Mercurial > hg > nginx-quic
annotate src/core/ngx_regex.c @ 9015:c7e103acb409
Gzip static: ranges support (ticket #2349).
In contrast to on-the-fly gzipping with gzip filter, static gzipped
representation as returned by gzip_static is persistent, and therefore
the same binary representation is available for future requests, making
it possible to use range requests.
Further, if a gzipped representation is re-generated with different
compression settings, it is expected to result in different ETag and
different size reported in the Content-Range header, making it possible
to safely use range requests anyway.
As such, ranges are now allowed for files returned by gzip_static.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 24 Jan 2023 03:01:51 +0300 |
parents | d07456044b61 |
children | 77d5c662f3d9 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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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_list_t *studies; |
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15 } ngx_regex_conf_t; |
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16 |
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17 |
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18 static ngx_inline void ngx_regex_malloc_init(ngx_pool_t *pool); |
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19 static ngx_inline void ngx_regex_malloc_done(void); |
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20 |
8772 | 21 #if (NGX_PCRE2) |
22 static void * ngx_libc_cdecl ngx_regex_malloc(size_t size, void *data); | |
23 static void ngx_libc_cdecl ngx_regex_free(void *p, void *data); | |
24 #else | |
503 | 25 static void * ngx_libc_cdecl ngx_regex_malloc(size_t size); |
26 static void ngx_libc_cdecl ngx_regex_free(void *p); | |
8772 | 27 #endif |
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28 static void ngx_regex_cleanup(void *data); |
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29 |
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30 static ngx_int_t ngx_regex_module_init(ngx_cycle_t *cycle); |
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31 |
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32 static void *ngx_regex_create_conf(ngx_cycle_t *cycle); |
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33 static char *ngx_regex_init_conf(ngx_cycle_t *cycle, void *conf); |
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34 |
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35 static char *ngx_regex_pcre_jit(ngx_conf_t *cf, void *post, void *data); |
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36 static ngx_conf_post_t ngx_regex_pcre_jit_post = { ngx_regex_pcre_jit }; |
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37 |
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38 |
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39 static ngx_command_t ngx_regex_commands[] = { |
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40 |
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41 { ngx_string("pcre_jit"), |
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42 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_FLAG, |
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43 ngx_conf_set_flag_slot, |
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44 0, |
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45 offsetof(ngx_regex_conf_t, pcre_jit), |
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46 &ngx_regex_pcre_jit_post }, |
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47 |
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48 ngx_null_command |
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49 }; |
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50 |
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51 |
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52 static ngx_core_module_t ngx_regex_module_ctx = { |
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53 ngx_string("regex"), |
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54 ngx_regex_create_conf, |
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55 ngx_regex_init_conf |
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56 }; |
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57 |
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58 |
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59 ngx_module_t ngx_regex_module = { |
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60 NGX_MODULE_V1, |
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61 &ngx_regex_module_ctx, /* module context */ |
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62 ngx_regex_commands, /* module directives */ |
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63 NGX_CORE_MODULE, /* module type */ |
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64 NULL, /* init master */ |
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65 ngx_regex_module_init, /* init module */ |
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66 NULL, /* init process */ |
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67 NULL, /* init thread */ |
