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src/share/vm/oops/klassOop.hpp@a79cb7c55012 (annotated)

src/share/vm/oops/klassOop.hpp

Wed, 25 Jan 2012 17:40:51 -0500

author

jiangli

date

Wed, 25 Jan 2012 17:40:51 -0500

changeset 3526

a79cb7c55012

parent 3391

069ab3f976d3

permissions

-rw-r--r--

7132690: InstanceKlass:_reference_type should be u1 type
Summary: Change InstanceKlass::_reference_type to u1 type.
Reviewed-by: dholmes, coleenp, acorn
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

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	// returns the Klass part containing dispatching behavior
stefank@3391	42	Klass* klass_part() const { return (Klass*)((address)this + sizeof(klassOopDesc)); }
never@2658	43
never@2658	44	// Convenience wrapper
never@2658	45	inline oop java_mirror() const;
never@2658	46
never@2658	47	private:
never@2658	48	// These have no implementation since klassOop should never be accessed in this fashion
never@2658	49	oop obj_field(int offset) const;
twisti@3131	50	volatile oop obj_field_volatile(int offset) const;
never@2658	51	void obj_field_put(int offset, oop value);
twisti@3131	52	void obj_field_put_raw(int offset, oop value);
twisti@3131	53	void obj_field_put_volatile(int offset, oop value);
never@2658	54
never@2658	55	jbyte byte_field(int offset) const;
never@2658	56	void byte_field_put(int offset, jbyte contents);
never@2658	57
never@2658	58	jchar char_field(int offset) const;
never@2658	59	void char_field_put(int offset, jchar contents);
never@2658	60
never@2658	61	jboolean bool_field(int offset) const;
never@2658	62	void bool_field_put(int offset, jboolean contents);
never@2658	63
never@2658	64	jint int_field(int offset) const;
never@2658	65	void int_field_put(int offset, jint contents);
never@2658	66
never@2658	67	jshort short_field(int offset) const;
never@2658	68	void short_field_put(int offset, jshort contents);
never@2658	69
never@2658	70	jlong long_field(int offset) const;
never@2658	71	void long_field_put(int offset, jlong contents);
never@2658	72
never@2658	73	jfloat float_field(int offset) const;
never@2658	74	void float_field_put(int offset, jfloat contents);
never@2658	75
never@2658	76	jdouble double_field(int offset) const;
never@2658	77	void double_field_put(int offset, jdouble contents);
never@2658	78
never@2658	79	address address_field(int offset) const;
never@2658	80	void address_field_put(int offset, address contents);
never@2658	81
never@2658	82	oop obj_field_acquire(int offset) const;
never@2658	83	void release_obj_field_put(int offset, oop value);
never@2658	84
never@2658	85	jbyte byte_field_acquire(int offset) const;
never@2658	86	void release_byte_field_put(int offset, jbyte contents);
never@2658	87
never@2658	88	jchar char_field_acquire(int offset) const;
never@2658	89	void release_char_field_put(int offset, jchar contents);
never@2658	90
never@2658	91	jboolean bool_field_acquire(int offset) const;
never@2658	92	void release_bool_field_put(int offset, jboolean contents);
never@2658	93
never@2658	94	jint int_field_acquire(int offset) const;
never@2658	95	void release_int_field_put(int offset, jint contents);
never@2658	96
never@2658	97	jshort short_field_acquire(int offset) const;
never@2658	98	void release_short_field_put(int offset, jshort contents);
never@2658	99
never@2658	100	jlong long_field_acquire(int offset) const;
never@2658	101	void release_long_field_put(int offset, jlong contents);
never@2658	102
never@2658	103	jfloat float_field_acquire(int offset) const;
never@2658	104	void release_float_field_put(int offset, jfloat contents);
never@2658	105
never@2658	106	jdouble double_field_acquire(int offset) const;
never@2658	107	void release_double_field_put(int offset, jdouble contents);
never@2658	108
never@2658	109	address address_field_acquire(int offset) const;
never@2658	110	void release_address_field_put(int offset, address contents);
duke@435	111	};
stefank@2314	112
stefank@2314	113	#endif // SHARE_VM_OOPS_KLASSOOP_HPP