1 /*
2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
26 #define SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
27
28 #include "oops/constantPool.hpp"
29 #include "utilities/hashtable.hpp"
30
31 class ResolutionErrorEntry;
32
33 // ResolutionError objects are used to record errors encountered during
34 // constant pool resolution (JVMS 5.4.3).
35
36 class ResolutionErrorTable : public Hashtable<ConstantPool*, mtClass> {
37
38 public:
39 ResolutionErrorTable(int table_size);
40
41 ResolutionErrorEntry* new_entry(int hash, ConstantPool* pool, int cp_index, Symbol* error);
42 void free_entry(ResolutionErrorEntry *entry);
43
44 ResolutionErrorEntry* bucket(int i) {
45 return (ResolutionErrorEntry*)Hashtable<ConstantPool*, mtClass>::bucket(i);
46 }
47
48 ResolutionErrorEntry** bucket_addr(int i) {
49 return (ResolutionErrorEntry**)Hashtable<ConstantPool*, mtClass>::bucket_addr(i);
50 }
51
52 void add_entry(int index, ResolutionErrorEntry* new_entry) {
53 Hashtable<ConstantPool*, mtClass>::add_entry(index,
54 (HashtableEntry<ConstantPool*, mtClass>*)new_entry);
55 }
56
57 void add_entry(int index, unsigned int hash,
58 constantPoolHandle pool, int which, Symbol* error);
59
60
61 // find error given the constant pool and constant pool index
62 ResolutionErrorEntry* find_entry(int index, unsigned int hash,
63 constantPoolHandle pool, int cp_index);
64
65
66 unsigned int compute_hash(constantPoolHandle pool, int cp_index) {
67 return (unsigned int) pool->identity_hash() + cp_index;
68 }
69
70 // purges unloaded entries from the table
71 void purge_resolution_errors();
72
73 // RedefineClasses support - remove obsolete constant pool entry
74 void delete_entry(ConstantPool* c);
75 };
76
77
78 class ResolutionErrorEntry : public HashtableEntry<ConstantPool*, mtClass> {
79 private:
80 int _cp_index;
81 Symbol* _error;
82
83 public:
84 ConstantPool* pool() const { return (ConstantPool*)literal(); }
85 ConstantPool** pool_addr() { return (ConstantPool**)literal_addr(); }
86
87 int cp_index() const { return _cp_index; }
88 void set_cp_index(int cp_index) { _cp_index = cp_index; }
89
90 Symbol* error() const { return _error; }
91 void set_error(Symbol* e);
92
93 ResolutionErrorEntry* next() const {
94 return (ResolutionErrorEntry*)HashtableEntry<ConstantPool*, mtClass>::next();
95 }
96
97 ResolutionErrorEntry** next_addr() {
98 return (ResolutionErrorEntry**)HashtableEntry<ConstantPool*, mtClass>::next_addr();
99 }
100 };
101
102 #endif // SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
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1 /*
2 * Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
26 #define SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
27
28 #include "oops/constantPool.hpp"
29 #include "utilities/hashtable.hpp"
30
31 class ResolutionErrorEntry;
32
33 // ResolutionError objects are used to record errors encountered during
34 // constant pool resolution (JVMS 5.4.3).
35
36 class ResolutionErrorTable : public Hashtable<ConstantPool*, mtClass> {
37
38 public:
39 ResolutionErrorTable(int table_size);
40
41 ResolutionErrorEntry* new_entry(int hash, ConstantPool* pool, int cp_index,
42 Symbol* error, Symbol* message);
43 void free_entry(ResolutionErrorEntry *entry);
44
45 ResolutionErrorEntry* bucket(int i) {
46 return (ResolutionErrorEntry*)Hashtable<ConstantPool*, mtClass>::bucket(i);
47 }
48
49 ResolutionErrorEntry** bucket_addr(int i) {
50 return (ResolutionErrorEntry**)Hashtable<ConstantPool*, mtClass>::bucket_addr(i);
51 }
52
53 void add_entry(int index, ResolutionErrorEntry* new_entry) {
54 Hashtable<ConstantPool*, mtClass>::add_entry(index,
55 (HashtableEntry<ConstantPool*, mtClass>*)new_entry);
56 }
57
58 void add_entry(int index, unsigned int hash,
59 constantPoolHandle pool, int which, Symbol* error, Symbol* message);
60
61
62 // find error given the constant pool and constant pool index
63 ResolutionErrorEntry* find_entry(int index, unsigned int hash,
64 constantPoolHandle pool, int cp_index);
65
66
67 unsigned int compute_hash(constantPoolHandle pool, int cp_index) {
68 return (unsigned int) pool->identity_hash() + cp_index;
69 }
70
71 // purges unloaded entries from the table
72 void purge_resolution_errors();
73
74 // RedefineClasses support - remove obsolete constant pool entry
75 void delete_entry(ConstantPool* c);
76 };
77
78
79 class ResolutionErrorEntry : public HashtableEntry<ConstantPool*, mtClass> {
80 private:
81 int _cp_index;
82 Symbol* _error;
83 Symbol* _message;
84
85 public:
86 ConstantPool* pool() const { return literal(); }
87
88 int cp_index() const { return _cp_index; }
89 void set_cp_index(int cp_index) { _cp_index = cp_index; }
90
91 Symbol* error() const { return _error; }
92 void set_error(Symbol* e);
93
94 Symbol* message() const { return _message; }
95 void set_message(Symbol* c);
96
97 ResolutionErrorEntry* next() const {
98 return (ResolutionErrorEntry*)HashtableEntry<ConstantPool*, mtClass>::next();
99 }
100
101 ResolutionErrorEntry** next_addr() {
102 return (ResolutionErrorEntry**)HashtableEntry<ConstantPool*, mtClass>::next_addr();
103 }
104 };
105
106 #endif // SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
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