/*

 * Copyright (c) 2000, 2010, 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_VM_OOPS_METHODDATAKLASS_HPP

#define SHARE_VM_OOPS_METHODDATAKLASS_HPP

#include "oops/klass.hpp"

// a methodDataKlass is the klass of a methodDataOop

class methodDataKlass : public Klass {

  friend class VMStructs;

 private:

  juint _alloc_size; // allocation profiling support

 public:

  // Testing

  bool oop_is_methodData() const { return true; }

  // Allocation

  DEFINE_ALLOCATE_PERMANENT(methodDataKlass);

  methodDataOop allocate(methodHandle method, TRAPS);

  static klassOop create_klass(TRAPS);

  // Sizing

  int oop_size(oop obj) const;

  int klass_oop_size() const { return object_size(); }

  // Casting from klassOop

  static methodDataKlass* cast(klassOop k) {

    assert(k->klass_part()->oop_is_methodData(), "cast to methodDataKlass");

    return (methodDataKlass*) k->klass_part();

  }

  // Sizing

  static int header_size() {

    return oopDesc::header_size() + sizeof(methodDataKlass)/wordSize;

  }

  int object_size() const {

    return align_object_size(header_size());

  }

  // Garbage collection

  void oop_follow_contents(oop obj);

  int  oop_adjust_pointers(oop obj);

  bool oop_is_parsable(oop obj) const;

  // Parallel Scavenge and Parallel Old

  PARALLEL_GC_DECLS

  // Allocation profiling support

  juint alloc_size() const { return _alloc_size; }

  void  set_alloc_size(juint n) { _alloc_size = n; }

  // Iterators

  int oop_oop_iterate(oop obj, OopClosure* blk);

  int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);

 public:

  // Printing

  void oop_print_value_on(oop obj, outputStream* st);

#ifndef PRODUCT

  void oop_print_on      (oop obj, outputStream* st);

#endif //PRODUCT

  // Verify operations

  const char* internal_name() const;

  void oop_verify_on(oop obj, outputStream* st);

};

#endif // SHARE_VM_OOPS_METHODDATAKLASS_HPP