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1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
3285f539 | 3 | * |
d064bd7e GL |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
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8 | */ |
9 | ||
3285f539 GCPL |
10 | /* |
11 | * Header for dynamic hash table routines Author - Eric Young | |
9579a363 MG |
12 | */ |
13 | ||
14 | #ifndef HEADER_LHASH_H | |
3285f539 | 15 | # define HEADER_LHASH_H |
9579a363 | 16 | |
3285f539 | 17 | # include <openssl/e_os2.h> |
d064bd7e | 18 | # include <openssl/bio.h> |
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19 | |
20 | #ifdef __cplusplus | |
21 | extern "C" { | |
22 | #endif | |
23 | ||
d064bd7e GL |
24 | typedef struct lhash_node_st OPENSSL_LH_NODE; |
25 | typedef int (*OPENSSL_LH_COMPFUNC) (const void *, const void *); | |
26 | typedef unsigned long (*OPENSSL_LH_HASHFUNC) (const void *); | |
27 | typedef void (*OPENSSL_LH_DOALL_FUNC) (void *); | |
28 | typedef void (*OPENSSL_LH_DOALL_FUNCARG) (void *, void *); | |
29 | typedef struct lhash_st OPENSSL_LHASH; | |
3285f539 GCPL |
30 | |
31 | /* | |
32 | * Macros for declaring and implementing type-safe wrappers for LHASH | |
33 | * callbacks. This way, callbacks can be provided to LHASH structures without | |
34 | * function pointer casting and the macro-defined callbacks provide | |
35 | * per-variable casting before deferring to the underlying type-specific | |
36 | * callbacks. NB: It is possible to place a "static" in front of both the | |
37 | * DECLARE and IMPLEMENT macros if the functions are strictly internal. | |
38 | */ | |
9579a363 MG |
39 | |
40 | /* First: "hash" functions */ | |
4ac84f86 GCPL |
41 | # define DECLARE_LHASH_HASH_FN(name, o_type) \ |
42 | unsigned long name##_LHASH_HASH(const void *); | |
43 | # define IMPLEMENT_LHASH_HASH_FN(name, o_type) \ | |
44 | unsigned long name##_LHASH_HASH(const void *arg) { \ | |
45 | const o_type *a = arg; \ | |
46 | return name##_hash(a); } | |
47 | # define LHASH_HASH_FN(name) name##_LHASH_HASH | |
9579a363 MG |
48 | |
49 | /* Second: "compare" functions */ | |
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50 | # define DECLARE_LHASH_COMP_FN(name, o_type) \ |
51 | int name##_LHASH_COMP(const void *, const void *); | |
52 | # define IMPLEMENT_LHASH_COMP_FN(name, o_type) \ | |
53 | int name##_LHASH_COMP(const void *arg1, const void *arg2) { \ | |
54 | const o_type *a = arg1; \ | |
55 | const o_type *b = arg2; \ | |
56 | return name##_cmp(a,b); } | |
57 | # define LHASH_COMP_FN(name) name##_LHASH_COMP | |
9579a363 | 58 | |
9579a363 | 59 | /* Fourth: "doall_arg" functions */ |
4ac84f86 GCPL |
60 | # define DECLARE_LHASH_DOALL_ARG_FN(name, o_type, a_type) \ |
61 | void name##_LHASH_DOALL_ARG(void *, void *); | |
62 | # define IMPLEMENT_LHASH_DOALL_ARG_FN(name, o_type, a_type) \ | |
63 | void name##_LHASH_DOALL_ARG(void *arg1, void *arg2) { \ | |
64 | o_type *a = arg1; \ | |
65 | a_type *b = arg2; \ | |
66 | name##_doall_arg(a, b); } | |
67 | # define LHASH_DOALL_ARG_FN(name) name##_LHASH_DOALL_ARG | |
3285f539 | 68 | |
3285f539 GCPL |
69 | |
