108
|
1 |
/* crypto/lhash/lhash.h */
|
|
2 |
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
|
3 |
* All rights reserved.
|
|
4 |
*
|
|
5 |
* This package is an SSL implementation written
|
|
6 |
* by Eric Young (eay@cryptsoft.com).
|
|
7 |
* The implementation was written so as to conform with Netscapes SSL.
|
|
8 |
*
|
|
9 |
* This library is free for commercial and non-commercial use as long as
|
|
10 |
* the following conditions are aheared to. The following conditions
|
|
11 |
* apply to all code found in this distribution, be it the RC4, RSA,
|
|
12 |
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
|
|
13 |
* included with this distribution is covered by the same copyright terms
|
|
14 |
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
|
|
15 |
*
|
|
16 |
* Copyright remains Eric Young's, and as such any Copyright notices in
|
|
17 |
* the code are not to be removed.
|
|
18 |
* If this package is used in a product, Eric Young should be given attribution
|
|
19 |
* as the author of the parts of the library used.
|
|
20 |
* This can be in the form of a textual message at program startup or
|
|
21 |
* in documentation (online or textual) provided with the package.
|
|
22 |
*
|
|
23 |
* Redistribution and use in source and binary forms, with or without
|
|
24 |
* modification, are permitted provided that the following conditions
|
|
25 |
* are met:
|
|
26 |
* 1. Redistributions of source code must retain the copyright
|
|
27 |
* notice, this list of conditions and the following disclaimer.
|
|
28 |
* 2. Redistributions in binary form must reproduce the above copyright
|
|
29 |
* notice, this list of conditions and the following disclaimer in the
|
|
30 |
* documentation and/or other materials provided with the distribution.
|
|
31 |
* 3. All advertising materials mentioning features or use of this software
|
|
32 |
* must display the following acknowledgement:
|
|
33 |
* "This product includes cryptographic software written by
|
|
34 |
* Eric Young (eay@cryptsoft.com)"
|
|
35 |
* The word 'cryptographic' can be left out if the rouines from the library
|
|
36 |
* being used are not cryptographic related :-).
|
|
37 |
* 4. If you include any Windows specific code (or a derivative thereof) from
|
|
38 |
* the apps directory (application code) you must include an acknowledgement:
|
|
39 |
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
|
|
40 |
*
|
|
41 |
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
|
|
42 |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
43 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
44 |
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
45 |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
46 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
47 |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
48 |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
49 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
50 |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
51 |
* SUCH DAMAGE.
|
|
52 |
*
|
|
53 |
* The licence and distribution terms for any publically available version or
|
|
54 |
* derivative of this code cannot be changed. i.e. this code cannot simply be
|
|
55 |
* copied and put under another distribution licence
|
|
56 |
* [including the GNU Public Licence.]
|
|
57 |
*/
|
|
58 |
|
|
59 |
/* Header for dynamic hash table routines
|
|
60 |
* Author - Eric Young
|
|
61 |
*/
|
|
62 |
|
|
63 |
#ifndef HEADER_LHASH_H
|
|
64 |
#define HEADER_LHASH_H
|
|
65 |
|
|
66 |
#ifndef OPENSSL_NO_FP_API
|
|
67 |
#include <stdio.h>
|
|
68 |
#endif
|
|
69 |
|
|
70 |
#ifndef OPENSSL_NO_BIO
|
|
71 |
#include <openssl/bio.h>
|
|
72 |
#endif
|
|
73 |
|
|
74 |
#ifdef __cplusplus
|
|
75 |
extern "C" {
|
|
76 |
#endif
|
|
77 |
|
|
78 |
typedef struct lhash_node_st
|
|
79 |
{
|
|
80 |
const void *data;
|
|
81 |
struct lhash_node_st *next;
|
|
82 |
#ifndef OPENSSL_NO_HASH_COMP
|
|
83 |
unsigned long hash;
|
|
84 |
#endif
|
|
85 |
} LHASH_NODE;
|
|
86 |
|
|
87 |
typedef int (*LHASH_COMP_FN_TYPE)(const void *, const void *);
|
|
88 |
typedef unsigned long (*LHASH_HASH_FN_TYPE)(const void *);
|
|
89 |
typedef void (*LHASH_DOALL_FN_TYPE)(const void *);
|
|
90 |
typedef void (*LHASH_DOALL_ARG_FN_TYPE)(const void *, void *);
|
|
91 |
|
|
92 |
/* Macros for declaring and implementing type-safe wrappers for LHASH callbacks.
