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src/share/vm/ci/ciInstanceKlass.hpp@f95d63e2154a (annotated)

src/share/vm/ci/ciInstanceKlass.hpp

Tue, 23 Nov 2010 13:22:55 -0800

author

stefank

date

Tue, 23 Nov 2010 13:22:55 -0800

changeset 2314

f95d63e2154a

parent 2000

3941674cc7fa

child 3701

49036505ab5f

permissions

-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

duke@435	1	/*
never@2000	2	* Copyright (c) 1999, 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_CI_CIINSTANCEKLASS_HPP
stefank@2314	26	#define SHARE_VM_CI_CIINSTANCEKLASS_HPP
stefank@2314	27
stefank@2314	28	#include "ci/ciConstantPoolCache.hpp"
stefank@2314	29	#include "ci/ciFlags.hpp"
stefank@2314	30	#include "ci/ciInstanceKlassKlass.hpp"
stefank@2314	31	#include "ci/ciKlass.hpp"
stefank@2314	32	#include "ci/ciSymbol.hpp"
stefank@2314	33
duke@435	34	// ciInstanceKlass
duke@435	35	//
duke@435	36	// This class represents a klassOop in the HotSpot virtual machine
duke@435	37	// whose Klass part is an instanceKlass. It may or may not
duke@435	38	// be loaded.
duke@435	39	class ciInstanceKlass : public ciKlass {
duke@435	40	CI_PACKAGE_ACCESS
twisti@1573	41	friend class ciBytecodeStream;
duke@435	42	friend class ciEnv;
twisti@1573	43	friend class ciExceptionHandler;
duke@435	44	friend class ciMethod;
duke@435	45	friend class ciField;
duke@435	46
duke@435	47	private:
duke@435	48	jobject _loader;
duke@435	49	jobject _protection_domain;
duke@435	50
never@2000	51	instanceKlass::ClassState _init_state; // state of class
coleenp@548	52	bool _is_shared;
duke@435	53	bool _has_finalizer;
duke@435	54	bool _has_subklass;
coleenp@548	55	bool _has_nonstatic_fields;
coleenp@548	56
duke@435	57	ciFlags _flags;
duke@435	58	jint _nonstatic_field_size;
kvn@479	59	jint _nonstatic_oop_map_size;
duke@435	60
duke@435	61	// Lazy fields get filled in only upon request.
duke@435	62	ciInstanceKlass* _super;
duke@435	63	ciInstance* _java_mirror;
duke@435	64
duke@435	65	ciConstantPoolCache* _field_cache; // cached map index->field
duke@435	66	GrowableArray<ciField*>* _nonstatic_fields;
duke@435	67
duke@435	68	enum { implementors_limit = instanceKlass::implementors_limit };
duke@435	69	ciInstanceKlass* _implementors[implementors_limit];
duke@435	70	jint _nof_implementors;
duke@435	71
kvn@479	72	GrowableArray<ciField*>* _non_static_fields;
kvn@479	73
duke@435	74	protected:
duke@435	75	ciInstanceKlass(KlassHandle h_k);
duke@435	76	ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain);
duke@435	77
duke@435	78	instanceKlass* get_instanceKlass() const {
duke@435	79	return (instanceKlass*)get_Klass();
duke@435	80	}
duke@435	81
duke@435	82	oop loader();
duke@435	83	jobject loader_handle();
duke@435	84
duke@435	85	oop protection_domain();
duke@435	86	jobject protection_domain_handle();
duke@435	87
duke@435	88	const char* type_string() { return "ciInstanceKlass"; }
duke@435	89
twisti@1573	90	bool is_in_package_impl(const char* packagename, int len);
twisti@1573	91
duke@435	92	void print_impl(outputStream* st);
duke@435	93
duke@435	94	ciConstantPoolCache* field_cache();
duke@435	95
duke@435	96	bool is_shared() { return _is_shared; }
duke@435	97
never@2000	98	void compute_shared_init_state();
duke@435	99	bool compute_shared_has_subklass();
duke@435	100	int compute_shared_nof_implementors();
duke@435	101	int compute_nonstatic_fields();
duke@435	102	GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields);
duke@435	103
never@2000	104	// Update the init_state for shared klasses
never@2000	105	void update_if_shared(instanceKlass::ClassState expected) {
never@2000	106	if (_is_shared && _init_state != expected) {
never@2000	107	if (is_loaded()) compute_shared_init_state();
never@2000	108	}
never@2000	109	}
never@2000	110
duke@435	111	public:
duke@435	112	// Has this klass been initialized?
duke@435	113	bool is_initialized() {
never@2000	114	update_if_shared(instanceKlass::fully_initialized);
never@2000	115	return _init_state == instanceKlass::fully_initialized;
never@2000	116	}
never@2000	117	// Is this klass being initialized?
never@2000	118	bool is_being_initialized() {
never@2000	119	update_if_shared(instanceKlass::being_initialized);
never@2000	120	return _init_state == instanceKlass::being_initialized;
duke@435	121	}
duke@435	122	// Has this klass been linked?
duke@435	123	bool is_linked() {
never@2000	124	update_if_shared(instanceKlass::linked);
