/*

 * Copyright (c) 2017, 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.

 */

#include "gc/z/zLock.hpp"

#include "memory/allocation.hpp"

#include "oops/oopsHierarchy.hpp"

#include "utilities/globalDefinitions.hpp"

#ifndef SHARE_GC_Z_ZNMETHODDATA_HPP

#define SHARE_GC_Z_ZNMETHODDATA_HPP

class nmethod;

template <typename T> class GrowableArray;

class ZNMethodDataOops {

private:

  const size_t _nimmediates;

  bool         _has_non_immediates;

  static size_t header_size();

  ZNMethodDataOops(const GrowableArray<oop*>& immediates, bool has_non_immediates);

public:

  static ZNMethodDataOops* create(const GrowableArray<oop*>& immediates, bool has_non_immediates);

  static void destroy(ZNMethodDataOops* oops);

  size_t immediates_count() const;

  oop** immediates_begin() const;

  oop** immediates_end() const;

  bool has_non_immediates() const;

};

class ZNMethodData : public CHeapObj<mtGC> {

private:

  ZReentrantLock             _lock;

  ZNMethodDataOops* volatile _oops;

public:

  ZNMethodData();

  ~ZNMethodData();

  ZReentrantLock* lock();

  ZNMethodDataOops* oops() const;

  ZNMethodDataOops* swap_oops(ZNMethodDataOops* oops);

};

#endif // SHARE_GC_Z_ZNMETHODDATA_HPP