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Datei: zSafeDelete.hpp Sprache: C

/*
* Copyright (c) 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_Z_ZSAFEDELETE_HPP
#define SHARE_GC_Z_ZSAFEDELETE_HPP

#include "gc/z/zArray.hpp"
#include "gc/z/zLock.hpp"
#include "metaprogramming/removeExtent.hpp"

template <typename T>
class ZSafeDeleteImpl {
private:
  typedef typename RemoveExtent<T>::type ItemT;

  ZLock*         _lock;
  uint64_t       _enabled;
  ZArray<ItemT*> _deferred;

  bool deferred_delete(ItemT* item);
  void immediate_delete(ItemT* item);

public:
  ZSafeDeleteImpl(ZLock* lock);

  void enable_deferred_delete();
  void disable_deferred_delete();

  void operator()(ItemT* item);
};

template <typename T>
class ZSafeDelete : public ZSafeDeleteImpl<T> {
private:
  ZLock _lock;

public:
  ZSafeDelete();
};

template <typename T>
class ZSafeDeleteNoLock : public ZSafeDeleteImpl<T> {
public:
  ZSafeDeleteNoLock();
};

#endif // SHARE_GC_Z_ZSAFEDELETE_HPP

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