src/hotspot/share/gc/shenandoah/shenandoahCollectionSetPreselector.hpp

/*
 * Copyright Amazon.com Inc. 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_SHENANDOAH_SHENANDOAHCOLLECTIONSETPRESELECTOR_HPP
#define SHARE_GC_SHENANDOAH_SHENANDOAHCOLLECTIONSETPRESELECTOR_HPP

#include "gc/shenandoah/shenandoahCollectionSet.hpp"
#include "memory/resourceArea.hpp"

class ShenandoahCollectionSetPreselector : public StackObj {
  ShenandoahCollectionSet* _cset;
  bool* _pset;
  ResourceMark _rm;

public:
  ShenandoahCollectionSetPreselector(ShenandoahCollectionSet* cset, size_t num_regions):
    _cset(cset) {
    _pset = NEW_RESOURCE_ARRAY(bool, num_regions);
    for (unsigned int i = 0; i < num_regions; i++) {
        _pset[i] = false;
    }
    _cset->establish_preselected(_pset);
  }

  ~ShenandoahCollectionSetPreselector() {
    _cset->abandon_preselected();
  }
};

#endif // SHARE_GC_SHENANDOAH_SHENANDOAHCOLLECTIONSETPRESELECTOR_HPP