1 /* 2 * Copyright (c) 1997, 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 methodKlass is the klass of a methodOop 26 27 class methodKlass : public Klass { 28 friend class VMStructs; 29 private: 30 juint _alloc_size; // allocation profiling support 31 public: 32 // Testing 33 bool oop_is_method() const { return true; } 34 35 // Allocation 36 DEFINE_ALLOCATE_PERMANENT(methodKlass); 37 methodOop allocate(constMethodHandle xconst, AccessFlags access_flags, 38 TRAPS); 39 static klassOop create_klass(TRAPS); 40 41 // Sizing 42 int oop_size(oop obj) const; 43 int klass_oop_size() const { return object_size(); } 44 45 // Casting from klassOop 46 static methodKlass* cast(klassOop k) { 47 assert(k->klass_part()->oop_is_method(), "cast to methodKlass"); 48 return (methodKlass*) k->klass_part(); 49 } 50 51 // Sizing 52 static int header_size() { return oopDesc::header_size() + sizeof(methodKlass)/HeapWordSize; } 53 int object_size() const { return align_object_size(header_size()); } 54 55 // Garbage collection 56 void oop_follow_contents(oop obj); 57 int oop_adjust_pointers(oop obj); 58 bool oop_is_parsable(oop obj) const; 59 60 // Parallel Scavenge and Parallel Old 61 PARALLEL_GC_DECLS 62 63 // Allocation profiling support 64 juint alloc_size() const { return _alloc_size; } 65 void set_alloc_size(juint n) { _alloc_size = n; } 66 67 // Iterators 68 int oop_oop_iterate(oop obj, OopClosure* blk); 69 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); 70 71 public: 72 // Printing 73 void oop_print_value_on(oop obj, outputStream* st); 74 #ifndef PRODUCT 75 void oop_print_on (oop obj, outputStream* st); 76 #endif //PRODUCT 77 78 // Verify operations 79 const char* internal_name() const; 80 void oop_verify_on(oop obj, outputStream* st); 81 bool oop_partially_loaded(oop obj) const; 82 void oop_set_partially_loaded(oop obj); 83 };