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68 NULL, /* exit thread */ |
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69 NULL, /* exit process */ |
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70 NULL, /* exit master */ |
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71 NGX_MODULE_V1_PADDING |
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72 }; |
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73 |
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74 |
8772 | 75 static ngx_pool_t *ngx_regex_pool; |
76 static ngx_list_t *ngx_regex_studies; | |
77 static ngx_uint_t ngx_regex_direct_alloc; | |
78 | |
79 #if (NGX_PCRE2) | |
80 static pcre2_compile_context *ngx_regex_compile_context; | |
81 static pcre2_match_data *ngx_regex_match_data; | |
82 static ngx_uint_t ngx_regex_match_data_size; | |
83 #endif | |
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84 |
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85 |
503 | 86 void |
87 ngx_regex_init(void) | |
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88 { |
8772 | 89 #if !(NGX_PCRE2) |
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90 pcre_malloc = ngx_regex_malloc; |
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91 pcre_free = ngx_regex_free; |
8772 | 92 #endif |
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93 } |
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94 |
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95 |
3325 | 96 static ngx_inline void |
97 ngx_regex_malloc_init(ngx_pool_t *pool) | |
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98 { |
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99 ngx_regex_pool = pool; |
8772 | 100 ngx_regex_direct_alloc = (pool == NULL) ? 1 : 0; |
3325 | 101 } |
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102 |
3325 | 103 |
104 static ngx_inline void | |
105 ngx_regex_malloc_done(void) | |
106 { | |
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107 ngx_regex_pool = NULL; |
8772 | 108 ngx_regex_direct_alloc = 0; |
3325 | 109 } |
110 | |
111 | |
8772 | 112 #if (NGX_PCRE2) |
113 | |
114 ngx_int_t | |
115 ngx_regex_compile(ngx_regex_compile_t *rc) | |
116 { | |
117 int n, errcode; | |
118 char *p; | |
119 u_char errstr[128]; | |
120 size_t erroff; | |
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121 uint32_t options; |
8772 | 122 pcre2_code *re; |
123 ngx_regex_elt_t *elt; | |
124 pcre2_general_context *gctx; | |
125 pcre2_compile_context *cctx; | |
126 | |
127 if (ngx_regex_compile_context == NULL) { | |
128 /* | |
129 * Allocate a compile context if not yet allocated. This uses | |
130 * direct allocations from heap, so the result can be cached | |
131 * even at runtime. | |
132 */ | |
133 | |
134 ngx_regex_malloc_init(NULL); | |
135 | |
136 gctx = pcre2_general_context_create(ngx_regex_malloc, ngx_regex_free, | |
137 NULL); | |
138 if (gctx == NULL) { | |
139 ngx_regex_malloc_done(); | |
140 goto nomem; | |
141 } | |
142 | |
143 cctx = pcre2_compile_context_create(gctx); | |
144 if (cctx == NULL) { | |
145 pcre2_general_context_free(gctx); | |
146 ngx_regex_malloc_done(); | |
147 goto nomem; | |
148 } | |
149 | |
150 ngx_regex_compile_context = cctx; | |
151 | |
152 pcre2_general_context_free(gctx); | |
153 ngx_regex_malloc_done(); | |
154 } | |
155 | |
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156 options = 0; |
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157 |
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158 if (rc->options & NGX_REGEX_CASELESS) { |
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159 options |= PCRE2_CASELESS; |
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160 } |
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161 |
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162 if (rc->options & NGX_REGEX_MULTILINE) { |
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163 options |= PCRE2_MULTILINE; |
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164 } |
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165 |
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166 if (rc->options & ~(NGX_REGEX_CASELESS|NGX_REGEX_MULTILINE)) { |
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167 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, |
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168 "regex \"%V\" compilation failed: invalid options", |
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169 &rc->pattern) |
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170 - rc->err.data; |
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171 return NGX_ERROR; |
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172 } |
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173 |
8772 | 174 ngx_regex_malloc_init(rc->pool); |
175 | |
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176 re = pcre2_compile(rc->pattern.data, rc->pattern.len, options, |
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177 &errcode, &erroff, ngx_regex_compile_context); |
8772 | 178 |
179 /* ensure that there is no current pool */ | |
180 ngx_regex_malloc_done(); | |
181 | |
182 if (re == NULL) { | |
