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src/hotspot/share/oops/klassVtable.hpp

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277 //
278 class klassItable {
279  private:
280   InstanceKlass*       _klass;             // my klass
281   int                  _table_offset;      // offset of start of itable data within klass (in words)
282   int                  _size_offset_table; // size of offset table (in itableOffset entries)
283   int                  _size_method_table; // size of methodtable (in itableMethodEntry entries)
284 
285   void initialize_itable_for_interface(int method_table_offset, InstanceKlass* interf_h,
286                                        GrowableArray<Method*>* supers, int start_offset);
287   void check_constraints(GrowableArray<Method*>* supers, TRAPS);
288  public:
289   klassItable(InstanceKlass* klass);
290 
291   itableOffsetEntry* offset_entry(int i) { assert(0 <= i && i <= _size_offset_table, "index out of bounds");
292                                            return &((itableOffsetEntry*)vtable_start())[i]; }
293 
294   itableMethodEntry* method_entry(int i) { assert(0 <= i && i <= _size_method_table, "index out of bounds");
295                                            return &((itableMethodEntry*)method_start())[i]; }
296 
297   int size_offset_table()                { return _size_offset_table; }



298 
299   // Initialization
300   void initialize_itable_and_check_constraints(TRAPS);
301   void initialize_itable(GrowableArray<Method*>* supers = NULL);
302 
303 #if INCLUDE_JVMTI
304   // RedefineClasses() API support:
305   // if any entry of this itable points to any of old_methods,
306   // replace it with the corresponding new_method.
307   // trace_name_printed is set to true if the current call has
308   // printed the klass name so that other routines in the adjust_*
309   // group don't print the klass name.
310   void adjust_method_entries(bool* trace_name_printed);
311   bool check_no_old_or_obsolete_entries();
312   void dump_itable();
313 #endif // INCLUDE_JVMTI
314 
315   // Setup of itable
316   static int assign_itable_indices_for_interface(InstanceKlass* klass);
317   static int method_count_for_interface(InstanceKlass* klass);

277 //
278 class klassItable {
279  private:
280   InstanceKlass*       _klass;             // my klass
281   int                  _table_offset;      // offset of start of itable data within klass (in words)
282   int                  _size_offset_table; // size of offset table (in itableOffset entries)
283   int                  _size_method_table; // size of methodtable (in itableMethodEntry entries)
284 
285   void initialize_itable_for_interface(int method_table_offset, InstanceKlass* interf_h,
286                                        GrowableArray<Method*>* supers, int start_offset);
287   void check_constraints(GrowableArray<Method*>* supers, TRAPS);
288  public:
289   klassItable(InstanceKlass* klass);
290 
291   itableOffsetEntry* offset_entry(int i) { assert(0 <= i && i <= _size_offset_table, "index out of bounds");
292                                            return &((itableOffsetEntry*)vtable_start())[i]; }
293 
294   itableMethodEntry* method_entry(int i) { assert(0 <= i && i <= _size_method_table, "index out of bounds");
295                                            return &((itableMethodEntry*)method_start())[i]; }
296 
297   InstanceKlass* klass() const          { return _klass; }
298   int table_offset() const              { return _table_offset; }
299   int size_offset_table() const         { return _size_offset_table; }
300   int size_method_table() const         { return _size_method_table; }
301 
302   // Initialization
303   void initialize_itable_and_check_constraints(TRAPS);
304   void initialize_itable(GrowableArray<Method*>* supers = NULL);
305 
306 #if INCLUDE_JVMTI
307   // RedefineClasses() API support:
308   // if any entry of this itable points to any of old_methods,
309   // replace it with the corresponding new_method.
310   // trace_name_printed is set to true if the current call has
311   // printed the klass name so that other routines in the adjust_*
312   // group don't print the klass name.
313   void adjust_method_entries(bool* trace_name_printed);
314   bool check_no_old_or_obsolete_entries();
315   void dump_itable();
316 #endif // INCLUDE_JVMTI
317 
318   // Setup of itable
319   static int assign_itable_indices_for_interface(InstanceKlass* klass);
320   static int method_count_for_interface(InstanceKlass* klass);
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