Mercurial > hg > nginx-quic
annotate src/core/ngx_regex.c @ 3319:be47fe127f8c
ngx_regex_exec() calling optimiztion:
*) change NGX_REGEX_NO_MATCHED to PCRE_ERROR_NOMATCH
*) declare ngx_regex_exec() as #define
*) optimize SSI regex a little
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 13 Nov 2009 20:41:41 +0000 |
parents | 2a92804f4109 |
children | 42c16d8bddbe |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 |
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10 |
503 | 11 static void * ngx_libc_cdecl ngx_regex_malloc(size_t size); |
12 static void ngx_libc_cdecl ngx_regex_free(void *p); | |
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13 |
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14 |
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15 static ngx_pool_t *ngx_pcre_pool; |
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16 |
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17 |
503 | 18 void |
19 ngx_regex_init(void) | |
195
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20 { |
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21 pcre_malloc = ngx_regex_malloc; |
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22 pcre_free = ngx_regex_free; |
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23 } |
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24 |
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25 |
503 | 26 ngx_regex_t * |
27 ngx_regex_compile(ngx_str_t *pattern, ngx_int_t options, ngx_pool_t *pool, | |
28 ngx_str_t *err) | |
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29 { |
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30 int erroff; |
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31 const char *errstr; |
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32 ngx_regex_t *re; |
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33 #if (NGX_THREADS) |
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34 ngx_core_tls_t *tls; |
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35 |
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36 #if (NGX_SUPPRESS_WARN) |
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37 tls = NULL; |
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38 #endif |
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39 |
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40 if (ngx_threaded) { |
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41 tls = ngx_thread_get_tls(ngx_core_tls_key); |
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42 tls->pool = pool; |
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43 } else { |
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44 ngx_pcre_pool = pool; |
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45 } |
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46 |
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47 #else |
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48 |
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49 ngx_pcre_pool = pool; |
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50 |
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51 #endif |
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52 |
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53 re = pcre_compile((const char *) pattern->data, (int) options, |
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54 &errstr, &erroff, NULL); |
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55 |
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56 if (re == NULL) { |
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57 if ((size_t) erroff == pattern->len) { |
461 | 58 ngx_snprintf(err->data, err->len - 1, |
479 | 59 "pcre_compile() failed: %s in \"%s\"%Z", |
195
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60 errstr, pattern->data); |
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61 } else { |
461 | 62 ngx_snprintf(err->data, err->len - 1, |
479 | 63 "pcre_compile() failed: %s in \"%s\" at \"%s\"%Z", |
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64 errstr, pattern->data, pattern->data + erroff); |
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65 } |
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66 } |
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67 |
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68 /* ensure that there is no current pool */ |
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69 |
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70 #if (NGX_THREADS) |
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71 if (ngx_threaded) { |
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72 tls->pool = NULL; |
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73 } else { |
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74 ngx_pcre_pool = NULL; |
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75 } |
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76 #else |
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77 ngx_pcre_pool = NULL; |
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78 #endif |
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79 |
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80 return re; |
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81 } |
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82 |
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83 |
503 | 84 ngx_int_t |
85 ngx_regex_capture_count(ngx_regex_t *re) | |
481 | 86 { |
87 int rc, n; | |
88 | |
89 n = 0; | |
90 | |
91 rc = pcre_fullinfo(re, NULL, PCRE_INFO_CAPTURECOUNT, &n); | |
92 | |
501 | 93 if (rc < 0) { |
94 return (ngx_int_t) rc; | |
95 } | |
96 | |
97 return (ngx_int_t) n; | |
481 | 98 } |
99 | |
100 | |
503 | 101 ngx_int_t |
1784 | 102 ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log) |
103 { | |
104 ngx_int_t n; | |
105 ngx_uint_t i; | |
106 ngx_regex_elt_t *re; | |
107 | |
108 re = a->elts; | |
109 | |
110 for (i = 0; i < a->nelts; i++) { | |
111 | |
112 n = ngx_regex_exec(re[i].regex, s, NULL, 0); | |
113 | |
114 if (n == NGX_REGEX_NO_MATCHED) { | |
115 continue; | |
116 } | |
117 | |
118 if (n < 0) { | |
119 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
120 ngx_regex_exec_n " failed: %d on \"%V\" using \"%s\"", | |
121 n, s, re[i].name); | |
122 return NGX_ERROR; | |
123 } | |
124 | |
125 /* match */ | |
126 | |
127 return NGX_OK; | |
128 } | |
129 | |
130 return NGX_DECLINED; | |
131 } | |
132 | |
133 | |
503 | 134 static void * ngx_libc_cdecl |
135 ngx_regex_malloc(size_t size) | |
195
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136 { |
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137 ngx_pool_t *pool; |
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138 #if (NGX_THREADS) |
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139 ngx_core_tls_t *tls; |
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140 |
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141 if (ngx_threaded) { |
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142 tls = ngx_thread_get_tls(ngx_core_tls_key); |
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143 pool = tls->pool; |
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144 } else { |
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145 pool = ngx_pcre_pool; |
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146 } |
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147 #else |
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148 pool = ngx_pcre_pool; |
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149 #endif |
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150 |
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151 if (pool) { |
2049 | 152 return ngx_palloc(pool, size); |
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153 } |
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154 |
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155 return NULL; |
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156 } |
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157 |
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158 |
503 | 159 static void ngx_libc_cdecl |
160 ngx_regex_free(void *p) | |
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161 { |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 return; |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
163 } |