183 pcre2_get_error_message(errcode, errstr, 128); | |
184 | |
185 if ((size_t) erroff == rc->pattern.len) { | |
186 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, | |
187 "pcre2_compile() failed: %s in \"%V\"", | |
188 errstr, &rc->pattern) | |
189 - rc->err.data; | |
190 | |
191 } else { | |
192 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, | |
193 "pcre2_compile() failed: %s in \"%V\" at \"%s\"", | |
194 errstr, &rc->pattern, rc->pattern.data + erroff) | |
195 - rc->err.data; | |
196 } | |
197 | |
198 return NGX_ERROR; | |
199 } | |
200 | |
201 rc->regex = re; | |
202 | |
203 /* do not study at runtime */ | |
204 | |
205 if (ngx_regex_studies != NULL) { | |
206 elt = ngx_list_push(ngx_regex_studies); | |
207 if (elt == NULL) { | |
208 goto nomem; | |
209 } | |
210 | |
211 elt->regex = rc->regex; | |
212 elt->name = rc->pattern.data; | |
213 } | |
214 | |
215 n = pcre2_pattern_info(re, PCRE2_INFO_CAPTURECOUNT, &rc->captures); | |
216 if (n < 0) { | |
217 p = "pcre2_pattern_info(\"%V\", PCRE2_INFO_CAPTURECOUNT) failed: %d"; | |
218 goto failed; | |
219 } | |
220 | |
221 if (rc->captures == 0) { | |
222 return NGX_OK; | |
223 } | |
224 | |
225 n = pcre2_pattern_info(re, PCRE2_INFO_NAMECOUNT, &rc->named_captures); | |
226 if (n < 0) { | |
227 p = "pcre2_pattern_info(\"%V\", PCRE2_INFO_NAMECOUNT) failed: %d"; | |
228 goto failed; | |
229 } | |
230 | |
231 if (rc->named_captures == 0) { | |
232 return NGX_OK; | |
233 } | |
234 | |
235 n = pcre2_pattern_info(re, PCRE2_INFO_NAMEENTRYSIZE, &rc->name_size); | |
236 if (n < 0) { | |
237 p = "pcre2_pattern_info(\"%V\", PCRE2_INFO_NAMEENTRYSIZE) failed: %d"; | |
238 goto failed; | |
239 } | |
240 | |
241 n = pcre2_pattern_info(re, PCRE2_INFO_NAMETABLE, &rc->names); | |
242 if (n < 0) { | |
243 p = "pcre2_pattern_info(\"%V\", PCRE2_INFO_NAMETABLE) failed: %d"; | |
244 goto failed; | |
245 } | |
246 | |
247 return NGX_OK; | |
248 | |
249 failed: | |
250 | |
251 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, p, &rc->pattern, n) | |
252 - rc->err.data; | |
253 return NGX_ERROR; | |
254 | |
255 nomem: | |
256 | |
257 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, | |
258 "regex \"%V\" compilation failed: no memory", | |
259 &rc->pattern) | |
260 - rc->err.data; | |
261 return NGX_ERROR; | |
262 } | |
263 | |
264 #else | |
265 | |
3325 | 266 ngx_int_t |
267 ngx_regex_compile(ngx_regex_compile_t *rc) | |
268 { | |
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269 int n, erroff; |
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270 char *p; |
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271 pcre *re; |
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272 const char *errstr; |
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273 ngx_uint_t options; |
4388
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274 ngx_regex_elt_t *elt; |
3325 | 275 |
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276 options = 0; |
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277 |
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278 if (rc->options & NGX_REGEX_CASELESS) { |
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279 options |= PCRE_CASELESS; |
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280 } |
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281 |
8774
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282 if (rc->options & NGX_REGEX_MULTILINE) { |
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283 options |= PCRE_MULTILINE; |
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284 } |
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285 |
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286 if (rc->options & ~(NGX_REGEX_CASELESS|NGX_REGEX_MULTILINE)) { |
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287 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, |
fbbb5ce52995
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|
288 "regex \"%V\" compilation failed: invalid options", |
fbbb5ce52995
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|
289 &rc->pattern) |
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290 - rc->err.data; |
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|
291 return NGX_ERROR; |
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|
292 } |
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|
293 |
3325 | 294 ngx_regex_malloc_init(rc->pool); |
295 | |
8773
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296 re = pcre_compile((const char *) rc->pattern.data, (int) options, |
290
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216
diff
changeset
|
297 &errstr, &erroff, NULL); |
195
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298 |
3325 | 299 /* ensure that there is no current pool */ |
300 ngx_regex_malloc_done(); | |
301 | |
195
8dee38ea9117
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parents:
diff
changeset
|
302 if (re == NULL) { |
3325 | 303 if ((size_t) erroff == rc->pattern.len) { |
304 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, | |
305 "pcre_compile() failed: %s in \"%V\"", | |
306 errstr, &rc->pattern) | |
8770
060bf88d2473
Core: ngx_regex.c style cleanup.
