Mercurial > hg > truffle
annotate src/share/vm/ci/ciObjectFactory.hpp @ 8071:bbc7936779f9
8006398: Add regression tests for deprectated GCs
Reviewed-by: ehelin, jwilhelm, jmasa
author | brutisso |
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date | Thu, 14 Feb 2013 09:11:43 +0100 |
parents | bd7a7ce2e264 |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2012, 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_CI_CIOBJECTFACTORY_HPP |
26 #define SHARE_VM_CI_CIOBJECTFACTORY_HPP | |
27 | |
28 #include "ci/ciClassList.hpp" | |
29 #include "ci/ciObject.hpp" | |
30 #include "utilities/growableArray.hpp" | |
31 | |
0 | 32 // ciObjectFactory |
33 // | |
34 // This class handles requests for the creation of new instances | |
35 // of ciObject and its subclasses. It contains a caching mechanism | |
36 // which ensures that for each oop, at most one ciObject is created. | |
37 // This invariant allows efficient implementation of ciObject. | |
38 class ciObjectFactory : public ResourceObj { | |
3939 | 39 friend class VMStructs; |
40 friend class ciEnv; | |
41 | |
0 | 42 private: |
43 static volatile bool _initialized; | |
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44 static GrowableArray<ciMetadata*>* _shared_ci_metadata; |
0 | 45 static ciSymbol* _shared_ci_symbols[]; |
46 static int _shared_ident_limit; | |
47 | |
48 Arena* _arena; | |
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49 GrowableArray<ciMetadata*>* _ci_metadata; |
0 | 50 GrowableArray<ciMethod*>* _unloaded_methods; |
51 GrowableArray<ciKlass*>* _unloaded_klasses; | |
1602 | 52 GrowableArray<ciInstance*>* _unloaded_instances; |
0 | 53 GrowableArray<ciReturnAddress*>* _return_addresses; |
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54 GrowableArray<ciSymbol*>* _symbols; // keep list of symbols created |
0 | 55 int _next_ident; |
56 | |
57 public: | |
58 struct NonPermObject : public ResourceObj { | |
59 ciObject* _object; | |
60 NonPermObject* _next; | |
61 | |
62 inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object); | |
63 ciObject* object() { return _object; } | |
64 NonPermObject* &next() { return _next; } | |
65 }; | |
66 private: | |
67 enum { NON_PERM_BUCKETS = 61 }; | |
68 NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS]; | |
69 int _non_perm_count; | |
70 | |
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71 int find(Metadata* key, GrowableArray<ciMetadata*>* objects); |
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72 bool is_found_at(int index, Metadata* key, GrowableArray<ciMetadata*>* objects); |
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73 void insert(int index, ciMetadata* obj, GrowableArray<ciMetadata*>* objects); |
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74 |
0 | 75 ciObject* create_new_object(oop o); |
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76 ciMetadata* create_new_object(Metadata* o); |
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77 |
0 | 78 static bool is_equal(NonPermObject* p, oop key) { |
79 return p->object()->get_oop() == key; | |
80 } | |
81 | |
82 NonPermObject* &find_non_perm(oop key); | |
83 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj); | |
84 | |
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85 void init_ident_of(ciBaseObject* obj); |
0 | 86 |
87 Arena* arena() { return _arena; } | |
88 | |
89 void print_contents_impl(); | |
90 | |
1602 | 91 ciInstance* get_unloaded_instance(ciInstanceKlass* klass); |
92 | |
0 | 93 public: |
94 static bool is_initialized() { return _initialized; } | |
95 | |
96 static void initialize(); | |
97 void init_shared_objects(); | |
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98 void remove_symbols(); |
0 | 99 |
100 ciObjectFactory(Arena* arena, int expected_size); | |
101 | |
102 // Get the ciObject corresponding to some oop. | |
103 ciObject* get(oop key); | |
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104 ciMetadata* get_metadata(Metadata* key); |
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105 ciSymbol* get_symbol(Symbol* key); |
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106 |
0 | 107 // Get the ciSymbol corresponding to one of the vmSymbols. |
108 static ciSymbol* vm_symbol_at(int index); | |
109 | |
110 // Get the ciMethod representing an unloaded/unfound method. | |
111 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
112 ciSymbol* name, | |
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113 ciSymbol* signature, |
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114 ciInstanceKlass* accessor); |
0 | 115 |
116 // Get a ciKlass representing an unloaded klass. | |
117 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, | |
118 ciSymbol* name, | |
119 bool create_if_not_found); | |
120 | |
1602 | 121 // Get a ciInstance representing an unresolved klass mirror. |
122 ciInstance* get_unloaded_klass_mirror(ciKlass* type); | |
123 | |
124 // Get a ciInstance representing an unresolved method handle constant. | |
125 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
126 ciSymbol* name, | |
127 ciSymbol* signature, | |
128 int ref_kind); | |
129 | |
130 // Get a ciInstance representing an unresolved method type constant. | |
131 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature); | |
132 | |
0 | 133 |
134 // Get the ciMethodData representing the methodData for a method | |
135 // with none. | |
136 ciMethodData* get_empty_methodData(); | |
137 | |
138 ciReturnAddress* get_return_address(int bci); | |
139 | |
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140 GrowableArray<ciMetadata*>* get_ci_metadata() const { return _ci_metadata; } |
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141 // RedefineClasses support |
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142 void metadata_do(void f(Metadata*)); |
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143 |
0 | 144 void print_contents(); |
145 void print(); | |
146 }; | |
1972 | 147 |
148 #endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP |