterateClosure {

public:

  ZMarkBarrierOopClosure();

  virtual void do_oop(oop* p);

  virtual void do_oop(narrowOop* p);

  virtual void do_klass(Klass* k);

  virtual void do_cld(ClassLoaderData* cld);

#ifdef ASSERT

  virtual bool should_verify_oops() {

    return false;

  }

#endif

};

class ZPhantomIsAliveObjectClosure : public BoolObjectClosure {

public:

  virtual bool do_object_b(oop o);

};

class ZPhantomKeepAliveOopClosure : public ZRootsIteratorClosure {

public:

  virtual void do_oop(oop* p);

  virtual void do_oop(narrowOop* p);

};

class ZPhantomCleanOopClosure : public ZRootsIteratorClosure {

public:

  virtual void do_oop(oop* p);

  virtual void do_oop(narrowOop* p);

};

class ZVerifyOopClosure : public ZRootsIteratorClosure, public BasicOopIterateClosure {

public:

  virtual void do_oop(oop* p);

  virtual void do_oop(narrowOop* p);

  virtual ReferenceIterationMode reference_iteration_mode() {

    return DO_FIELDS;

  }

#ifdef ASSERT

  // Verification handled by the closure itself

  virtual bool should_verify_oops() {

    return false;

  }

#endif

};

class ZVerifyObjectClosure : public ObjectClosure {

public:

  virtual void do_object(oop o);

};

#endif // SHARE_GC_Z_ZOOPCLOSURES_HPP