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8769
diff
changeset
|
307 - rc->err.data; |
3325 | 308 |
195
8dee38ea9117
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parents:
diff
changeset
|
309 } else { |
3325 | 310 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, |
311 "pcre_compile() failed: %s in \"%V\" at \"%s\"", | |
312 errstr, &rc->pattern, rc->pattern.data + erroff) | |
8770
060bf88d2473
Core: ngx_regex.c style cleanup.
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8769
diff
changeset
|
313 - rc->err.data; |
195
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diff
changeset
|
314 } |
3325 | 315 |
316 return NGX_ERROR; | |
317 } | |
318 | |
4388
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff
changeset
|
319 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>
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diff
changeset
|
320 if (rc->regex == NULL) { |
5824
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
Maxim Dounin <mdounin@mdounin.ru>
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4638
diff
changeset
|
321 goto nomem; |
4388
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
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diff
changeset
|
322 } |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
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diff
changeset
|
323 |
4638
6e1a48bcf915
Fixed the ngx_regex.h header file compatibility with C++.
Valentin Bartenev <vbart@nginx.com>
parents:
4423
diff
changeset
|
324 rc->regex->code = re; |
4388
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
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4326
diff
changeset
|
325 |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
326 /* do not study at runtime */ |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
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4326
diff
changeset
|
327 |
8770
060bf88d2473
Core: ngx_regex.c style cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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8769
diff
changeset
|
328 if (ngx_regex_studies != NULL) { |
060bf88d2473
Core: ngx_regex.c style cleanup.
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8769
diff
changeset
|
329 elt = ngx_list_push(ngx_regex_studies); |
4388
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
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4326
diff
changeset
|
330 if (elt == NULL) { |
5824
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
Maxim Dounin <mdounin@mdounin.ru>
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4638
diff
changeset
|
331 goto nomem; |
4388
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
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parents:
4326
diff
changeset
|
332 } |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
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diff
changeset
|
333 |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
334 elt->regex = rc->regex; |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
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4326
diff
changeset
|
335 elt->name = rc->pattern.data; |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
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4326
diff
changeset
|
336 } |
3325 | 337 |
338 n = pcre_fullinfo(re, NULL, PCRE_INFO_CAPTURECOUNT, &rc->captures); | |
339 if (n < 0) { | |
340 p = "pcre_fullinfo(\"%V\", PCRE_INFO_CAPTURECOUNT) failed: %d"; | |
341 goto failed; | |
342 } | |
343 | |
344 if (rc->captures == 0) { | |
345 return NGX_OK; | |
195
8dee38ea9117
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diff
changeset
|
346 } |
8dee38ea9117
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diff
changeset
|
347 |
3325 | 348 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMECOUNT, &rc->named_captures); |
349 if (n < 0) { | |
350 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMECOUNT) failed: %d"; | |
351 goto failed; | |
352 } | |
353 | |
354 if (rc->named_captures == 0) { | |
355 return NGX_OK; | |
356 } | |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
357 |
3325 | 358 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &rc->name_size); |
359 if (n < 0) { | |
360 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMEENTRYSIZE) failed: %d"; | |
361 goto failed; | |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
362 } |
3325 | 363 |
364 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMETABLE, &rc->names); | |
365 if (n < 0) { | |
366 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMETABLE) failed: %d"; | |
367 goto failed; | |
368 } | |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
369 |
3325 | 370 return NGX_OK; |
371 | |
372 failed: | |
373 | |
374 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, p, &rc->pattern, n) | |
375 - rc->err.data; | |
5824
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4638
diff
changeset
|
376 return NGX_ERROR; |
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4638
diff
changeset
|
377 |
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4638
diff
changeset
|
378 nomem: |
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4638
diff
changeset
|
379 |
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4638
diff
changeset
|
380 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, |
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
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parents:
4638
diff
changeset
|
381 "regex \"%V\" compilation failed: no memory", |
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Core: ngx_regex_compile() error handling fixes.
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4638
diff
changeset
|
382 &rc->pattern) |
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
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diff
changeset
|
383 - rc->err.data; |
e7f6991eca47
Core: ngx_regex_compile() error handling fixes.
