Mercurial > hg > truffle
annotate src/share/vm/oops/instanceKlassKlass.hpp @ 2066:02895c6a2f82
7007769: VM crashes with SIGBUS writing PerfData if tmp space is full
Summary: Fill perfdata file with zeros to verify available disk space
Reviewed-by: coleenp, kamg
author | bobv |
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date | Mon, 20 Dec 2010 14:30:24 -0500 |
parents | f95d63e2154a |
children | c7f3d0b4570f |
rev | line source |
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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_INSTANCEKLASSKLASS_HPP |
26 #define SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP | |
27 | |
28 #include "oops/klassKlass.hpp" | |
29 | |
0 | 30 // An instanceKlassKlass is the klass of an instanceKlass |
31 | |
32 class instanceKlassKlass : public klassKlass { | |
33 public: | |
34 // Dispatched operation | |
35 bool oop_is_klass() const { return true; } | |
36 bool oop_is_instanceKlass() const { return true; } | |
37 | |
38 int oop_size(oop obj) const; | |
39 int klass_oop_size() const { return object_size(); } | |
40 | |
41 // Allocation | |
42 DEFINE_ALLOCATE_PERMANENT(instanceKlassKlass); | |
43 static klassOop create_klass(TRAPS); | |
44 klassOop allocate_instance_klass(int vtable_len, | |
45 int itable_len, | |
46 int static_field_size, | |
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47 unsigned int nonstatic_oop_map_count, |
0 | 48 ReferenceType rt, |
49 TRAPS); | |
50 | |
51 // Casting from klassOop | |
52 static instanceKlassKlass* cast(klassOop k) { | |
53 assert(k->klass_part()->oop_is_klass(), "cast to instanceKlassKlass"); | |
54 return (instanceKlassKlass*) k->klass_part(); | |
55 } | |
56 | |
57 // Sizing | |
58 static int header_size() { return oopDesc::header_size() + sizeof(instanceKlassKlass)/HeapWordSize; } | |
59 int object_size() const { return align_object_size(header_size()); } | |
60 | |
61 // Garbage collection | |
62 void oop_follow_contents(oop obj); | |
63 int oop_adjust_pointers(oop obj); | |
64 bool oop_is_parsable(oop obj) const; | |
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 private: | |
74 // Apply closure to the InstanceKlass oops that are outside the java heap. | |
75 inline void iterate_c_heap_oops(instanceKlass* ik, OopClosure* closure); | |
76 | |
77 public: | |
78 // Printing | |
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79 void oop_print_value_on(oop obj, outputStream* st); |
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80 #ifndef PRODUCT |
0 | 81 void oop_print_on(oop obj, outputStream* st); |
82 #endif | |
83 | |
84 // Verification | |
85 const char* internal_name() const; | |
86 void oop_verify_on(oop obj, outputStream* st); | |
87 // tells whether obj is partially constructed (gc during class loading) | |
88 bool oop_partially_loaded(oop obj) const; | |
89 void oop_set_partially_loaded(oop obj); | |
90 }; | |
1972 | 91 |
92 #endif // SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP |