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annotate src/core/ngx_regex.c @ 4638:6e1a48bcf915

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Fixed the ngx_regex.h header file compatibility with C++.
author Valentin Bartenev <vbart@nginx.com>
date Thu, 17 May 2012 13:47:04 +0000
parents 196c3dacff0d
children e7f6991eca47
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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12 typedef struct {
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13 ngx_flag_t pcre_jit;
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14 } ngx_regex_conf_t;
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17 static void * ngx_libc_cdecl ngx_regex_malloc(size_t size);
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18 static void ngx_libc_cdecl ngx_regex_free(void *p);
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19 #if (NGX_HAVE_PCRE_JIT)
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20 static void ngx_pcre_free_studies(void *data);
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21 #endif
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22
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23 static ngx_int_t ngx_regex_module_init(ngx_cycle_t *cycle);
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24
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25 static void *ngx_regex_create_conf(ngx_cycle_t *cycle);
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26 static char *ngx_regex_init_conf(ngx_cycle_t *cycle, void *conf);
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27
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28 static char *ngx_regex_pcre_jit(ngx_conf_t *cf, void *post, void *data);
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29 static ngx_conf_post_t ngx_regex_pcre_jit_post = { ngx_regex_pcre_jit };
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32 static ngx_command_t ngx_regex_commands[] = {
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33
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34 { ngx_string("pcre_jit"),
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35 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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36 ngx_conf_set_flag_slot,
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37 0,
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38 offsetof(ngx_regex_conf_t, pcre_jit),
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39 &ngx_regex_pcre_jit_post },
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40
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41 ngx_null_command
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42 };
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44
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45 static ngx_core_module_t ngx_regex_module_ctx = {
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46 ngx_string("regex"),
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47 ngx_regex_create_conf,
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48 ngx_regex_init_conf
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49 };
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50
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51
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52 ngx_module_t ngx_regex_module = {
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53 NGX_MODULE_V1,
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54 &ngx_regex_module_ctx, /* module context */
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55 ngx_regex_commands, /* module directives */
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56 NGX_CORE_MODULE, /* module type */
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57 NULL, /* init master */
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58 ngx_regex_module_init, /* init module */
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59 NULL, /* init process */
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60 NULL, /* init thread */
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61 NULL, /* exit thread */
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62 NULL, /* exit process */
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63 NULL, /* exit master */
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64 NGX_MODULE_V1_PADDING
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65 };
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66
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68 static ngx_pool_t *ngx_pcre_pool;
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69 static ngx_list_t *ngx_pcre_studies;
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71
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72 void
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73 ngx_regex_init(void)
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74 {
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75 pcre_malloc = ngx_regex_malloc;
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76 pcre_free = ngx_regex_free;
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77 }
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79
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80 static ngx_inline void
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81 ngx_regex_malloc_init(ngx_pool_t *pool)
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82 {
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83 #if (NGX_THREADS)
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84 ngx_core_tls_t *tls;
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85
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86 if (ngx_threaded) {
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87 tls = ngx_thread_get_tls(ngx_core_tls_key);
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88 tls->pool = pool;
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89 return;
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90 }
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91
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92 #endif
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93
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94 ngx_pcre_pool = pool;
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95 }
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96
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97
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98 static ngx_inline void
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99 ngx_regex_malloc_done(void)
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100 {
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101 #if (NGX_THREADS)
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102 ngx_core_tls_t *tls;
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103
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104 if (ngx_threaded) {
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105 tls = ngx_thread_get_tls(ngx_core_tls_key);
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106 tls->pool = NULL;
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107 return;
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108 }
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109
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110 #endif
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111
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112 ngx_pcre_pool = NULL;
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113 }
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114
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115
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116 ngx_int_t
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117 ngx_regex_compile(ngx_regex_compile_t *rc)
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118 {
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119 int n, erroff;
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120 char *p;
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121 pcre *re;
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122 const char *errstr;
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123 ngx_regex_elt_t *elt;
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124
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125 ngx_regex_malloc_init(rc->pool);
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126
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127 re = pcre_compile((const char *) rc->pattern.data, (int) rc->options,
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128 &errstr, &erroff, NULL);
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
129
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
130 /* ensure that there is no current pool */
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
131 ngx_regex_malloc_done();
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
132
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133 if (re == NULL) {
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
134 if ((size_t) erroff == rc->pattern.len) {
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
135 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len,
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
136 "pcre_compile() failed: %s in \"%V\"",
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
137 errstr, &rc->pattern)
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
138 - rc->err.data;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
139
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
140 } else {
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
141 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len,
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
142 "pcre_compile() failed: %s in \"%V\" at \"%s\"",
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
143 errstr, &rc->pattern, rc->pattern.data + erroff)
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
144 - rc->err.data;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 }
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
146
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
147 return NGX_ERROR;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
148 }
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
149
4388
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
150 rc->regex = ngx_pcalloc(rc->pool, sizeof(ngx_regex_t));
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
151 if (rc->regex == NULL) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
152 return NGX_ERROR;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
153 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
154
4638
6e1a48bcf915 Fixed the ngx_regex.h header file compatibility with C++.
Valentin Bartenev <vbart@nginx.com>
parents: 4423
diff changeset
155 rc->regex->code = re;
4388
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
156
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
157 /* do not study at runtime */
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
158
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
159 if (ngx_pcre_studies != NULL) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
160 elt = ngx_list_push(ngx_pcre_studies);
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
161 if (elt == NULL) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
162 return NGX_ERROR;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
163 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
164
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
165 elt->regex = rc->regex;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
166 elt->name = rc->pattern.data;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
167 }
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
168
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
169 n = pcre_fullinfo(re, NULL, PCRE_INFO_CAPTURECOUNT, &rc->captures);
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
170 if (n < 0) {
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
171 p = "pcre_fullinfo(\"%V\", PCRE_INFO_CAPTURECOUNT) failed: %d";
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
172 goto failed;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
173 }
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
174
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
175 if (rc->captures == 0) {
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
176 return NGX_OK;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
179 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMECOUNT, &rc->named_captures);
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
180 if (n < 0) {
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
181 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMECOUNT) failed: %d";
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
182 goto failed;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
183 }
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
184
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
185 if (rc->named_captures == 0) {
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
186 return NGX_OK;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
187 }
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
188
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
189 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &rc->name_size);
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
190 if (n < 0) {
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
191 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMEENTRYSIZE) failed: %d";
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
192 goto failed;
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
193 }
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
194
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
195 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMETABLE, &rc->names);
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
196 if (n < 0) {
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
197 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMETABLE) failed: %d";
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
198 goto failed;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
199 }
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
200
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
201 return NGX_OK;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
202
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
203 failed:
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
204
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
205 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, p, &rc->pattern, n)
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
206 - rc->err.data;
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
207 return NGX_OK;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210
503
b1648294f693 nginx-0.1.26-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
211 ngx_int_t
1784
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
212 ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log)
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
213 {
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
214 ngx_int_t n;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
215 ngx_uint_t i;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
216 ngx_regex_elt_t *re;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
217
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
218 re = a->elts;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
219
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
220 for (i = 0; i < a->nelts; i++) {
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
221
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
222 n = ngx_regex_exec(re[i].regex, s, NULL, 0);
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
223
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
224 if (n == NGX_REGEX_NO_MATCHED) {
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
225 continue;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
226 }
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
227
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
228 if (n < 0) {
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
229 ngx_log_error(NGX_LOG_ALERT, log, 0,
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
230 ngx_regex_exec_n " failed: %i on \"%V\" using \"%s\"",
1784
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
231 n, s, re[i].name);
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
232 return NGX_ERROR;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
233 }
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
234
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
235 /* match */
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
236
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
237 return NGX_OK;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
238 }
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
239
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
240 return NGX_DECLINED;
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
241 }
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
242
7d313324d874 ngx_regex_exec_array()
Igor Sysoev <igor@sysoev.ru>
parents: 503
diff changeset
243
503
b1648294f693 nginx-0.1.26-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
244 static void * ngx_libc_cdecl
b1648294f693 nginx-0.1.26-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
245 ngx_regex_malloc(size_t size)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
246 {
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
247 ngx_pool_t *pool;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
248 #if (NGX_THREADS)
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
249 ngx_core_tls_t *tls;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
250
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
251 if (ngx_threaded) {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
252 tls = ngx_thread_get_tls(ngx_core_tls_key);
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
253 pool = tls->pool;
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
254
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
255 } else {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
256 pool = ngx_pcre_pool;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
257 }
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
258
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
259 #else
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
260
