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annotate src/share/vm/ci/ciInstanceKlass.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | 3941674cc7fa |
| children | 06f017f7daa7 49036505ab5f |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CI_CIINSTANCEKLASS_HPP |
| 26 #define SHARE_VM_CI_CIINSTANCEKLASS_HPP | |
| 27 | |
| 28 #include "ci/ciConstantPoolCache.hpp" | |
| 29 #include "ci/ciFlags.hpp" | |
| 30 #include "ci/ciInstanceKlassKlass.hpp" | |
| 31 #include "ci/ciKlass.hpp" | |
| 32 #include "ci/ciSymbol.hpp" | |
| 33 | |
| 0 | 34 // ciInstanceKlass |
| 35 // | |
| 36 // This class represents a klassOop in the HotSpot virtual machine | |
| 37 // whose Klass part is an instanceKlass. It may or may not | |
| 38 // be loaded. | |
| 39 class ciInstanceKlass : public ciKlass { | |
| 40 CI_PACKAGE_ACCESS | |
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41 friend class ciBytecodeStream; |
| 0 | 42 friend class ciEnv; |
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43 friend class ciExceptionHandler; |
| 0 | 44 friend class ciMethod; |
| 45 friend class ciField; | |
| 46 | |
| 47 private: | |
| 48 jobject _loader; | |
| 49 jobject _protection_domain; | |
| 50 | |
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51 instanceKlass::ClassState _init_state; // state of class |
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52 bool _is_shared; |
| 0 | 53 bool _has_finalizer; |
| 54 bool _has_subklass; | |
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55 bool _has_nonstatic_fields; |
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56 |
| 0 | 57 ciFlags _flags; |
| 58 jint _nonstatic_field_size; | |
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59 jint _nonstatic_oop_map_size; |
| 0 | 60 |
| 61 // Lazy fields get filled in only upon request. | |
| 62 ciInstanceKlass* _super; | |
| 63 ciInstance* _java_mirror; | |
| 64 | |
| 65 ciConstantPoolCache* _field_cache; // cached map index->field | |
| 66 GrowableArray<ciField*>* _nonstatic_fields; | |
| 67 | |
| 68 enum { implementors_limit = instanceKlass::implementors_limit }; | |
| 69 ciInstanceKlass* _implementors[implementors_limit]; | |
| 70 jint _nof_implementors; | |
| 71 | |
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72 GrowableArray<ciField*>* _non_static_fields; |
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73 |
| 0 | 74 protected: |
| 75 ciInstanceKlass(KlassHandle h_k); | |
| 76 ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain); | |
| 77 | |
| 78 instanceKlass* get_instanceKlass() const { | |
| 79 return (instanceKlass*)get_Klass(); | |
| 80 } | |
| 81 | |
| 82 oop loader(); | |
| 83 jobject loader_handle(); | |
| 84 | |
| 85 oop protection_domain(); | |
| 86 jobject protection_domain_handle(); | |
| 87 | |
| 88 const char* type_string() { return "ciInstanceKlass"; } | |
| 89 | |
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90 bool is_in_package_impl(const char* packagename, int len); |
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91 |
| 0 | 92 void print_impl(outputStream* st); |
| 93 | |
| 94 ciConstantPoolCache* field_cache(); | |
| 95 | |
| 96 bool is_shared() { return _is_shared; } | |
| 97 | |
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98 void compute_shared_init_state(); |
| 0 | 99 bool compute_shared_has_subklass(); |
| 100 int compute_shared_nof_implementors(); | |
| 101 int compute_nonstatic_fields(); | |
| 102 GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields); | |
| 103 | |
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104 // Update the init_state for shared klasses |
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105 void update_if_shared(instanceKlass::ClassState expected) { |
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106 if (_is_shared && _init_state != expected) { |
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107 if (is_loaded()) compute_shared_init_state(); |
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108 } |
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109 } |
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110 |
| 0 | 111 public: |
| 112 // Has this klass been initialized? | |
| 113 bool is_initialized() { | |
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114 update_if_shared(instanceKlass::fully_initialized); |
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115 return _init_state == instanceKlass::fully_initialized; |
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116 } |
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117 // Is this klass being initialized? |
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118 bool is_being_initialized() { |
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119 update_if_shared(instanceKlass::being_initialized); |
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120 return _init_state == instanceKlass::being_initialized; |
| 0 | 121 } |
| 122 // Has this klass been linked? | |
| 123 bool is_linked() { | |