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parents:
4638
diff
changeset
|
384 return NGX_ERROR; |
195
8dee38ea9117
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diff
changeset
|
385 } |
8dee38ea9117
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diff
changeset
|
386 |
8772 | 387 #endif |
388 | |
389 | |
390 #if (NGX_PCRE2) | |
391 | |
392 ngx_int_t | |
393 ngx_regex_exec(ngx_regex_t *re, ngx_str_t *s, int *captures, ngx_uint_t size) | |
394 { | |
395 size_t *ov; | |
396 ngx_int_t rc; | |
397 ngx_uint_t n, i; | |
398 | |
399 /* | |
400 * The pcre2_match() function might allocate memory for backtracking | |
401 * frames, typical allocations are from 40k and above. So the allocator | |
402 * is configured to do direct allocations from heap during matching. | |
403 */ | |
404 | |
405 ngx_regex_malloc_init(NULL); | |
406 | |
407 if (ngx_regex_match_data == NULL | |
408 || size > ngx_regex_match_data_size) | |
409 { | |
410 /* | |
411 * Allocate a match data if not yet allocated or smaller than | |
412 * needed. | |
413 */ | |
414 | |
415 if (ngx_regex_match_data) { | |
416 pcre2_match_data_free(ngx_regex_match_data); | |
417 } | |
418 | |
419 ngx_regex_match_data_size = size; | |
420 ngx_regex_match_data = pcre2_match_data_create(size / 3, NULL); | |
421 | |
422 if (ngx_regex_match_data == NULL) { | |
423 rc = PCRE2_ERROR_NOMEMORY; | |
424 goto failed; | |
425 } | |
426 } | |
427 | |
428 rc = pcre2_match(re, s->data, s->len, 0, 0, ngx_regex_match_data, NULL); | |
429 | |
430 if (rc < 0) { | |
431 goto failed; | |
432 } | |
433 | |
434 n = pcre2_get_ovector_count(ngx_regex_match_data); | |
435 ov = pcre2_get_ovector_pointer(ngx_regex_match_data); | |
436 | |
437 if (n > size / 3) { | |
438 n = size / 3; | |
439 } | |
440 | |
441 for (i = 0; i < n; i++) { | |
442 captures[i * 2] = ov[i * 2]; | |
443 captures[i * 2 + 1] = ov[i * 2 + 1]; | |
444 } | |
445 | |
446 failed: | |
447 | |
448 ngx_regex_malloc_done(); | |
449 | |
450 return rc; | |
451 } | |
452 | |
8773
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453 #else |
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454 |
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455 ngx_int_t |
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456 ngx_regex_exec(ngx_regex_t *re, ngx_str_t *s, int *captures, ngx_uint_t size) |
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457 { |
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458 return pcre_exec(re->code, re->extra, (const char *) s->data, s->len, |
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459 0, 0, captures, size); |
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|
460 } |
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461 |
8772 | 462 #endif |
463 | |
195
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|
464 |
503 | 465 ngx_int_t |
1784 | 466 ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log) |
467 { | |
468 ngx_int_t n; | |
469 ngx_uint_t i; | |
470 ngx_regex_elt_t *re; | |
471 | |
472 re = a->elts; | |
473 | |
474 for (i = 0; i < a->nelts; i++) { | |
475 | |
476 n = ngx_regex_exec(re[i].regex, s, NULL, 0); | |
477 | |
478 if (n == NGX_REGEX_NO_MATCHED) { | |
479 continue; | |
480 } | |
481 | |
482 if (n < 0) { | |
483 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
3325 | 484 ngx_regex_exec_n " failed: %i on \"%V\" using \"%s\"", |
1784 | 485 n, s, re[i].name); |
486 return NGX_ERROR; | |
487 } | |
488 | |
489 /* match */ | |
490 | |
491 return NGX_OK; | |
492 } | |
493 | |
494 return NGX_DECLINED; | |
495 } | |
496 | |
497 | |
8772 | 498 #if (NGX_PCRE2) |
499 | |
500 static void * ngx_libc_cdecl | |
501 ngx_regex_malloc(size_t size, void *data) | |
502 { | |
503 if (ngx_regex_pool) { | |
504 return ngx_palloc(ngx_regex_pool, size); | |
505 } | |
506 | |
507 if (ngx_regex_direct_alloc) { | |
508 return ngx_alloc(size, ngx_cycle->log); | |
509 } | |
510 | |
511 return NULL; | |
512 } | |
513 | |
514 | |
515 static void ngx_libc_cdecl | |
516 ngx_regex_free(void *p, void *data) | |
517 { | |
518 if (ngx_regex_direct_alloc) { | |
519 ngx_free(p); | |
520 } | |
521 | |
522 return; | |
523 } | |
524 | |
525 #else | |
526 | |
503 | 527 static void * ngx_libc_cdecl |
528 ngx_regex_malloc(size_t size) | |
195
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529 { |
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530 if (ngx_regex_pool) { |
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531 return ngx_palloc(ngx_regex_pool, size); |
294
5cfd65b8b0a7
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290
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|
532 } |
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533 |
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534 return NULL; |
195
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535 } |
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536 |
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|
537 |
503 | 538 static void ngx_libc_cdecl |
539 ngx_regex_free(void *p) | |
195
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540 { |
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541 return; |
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542 } |
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543 |