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
261 pool = ngx_pcre_pool;
3325
42c16d8bddbe regex named captures
Igor Sysoev <igor@sysoev.ru>
parents: 3319
diff changeset
262
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
263 #endif
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
264
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
265 if (pool) {
2049
2a92804f4109 *) back out r2040
Igor Sysoev <igor@sysoev.ru>
parents: 2039
diff changeset
266 return ngx_palloc(pool, size);
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
267 }
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
268
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
269 return NULL;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
270 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
diff changeset
271
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
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272
503
b1648294f693 nginx-0.1.26-RELEASE import
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parents: 501
diff changeset
273 static void ngx_libc_cdecl
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parents: 501
diff changeset
274 ngx_regex_free(void *p)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
diff changeset
275 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
diff changeset
276 return;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
diff changeset
277 }
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278
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279
4423
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280 #if (NGX_HAVE_PCRE_JIT)
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281
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diff changeset
282 static void
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283 ngx_pcre_free_studies(void *data)
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diff changeset
284 {
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diff changeset
285 ngx_list_t *studies = data;
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286
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diff changeset
287 ngx_uint_t i;
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diff changeset
288 ngx_list_part_t *part;
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diff changeset
289 ngx_regex_elt_t *elts;
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290
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diff changeset
291 part = &studies->part;
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diff changeset
292 elts = part->elts;
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diff changeset
293
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
294 for (i = 0 ; /* void */ ; i++) {
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295
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diff changeset
296 if (i >= part->nelts) {
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diff changeset
297 if (part->next == NULL) {
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
298 break;
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diff changeset
299 }
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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300
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
301 part = part->next;
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diff changeset
302 elts = part->elts;
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diff changeset
303 i = 0;
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diff changeset
304 }
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
305
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
306 if (elts[i].regex->extra != NULL) {
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
307 pcre_free_study(elts[i].regex->extra);
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diff changeset
308 }
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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parents: 4413
diff changeset
309 }
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diff changeset
310 }
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
311
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
Valentin Bartenev <vbart@nginx.com>
parents: 4413
diff changeset
312 #endif
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diff changeset
313
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
314
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diff changeset
315 static ngx_int_t
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diff changeset
316 ngx_regex_module_init(ngx_cycle_t *cycle)
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
317 {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
318 int opt;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
319 const char *errstr;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
320 ngx_uint_t i;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
321 ngx_list_part_t *part;
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diff changeset
322 ngx_regex_elt_t *elts;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
323
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
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diff changeset
324 opt = 0;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
325
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
326 #if (NGX_HAVE_PCRE_JIT)
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diff changeset
327 {
4423
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diff changeset
328 ngx_regex_conf_t *rcf;
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
329 ngx_pool_cleanup_t *cln;
4388
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diff changeset
330
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
331 rcf = (ngx_regex_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_regex_module);
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
332
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
333 if (rcf->pcre_jit) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
334 opt = PCRE_STUDY_JIT_COMPILE;
4423
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
335
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
Valentin Bartenev <vbart@nginx.com>
parents: 4413
diff changeset
336 /*
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diff changeset
337 * The PCRE JIT compiler uses mmap for its executable codes, so we
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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parents: 4413
diff changeset
338 * have to explicitly call the pcre_free_study() function to free
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
Valentin Bartenev <vbart@nginx.com>
parents: 4413
diff changeset
339 * this memory.
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parents: 4413
diff changeset
340 */
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diff changeset
341
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
Valentin Bartenev <vbart@nginx.com>
parents: 4413
diff changeset
342 cln = ngx_pool_cleanup_add(cycle->pool, 0);
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
Valentin Bartenev <vbart@nginx.com>
parents: 4413
diff changeset
343 if (cln == NULL) {
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Valentin Bartenev <vbart@nginx.com>
parents: 4413
diff changeset
344 return NGX_ERROR;
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
Valentin Bartenev <vbart@nginx.com>
parents: 4413
diff changeset
345 }
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
346
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Valentin Bartenev <vbart@nginx.com>
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diff changeset
347 cln->handler = ngx_pcre_free_studies;
196c3dacff0d Fixed memory leak on HUP signal when PCRE JIT was used.
