Mercurial > hg > truffle
annotate src/share/vm/oops/klassKlass.hpp @ 2831:f072013daba9
Added lookup method.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Tue, 31 May 2011 11:32:48 +0200 |
parents | f95d63e2154a |
children | dddcdb7ae209 |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OOPS_KLASSKLASS_HPP |
26 #define SHARE_VM_OOPS_KLASSKLASS_HPP | |
27 | |
28 #include "memory/oopFactory.hpp" | |
29 #include "oops/klass.hpp" | |
30 #include "oops/klassOop.hpp" | |
31 | |
0 | 32 // A klassKlass serves as the fix point of the klass chain. |
33 // The klass of klassKlass is itself. | |
34 | |
35 class klassKlass: public Klass { | |
36 friend class VMStructs; | |
37 private: | |
38 juint _alloc_size; // allocation profiling support | |
39 public: | |
40 // Testing | |
41 bool oop_is_klass() const { return true; } | |
42 bool is_leaf_class() const { return true; } | |
43 | |
44 // Sizing | |
45 int oop_size(oop obj) const; | |
46 int klass_oop_size() const { return object_size(); } | |
47 | |
48 // Allocation | |
49 DEFINE_ALLOCATE_PERMANENT(klassKlass); | |
50 static klassOop create_klass(TRAPS ); | |
51 | |
52 // Casting from klassOop | |
53 static klassKlass* cast(klassOop k) { | |
54 assert(k->klass_part()->oop_is_klass(), "cast to klassKlass"); | |
55 return (klassKlass*) k->klass_part(); | |
56 } | |
57 | |
58 // Sizing | |
59 static int header_size() { return oopDesc::header_size() + sizeof(klassKlass)/HeapWordSize; } | |
60 int object_size() const { return align_object_size(header_size()); } | |
61 | |
62 // Garbage collection | |
63 void oop_follow_contents(oop obj); | |
64 int oop_adjust_pointers(oop obj); | |
65 | |
66 // Parallel Scavenge and Parallel Old | |
67 PARALLEL_GC_DECLS | |
68 | |
69 // Iterators | |
70 int oop_oop_iterate(oop obj, OopClosure* blk); | |
71 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); | |
72 | |
73 // Allocation profiling support | |
74 juint alloc_size() const { return _alloc_size; } | |
75 void set_alloc_size(juint n) { _alloc_size = n; } | |
76 | |
77 // Printing | |
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78 void oop_print_value_on(oop obj, outputStream* st); |
0 | 79 void oop_print_on (oop obj, outputStream* st); |
80 | |
81 // Verification | |
82 const char* internal_name() const; | |
83 void oop_verify_on(oop obj, outputStream* st); | |
84 }; | |
1972 | 85 |
86 #endif // SHARE_VM_OOPS_KLASSKLASS_HPP |