Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_files.h @ 5361:7094d6da2806
Win32: $request_time fixed.
On win32, time_t is 64 bits wide by default, and passing an ngx_msec_int_t
argument for %T format specifier doesn't work. This doesn't manifest itself
on other platforms as time_t and ngx_msec_int_t are usually of the same size.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 04 Sep 2013 20:48:30 +0400 |
parents | acd51b0f6fd4 |
children | 72e31d88defa |
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
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8 #ifndef _NGX_FILES_H_INCLUDED_ |
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9 #define _NGX_FILES_H_INCLUDED_ |
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11 |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 |
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15 |
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16 typedef int ngx_fd_t; |
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17 typedef struct stat ngx_file_info_t; |
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18 typedef ino_t ngx_file_uniq_t; |
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19 |
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20 |
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21 typedef struct { |
3651 | 22 u_char *name; |
23 size_t size; | |
24 void *addr; | |
25 ngx_fd_t fd; | |
26 ngx_log_t *log; | |
27 } ngx_file_mapping_t; | |
28 | |
29 | |
30 typedef struct { | |
2933 | 31 DIR *dir; |
32 struct dirent *de; | |
33 struct stat info; | |
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34 |
2933 | 35 unsigned type:8; |
36 unsigned valid_info:1; | |
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37 } ngx_dir_t; |
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38 |
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39 |
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40 typedef struct { |
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41 size_t n; |
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42 glob_t pglob; |
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43 u_char *pattern; |
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44 ngx_log_t *log; |
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45 ngx_uint_t test; |
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46 } ngx_glob_t; |
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47 |
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48 |
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49 #define NGX_INVALID_FILE -1 |
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50 #define NGX_FILE_ERROR -1 |
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51 |
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52 |
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53 |
1975 | 54 #ifdef __CYGWIN__ |
55 | |
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56 #define NGX_HAVE_CASELESS_FILESYSTEM 1 |
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57 |
1975 | 58 #define ngx_open_file(name, mode, create, access) \ |
59 open((const char *) name, mode|create|O_BINARY, access) | |
60 | |
61 #else | |
62 | |
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63 #define ngx_open_file(name, mode, create, access) \ |
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64 open((const char *) name, mode|create, access) |
1975 | 65 |
66 #endif | |
67 | |
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68 #define ngx_open_file_n "open()" |
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69 |
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70 #define NGX_FILE_RDONLY O_RDONLY |
1054 | 71 #define NGX_FILE_WRONLY O_WRONLY |
99
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72 #define NGX_FILE_RDWR O_RDWR |
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73 #define NGX_FILE_CREATE_OR_OPEN O_CREAT |
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74 #define NGX_FILE_OPEN 0 |
5262 | 75 #define NGX_FILE_TRUNCATE (O_CREAT|O_TRUNC) |
76 #define NGX_FILE_APPEND (O_WRONLY|O_APPEND) | |
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77 #define NGX_FILE_NONBLOCK O_NONBLOCK |
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78 |
4475 | 79 #if (NGX_HAVE_OPENAT) |
80 #define NGX_FILE_NOFOLLOW O_NOFOLLOW | |
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81 |
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82 #if defined(O_DIRECTORY) |
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83 #define NGX_FILE_DIRECTORY O_DIRECTORY |
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84 #else |
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85 #define NGX_FILE_DIRECTORY 0 |
4475 | 86 #endif |
87 | |
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88 #if defined(O_SEARCH) |
5262 | 89 #define NGX_FILE_SEARCH (O_SEARCH|NGX_FILE_DIRECTORY) |
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90 |
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91 #elif defined(O_EXEC) |
5262 | 92 #define NGX_FILE_SEARCH (O_EXEC|NGX_FILE_DIRECTORY) |
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93 |
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94 #elif (NGX_HAVE_O_PATH) |
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95 #define NGX_FILE_SEARCH (O_PATH|O_RDONLY|NGX_FILE_DIRECTORY) |
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96 |
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97 #else |
5262 | 98 #define NGX_FILE_SEARCH (O_RDONLY|NGX_FILE_DIRECTORY) |
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99 #endif |
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100 |
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101 #endif /* NGX_HAVE_OPENAT */ |
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102 |
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103 #define NGX_FILE_DEFAULT_ACCESS 0644 |
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104 #define NGX_FILE_OWNER_ACCESS 0600 |
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105 |
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106 |