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diff changeset
348 cln->data = ngx_pcre_studies;
4388
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diff changeset
349 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
350 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
351 #endif
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
352
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
353 ngx_regex_malloc_init(cycle->pool);
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
354
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
355 part = &ngx_pcre_studies->part;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
356 elts = part->elts;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
357
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
358 for (i = 0 ; /* void */ ; i++) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
359
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
360 if (i >= part->nelts) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
361 if (part->next == NULL) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
362 break;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
363 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
364
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
365 part = part->next;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
366 elts = part->elts;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
367 i = 0;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
368 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
369
4638
6e1a48bcf915 Fixed the ngx_regex.h header file compatibility with C++.
Valentin Bartenev <vbart@nginx.com>
parents: 4423
diff changeset
370 elts[i].regex->extra = pcre_study(elts[i].regex->code, opt, &errstr);
4388
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
371
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
372 if (errstr != NULL) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
373 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
374 "pcre_study() failed: %s in \"%s\"",
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
375 errstr, elts[i].name);
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
376 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
377
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
378 #if (NGX_HAVE_PCRE_JIT)
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
379 if (opt & PCRE_STUDY_JIT_COMPILE) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
380 int jit, n;
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
381
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff changeset
382 jit = 0;
4638
6e1a48bcf915 Fixed the ngx_regex.h header file compatibility with C++.
Valentin Bartenev <vbart@nginx.com>
parents: 4423
diff changeset
383 n = pcre_fullinfo(elts[i].regex->code, elts[i].regex->extra,
4388
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
384 PCRE_INFO_JIT, &jit);
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
385
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
386 if (n != 0 || jit != 1) {
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
387 ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
388 "JIT compiler does not support pattern: \"%s\"",
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
389 elts[i].name);
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
390 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
391 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
392 #endif
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
393 }
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
394
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
395 ngx_regex_malloc_done();
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents: 4326
diff changeset
396
005fc2d5e84f Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents: 4326
diff changeset
397 ngx_pcre_studies = NULL;
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398
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399 return NGX_OK;
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400 }
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401
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402
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403 static void *
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404 ngx_regex_create_conf(ngx_cycle_t *cycle)
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405 {
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406 ngx_regex_conf_t *rcf;
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407
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408 rcf = ngx_pcalloc(cycle->pool, sizeof(ngx_regex_conf_t));
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409 if (rcf == NULL) {
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410 return NULL;
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411 }
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412
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413 rcf->pcre_jit = NGX_CONF_UNSET;
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414
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415 ngx_pcre_studies = ngx_list_create(cycle->pool, 8, sizeof(ngx_regex_elt_t));
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416 if (ngx_pcre_studies == NULL) {
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417 return NULL;
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418 }
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419
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420 return rcf;
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421 }
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422
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423
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424 static char *
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425 ngx_regex_init_conf(ngx_cycle_t *cycle, void *conf)
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426 {
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427 ngx_regex_conf_t *rcf = conf;
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428
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429 ngx_conf_init_value(rcf->pcre_jit, 0);
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430
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431 return NGX_CONF_OK;
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432 }
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433
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434
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435 static char *
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436 ngx_regex_pcre_jit(ngx_conf_t *cf, void *post, void *data)
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437 {
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438 ngx_flag_t *fp = data;
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439
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440 if (*fp == 0) {
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441 return NGX_CONF_OK;
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442 }
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443
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444 #if (NGX_HAVE_PCRE_JIT)
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445 {
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446 int jit, r;
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447
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448 jit = 0;
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449 r = pcre_config(PCRE_CONFIG_JIT, &jit);
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450
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451 if (r != 0 || jit != 1) {
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452 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
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453 "PCRE library does not support JIT");
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454 *fp = 0;
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455 }
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456 }
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457 #else
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458 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
4413
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459 "nginx was built without PCRE JIT support");
4388
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460 *fp = 0;
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diff changeset
461 #endif
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462
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463 return NGX_CONF_OK;
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464 }