8772 | 544 #endif |
545 | |
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546 |
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547 static void |
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548 ngx_regex_cleanup(void *data) |
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549 { |
8772 | 550 #if (NGX_PCRE2 || NGX_HAVE_PCRE_JIT) |
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551 ngx_regex_conf_t *rcf = data; |
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552 |
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553 ngx_uint_t i; |
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554 ngx_list_part_t *part; |
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555 ngx_regex_elt_t *elts; |
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Fixed memory leak on HUP signal when PCRE JIT was used.
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556 |
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557 part = &rcf->studies->part; |
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558 elts = part->elts; |
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559 |
7088 | 560 for (i = 0; /* void */ ; i++) { |
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561 |
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562 if (i >= part->nelts) { |
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Fixed memory leak on HUP signal when PCRE JIT was used.
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563 if (part->next == NULL) { |
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564 break; |
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565 } |
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566 |
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|
567 part = part->next; |
196c3dacff0d
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568 elts = part->elts; |
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569 i = 0; |
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570 } |
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Fixed memory leak on HUP signal when PCRE JIT was used.
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571 |
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Fixed memory leak on HUP signal when PCRE JIT was used.
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572 /* |
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573 * The PCRE JIT compiler uses mmap for its executable codes, so we |
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Fixed memory leak on HUP signal when PCRE JIT was used.
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574 * have to explicitly call the pcre_free_study() function to free |
8772 | 575 * this memory. In PCRE2, we call the pcre2_code_free() function |
576 * for the same reason. | |
4423
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577 */ |
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Fixed memory leak on HUP signal when PCRE JIT was used.
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|
578 |
8772 | 579 #if (NGX_PCRE2) |
580 pcre2_code_free(elts[i].regex); | |
581 #else | |
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|
582 if (elts[i].regex->extra != NULL) { |
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|
583 pcre_free_study(elts[i].regex->extra); |
4423
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|
584 } |
8772 | 585 #endif |
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586 } |
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|
587 #endif |
4423
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Fixed memory leak on HUP signal when PCRE JIT was used.
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|
588 |
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Core: fixed ngx_pcre_studies cleanup.
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589 /* |
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Core: fixed ngx_pcre_studies cleanup.
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|
590 * On configuration parsing errors ngx_regex_module_init() will not |
8770
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591 * be called. Make sure ngx_regex_studies is properly cleared anyway. |
8769
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|
592 */ |
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Core: fixed ngx_pcre_studies cleanup.
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593 |
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Core: ngx_regex.c style cleanup.
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|
594 ngx_regex_studies = NULL; |
8772 | 595 |
596 #if (NGX_PCRE2) | |
597 | |
598 /* | |
599 * Free compile context and match data. If needed at runtime by | |
600 * the new cycle, these will be re-allocated. | |
601 */ | |
602 | |
603 if (ngx_regex_compile_context) { | |
604 pcre2_compile_context_free(ngx_regex_compile_context); | |
605 ngx_regex_compile_context = NULL; | |
606 } | |
607 | |
608 if (ngx_regex_match_data) { | |
609 pcre2_match_data_free(ngx_regex_match_data); | |
610 ngx_regex_match_data = NULL; | |
611 ngx_regex_match_data_size = 0; | |
612 } | |
613 | |
614 #endif | |
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|
615 } |
2ca57257252d
Core: fixed ngx_pcre_studies cleanup.
