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src/share/vm/oops/methodDataKlass.hpp@f7c4174b33ba (annotated)

src/share/vm/oops/methodDataKlass.hpp

Tue, 13 Mar 2012 13:50:48 -0400

author

jiangli

date

Tue, 13 Mar 2012 13:50:48 -0400

changeset 3670

f7c4174b33ba

parent 2314

f95d63e2154a

permissions

-rw-r--r--

7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
Summary: Fold instanceKlass::_enclosing_method_class_index and instanceKlass::_enclosing_method_method_index into the instanceKlass::_inner_classes array.
Reviewed-by: never, coleenp
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

duke@435	1	/*
stefank@2314	2	* Copyright (c) 2000, 2010, 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_METHODDATAKLASS_HPP
stefank@2314	26	#define SHARE_VM_OOPS_METHODDATAKLASS_HPP
stefank@2314	27
stefank@2314	28	#include "oops/klass.hpp"
stefank@2314	29
duke@435	30	// a methodDataKlass is the klass of a methodDataOop
duke@435	31
duke@435	32	class methodDataKlass : public Klass {
duke@435	33	friend class VMStructs;
duke@435	34	private:
duke@435	35	juint _alloc_size; // allocation profiling support
duke@435	36	public:
duke@435	37	// Testing
duke@435	38	bool oop_is_methodData() const { return true; }
duke@435	39
duke@435	40	// Allocation
duke@435	41	DEFINE_ALLOCATE_PERMANENT(methodDataKlass);
duke@435	42	methodDataOop allocate(methodHandle method, TRAPS);
duke@435	43	static klassOop create_klass(TRAPS);
duke@435	44
duke@435	45	// Sizing
duke@435	46	int oop_size(oop obj) const;
duke@435	47	int klass_oop_size() const { return object_size(); }
duke@435	48
duke@435	49	// Casting from klassOop
duke@435	50	static methodDataKlass* cast(klassOop k) {
duke@435	51	assert(k->klass_part()->oop_is_methodData(), "cast to methodDataKlass");
duke@435	52	return (methodDataKlass*) k->klass_part();
duke@435	53	}
duke@435	54
duke@435	55	// Sizing
duke@435	56	static int header_size() {
duke@435	57	return oopDesc::header_size() + sizeof(methodDataKlass)/wordSize;
duke@435	58	}
duke@435	59	int object_size() const {
duke@435	60	return align_object_size(header_size());
duke@435	61	}
duke@435	62
duke@435	63	// Garbage collection
duke@435	64	void oop_follow_contents(oop obj);
duke@435	65	int oop_adjust_pointers(oop obj);
duke@435	66	bool oop_is_parsable(oop obj) const;
duke@435	67
duke@435	68	// Parallel Scavenge and Parallel Old
duke@435	69	PARALLEL_GC_DECLS
duke@435	70
duke@435	71	// Allocation profiling support
duke@435	72	juint alloc_size() const { return _alloc_size; }
duke@435	73	void set_alloc_size(juint n) { _alloc_size = n; }
duke@435	74
duke@435	75	// Iterators
duke@435	76	int oop_oop_iterate(oop obj, OopClosure* blk);
duke@435	77	int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
duke@435	78
duke@435	79	public:
duke@435	80	// Printing
jrose@1590	81	void oop_print_value_on(oop obj, outputStream* st);
jrose@1590	82	#ifndef PRODUCT
duke@435	83	void oop_print_on (oop obj, outputStream* st);
jrose@1590	84	#endif //PRODUCT
duke@435	85
duke@435	86	// Verify operations
duke@435	87	const char* internal_name() const;
duke@435	88	void oop_verify_on(oop obj, outputStream* st);
duke@435	89	};
stefank@2314	90
stefank@2314	91	#endif // SHARE_VM_OOPS_METHODDATAKLASS_HPP