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107 #define ngx_close_file close |
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108 #define ngx_close_file_n "close()" |
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109 |
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110 |
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111 #define ngx_delete_file(name) unlink((const char *) name) |
185
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112 #define ngx_delete_file_n "unlink()" |
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113 |
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114 |
633 | 115 ngx_fd_t ngx_open_tempfile(u_char *name, ngx_uint_t persistent, |
1046 | 116 ngx_uint_t access); |
74
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117 #define ngx_open_tempfile_n "open()" |
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118 |
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119 |
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120 ssize_t ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset); |
2180 | 121 #if (NGX_HAVE_PREAD) |
122 #define ngx_read_file_n "pread()" | |
123 #else | |
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124 #define ngx_read_file_n "read()" |
2180 | 125 #endif |
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126 |
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127 ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, |
497 | 128 off_t offset); |
74
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129 |
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130 ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *ce, |
497 | 131 off_t offset, ngx_pool_t *pool); |
74
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132 |
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133 |
1055 | 134 #define ngx_read_fd read |
135 #define ngx_read_fd_n "read()" | |
136 | |
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137 /* |
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138 * we use inlined function instead of simple #define |
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139 * because glibc 2.3 sets warn_unused_result attribute for write() |
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140 * and in this case gcc 4.3 ignores (void) cast |
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141 */ |
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142 static ngx_inline ssize_t |
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143 ngx_write_fd(ngx_fd_t fd, void *buf, size_t n) |
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144 { |
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145 return write(fd, buf, n); |
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146 } |
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147 |
1055 | 148 #define ngx_write_fd_n "write()" |
149 | |
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150 |
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151 #define ngx_write_console ngx_write_fd |
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152 |
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153 |
571 | 154 #define ngx_linefeed(p) *p++ = LF; |
155 #define NGX_LINEFEED_SIZE 1 | |
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156 #define NGX_LINEFEED "\x0a" |
571 | 157 |
158 | |
633 | 159 #define ngx_rename_file(o, n) rename((const char *) o, (const char *) n) |
681 | 160 #define ngx_rename_file_n "rename()" |
170
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161 |
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162 |
669 | 163 #define ngx_change_file_access(n, a) chmod((const char *) n, a) |
681 | 164 #define ngx_change_file_access_n "chmod()" |
165 | |
166 | |
167 ngx_int_t ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s); | |
168 #define ngx_set_file_time_n "utimes()" | |
669 | 169 |
170 | |
290
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171 #define ngx_file_info(file, sb) stat((const char *) file, sb) |
186
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172 #define ngx_file_info_n "stat()" |
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173 |
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174 #define ngx_fd_info(fd, sb) fstat(fd, sb) |
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175 #define ngx_fd_info_n "fstat()" |
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176 |
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177 #define ngx_link_info(file, sb) lstat((const char *) file, sb) |
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178 #define ngx_link_info_n "lstat()" |
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179 |
186
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180 #define ngx_is_dir(sb) (S_ISDIR((sb)->st_mode)) |
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181 #define ngx_is_file(sb) (S_ISREG((sb)->st_mode)) |
669 | 182 #define ngx_is_link(sb) (S_ISLNK((sb)->st_mode)) |
3281 | 183 #define ngx_is_exec(sb) (((sb)->st_mode & S_IXUSR) == S_IXUSR) |
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184 #define ngx_file_access(sb) ((sb)->st_mode & 0777) |
186
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185 #define ngx_file_size(sb) (sb)->st_size |
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186 #define ngx_file_fs_size(sb) ngx_max((sb)->st_size, (sb)->st_blocks * 512) |
186
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187 #define ngx_file_mtime(sb) (sb)->st_mtime |
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188 #define ngx_file_uniq(sb) (sb)->st_ino |
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189 |
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190 |
3651 | 191 ngx_int_t ngx_create_file_mapping(ngx_file_mapping_t *fm); |
192 void ngx_close_file_mapping(ngx_file_mapping_t *fm); | |
193 | |
194 | |
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195 #if (NGX_HAVE_CASELESS_FILESYSTEM) |
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196 |
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197 #define ngx_filename_cmp(s1, s2, n) strncasecmp((char *) s1, (char *) s2, n) |