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changeset
|
616 |
2ca57257252d
Core: fixed ngx_pcre_studies cleanup.
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changeset
|
617 |
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Core: fixed ngx_pcre_studies cleanup.
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|
618 static ngx_int_t |
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|
619 ngx_regex_module_init(ngx_cycle_t *cycle) |
2ca57257252d
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|
620 { |
2ca57257252d
Core: fixed ngx_pcre_studies cleanup.
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diff
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|
621 int opt; |
8772 | 622 #if !(NGX_PCRE2) |
8769
2ca57257252d
Core: fixed ngx_pcre_studies cleanup.
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|
623 const char *errstr; |
8772 | 624 #endif |
8769
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Core: fixed ngx_pcre_studies cleanup.
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|
625 ngx_uint_t i; |
2ca57257252d
Core: fixed ngx_pcre_studies cleanup.
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diff
changeset
|
626 ngx_list_part_t *part; |
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Core: fixed ngx_pcre_studies cleanup.
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627 ngx_regex_elt_t *elts; |
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Core: fixed ngx_pcre_studies cleanup.
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|
628 ngx_regex_conf_t *rcf; |
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|
629 |
2ca57257252d
Core: fixed ngx_pcre_studies cleanup.
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|
630 opt = 0; |
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|
631 |
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Core: fixed ngx_pcre_studies cleanup.
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|
632 rcf = (ngx_regex_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_regex_module); |
2ca57257252d
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|
633 |
8772 | 634 #if (NGX_PCRE2 || NGX_HAVE_PCRE_JIT) |
635 | |
8769
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|
636 if (rcf->pcre_jit) { |
8772 | 637 #if (NGX_PCRE2) |
638 opt = 1; | |
639 #else | |
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640 opt = PCRE_STUDY_JIT_COMPILE; |
8772 | 641 #endif |
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642 } |
8772 | 643 |
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644 #endif |
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|
645 |
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Added support for regex study and PCRE JIT (ticket #41) optimizations on
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|
646 ngx_regex_malloc_init(cycle->pool); |
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Added support for regex study and PCRE JIT (ticket #41) optimizations on
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|
647 |
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|
648 part = &rcf->studies->part; |
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|
649 elts = part->elts; |
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|
650 |
7088 | 651 for (i = 0; /* void */ ; i++) { |
4388
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Added support for regex study and PCRE JIT (ticket #41) optimizations on
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|
652 |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
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changeset
|
653 if (i >= part->nelts) { |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
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|
654 if (part->next == NULL) { |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
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|
655 break; |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
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656 } |
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657 |
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658 part = part->next; |
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659 elts = part->elts; |
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660 i = 0; |
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661 } |
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662 |
8772 | 663 #if (NGX_PCRE2) |
664 | |
665 if (opt) { | |
666 int n; | |
667 | |
668 n = pcre2_jit_compile(elts[i].regex, PCRE2_JIT_COMPLETE); | |
669 | |
670 if (n != 0) { | |
671 ngx_log_error(NGX_LOG_INFO, cycle->log, 0, | |
672 "pcre2_jit_compile() failed: %d in \"%s\", " | |
673 "ignored", | |
674 n, elts[i].name); | |
675 } | |
676 } | |
677 | |
678 #else | |
679 | |
4638
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680 elts[i].regex->extra = pcre_study(elts[i].regex->code, opt, &errstr); |
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681 |
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682 if (errstr != NULL) { |
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683 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
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684 "pcre_study() failed: %s in \"%s\"", |
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685 errstr, elts[i].name); |
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686 } |
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|
687 |
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688 #if (NGX_HAVE_PCRE_JIT) |
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689 if (opt & PCRE_STUDY_JIT_COMPILE) { |
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690 int jit, n; |
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691 |
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692 jit = 0; |
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693 n = pcre_fullinfo(elts[i].regex->code, elts[i].regex->extra, |
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694 PCRE_INFO_JIT, &jit); |
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695 |
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696 if (n != 0 || jit != 1) { |
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697 ngx_log_error(NGX_LOG_INFO, cycle->log, 0, |
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698 "JIT compiler does not support pattern: \"%s\"", |
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699 elts[i].name); |
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700 } |
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701 } |
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702 #endif |
8772 | 703 #endif |
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704 } |
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705 |
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706 ngx_regex_malloc_done(); |
