/*

 * Copyright (c) 2015, 2019, 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

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 */

#ifndef SHARE_GC_Z_ZRELOCATE_HPP

#define SHARE_GC_Z_ZRELOCATE_HPP

#include "gc/z/zRelocationSet.hpp"

#include "gc/z/zWorkers.hpp"

#include "memory/allocation.hpp"

class ZForwarding;

class ZRelocate {

  friend class ZRelocateTask;

private:

  ZWorkers* const _workers;

  ZForwarding* forwarding_for_page(ZPage* page) const;

  uintptr_t relocate_object_inner(ZForwarding* forwarding, uintptr_t from_index, uintptr_t from_offset) const;

  bool work(ZRelocationSetParallelIterator* iter);

public:

  ZRelocate(ZWorkers* workers);

  uintptr_t relocate_object(ZForwarding* forwarding, uintptr_t from_addr) const;

  uintptr_t forward_object(ZForwarding* forwarding, uintptr_t from_addr) const;

  void start();

  bool relocate(ZRelocationSet* relocation_set);

};

#endif // SHARE_GC_Z_ZRELOCATE_HPP