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198 |
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199 #else |
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200 |
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201 #define ngx_filename_cmp ngx_memcmp |
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202 |
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203 #endif |
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204 |
336
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205 |
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206 #define ngx_realpath(p, r) (u_char *) realpath((char *) p, (char *) r) |
2259 | 207 #define ngx_realpath_n "realpath()" |
2758 | 208 #define ngx_getcwd(buf, size) (getcwd((char *) buf, size) != NULL) |
336
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209 #define ngx_getcwd_n "getcwd()" |
2744 | 210 #define ngx_path_separator(c) ((c) == '/') |
211 | |
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212 |
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213 #if defined(PATH_MAX) |
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214 |
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215 #define NGX_HAVE_MAX_PATH 1 |
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216 #define NGX_MAX_PATH PATH_MAX |
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217 |
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218 #else |
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219 |
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220 #define NGX_MAX_PATH 4096 |
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221 |
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222 #endif |
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223 |
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224 |
186
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225 #define NGX_DIR_MASK_LEN 0 |
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226 |
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227 |
467 | 228 ngx_int_t ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir); |
185
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229 #define ngx_open_dir_n "opendir()" |
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230 |
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231 |
186
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232 #define ngx_close_dir(d) closedir((d)->dir) |
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233 #define ngx_close_dir_n "closedir()" |
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234 |
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235 |
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236 ngx_int_t ngx_read_dir(ngx_dir_t *dir); |
185
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237 #define ngx_read_dir_n "readdir()" |
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238 |
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239 |
669 | 240 #define ngx_create_dir(name, access) mkdir((const char *) name, access) |
186
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241 #define ngx_create_dir_n "mkdir()" |
74
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242 |
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243 |
290
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244 #define ngx_delete_dir(name) rmdir((const char *) name) |
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245 #define ngx_delete_dir_n "rmdir()" |
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246 |
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247 |
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248 #define ngx_dir_access(a) (a | (a & 0444) >> 2) |
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249 |
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250 |
457 | 251 #define ngx_de_name(dir) ((u_char *) (dir)->de->d_name) |
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252 #if (NGX_HAVE_D_NAMLEN) |
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253 #define ngx_de_namelen(dir) (dir)->de->d_namlen |
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254 #else |
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255 #define ngx_de_namelen(dir) ngx_strlen((dir)->de->d_name) |
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256 #endif |
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257 |
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258 static ngx_inline ngx_int_t |
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259 ngx_de_info(u_char *name, ngx_dir_t *dir) |
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260 { |
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261 dir->type = 0; |
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262 return stat((const char *) name, &dir->info); |
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263 } |
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264 |
186
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265 #define ngx_de_info_n "stat()" |
497 | 266 #define ngx_de_link_info(name, dir) lstat((const char *) name, &(dir)->info) |
267 #define ngx_de_link_info_n "lstat()" | |
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268 |
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269 #if (NGX_HAVE_D_TYPE) |
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270 |
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271 /* |
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272 * some file systems (e.g. XFS on Linux and CD9660 on FreeBSD) |
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273 * do not set dirent.d_type |
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274 */ |
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275 |
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276 #define ngx_de_is_dir(dir) \ |
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277 (((dir)->type) ? ((dir)->type == DT_DIR) : (S_ISDIR((dir)->info.st_mode))) |
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278 #define ngx_de_is_file(dir) \ |
