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

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1997-2006 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 // An instanceKlassKlass is the klass of an instanceKlass
26
27 class instanceKlassKlass : public klassKlass {
28 public:
29 // Dispatched operation
30 bool oop_is_klass() const { return true; }
31 bool oop_is_instanceKlass() const { return true; }
32
33 int oop_size(oop obj) const;
34 int klass_oop_size() const { return object_size(); }
35
36 // Allocation
37 DEFINE_ALLOCATE_PERMANENT(instanceKlassKlass);
38 static klassOop create_klass(TRAPS);
39 klassOop allocate_instance_klass(int vtable_len,
40 int itable_len,
41 int static_field_size,
42 int nonstatic_oop_map_size,
43 ReferenceType rt,
44 TRAPS);
45
46 // Casting from klassOop
47 static instanceKlassKlass* cast(klassOop k) {
48 assert(k->klass_part()->oop_is_klass(), "cast to instanceKlassKlass");
49 return (instanceKlassKlass*) k->klass_part();
50 }
51
52 // Sizing
53 static int header_size() { return oopDesc::header_size() + sizeof(instanceKlassKlass)/HeapWordSize; }
54 int object_size() const { return align_object_size(header_size()); }
55
56 // Garbage collection
57 void oop_follow_contents(oop obj);
58 int oop_adjust_pointers(oop obj);
59 bool oop_is_parsable(oop obj) const;
60
61 // Parallel Scavenge and Parallel Old
62 PARALLEL_GC_DECLS
63
64 // Iterators
65 int oop_oop_iterate(oop obj, OopClosure* blk);
66 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
67
68 private:
69 // Apply closure to the InstanceKlass oops that are outside the java heap.
70 inline void iterate_c_heap_oops(instanceKlass* ik, OopClosure* closure);
71
72 #ifndef PRODUCT
73 public:
74 // Printing
75 void oop_print_on(oop obj, outputStream* st);
76 void oop_print_value_on(oop obj, outputStream* st);
77 #endif
78
79 public:
80 // Verification
81 const char* internal_name() const;
82 void oop_verify_on(oop obj, outputStream* st);
83 // tells whether obj is partially constructed (gc during class loading)
84 bool oop_partially_loaded(oop obj) const;
85 void oop_set_partially_loaded(oop obj);
86 };