Mercurial > hg > nginx
annotate src/core/ngx_string.h @ 1601:cba2bb1796e4
change emerg to a warn for absolute index
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 23 Oct 2007 14:15:06 +0000 |
parents | bef67c6abbe7 |
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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:29; |
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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 |
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34 u_char *data; |
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35 } ngx_variable_value_t; |
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37 |
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38 #define ngx_string(str) { sizeof(str) - 1, (u_char *) str } |
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39 #define ngx_null_string { 0, NULL } |
477 | 40 |
41 | |
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42 #define ngx_tolower(c) (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c) |
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43 #define ngx_toupper(c) (u_char) ((c >= 'a' && c <= 'z') ? (c & ~0x20) : c) |
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461 | 46 #define ngx_strncmp(s1, s2, n) strncmp((const char *) s1, (const char *) s2, n) |
47 | |
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573 | 49 /* msvc and icc7 compile strcmp() to inline loop */ |
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50 #define ngx_strcmp(s1, s2) strcmp((const char *) s1, (const char *) s2) |
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53 #define ngx_strstr(s1, s2) strstr((const char *) s1, (const char *) s2) |
1157 | 54 #define ngx_strchr(s1, c) strchr((const char *) s1, (int) c) |
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55 #define ngx_strlen(s) strlen((const char *) s) |
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58 /* |
573 | 59 * msvc and icc7 compile memset() to the inline "rep stos" |
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60 * while ZeroMemory() and bzero() are the calls. |
573 | 61 * icc7 may also inline several mov's of a zeroed register for small blocks. |
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62 */ |
515 | 63 #define ngx_memzero(buf, n) (void) memset(buf, 0, n) |
64 #define ngx_memset(buf, c, n) (void) memset(buf, c, n) | |
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65 |
461 | 66 |
583 | 67 #if (NGX_MEMCPY_LIMIT) |
68 | |
69 void *ngx_memcpy(void *dst, void *src, size_t n); | |
70 #define ngx_cpymem(dst, src, n) ((u_char *) ngx_memcpy(dst, src, n)) + (n) | |
71 | |
72 #else | |
73 | |
573 | 74 /* |
75 * gcc3, msvc, and icc7 compile memcpy() to the inline "rep movs". | |
76 * gcc3 compiles memcpy(d, s, 4) to the inline "mov"es. | |
77 * icc8 compile memcpy(d, s, 4) to the inline "mov"es or XMM moves. | |
78 */ | |
515 | 79 #define ngx_memcpy(dst, src, n) (void) memcpy(dst, src, n) |
479 | 80 #define ngx_cpymem(dst, src, n) ((u_char *) memcpy(dst, src, n)) + (n) |
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81 |
583 | 82 #endif |
83 | |
461 | 84 |
573 | 85 #if ( __INTEL_COMPILER >= 800 ) |
86 | |
87 /* | |
88 * the simple inline cycle copies the variable length strings up to 16 | |
89 * bytes faster than icc8 autodetecting _intel_fast_memcpy() | |
90 */ | |
91 | |
92 static ngx_inline u_char * | |
93 ngx_copy(u_char *dst, u_char *src, size_t len) | |
94 { | |
95 if (len < 17) { | |
96 | |
97 while (len) { | |
98 *dst++ = *src++; | |
99 len--; | |
100 } | |
101 | |
102 return dst; | |
103 | |
104 } else { | |
105 return ngx_cpymem(dst, src, len); | |
106 } | |
107 } | |
108 | |
109 #else | |
110 | |
111 #define ngx_copy ngx_cpymem | |
112 | |
113 #endif | |
114 | |
115 | |
116 /* msvc and icc7 compile memcmp() to the inline loop */ | |
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117 #define ngx_memcmp memcmp |
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461 | 119 |
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120 u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n); |
485 | 121 u_char *ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src); |
503 | 122 u_char * ngx_cdecl ngx_sprintf(u_char *buf, const char *fmt, ...); |
123 u_char * ngx_cdecl ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...); | |
461 | 124 u_char *ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args); |
455 | 125 |
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126 ngx_int_t ngx_strcasecmp(u_char *s1, u_char *s2); |
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127 ngx_int_t ngx_strncasecmp(u_char *s1, u_char *s2, size_t n); |
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128 |
1552 | 129 u_char *ngx_strnstr(u_char *s1, char *s2, size_t n); |
130 | |
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131 u_char *ngx_strstrn(u_char *s1, char *s2, size_t n); |
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132 u_char *ngx_strcasestrn(u_char *s1, char *s2, size_t n); |
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134 ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n); |
455 | 135 ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n); |
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136 ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2); |
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138 ngx_int_t ngx_atoi(u_char *line, size_t n); |
501 | 139 ssize_t ngx_atosz(u_char *line, size_t n); |
140 off_t ngx_atoof(u_char *line, size_t n); | |
141 time_t ngx_atotm(u_char *line, size_t n); | |
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142 ngx_int_t ngx_hextoi(u_char *line, size_t n); |
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144 void ngx_md5_text(u_char *text, u_char *md5); |
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147 #define ngx_base64_encoded_length(len) (((len + 2) / 3) * 4) |
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148 #define ngx_base64_decoded_length(len) (((len + 3) / 4) * 3) |
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149 |
452 | 150 void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src); |
151 ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src); | |
461 | 152 |
657 | 153 uint32_t ngx_utf_decode(u_char **p, size_t n); |
154 size_t ngx_utf_length(u_char *p, size_t n); | |
1205 | 155 u_char *ngx_utf_cpystrn(u_char *dst, u_char *src, size_t n); |
527 | 156 |
461 | 157 |
1593 | 158 #define NGX_ESCAPE_URI 0 |
159 #define NGX_ESCAPE_ARGS 1 | |
160 #define NGX_ESCAPE_HTML 2 | |
161 #define NGX_ESCAPE_REFRESH 3 | |
162 #define NGX_ESCAPE_MEMCACHED 4 | |
163 #define NGX_ESCAPE_MAIL_AUTH 5 | |
601 | 164 |
1593 | 165 #define NGX_UNESCAPE_URI 1 |
166 #define NGX_UNESCAPE_REDIRECT 2 | |
461 | 167 |
485 | 168 uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size, |
493 | 169 ngx_uint_t type); |
601 | 170 void ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type); |
1544 | 171 uintptr_t ngx_escape_html(u_char *dst, u_char *src, size_t size); |
172 | |
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1208 | 175 void ngx_sort(void *base, size_t n, size_t size, |
176 int (*cmp)(const void *, const void *)); | |
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177 #define ngx_qsort qsort |
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180 #define ngx_value_helper(n) #n |
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181 #define ngx_value(n) ngx_value_helper(n) |
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184 #endif /* _NGX_STRING_H_INCLUDED_ */ |