|
|
93 |
* This way, callbacks can be provided to LHASH structures without function
|
|
94 |
* pointer casting and the macro-defined callbacks provide per-variable casting
|
|
95 |
* before deferring to the underlying type-specific callbacks. NB: It is
|
|
96 |
* possible to place a "static" in front of both the DECLARE and IMPLEMENT
|
|
97 |
* macros if the functions are strictly internal. */
|
|
98 |
|
|
99 |
/* First: "hash" functions */
|
|
100 |
#define DECLARE_LHASH_HASH_FN(f_name,o_type) \
|
|
101 |
unsigned long f_name##_LHASH_HASH(const void *);
|
|
102 |
#define IMPLEMENT_LHASH_HASH_FN(f_name,o_type) \
|
|
103 |
unsigned long f_name##_LHASH_HASH(const void *arg) { \
|
|
104 |
o_type a = (o_type)arg; \
|
|
105 |
return f_name(a); }
|
|
106 |
#define LHASH_HASH_FN(f_name) f_name##_LHASH_HASH
|
|
107 |
|
|
108 |
/* Second: "compare" functions */
|
|
109 |
#define DECLARE_LHASH_COMP_FN(f_name,o_type) \
|
|
110 |
int f_name##_LHASH_COMP(const void *, const void *);
|
|
111 |
#define IMPLEMENT_LHASH_COMP_FN(f_name,o_type) \
|
|
112 |
int f_name##_LHASH_COMP(const void *arg1, const void *arg2) { \
|
|
113 |
o_type a = (o_type)arg1; \
|
|
114 |
o_type b = (o_type)arg2; \
|
|
115 |
return f_name(a,b); }
|
|
116 |
#define LHASH_COMP_FN(f_name) f_name##_LHASH_COMP
|
|
117 |
|
|
118 |
/* Third: "doall" functions */
|
|
119 |
#define DECLARE_LHASH_DOALL_FN(f_name,o_type) \
|
|
120 |
void f_name##_LHASH_DOALL(const void *);
|
|
121 |
#define IMPLEMENT_LHASH_DOALL_FN(f_name,o_type) \
|
|
122 |
void f_name##_LHASH_DOALL(const void *arg) { \
|
|
123 |
o_type a = (o_type)arg; \
|
|
124 |
f_name(a); }
|
|
125 |
#define LHASH_DOALL_FN(f_name) f_name##_LHASH_DOALL
|
|
126 |
|
|
127 |
/* Fourth: "doall_arg" functions */
|
|
128 |
#define DECLARE_LHASH_DOALL_ARG_FN(f_name,o_type,a_type) \
|
|
129 |
void f_name##_LHASH_DOALL_ARG(const void *, void *);
|
|
130 |
#define IMPLEMENT_LHASH_DOALL_ARG_FN(f_name,o_type,a_type) \
|
|
131 |
void f_name##_LHASH_DOALL_ARG(const void *arg1, void *arg2) { \
|
|
132 |
o_type a = (o_type)arg1; \
|
|
133 |
a_type b = (a_type)arg2; \
|
|
134 |
f_name(a,b); }
|
|
135 |
#define LHASH_DOALL_ARG_FN(f_name) f_name##_LHASH_DOALL_ARG
|
|
136 |
|
|
137 |
typedef struct lhash_st
|
|
138 |
{
|
|
139 |
LHASH_NODE **b;
|
|
140 |
LHASH_COMP_FN_TYPE comp;
|
|
141 |
LHASH_HASH_FN_TYPE hash;
|
|
142 |
unsigned int num_nodes;
|
|
143 |
unsigned int num_alloc_nodes;
|
|
144 |
unsigned int p;
|
|
145 |
unsigned int pmax;
|
|
146 |
unsigned long up_load; /* load times 256 */
|
|
147 |
unsigned long down_load; /* load times 256 */
|
|
148 |
unsigned long num_items;
|
|
149 |
|
|
150 |
unsigned long num_expands;
|
|
151 |
unsigned long num_expand_reallocs;
|
|
152 |
unsigned long num_contracts;
|
|
153 |
unsigned long num_contract_reallocs;
|
|
154 |
unsigned long num_hash_calls;
|
|
155 |
unsigned long num_comp_calls;
|
|
156 |
unsigned long num_insert;
|
|
157 |
unsigned long num_replace;
|
|
158 |
unsigned long num_delete;
|
|
159 |
unsigned long num_no_delete;
|
|
160 |
unsigned long num_retrieve;
|
|
161 |
unsigned long num_retrieve_miss;
|
|
162 |
unsigned long num_hash_comps;
|
|
163 |
|
|
164 |
int error;
|
|
165 |
} LHASH;
|
|
166 |
|
|
167 |
#define LH_LOAD_MULT 256
|
|
168 |
|
|
169 |
/* Indicates a malloc() error in the last call, this is only bad
|
|
170 |
* in lh_insert(). */
|
|
171 |
#define lh_error(lh) ((lh)->error)
|
|
172 |
|
|
173 |
LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c);
|
|
174 |
void lh_free(LHASH *lh);
|
|
175 |
void *lh_insert(LHASH *lh, const void *data);
|
|
176 |
void *lh_delete(LHASH *lh, const void *data);
|
|
177 |
void *lh_retrieve(LHASH *lh, const void *data);
|
|
178 |
void lh_doall(LHASH *lh, LHASH_DOALL_FN_TYPE func);
|
|
179 |
void lh_doall_arg(LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, void *arg);
|
|
180 |
unsigned long lh_strhash(const char *c);
|
|
181 |
unsigned long lh_num_items(const LHASH *lh);
|
|
182 |
|
|
183 |
#ifndef OPENSSL_NO_FP_API
|
|
184 |
void lh_stats(const LHASH *lh, FILE *out);
|
|
185 |
void lh_node_stats(const LHASH *lh, FILE *out);
|
|
186 |
void lh_node_usage_stats(const LHASH *lh, FILE *out);
|
|
187 |
#endif
|
|
188 |
|
|
189 |
#ifndef OPENSSL_NO_BIO
|
|
190 |
void lh_stats_bio(const LHASH *lh, BIO *out);
|
|
191 |
void lh_node_stats_bio(const LHASH *lh, BIO *out);
|
|
192 |
void lh_node_usage_stats_bio(const LHASH *lh, BIO *out);
|
|
193 |
#endif
|
|
194 |
#ifdef __cplusplus
|
|
195 |
}
|
|
196 |
#endif
|
|
197 |
|
|
198 |
#endif
|
|
199 |
|
|
200 |
|