Mercurial > hg > nginx
annotate src/core/ngx_string.h @ 3516:dd1570b6f237
ngx_str_set() and ngx_str_null()
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 14 May 2010 09:56:37 +0000 |
| parents | 098100f5f54b |
| children | 6802ba529ec4 |
| rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_STRING_H_INCLUDED_ |
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8 #define _NGX_STRING_H_INCLUDED_ |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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15 typedef struct { |
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16 size_t len; |
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17 u_char *data; |
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18 } ngx_str_t; |
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| 649 | 21 typedef struct { |
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22 ngx_str_t key; |
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23 ngx_str_t value; |
| 649 | 24 } ngx_keyval_t; |
| 25 | |
| 26 | |
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27 typedef struct { |
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28 unsigned len:28; |
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29 |
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30 unsigned valid:1; |
| 1565 | 31 unsigned no_cacheable:1; |
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32 unsigned not_found:1; |
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33 unsigned escape:1; |
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34 |
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35 u_char *data; |
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36 } ngx_variable_value_t; |
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38 |
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39 #define ngx_string(str) { sizeof(str) - 1, (u_char *) str } |
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40 #define ngx_null_string { 0, NULL } |
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41 #define ngx_str_set(str, text) \ |
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42 (str)->len = sizeof(text) - 1; (str)->data = (u_char *) text |
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43 #define ngx_str_null(str) (str)->len = 0; (str)->data = NULL |
| 477 | 44 |
| 45 | |
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46 #define ngx_tolower(c) (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c) |
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47 #define ngx_toupper(c) (u_char) ((c >= 'a' && c <= 'z') ? (c & ~0x20) : c) |
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48 |
| 2135 | 49 void ngx_strlow(u_char *dst, u_char *src, size_t n); |
| 50 | |
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51 |
| 461 | 52 #define ngx_strncmp(s1, s2, n) strncmp((const char *) s1, (const char *) s2, n) |
| 53 | |
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54 |
| 573 | 55 /* msvc and icc7 compile strcmp() to inline loop */ |
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56 #define ngx_strcmp(s1, s2) strcmp((const char *) s1, (const char *) s2) |
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57 |
| 461 | 58 |
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59 #define ngx_strstr(s1, s2) strstr((const char *) s1, (const char *) s2) |
| 2201 | 60 #define ngx_strlen(s) strlen((const char *) s) |
| 61 | |
| 1157 | 62 #define ngx_strchr(s1, c) strchr((const char *) s1, (int) c) |
| 2201 | 63 |
| 64 static ngx_inline u_char * | |
| 65 ngx_strlchr(u_char *p, u_char *last, u_char c) | |
| 66 { | |
| 67 while (p < last) { | |
| 68 | |
| 69 if (*p == c) { | |
| 70 return p; | |
| 71 } | |
| 72 | |
| 73 p++; | |
| 74 } | |
| 75 | |
| 76 return NULL; | |
| 77 } | |
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| 461 | 79 |
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80 /* |
| 573 | 81 * msvc and icc7 compile memset() to the inline "rep stos" |
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82 * while ZeroMemory() and bzero() are the calls. |
| 573 | 83 * icc7 may also inline several mov's of a zeroed register for small blocks. |
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84 */ |
| 515 | 85 #define ngx_memzero(buf, n) (void) memset(buf, 0, n) |
| 86 #define ngx_memset(buf, c, n) (void) memset(buf, c, n) | |
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87 |
| 461 | 88 |
| 583 | 89 #if (NGX_MEMCPY_LIMIT) |
| 90 | |
| 91 void *ngx_memcpy(void *dst, void *src, size_t n); | |
| 92 #define ngx_cpymem(dst, src, n) ((u_char *) ngx_memcpy(dst, src, n)) + (n) | |
| 93 | |
| 94 #else | |
| 95 | |
| 573 | 96 /* |
| 97 * gcc3, msvc, and icc7 compile memcpy() to the inline "rep movs". | |
| 98 * gcc3 compiles memcpy(d, s, 4) to the inline "mov"es. | |
| 99 * icc8 compile memcpy(d, s, 4) to the inline "mov"es or XMM moves. | |
| 100 */ | |
| 515 | 101 #define ngx_memcpy(dst, src, n) (void) memcpy(dst, src, n) |
| 479 | 102 #define ngx_cpymem(dst, src, n) ((u_char *) memcpy(dst, src, n)) + (n) |
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103 |
| 583 | 104 #endif |
| 105 | |
| 461 | 106 |
| 573 | 107 #if ( __INTEL_COMPILER >= 800 ) |
| 108 | |
| 109 /* | |
| 110 * the simple inline cycle copies the variable length strings up to 16 | |
| 111 * bytes faster than icc8 autodetecting _intel_fast_memcpy() | |
| 112 */ | |
| 113 | |
| 114 static ngx_inline u_char * | |
| 115 ngx_copy(u_char *dst, u_char *src, size_t len) | |
| 116 { | |
| 117 if (len < 17) { | |
| 118 | |
| 119 while (len) { | |
| 120 *dst++ = *src++; | |
| 121 len--; | |
| 122 } | |
| 123 | |
| 124 return dst; | |
| 125 | |
| 126 } else { | |
| 127 return ngx_cpymem(dst, src, len); | |
| 128 } | |
| 129 } | |
| 130 | |
| 131 #else | |
| 132 | |
| 133 #define ngx_copy ngx_cpymem | |
| 134 | |
| 135 #endif | |
| 136 | |
| 137 | |
| 138 /* msvc and icc7 compile memcmp() to the inline loop */ | |