70 | # define LH_LOAD_MULT 256 | |
71 | ||
d064bd7e GL |
72 | int OPENSSL_LH_error(OPENSSL_LHASH *lh); |
73 | OPENSSL_LHASH *OPENSSL_LH_new(OPENSSL_LH_HASHFUNC h, OPENSSL_LH_COMPFUNC c); | |
74 | void OPENSSL_LH_free(OPENSSL_LHASH *lh); | |
75 | void *OPENSSL_LH_insert(OPENSSL_LHASH *lh, void *data); | |
76 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data); | |
77 | void *OPENSSL_LH_retrieve(OPENSSL_LHASH *lh, const void *data); | |
78 | void OPENSSL_LH_doall(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNC func); | |
79 | void OPENSSL_LH_doall_arg(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNCARG func, void *arg); | |
80 | unsigned long OPENSSL_LH_strhash(const char *c); | |
81 | unsigned long OPENSSL_LH_num_items(const OPENSSL_LHASH *lh); | |
82 | unsigned long OPENSSL_LH_get_down_load(const OPENSSL_LHASH *lh); | |
83 | void OPENSSL_LH_set_down_load(OPENSSL_LHASH *lh, unsigned long down_load); | |
84 | ||
85 | # ifndef OPENSSL_NO_STDIO | |
86 | void OPENSSL_LH_stats(const OPENSSL_LHASH *lh, FILE *fp); | |
87 | void OPENSSL_LH_node_stats(const OPENSSL_LHASH *lh, FILE *fp); | |
88 | void OPENSSL_LH_node_usage_stats(const OPENSSL_LHASH *lh, FILE *fp); | |
3285f539 | 89 | # endif |
d064bd7e GL |
90 | void OPENSSL_LH_stats_bio(const OPENSSL_LHASH *lh, BIO *out); |
91 | void OPENSSL_LH_node_stats_bio(const OPENSSL_LHASH *lh, BIO *out); | |
92 | void OPENSSL_LH_node_usage_stats_bio(const OPENSSL_LHASH *lh, BIO *out); | |
93 | ||
94 | # if OPENSSL_API_COMPAT < 0x10100000L | |
95 | # define _LHASH OPENSSL_LHASH | |
96 | # define LHASH_NODE OPENSSL_LH_NODE | |
97 | # define lh_error OPENSSL_LH_error | |
98 | # define lh_new OPENSSL_lh_new | |
99 | # define lh_free OPENSSL_LH_free | |
100 | # define lh_insert OPENSSL_LH_insert | |
101 | # define lh_delete OPENSSL_LH_delete | |
102 | # define lh_retrieve OPENSSL_LH_retrieve | |
103 | # define lh_doall OPENSSL_LH_doall | |
104 | # define lh_doall_arg OPENSSL_LH_doall_arg | |
105 | # define lh_strhash OPENSSL_LH_strhash | |
106 | # define lh_num_items OPENSSL_LH_num_items | |
107 | # ifndef OPENSSL_NO_STDIO | |
108 | # define lh_stats OPENSSL_LH_stats | |
109 | # define lh_node_stats OPENSSL_LH_node_stats | |
110 | # define lh_node_usage_stats OPENSSL_LH_node_usage_stats | |
111 | # endif | |
112 | # define lh_stats_bio OPENSSL_LH_stats_bio | |
113 | # define lh_node_stats_bio OPENSSL_LH_node_stats_bio | |
114 | # define lh_node_usage_stats_bio OPENSSL_LH_node_usage_stats_bio | |
3285f539 | 115 | # endif |
4ac84f86 GCPL |
116 | |
117 | /* Type checking... */ | |
118 | ||
119 | # define LHASH_OF(type) struct lhash_st_##type | |
120 | ||
d064bd7e GL |
121 | # define DEFINE_LHASH_OF(type) \ |
122 | LHASH_OF(type) { union lh_##type##_dummy { void* d1; unsigned long d2; int d3; } dummy; }; \ | |
123 | static ossl_inline LHASH_OF(type) * \ | |
124 | lh_##type##_new(unsigned long (*hfn)(const type *), \ | |
125 | int (*cfn)(const type *, const type *)) \ | |
126 | { \ | |
127 | return (LHASH_OF(type) *) \ | |
128 | OPENSSL_LH_new((OPENSSL_LH_HASHFUNC)hfn, (OPENSSL_LH_COMPFUNC)cfn); \ | |
129 | } \ | |
