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comparison src/share/vm/oops/constantPoolKlass.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 /*
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 // A constantPoolKlass is the klass of a constantPoolOop
26
27 class constantPoolKlass : public arrayKlass {
28 public:
29 // Dispatched klass operations
30 bool oop_is_constantPool() const { return true; }
31 int oop_size(oop obj) const;
32 int klass_oop_size() const { return object_size(); }
33
34 // Allocation
35 DEFINE_ALLOCATE_PERMANENT(constantPoolKlass);
36 constantPoolOop allocate(int length, TRAPS);
37 static klassOop create_klass(TRAPS);
38
39 // Casting from klassOop
40 static constantPoolKlass* cast(klassOop k) {
41 assert(k->klass_part()->oop_is_constantPool(), "cast to constantPoolKlass");
42 return (constantPoolKlass*) k->klass_part();
43 }
44
45 // Sizing
46 static int header_size() { return oopDesc::header_size() + sizeof(constantPoolKlass)/HeapWordSize; }
47 int object_size() const { return arrayKlass::object_size(header_size()); }
48
49 // Garbage collection
50 void oop_follow_contents(oop obj);
51 int oop_adjust_pointers(oop obj);
52
53 // Parallel Scavenge and Parallel Old
54 PARALLEL_GC_DECLS
55
56 // Iterators
57 int oop_oop_iterate(oop obj, OopClosure* blk);
58 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
59
60 #ifndef PRODUCT
61 public:
62 // Printing
63 void oop_print_on(oop obj, outputStream* st);
64 #endif
65
66 public:
67 // Verification
68 const char* internal_name() const;
69 void oop_verify_on(oop obj, outputStream* st);
70 // tells whether obj is partially constructed (gc during class loading)
71 bool oop_partially_loaded(oop obj) const;
72 void oop_set_partially_loaded(oop obj);
73 #ifndef PRODUCT
74 // Compile the world support
75 static void preload_and_initialize_all_classes(oop constant_pool, TRAPS);
76 #endif
77 };