| 1648 | 139 #define ngx_memcmp(s1, s2, n) memcmp((const char *) s1, (const char *) s2, n) |
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| 461 | 141 |
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142 u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n); |
| 485 | 143 u_char *ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src); |
| 503 | 144 u_char * ngx_cdecl ngx_sprintf(u_char *buf, const char *fmt, ...); |
| 145 u_char * ngx_cdecl ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...); | |
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146 u_char * ngx_cdecl ngx_slprintf(u_char *buf, u_char *last, const char *fmt, |
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147 ...); |
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148 u_char *ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args); |
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149 #define ngx_vsnprintf(buf, max, fmt, args) \ |
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150 ngx_vslprintf(buf, buf + (max), fmt, args) |
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152 ngx_int_t ngx_strcasecmp(u_char *s1, u_char *s2); |
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153 ngx_int_t ngx_strncasecmp(u_char *s1, u_char *s2, size_t n); |
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154 |
| 1552 | 155 u_char *ngx_strnstr(u_char *s1, char *s2, size_t n); |
| 156 | |
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157 u_char *ngx_strstrn(u_char *s1, char *s2, size_t n); |
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158 u_char *ngx_strcasestrn(u_char *s1, char *s2, size_t n); |
| 2668 | 159 u_char *ngx_strlcasestrn(u_char *s1, u_char *last, u_char *s2, size_t n); |
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161 ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n); |
| 455 | 162 ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n); |
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163 ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2); |
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164 ngx_int_t ngx_dns_strcmp(u_char *s1, u_char *s2); |
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166 ngx_int_t ngx_atoi(u_char *line, size_t n); |
| 3512 | 167 ngx_int_t ngx_atofp(u_char *line, size_t n, size_t point); |
| 501 | 168 ssize_t ngx_atosz(u_char *line, size_t n); |
| 169 off_t ngx_atoof(u_char *line, size_t n); | |
| 170 time_t ngx_atotm(u_char *line, size_t n); | |
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171 ngx_int_t ngx_hextoi(u_char *line, size_t n); |
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172 |
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173 u_char *ngx_hex_dump(u_char *dst, u_char *src, size_t len); |
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176 #define ngx_base64_encoded_length(len) (((len + 2) / 3) * 4) |
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177 #define ngx_base64_decoded_length(len) (((len + 3) / 4) * 3) |
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nginx-0.0.10-2004-08-29-07:55:41 import
Igor Sysoev <igor@sysoev.ru>
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178 |
| 452 | 179 void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src); |
| 180 ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src); | |
| 461 | 181 |
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182 uint32_t ngx_utf8_decode(u_char **p, size_t n); |
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183 size_t ngx_utf8_length(u_char *p, size_t n); |
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184 u_char *ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len); |
| 527 | 185 |
| 461 | 186 |
| 1593 | 187 #define NGX_ESCAPE_URI 0 |
| 188 #define NGX_ESCAPE_ARGS 1 | |
| 189 #define NGX_ESCAPE_HTML 2 | |
| 190 #define NGX_ESCAPE_REFRESH 3 | |
| 191 #define NGX_ESCAPE_MEMCACHED 4 | |
| 192 #define NGX_ESCAPE_MAIL_AUTH 5 | |
| 601 | 193 |
| 1593 | 194 #define NGX_UNESCAPE_URI 1 |
| 195 #define NGX_UNESCAPE_REDIRECT 2 | |
| 461 | 196 |
| 485 | 197 uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size, |
| 493 | 198 ngx_uint_t type); |
| 601 | 199 void ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type); |
| 1544 | 200 uintptr_t ngx_escape_html(u_char *dst, u_char *src, size_t size); |
| 201 | |
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nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
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338
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202 |
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nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
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203 |
| 1208 | 204 void ngx_sort(void *base, size_t n, size_t size, |
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205 ngx_int_t (*cmp)(const void *, const void *)); |
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206 #define ngx_qsort qsort |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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207 |
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nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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208 |
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209 #define ngx_value_helper(n) #n |
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210 #define ngx_value(n) ngx_value_helper(n) |
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nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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211 |
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nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
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212 |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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213 #endif /* _NGX_STRING_H_INCLUDED_ */ |