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124 update_if_shared(instanceKlass::linked); |
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125 return _init_state >= instanceKlass::linked; |
| 0 | 126 } |
| 127 | |
| 128 // General klass information. | |
| 129 ciFlags flags() { | |
| 130 assert(is_loaded(), "must be loaded"); | |
| 131 return _flags; | |
| 132 } | |
| 133 bool has_finalizer() { | |
| 134 assert(is_loaded(), "must be loaded"); | |
| 135 return _has_finalizer; } | |
| 136 bool has_subklass() { | |
| 137 assert(is_loaded(), "must be loaded"); | |
| 138 if (_is_shared && !_has_subklass) { | |
| 139 if (flags().is_final()) { | |
| 140 return false; | |
| 141 } else { | |
| 142 return compute_shared_has_subklass(); | |
| 143 } | |
| 144 } | |
| 145 return _has_subklass; | |
| 146 } | |
| 147 jint size_helper() { | |
| 148 return (Klass::layout_helper_size_in_bytes(layout_helper()) | |
| 149 >> LogHeapWordSize); | |
| 150 } | |
| 151 jint nonstatic_field_size() { | |
| 152 assert(is_loaded(), "must be loaded"); | |
| 153 return _nonstatic_field_size; } | |
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154 jint has_nonstatic_fields() { |
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155 assert(is_loaded(), "must be loaded"); |
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156 return _has_nonstatic_fields; } |
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157 jint nonstatic_oop_map_size() { |
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158 assert(is_loaded(), "must be loaded"); |
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159 return _nonstatic_oop_map_size; } |
| 0 | 160 ciInstanceKlass* super(); |
| 161 jint nof_implementors() { | |
| 162 assert(is_loaded(), "must be loaded"); | |
| 163 if (_is_shared) return compute_shared_nof_implementors(); | |
| 164 return _nof_implementors; | |
| 165 } | |
| 166 | |
| 167 ciInstanceKlass* get_canonical_holder(int offset); | |
| 168 ciField* get_field_by_offset(int field_offset, bool is_static); | |
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169 ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static); |
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170 |
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171 GrowableArray<ciField*>* non_static_fields(); |
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172 |
| 0 | 173 // total number of nonstatic fields (including inherited): |
| 174 int nof_nonstatic_fields() { | |
| 175 if (_nonstatic_fields == NULL) | |
| 176 return compute_nonstatic_fields(); | |
| 177 else | |
| 178 return _nonstatic_fields->length(); | |
| 179 } | |
| 180 // nth nonstatic field (presented by ascending address) | |
| 181 ciField* nonstatic_field_at(int i) { | |
| 182 assert(_nonstatic_fields != NULL, ""); | |
| 183 return _nonstatic_fields->at(i); | |
| 184 } | |
| 185 | |
| 186 ciInstanceKlass* unique_concrete_subklass(); | |
| 187 bool has_finalizable_subclass(); | |
| 188 | |
| 189 bool contains_field_offset(int offset) { | |
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190 return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size()); |
| 0 | 191 } |
| 192 | |
| 193 // Get the instance of java.lang.Class corresponding to | |
| 194 // this klass. This instance is used for locking of | |
| 195 // synchronized static methods of this klass. | |
| 196 ciInstance* java_mirror(); | |
| 197 | |
| 198 // Java access flags | |
| 199 bool is_public () { return flags().is_public(); } | |
| 200 bool is_final () { return flags().is_final(); } | |
| 201 bool is_super () { return flags().is_super(); } | |
| 202 bool is_interface () { return flags().is_interface(); } | |
| 203 bool is_abstract () { return flags().is_abstract(); } | |
| 204 | |
| 205 ciMethod* find_method(ciSymbol* name, ciSymbol* signature); | |
| 206 // Note: To find a method from name and type strings, use ciSymbol::make, | |
| 207 // but consider adding to vmSymbols.hpp instead. | |
| 208 | |
| 209 bool is_leaf_type(); | |
| 210 ciInstanceKlass* implementor(int n); | |
| 211 | |
| 212 // Is the defining class loader of this class the default loader? | |
| 213 bool uses_default_loader(); | |
| 214 | |
| 215 bool is_java_lang_Object(); | |
| 216 | |
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217 // Is this klass in the given package? |
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218 bool is_in_package(const char* packagename) { |
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219 return is_in_package(packagename, (int) strlen(packagename)); |
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220 } |
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221 bool is_in_package(const char* packagename, int len); |
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222 |
| 0 | 223 // What kind of ciObject is this? |
| 224 bool is_instance_klass() { return true; } | |
| 225 bool is_java_klass() { return true; } | |
| 226 }; | |
| 1972 | 227 |
| 228 #endif // SHARE_VM_CI_CIINSTANCEKLASS_HPP |