Mercurial > hg > truffle
annotate src/share/vm/ci/ciObjectFactory.hpp @ 6147:5ba29a1db46e hs24-b14
Merge
author | amurillo |
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date | Fri, 15 Jun 2012 14:07:00 -0700 |
parents | 5eb9169b1a14 |
children | 04b9a2566eec da91efe96a93 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2011, 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; | |
44 static GrowableArray<ciObject*>* _shared_ci_objects; | |
45 static ciSymbol* _shared_ci_symbols[]; | |
46 static int _shared_ident_limit; | |
47 | |
48 Arena* _arena; | |
49 GrowableArray<ciObject*>* _ci_objects; | |
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 | |
71 int find(oop key, GrowableArray<ciObject*>* objects); | |
72 bool is_found_at(int index, oop key, GrowableArray<ciObject*>* objects); | |
73 void insert(int index, ciObject* obj, GrowableArray<ciObject*>* objects); | |
74 ciObject* create_new_object(oop o); | |
75 static bool is_equal(NonPermObject* p, oop key) { | |
76 return p->object()->get_oop() == key; | |
77 } | |
78 | |
79 NonPermObject* &find_non_perm(oop key); | |
80 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj); | |
81 | |
82 void init_ident_of(ciObject* obj); | |
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83 void init_ident_of(ciSymbol* obj); |
0 | 84 |
85 Arena* arena() { return _arena; } | |
86 | |
87 void print_contents_impl(); | |
88 | |
1602 | 89 ciInstance* get_unloaded_instance(ciInstanceKlass* klass); |
90 | |
0 | 91 public: |
92 static bool is_initialized() { return _initialized; } | |
93 | |
94 static void initialize(); | |
95 void init_shared_objects(); | |
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96 void remove_symbols(); |
0 | 97 |
98 ciObjectFactory(Arena* arena, int expected_size); | |
99 | |
100 // Get the ciObject corresponding to some oop. | |
101 ciObject* get(oop key); | |
102 | |
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103 ciSymbol* get_symbol(Symbol* key); |
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104 |
0 | 105 // Get the ciSymbol corresponding to one of the vmSymbols. |
106 static ciSymbol* vm_symbol_at(int index); | |
107 | |
108 // Get the ciMethod representing an unloaded/unfound method. | |
109 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
110 ciSymbol* name, | |
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111 ciSymbol* signature, |
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112 ciInstanceKlass* accessor); |
0 | 113 |
114 // Get a ciKlass representing an unloaded klass. | |
115 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, | |
116 ciSymbol* name, | |
117 bool create_if_not_found); | |
118 | |
1602 | 119 // Get a ciInstance representing an unresolved klass mirror. |
120 ciInstance* get_unloaded_klass_mirror(ciKlass* type); | |
121 | |
122 // Get a ciInstance representing an unresolved method handle constant. | |
123 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
124 ciSymbol* name, | |
125 ciSymbol* signature, | |
126 int ref_kind); | |
127 | |
128 // Get a ciInstance representing an unresolved method type constant. | |
129 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature); | |
130 | |
0 | 131 |
132 // Get the ciMethodData representing the methodData for a method | |
133 // with none. | |
134 ciMethodData* get_empty_methodData(); | |
135 | |
136 ciReturnAddress* get_return_address(int bci); | |
137 | |
138 void print_contents(); | |
139 void print(); | |
140 }; | |
1972 | 141 |
142 #endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP |