Mercurial > hg > truffle
annotate src/share/vm/oops/methodDataKlass.hpp @ 5274:e72dd6533eb9
documented importance of nmethod::_graal_compiled_method wrt code unloading and GC
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 23 Apr 2012 15:42:30 +0200 |
parents | f95d63e2154a |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2000, 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_METHODDATAKLASS_HPP |
26 #define SHARE_VM_OOPS_METHODDATAKLASS_HPP | |
27 | |
28 #include "oops/klass.hpp" | |
29 | |
0 | 30 // a methodDataKlass is the klass of a methodDataOop |
31 | |
32 class methodDataKlass : public Klass { | |
33 friend class VMStructs; | |
34 private: | |
35 juint _alloc_size; // allocation profiling support | |
36 public: | |
37 // Testing | |
38 bool oop_is_methodData() const { return true; } | |
39 | |
40 // Allocation | |
41 DEFINE_ALLOCATE_PERMANENT(methodDataKlass); | |
42 methodDataOop allocate(methodHandle method, TRAPS); | |
43 static klassOop create_klass(TRAPS); | |
44 | |
45 // Sizing | |
46 int oop_size(oop obj) const; | |
47 int klass_oop_size() const { return object_size(); } | |
48 | |
49 // Casting from klassOop | |
50 static methodDataKlass* cast(klassOop k) { | |
51 assert(k->klass_part()->oop_is_methodData(), "cast to methodDataKlass"); | |
52 return (methodDataKlass*) k->klass_part(); | |
53 } | |
54 | |
55 // Sizing | |
56 static int header_size() { | |
57 return oopDesc::header_size() + sizeof(methodDataKlass)/wordSize; | |
58 } | |
59 int object_size() const { | |
60 return align_object_size(header_size()); | |
61 } | |
62 | |
63 // Garbage collection | |
64 void oop_follow_contents(oop obj); | |
65 int oop_adjust_pointers(oop obj); | |
66 bool oop_is_parsable(oop obj) const; | |
67 | |
68 // Parallel Scavenge and Parallel Old | |
69 PARALLEL_GC_DECLS | |
70 | |
71 // Allocation profiling support | |
72 juint alloc_size() const { return _alloc_size; } | |
73 void set_alloc_size(juint n) { _alloc_size = n; } | |
74 | |
75 // Iterators | |
76 int oop_oop_iterate(oop obj, OopClosure* blk); | |
77 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); | |
78 | |
79 public: | |
80 // Printing | |
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81 void oop_print_value_on(oop obj, outputStream* st); |
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82 #ifndef PRODUCT |
0 | 83 void oop_print_on (oop obj, outputStream* st); |
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84 #endif //PRODUCT |
0 | 85 |
86 // Verify operations | |
87 const char* internal_name() const; | |
88 void oop_verify_on(oop obj, outputStream* st); | |
89 }; | |
1972 | 90 |
91 #endif // SHARE_VM_OOPS_METHODDATAKLASS_HPP |