1 /* 2 * Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 // a methodDataKlass is the klass of a methodDataOop 26 27 class methodDataKlass : public Klass { 28 friend class VMStructs; 29 private: 30 juint _alloc_size; // allocation profiling support 31 public: 32 // Testing 33 bool oop_is_methodData() const { return true; } 34 35 // Allocation 36 DEFINE_ALLOCATE_PERMANENT(methodDataKlass); 37 methodDataOop allocate(methodHandle method, TRAPS); 38 static klassOop create_klass(TRAPS); 39 40 // Sizing 41 int oop_size(oop obj) const; 42 int klass_oop_size() const { return object_size(); } 43 44 // Casting from klassOop 45 static methodDataKlass* cast(klassOop k) { 46 assert(k->klass_part()->oop_is_methodData(), "cast to methodDataKlass"); 47 return (methodDataKlass*) k->klass_part(); 48 } 49 50 // Sizing 51 static int header_size() { 52 return oopDesc::header_size() + sizeof(methodDataKlass)/wordSize; 53 } 54 int object_size() const { 55 return align_object_size(header_size()); 56 } 57 58 // Garbage collection 59 void oop_follow_contents(oop obj); 60 int oop_adjust_pointers(oop obj); 61 bool oop_is_parsable(oop obj) const; 62 63 // Parallel Scavenge and Parallel Old 64 PARALLEL_GC_DECLS 65 66 // Allocation profiling support 67 juint alloc_size() const { return _alloc_size; } 68 void set_alloc_size(juint n) { _alloc_size = n; } 69 70 // Iterators 71 int oop_oop_iterate(oop obj, OopClosure* blk); 72 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); 73 74 public: 75 // Printing 76 void oop_print_value_on(oop obj, outputStream* st); 77 #ifndef PRODUCT 78 void oop_print_on (oop obj, outputStream* st); 79 #endif //PRODUCT 80 81 // Verify operations 82 const char* internal_name() const; 83 void oop_verify_on(oop obj, outputStream* st); 84 };