130 | static ossl_inline void lh_##type##_free(LHASH_OF(type) *lh) \ | |
131 | { \ | |
132 | OPENSSL_LH_free((OPENSSL_LHASH *)lh); \ | |
133 | } \ | |
134 | static ossl_inline type *lh_##type##_insert(LHASH_OF(type) *lh, type *d) \ | |
135 | { \ | |
136 | return (type *)OPENSSL_LH_insert((OPENSSL_LHASH *)lh, d); \ | |
137 | } \ | |
138 | static ossl_inline type *lh_##type##_delete(LHASH_OF(type) *lh, const type *d) \ | |
139 | { \ | |
140 | return (type *)OPENSSL_LH_delete((OPENSSL_LHASH *)lh, d); \ | |
141 | } \ | |
142 | static ossl_inline type *lh_##type##_retrieve(LHASH_OF(type) *lh, const type *d) \ | |
143 | { \ | |
144 | return (type *)OPENSSL_LH_retrieve((OPENSSL_LHASH *)lh, d); \ | |
145 | } \ | |
146 | static ossl_inline int lh_##type##_error(LHASH_OF(type) *lh) \ | |
147 | { \ | |
148 | return OPENSSL_LH_error((OPENSSL_LHASH *)lh); \ | |
149 | } \ | |
150 | static ossl_inline unsigned long lh_##type##_num_items(LHASH_OF(type) *lh) \ | |
151 | { \ | |
152 | return OPENSSL_LH_num_items((OPENSSL_LHASH *)lh); \ | |
153 | } \ | |
154 | static ossl_inline void lh_##type##_node_stats_bio(const LHASH_OF(type) *lh, BIO *out) \ | |
155 | { \ | |
156 | OPENSSL_LH_node_stats_bio((const OPENSSL_LHASH *)lh, out); \ | |
157 | } \ | |
158 | static ossl_inline void lh_##type##_node_usage_stats_bio(const LHASH_OF(type) *lh, BIO *out) \ | |
159 | { \ | |
160 | OPENSSL_LH_node_usage_stats_bio((const OPENSSL_LHASH *)lh, out); \ | |
161 | } \ | |
162 | static ossl_inline void lh_##type##_stats_bio(const LHASH_OF(type) *lh, BIO *out) \ | |
163 | { \ | |
164 | OPENSSL_LH_stats_bio((const OPENSSL_LHASH *)lh, out); \ | |
165 | } \ | |
166 | static ossl_inline unsigned long lh_##type##_get_down_load(LHASH_OF(type) *lh) \ | |
167 | { \ | |
168 | return OPENSSL_LH_get_down_load((OPENSSL_LHASH *)lh); \ | |
169 | } \ | |
170 | static ossl_inline void lh_##type##_set_down_load(LHASH_OF(type) *lh, unsigned long dl) \ | |
171 | { \ | |
172 | OPENSSL_LH_set_down_load((OPENSSL_LHASH *)lh, dl); \ | |
173 | } \ | |
174 | static ossl_inline void lh_##type##_doall(LHASH_OF(type) *lh, \ | |
175 | void (*doall)(type *)) \ | |
176 | { \ | |
177 | OPENSSL_LH_doall((OPENSSL_LHASH *)lh, (OPENSSL_LH_DOALL_FUNC)doall); \ | |
178 | } \ | |
179 | LHASH_OF(type) | |
180 | ||
181 | #define IMPLEMENT_LHASH_DOALL_ARG_CONST(type, argtype) \ | |
182 | int_implement_lhash_doall(type, argtype, const type) | |
183 | ||
184 | #define IMPLEMENT_LHASH_DOALL_ARG(type, argtype) \ | |
185 | int_implement_lhash_doall(type, argtype, type) | |
186 | ||
187 | #define int_implement_lhash_doall(type, argtype, cbargtype) \ | |
188 | static ossl_inline void \ | |
189 | lh_##type##_doall_##argtype(LHASH_OF(type) *lh, \ | |
190 | void (*fn)(cbargtype *, argtype *), \ | |
191 | argtype *arg) \ | |
192 | { \ | |
193 | OPENSSL_LH_doall_arg((OPENSSL_LHASH *)lh, (OPENSSL_LH_DOALL_FUNCARG)fn, (void *)arg); \ | |
194 | } \ | |
195 | LHASH_OF(type) | |
196 | ||
197 | DEFINE_LHASH_OF(OPENSSL_STRING); | |
198 | DEFINE_LHASH_OF(OPENSSL_CSTRING); | |
4ac84f86 | 199 | |
9579a363 MG |
200 | #ifdef __cplusplus |
201 | } | |
202 | #endif | |
203 | ||
204 | #endif |