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279 (((dir)->type) ? ((dir)->type == DT_REG) : (S_ISREG((dir)->info.st_mode))) |
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280 #define ngx_de_is_link(dir) \ |
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281 (((dir)->type) ? ((dir)->type == DT_LNK) : (S_ISLNK((dir)->info.st_mode))) |
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282 |
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283 #else |
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284 |
186
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285 #define ngx_de_is_dir(dir) (S_ISDIR((dir)->info.st_mode)) |
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286 #define ngx_de_is_file(dir) (S_ISREG((dir)->info.st_mode)) |
497 | 287 #define ngx_de_is_link(dir) (S_ISLNK((dir)->info.st_mode)) |
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288 |
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289 #endif |
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290 |
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291 #define ngx_de_access(dir) (((dir)->info.st_mode) & 0777) |
186
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292 #define ngx_de_size(dir) (dir)->info.st_size |
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293 #define ngx_de_fs_size(dir) \ |
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294 ngx_max((dir)->info.st_size, (dir)->info.st_blocks * 512) |
186
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295 #define ngx_de_mtime(dir) (dir)->info.st_mtime |
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296 |
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297 |
727 | 298 ngx_int_t ngx_open_glob(ngx_glob_t *gl); |
299 #define ngx_open_glob_n "glob()" | |
300 ngx_int_t ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name); | |
301 void ngx_close_glob(ngx_glob_t *gl); | |
302 | |
303 | |
611 | 304 ngx_err_t ngx_trylock_fd(ngx_fd_t fd); |
305 ngx_err_t ngx_lock_fd(ngx_fd_t fd); | |
306 ngx_err_t ngx_unlock_fd(ngx_fd_t fd); | |
307 | |
308 #define ngx_trylock_fd_n "fcntl(F_SETLK, F_WRLCK)" | |
309 #define ngx_lock_fd_n "fcntl(F_SETLKW, F_WRLCK)" | |
310 #define ngx_unlock_fd_n "fcntl(F_SETLK, F_UNLCK)" | |
311 | |
312 | |
3178 | 313 #if (NGX_HAVE_F_READAHEAD) |
314 | |
315 #define NGX_HAVE_READ_AHEAD 1 | |
316 | |
317 #define ngx_read_ahead(fd, n) fcntl(fd, F_READAHEAD, (int) n) | |
318 #define ngx_read_ahead_n "fcntl(fd, F_READAHEAD)" | |
319 | |
320 #elif (NGX_HAVE_POSIX_FADVISE) | |
321 | |
322 #define NGX_HAVE_READ_AHEAD 1 | |
323 | |
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324 ngx_int_t ngx_read_ahead(ngx_fd_t fd, size_t n); |
3178 | 325 #define ngx_read_ahead_n "posix_fadvise(POSIX_FADV_SEQUENTIAL)" |
326 | |
327 #else | |
328 | |
329 #define ngx_read_ahead(fd, n) 0 | |
330 #define ngx_read_ahead_n "ngx_read_ahead_n" | |
331 | |
332 #endif | |
333 | |
334 | |
2129 | 335 #if (NGX_HAVE_O_DIRECT) |
336 | |
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337 ngx_int_t ngx_directio_on(ngx_fd_t fd); |
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338 #define ngx_directio_on_n "fcntl(O_DIRECT)" |
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339 |
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340 ngx_int_t ngx_directio_off(ngx_fd_t fd); |
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341 #define ngx_directio_off_n "fcntl(!O_DIRECT)" |
2129 | 342 |
343 #elif (NGX_HAVE_F_NOCACHE) | |
344 | |
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345 #define ngx_directio_on(fd) fcntl(fd, F_NOCACHE, 1) |
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346 #define ngx_directio_on_n "fcntl(F_NOCACHE, 1)" |
2129 | 347 |
2143 | 348 #elif (NGX_HAVE_DIRECTIO) |
349 | |
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350 #define ngx_directio_on(fd) directio(fd, DIRECTIO_ON) |
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351 #define ngx_directio_on_n "directio(DIRECTIO_ON)" |
2143 | 352 |
2129 | 353 #else |
354 | |
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355 #define ngx_directio_on(fd) 0 |
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356 #define ngx_directio_on_n "ngx_directio_on_n" |
2129 | 357 |
358 #endif | |
359 | |
2615 | 360 size_t ngx_fs_bsize(u_char *name); |
361 | |
362 | |
4475 | 363 #if (NGX_HAVE_OPENAT) |
364 | |
365 #define ngx_openat_file(fd, name, mode, create, access) \ | |
366 openat(fd, (const char *) name, mode|create, access) | |
367 | |
368 #define ngx_openat_file_n "openat()" | |
369 | |
370 #define ngx_file_at_info(fd, name, sb, flag) \ | |
371 fstatat(fd, (const char *) name, sb, flag) | |
372 | |
373 #define ngx_file_at_info_n "fstatat()" | |
374 | |
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375 #define NGX_AT_FDCWD (ngx_fd_t) AT_FDCWD |
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376 |
4475 | 377 #endif |
378 | |
379 | |
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380 #define ngx_stderr STDERR_FILENO |
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381 #define ngx_set_stderr(fd) dup2(fd, STDERR_FILENO) |
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382 #define ngx_set_stderr_n "dup2(STDERR_FILENO)" |
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383 |
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384 |
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385 #if (NGX_HAVE_FILE_AIO) |
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386 |
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387 ssize_t ngx_file_aio_read(ngx_file_t *file, u_char *buf, size_t size, |
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388 off_t offset, ngx_pool_t *pool); |
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389 |
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390 extern ngx_uint_t ngx_file_aio; |
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391 |
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392 #endif |
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393 |
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394 |
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395 #endif /* _NGX_FILES_H_INCLUDED_ */ |