1 /* 2 * Copyright (c) 2003, 2009, 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 constMethodKlass is the klass of a constMethodOop 26 27 class constMethodKlass : public Klass { 28 friend class VMStructs; 29 private: 30 juint _alloc_size; // allocation profiling support 31 public: 32 // Testing 33 bool oop_is_constMethod() const { return true; } 34 virtual bool oop_is_parsable(oop obj) const; 35 virtual bool oop_is_conc_safe(oop obj) const; 36 37 38 // Allocation 39 DEFINE_ALLOCATE_PERMANENT(constMethodKlass); 40 constMethodOop allocate(int byte_code_size, int compressed_line_number_size, 41 int localvariable_table_length, 42 int checked_exceptions_length, 43 bool is_conc_safe, 44 TRAPS); 45 static klassOop create_klass(TRAPS); 46 47 // Sizing 48 int oop_size(oop obj) const; 49 int klass_oop_size() const { return object_size(); } 50 51 // Casting from klassOop 52 static constMethodKlass* cast(klassOop k) { 53 assert(k->klass_part()->oop_is_constMethod(), "cast to constMethodKlass"); 54 return (constMethodKlass*) k->klass_part(); 55 } 56 57 // Sizing 58 static int header_size() { 59 return oopDesc::header_size() + sizeof(constMethodKlass)/HeapWordSize; 60 } 61 int object_size() const { 62 return align_object_size(header_size()); 63 } 64 65 // Garbage collection 66 void oop_follow_contents(oop obj); 67 int oop_adjust_pointers(oop obj); 68 69 // Parallel Scavenge and Parallel Old 70 PARALLEL_GC_DECLS 71 72 // Allocation profiling support 73 juint alloc_size() const { return _alloc_size; } 74 void set_alloc_size(juint n) { _alloc_size = n; } 75 76 // Iterators 77 int oop_oop_iterate(oop obj, OopClosure* blk); 78 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); 79 80 // Printing 81 void oop_print_value_on(oop obj, outputStream* st); 82 void oop_print_on (oop obj, outputStream* st); 83 84 // Verify operations 85 const char* internal_name() const; 86 void oop_verify_on(oop obj, outputStream* st); 87 bool oop_partially_loaded(oop obj) const; 88 void oop_set_partially_loaded(oop obj); 89 };