jdk8-mips64-public/hotspot: src/share/vm/oops/klassOop.hpp@c7f3d0b4570f

7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank

     1 /*

     2  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_OOPS_KLASSOOP_HPP

    26 #define SHARE_VM_OOPS_KLASSOOP_HPP

    28 #include "oops/oop.hpp"

    30 // A klassOop is the C++ equivalent of a Java class.

    31 // Part of a klassOopDesc is a Klass which handle the

    32 // dispatching for the C++ method calls.

    34 //  klassOop object layout:

    35 //    [header     ]

    36 //    [klass_field]

    37 //    [KLASS      ]

    39 class klassOopDesc : public oopDesc {

    40  public:

    41   // size operation

    42   static int header_size()                       { return sizeof(klassOopDesc)/HeapWordSize; }

    44   // support for code generation

    45   static int klass_part_offset_in_bytes()        { return sizeof(klassOopDesc); }

    47   // returns the Klass part containing dispatching behavior

    48   Klass* klass_part() const                      { return (Klass*)((address)this + klass_part_offset_in_bytes()); }

    50   // Convenience wrapper

    51   inline oop java_mirror() const;

    53  private:

    54   // These have no implementation since klassOop should never be accessed in this fashion

    55   oop obj_field(int offset) const;

    56   void obj_field_put(int offset, oop value);

    57   void obj_field_raw_put(int offset, oop value);

    59   jbyte byte_field(int offset) const;

    60   void byte_field_put(int offset, jbyte contents);

    62   jchar char_field(int offset) const;

    63   void char_field_put(int offset, jchar contents);

    65   jboolean bool_field(int offset) const;

    66   void bool_field_put(int offset, jboolean contents);

    68   jint int_field(int offset) const;

    69   void int_field_put(int offset, jint contents);

    71   jshort short_field(int offset) const;

    72   void short_field_put(int offset, jshort contents);

    74   jlong long_field(int offset) const;

    75   void long_field_put(int offset, jlong contents);

    77   jfloat float_field(int offset) const;

    78   void float_field_put(int offset, jfloat contents);

    80   jdouble double_field(int offset) const;

    81   void double_field_put(int offset, jdouble contents);

    83   address address_field(int offset) const;

    84   void address_field_put(int offset, address contents);

    86   oop obj_field_acquire(int offset) const;

    87   void release_obj_field_put(int offset, oop value);

    89   jbyte byte_field_acquire(int offset) const;

    90   void release_byte_field_put(int offset, jbyte contents);

    92   jchar char_field_acquire(int offset) const;

    93   void release_char_field_put(int offset, jchar contents);

    95   jboolean bool_field_acquire(int offset) const;

    96   void release_bool_field_put(int offset, jboolean contents);

    98   jint int_field_acquire(int offset) const;

    99   void release_int_field_put(int offset, jint contents);

   101   jshort short_field_acquire(int offset) const;

   102   void release_short_field_put(int offset, jshort contents);

   104   jlong long_field_acquire(int offset) const;

   105   void release_long_field_put(int offset, jlong contents);

   107   jfloat float_field_acquire(int offset) const;

   108   void release_float_field_put(int offset, jfloat contents);

   110   jdouble double_field_acquire(int offset) const;

   111   void release_double_field_put(int offset, jdouble contents);

   113   address address_field_acquire(int offset) const;

   114   void release_address_field_put(int offset, address contents);

   115 };

   117 #endif // SHARE_VM_OOPS_KLASSOOP_HPP

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