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comparison src/share/vm/oops/klass.hpp @ 20375:6e0cb14ce59b

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8046070: Class Data Sharing clean up and refactoring Summary: Cleaned up CDS to be more configurable, maintainable and extensible Reviewed-by: dholmes, coleenp, acorn, mchung
author iklam
date Thu, 21 Aug 2014 13:57:51 -0700
parents 2c6ef90f030a
children 8cb56c8cb30d
comparison
equal deleted inserted replaced
20374:999824269b71 20375:6e0cb14ce59b
173 173
174 // Remembered sets support for the oops in the klasses. 174 // Remembered sets support for the oops in the klasses.
175 jbyte _modified_oops; // Card Table Equivalent (YC/CMS support) 175 jbyte _modified_oops; // Card Table Equivalent (YC/CMS support)
176 jbyte _accumulated_modified_oops; // Mod Union Equivalent (CMS support) 176 jbyte _accumulated_modified_oops; // Mod Union Equivalent (CMS support)
177 177
178 private:
179 // This is an index into FileMapHeader::_classpath_entry_table[], to
180 // associate this class with the JAR file where it's loaded from during
181 // dump time. If a class is not loaded from the shared archive, this field is
182 // -1.
183 jshort _shared_class_path_index;
184
185 friend class SharedClassUtil;
186 protected:
187
178 // Constructor 188 // Constructor
179 Klass(); 189 Klass();
180 190
181 void* operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, TRAPS) throw(); 191 void* operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, TRAPS) throw();
182 192
278 bool has_modified_oops() { return _modified_oops == 1; } 288 bool has_modified_oops() { return _modified_oops == 1; }
279 289
280 void accumulate_modified_oops() { if (has_modified_oops()) _accumulated_modified_oops = 1; } 290 void accumulate_modified_oops() { if (has_modified_oops()) _accumulated_modified_oops = 1; }
281 void clear_accumulated_modified_oops() { _accumulated_modified_oops = 0; } 291 void clear_accumulated_modified_oops() { _accumulated_modified_oops = 0; }
282 bool has_accumulated_modified_oops() { return _accumulated_modified_oops == 1; } 292 bool has_accumulated_modified_oops() { return _accumulated_modified_oops == 1; }
293
294 int shared_classpath_index() const {
295 return _shared_class_path_index;
296 };
297
298 void set_shared_classpath_index(int index) {
299 _shared_class_path_index = index;
300 };
301
283 302
284 protected: // internal accessors 303 protected: // internal accessors
285 Klass* subklass_oop() const { return _subklass; } 304 Klass* subklass_oop() const { return _subklass; }
286 Klass* next_sibling_oop() const { return _next_sibling; } 305 Klass* next_sibling_oop() const { return _next_sibling; }
287 void set_subklass(Klass* s); 306 void set_subklass(Klass* s);
450 virtual Klass* array_klass_impl(bool or_null, TRAPS); 469 virtual Klass* array_klass_impl(bool or_null, TRAPS);
451 470
452 public: 471 public:
453 // CDS support - remove and restore oops from metadata. Oops are not shared. 472 // CDS support - remove and restore oops from metadata. Oops are not shared.
454 virtual void remove_unshareable_info(); 473 virtual void remove_unshareable_info();
455 virtual void restore_unshareable_info(TRAPS); 474 virtual void restore_unshareable_info(ClassLoaderData* loader_data, Handle protection_domain, TRAPS);
456 475
457 protected: 476 protected:
458 // computes the subtype relationship 477 // computes the subtype relationship
459 virtual bool compute_is_subtype_of(Klass* k); 478 virtual bool compute_is_subtype_of(Klass* k);
460 public: 479 public: