/*

 * Copyright (c) 2016, 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

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

 * questions.

 *

 */

#ifndef SHARE_GC_SHARED_REFERENCEPROCESSOR_INLINE_HPP

#define SHARE_GC_SHARED_REFERENCEPROCESSOR_INLINE_HPP

#include "gc/shared/referenceProcessor.hpp"

#include "oops/compressedOops.inline.hpp"

#include "oops/oop.hpp"

oop DiscoveredList::head() const {

  return UseCompressedOops ?  CompressedOops::decode(_compressed_head) :

    _oop_head;

}

void DiscoveredList::set_head(oop o) {

  if (UseCompressedOops) {

    // Must compress the head ptr.

    _compressed_head = CompressedOops::encode(o);

  } else {

    _oop_head = o;

  }

}

bool DiscoveredList::is_empty() const {

 return head() == NULL;

}

void DiscoveredList::clear() {

  set_head(NULL);

  set_length(0);

}

DiscoveredListIterator::DiscoveredListIterator(DiscoveredList&    refs_list,

                                               OopClosure*        keep_alive,

                                               BoolObjectClosure* is_alive):

  _refs_list(refs_list),

  _prev_discovered_addr(refs_list.adr_head()),

  _prev_discovered(NULL),

  _current_discovered(refs_list.head()),

  _current_discovered_addr(NULL),

  _next_discovered(NULL),

  _referent_addr(NULL),

  _referent(NULL),

  _keep_alive(keep_alive),

  _is_alive(is_alive),

#ifdef ASSERT

  _first_seen(refs_list.head()),

#endif

  _processed(0),

  _removed(0) {

}

#endif // SHARE_GC_SHARED_REFERENCEPROCESSOR_INLINE_HPP