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707 |
8770
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708 ngx_regex_studies = NULL; |
8772 | 709 #if (NGX_PCRE2) |
710 ngx_regex_compile_context = NULL; | |
711 #endif | |
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712 |
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713 return NGX_OK; |
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714 } |
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|
715 |
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|
716 |
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717 static void * |
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718 ngx_regex_create_conf(ngx_cycle_t *cycle) |
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719 { |
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720 ngx_regex_conf_t *rcf; |
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|
721 ngx_pool_cleanup_t *cln; |
4388
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722 |
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723 rcf = ngx_pcalloc(cycle->pool, sizeof(ngx_regex_conf_t)); |
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724 if (rcf == NULL) { |
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725 return NULL; |
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726 } |
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|
727 |
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728 rcf->pcre_jit = NGX_CONF_UNSET; |
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|
729 |
8769
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|
730 cln = ngx_pool_cleanup_add(cycle->pool, 0); |
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|
731 if (cln == NULL) { |
4388
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732 return NULL; |
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733 } |
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|
734 |
8769
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|
735 cln->handler = ngx_regex_cleanup; |
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|
736 cln->data = rcf; |
2ca57257252d
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|
737 |
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|
738 rcf->studies = ngx_list_create(cycle->pool, 8, sizeof(ngx_regex_elt_t)); |
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739 if (rcf->studies == NULL) { |
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|
740 return NULL; |
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|
741 } |
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|
742 |
8770
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|
743 ngx_regex_studies = rcf->studies; |
8769
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Core: fixed ngx_pcre_studies cleanup.
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|
744 |
4388
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745 return rcf; |
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746 } |
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|
747 |
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|
748 |
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|
749 static char * |
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750 ngx_regex_init_conf(ngx_cycle_t *cycle, void *conf) |
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751 { |
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752 ngx_regex_conf_t *rcf = conf; |
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|
753 |
005fc2d5e84f
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|
754 ngx_conf_init_value(rcf->pcre_jit, 0); |
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|
755 |
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|
756 return NGX_CONF_OK; |
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|
757 } |
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changeset
|
758 |
005fc2d5e84f
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changeset
|
759 |
005fc2d5e84f
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|
760 static char * |
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|
761 ngx_regex_pcre_jit(ngx_conf_t *cf, void *post, void *data) |
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|
762 { |
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|
763 ngx_flag_t *fp = data; |
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|
764 |
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|
765 if (*fp == 0) { |
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|
766 return NGX_CONF_OK; |
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767 } |
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|
768 |
8772 | 769 #if (NGX_PCRE2) |
770 { | |
771 int r; | |
772 uint32_t jit; | |
773 | |
774 jit = 0; | |
775 r = pcre2_config(PCRE2_CONFIG_JIT, &jit); | |
776 | |
777 if (r != 0 || jit != 1) { | |
778 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
779 "PCRE2 library does not support JIT"); | |
780 *fp = 0; | |
781 } | |
782 } | |
783 #elif (NGX_HAVE_PCRE_JIT) | |
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784 { |
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785 int jit, r; |
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|
786 |
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|
787 jit = 0; |
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|
788 r = pcre_config(PCRE_CONFIG_JIT, &jit); |
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|
789 |
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|
790 if (r != 0 || jit != 1) { |
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|
791 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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|
792 "PCRE library does not support JIT"); |
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|
793 *fp = 0; |
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|
794 } |
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|
795 } |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
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796 #else |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
797 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
4413
23ea4e72c85a
Fixed grammar in PCRE JIT error log message.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
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798 "nginx was built without PCRE JIT support"); |
4388
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
799 *fp = 0; |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
800 #endif |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
801 |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
802 return NGX_CONF_OK; |
005fc2d5e84f
Added support for regex study and PCRE JIT (ticket #41) optimizations on
Valentin Bartenev <vbart@nginx.com>
parents:
4326
diff
changeset
|
803 } |