comparison src/share/vm/oops/methodDataKlass.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children 4e6abf09f540
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1 /*
2 * Copyright 2000-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any 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 #ifndef PRODUCT
75 public:
76 // Printing
77 void oop_print_on (oop obj, outputStream* st);
78 void oop_print_value_on(oop obj, outputStream* st);
79 #endif // !PRODUCT
80
81 public:
82 // Verify operations
83 const char* internal_name() const;
84 void oop_verify_on(oop obj, outputStream* st);
85 };