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Datei: g1RootClosures.hpp Sprache: C

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

#ifndef SHARE_GC_G1_G1ROOTCLOSURES_HPP
#define SHARE_GC_G1_G1ROOTCLOSURES_HPP

#include "memory/allocation.hpp"
#include "memory/iterator.hpp"

class G1CollectedHeap;
class G1ParScanThreadState;

class G1RootClosures : public CHeapObj<mtGC> {
public:
  // Closures to process raw oops in the root set.
  virtual OopClosure* strong_oops() = 0;

  // Closures to process CLDs in the root set.
  virtual CLDClosure* weak_clds() = 0;
  virtual CLDClosure* strong_clds() = 0;

  // Applied to code blobs reachable as strong roots.
  virtual CodeBlobClosure* strong_codeblobs() = 0;
};

class G1EvacuationRootClosures : public G1RootClosures {
public:
  // Applied to code blobs treated as weak roots.
  virtual CodeBlobClosure* weak_codeblobs() = 0;

  static G1EvacuationRootClosures* create_root_closures(G1ParScanThreadState* pss, G1CollectedHeap* g1h);
};

#endif // SHARE_GC_G1_G1ROOTCLOSURES_HPP

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