never@2000	125	return _init_state >= instanceKlass::linked;
duke@435	126	}
duke@435	127
duke@435	128	// General klass information.
duke@435	129	ciFlags flags() {
duke@435	130	assert(is_loaded(), "must be loaded");
duke@435	131	return _flags;
duke@435	132	}
duke@435	133	bool has_finalizer() {
duke@435	134	assert(is_loaded(), "must be loaded");
duke@435	135	return _has_finalizer; }
duke@435	136	bool has_subklass() {
duke@435	137	assert(is_loaded(), "must be loaded");
duke@435	138	if (_is_shared && !_has_subklass) {
duke@435	139	if (flags().is_final()) {
duke@435	140	return false;
duke@435	141	} else {
duke@435	142	return compute_shared_has_subklass();
duke@435	143	}
duke@435	144	}
duke@435	145	return _has_subklass;
duke@435	146	}
duke@435	147	jint size_helper() {
duke@435	148	return (Klass::layout_helper_size_in_bytes(layout_helper())
duke@435	149	>> LogHeapWordSize);
duke@435	150	}
duke@435	151	jint nonstatic_field_size() {
duke@435	152	assert(is_loaded(), "must be loaded");
duke@435	153	return _nonstatic_field_size; }
coleenp@548	154	jint has_nonstatic_fields() {
coleenp@548	155	assert(is_loaded(), "must be loaded");
coleenp@548	156	return _has_nonstatic_fields; }
kvn@479	157	jint nonstatic_oop_map_size() {
kvn@479	158	assert(is_loaded(), "must be loaded");
kvn@479	159	return _nonstatic_oop_map_size; }
duke@435	160	ciInstanceKlass* super();
duke@435	161	jint nof_implementors() {
duke@435	162	assert(is_loaded(), "must be loaded");
duke@435	163	if (_is_shared) return compute_shared_nof_implementors();
duke@435	164	return _nof_implementors;
duke@435	165	}
duke@435	166
duke@435	167	ciInstanceKlass* get_canonical_holder(int offset);
duke@435	168	ciField* get_field_by_offset(int field_offset, bool is_static);
never@1515	169	ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static);
kvn@479	170
kvn@479	171	GrowableArray<ciField*>* non_static_fields();
kvn@479	172
duke@435	173	// total number of nonstatic fields (including inherited):
duke@435	174	int nof_nonstatic_fields() {
duke@435	175	if (_nonstatic_fields == NULL)
duke@435	176	return compute_nonstatic_fields();
duke@435	177	else
duke@435	178	return _nonstatic_fields->length();
duke@435	179	}
duke@435	180	// nth nonstatic field (presented by ascending address)
duke@435	181	ciField* nonstatic_field_at(int i) {
duke@435	182	assert(_nonstatic_fields != NULL, "");
duke@435	183	return _nonstatic_fields->at(i);
duke@435	184	}
duke@435	185
duke@435	186	ciInstanceKlass* unique_concrete_subklass();
duke@435	187	bool has_finalizable_subclass();
duke@435	188
duke@435	189	bool contains_field_offset(int offset) {
coleenp@548	190	return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size());
duke@435	191	}
duke@435	192
duke@435	193	// Get the instance of java.lang.Class corresponding to
duke@435	194	// this klass. This instance is used for locking of
duke@435	195	// synchronized static methods of this klass.
duke@435	196	ciInstance* java_mirror();
duke@435	197
duke@435	198	// Java access flags
duke@435	199	bool is_public () { return flags().is_public(); }
duke@435	200	bool is_final () { return flags().is_final(); }
duke@435	201	bool is_super () { return flags().is_super(); }
duke@435	202	bool is_interface () { return flags().is_interface(); }
duke@435	203	bool is_abstract () { return flags().is_abstract(); }
duke@435	204
duke@435	205	ciMethod* find_method(ciSymbol* name, ciSymbol* signature);
duke@435	206	// Note: To find a method from name and type strings, use ciSymbol::make,
duke@435	207	// but consider adding to vmSymbols.hpp instead.
duke@435	208
duke@435	209	bool is_leaf_type();
duke@435	210	ciInstanceKlass* implementor(int n);
duke@435	211
duke@435	212	// Is the defining class loader of this class the default loader?
duke@435	213	bool uses_default_loader();
duke@435	214
duke@435	215	bool is_java_lang_Object();
duke@435	216
twisti@1573	217	// Is this klass in the given package?
twisti@1573	218	bool is_in_package(const char* packagename) {
twisti@1573	219	return is_in_package(packagename, (int) strlen(packagename));
twisti@1573	220	}
twisti@1573	221	bool is_in_package(const char* packagename, int len);
twisti@1573	222
duke@435	223	// What kind of ciObject is this?
duke@435	224	bool is_instance_klass() { return true; }
duke@435	225	bool is_java_klass() { return true; }
duke@435	226	};
stefank@2314	227
stefank@2314	228	#endif // SHARE_VM_CI_CIINSTANCEKLASS_HPP