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src/share/vm/oops/klassOop.hpp@c7f3d0b4570f (annotated)

src/share/vm/oops/klassOop.hpp

Fri, 18 Mar 2011 16:00:34 -0700

author

never

date

Fri, 18 Mar 2011 16:00:34 -0700

changeset 2658

c7f3d0b4570f

parent 2314

f95d63e2154a

child 3131

b0efc7ee3b31

permissions

-rw-r--r--

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

duke@435	1	/*
never@2658	2	* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_OOPS_KLASSOOP_HPP
stefank@2314	26	#define SHARE_VM_OOPS_KLASSOOP_HPP
stefank@2314	27
stefank@2314	28	#include "oops/oop.hpp"
stefank@2314	29
duke@435	30	// A klassOop is the C++ equivalent of a Java class.
duke@435	31	// Part of a klassOopDesc is a Klass which handle the
duke@435	32	// dispatching for the C++ method calls.
duke@435	33
duke@435	34	// klassOop object layout:
duke@435	35	// [header ]
duke@435	36	// [klass_field]
duke@435	37	// [KLASS ]
duke@435	38
duke@435	39	class klassOopDesc : public oopDesc {
duke@435	40	public:
duke@435	41	// size operation
duke@435	42	static int header_size() { return sizeof(klassOopDesc)/HeapWordSize; }
duke@435	43
duke@435	44	// support for code generation
duke@435	45	static int klass_part_offset_in_bytes() { return sizeof(klassOopDesc); }
duke@435	46
duke@435	47	// returns the Klass part containing dispatching behavior
never@2658	48	Klass* klass_part() const { return (Klass*)((address)this + klass_part_offset_in_bytes()); }
never@2658	49
never@2658	50	// Convenience wrapper
never@2658	51	inline oop java_mirror() const;
never@2658	52
never@2658	53	private:
never@2658	54	// These have no implementation since klassOop should never be accessed in this fashion
never@2658	55	oop obj_field(int offset) const;
never@2658	56	void obj_field_put(int offset, oop value);
never@2658	57	void obj_field_raw_put(int offset, oop value);
never@2658	58
never@2658	59	jbyte byte_field(int offset) const;
never@2658	60	void byte_field_put(int offset, jbyte contents);
never@2658	61
never@2658	62	jchar char_field(int offset) const;
never@2658	63	void char_field_put(int offset, jchar contents);
never@2658	64
never@2658	65	jboolean bool_field(int offset) const;
never@2658	66	void bool_field_put(int offset, jboolean contents);
never@2658	67
never@2658	68	jint int_field(int offset) const;
never@2658	69	void int_field_put(int offset, jint contents);
never@2658	70
never@2658	71	jshort short_field(int offset) const;
never@2658	72	void short_field_put(int offset, jshort contents);
never@2658	73
never@2658	74	jlong long_field(int offset) const;
never@2658	75	void long_field_put(int offset, jlong contents);
never@2658	76
never@2658	77	jfloat float_field(int offset) const;
never@2658	78	void float_field_put(int offset, jfloat contents);
never@2658	79
never@2658	80	jdouble double_field(int offset) const;
never@2658	81	void double_field_put(int offset, jdouble contents);
never@2658	82
never@2658	83	address address_field(int offset) const;
never@2658	84	void address_field_put(int offset, address contents);
never@2658	85
never@2658	86	oop obj_field_acquire(int offset) const;
never@2658	87	void release_obj_field_put(int offset, oop value);
never@2658	88
never@2658	89	jbyte byte_field_acquire(int offset) const;
never@2658	90	void release_byte_field_put(int offset, jbyte contents);
never@2658	91
never@2658	92	jchar char_field_acquire(int offset) const;
never@2658	93	void release_char_field_put(int offset, jchar contents);
never@2658	94
never@2658	95	jboolean bool_field_acquire(int offset) const;
never@2658	96	void release_bool_field_put(int offset, jboolean contents);
never@2658	97
never@2658	98	jint int_field_acquire(int offset) const;
never@2658	99	void release_int_field_put(int offset, jint contents);
never@2658	100
never@2658	101	jshort short_field_acquire(int offset) const;
never@2658	102	void release_short_field_put(int offset, jshort contents);
never@2658	103
never@2658	104	jlong long_field_acquire(int offset) const;
never@2658	105	void release_long_field_put(int offset, jlong contents);
never@2658	106
never@2658	107	jfloat float_field_acquire(int offset) const;
never@2658	108	void release_float_field_put(int offset, jfloat contents);
never@2658	109
never@2658	110	jdouble double_field_acquire(int offset) const;
never@2658	111	void release_double_field_put(int offset, jdouble contents);
never@2658	112
never@2658	113	address address_field_acquire(int offset) const;
never@2658	114	void release_address_field_put(int offset, address contents);
duke@435	115	};
stefank@2314	116
stefank@2314	117	#endif // SHARE_VM_OOPS_KLASSOOP_HPP