Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_files.h @ 2758:77264e0157ad
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 27 Apr 2009 11:32:33 +0000 |
parents | e50a2faac31d |
children | 9d986c4e796f |
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_FILES_H_INCLUDED_ |
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8 #define _NGX_FILES_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 int ngx_fd_t; |
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16 typedef struct stat ngx_file_info_t; |
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17 typedef ino_t ngx_file_uniq_t; |
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18 |
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19 |
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20 typedef struct { |
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21 DIR *dir; |
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22 struct dirent *de; |
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23 struct stat info; |
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24 |
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25 unsigned type:8; |
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26 unsigned valid_info:1; |
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27 unsigned valid_type:1; |
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28 } ngx_dir_t; |
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29 |
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30 |
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31 typedef struct { |
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32 size_t n; |
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33 glob_t pglob; |
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34 u_char *pattern; |
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35 ngx_log_t *log; |
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36 ngx_uint_t test; |
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37 } ngx_glob_t; |
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38 |
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40 #define NGX_INVALID_FILE -1 |
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41 #define NGX_FILE_ERROR -1 |
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44 |
1975 | 45 #ifdef __CYGWIN__ |
46 | |
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47 #define NGX_HAVE_CASELESS_FILESYSTEM 1 |
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48 |
1975 | 49 #define ngx_open_file(name, mode, create, access) \ |
50 open((const char *) name, mode|create|O_BINARY, access) | |
51 | |
52 #else | |
53 | |
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54 #define ngx_open_file(name, mode, create, access) \ |
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55 open((const char *) name, mode|create, access) |
1975 | 56 |
57 #endif | |
58 | |
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59 #define ngx_open_file_n "open()" |
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60 |
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61 #define NGX_FILE_RDONLY O_RDONLY |
1054 | 62 #define NGX_FILE_WRONLY O_WRONLY |
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63 #define NGX_FILE_RDWR O_RDWR |
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64 #define NGX_FILE_CREATE_OR_OPEN O_CREAT |
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65 #define NGX_FILE_OPEN 0 |
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66 #define NGX_FILE_TRUNCATE O_CREAT|O_TRUNC |
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67 #define NGX_FILE_APPEND O_WRONLY|O_APPEND |
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68 |
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69 #define NGX_FILE_DEFAULT_ACCESS 0644 |
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70 #define NGX_FILE_OWNER_ACCESS 0600 |
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71 |
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72 |
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73 #define ngx_close_file close |
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74 #define ngx_close_file_n "close()" |
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75 |
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76 |
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77 #define ngx_delete_file(name) unlink((const char *) name) |
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78 #define ngx_delete_file_n "unlink()" |
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79 |
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80 |
633 | 81 ngx_fd_t ngx_open_tempfile(u_char *name, ngx_uint_t persistent, |
1046 | 82 ngx_uint_t access); |
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83 #define ngx_open_tempfile_n "open()" |
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86 ssize_t ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset); |
2180 | 87 #if (NGX_HAVE_PREAD) |
88 #define ngx_read_file_n "pread()" | |
89 #else | |
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90 #define ngx_read_file_n "read()" |
2180 | 91 #endif |
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92 |
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93 ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, |
497 | 94 off_t offset); |
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95 |
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96 ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *ce, |
497 | 97 off_t offset, ngx_pool_t *pool); |
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98 |
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99 |
1055 | 100 #define ngx_read_fd read |
101 #define ngx_read_fd_n "read()" | |
102 | |
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103 /* |
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104 * we use inlined function instead of simple #define |
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105 * because glibc 2.3 sets warn_unused_result attribute for write() |
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106 * and in this case gcc 4.3 ignores (void) cast |
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107 */ |
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108 static ngx_inline ssize_t |
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109 ngx_write_fd(ngx_fd_t fd, void *buf, size_t n) |
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110 { |
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111 return write(fd, buf, n); |
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112 } |
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113 |
1055 | 114 #define ngx_write_fd_n "write()" |
115 | |
571 | 116 #define ngx_linefeed(p) *p++ = LF; |
117 #define NGX_LINEFEED_SIZE 1 | |
118 | |
119 | |
633 | 120 #define ngx_rename_file(o, n) rename((const char *) o, (const char *) n) |
681 | 121 #define ngx_rename_file_n "rename()" |
170
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122 |
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123 |
669 | 124 #define ngx_change_file_access(n, a) chmod((const char *) n, a) |
681 | 125 #define ngx_change_file_access_n "chmod()" |
126 | |
127 | |
128 ngx_int_t ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s); | |
129 #define ngx_set_file_time_n "utimes()" | |
669 | 130 |
131 | |
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132 #define ngx_file_info(file, sb) stat((const char *) file, sb) |
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133 #define ngx_file_info_n "stat()" |
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134 |
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135 #define ngx_fd_info(fd, sb) fstat(fd, sb) |
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136 #define ngx_fd_info_n "fstat()" |
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137 |
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138 #define ngx_is_dir(sb) (S_ISDIR((sb)->st_mode)) |
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139 #define ngx_is_file(sb) (S_ISREG((sb)->st_mode)) |
669 | 140 #define ngx_is_link(sb) (S_ISLNK((sb)->st_mode)) |
141 #define ngx_is_exec(sb) ((sb)->st_mode & S_IXUSR) | |
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142 #define ngx_file_access(sb) ((sb)->st_mode & 0777) |
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143 #define ngx_file_size(sb) (sb)->st_size |
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144 #define ngx_file_mtime(sb) (sb)->st_mtime |
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145 #define ngx_file_uniq(sb) (sb)->st_ino |
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146 |
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147 |
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148 #if (NGX_HAVE_CASELESS_FILESYSTEM) |
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149 |
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150 #define ngx_filename_cmp(s1, s2, n) strncasecmp((char *) s1, (char *) s2, n) |
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151 |
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152 #else |
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153 |
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154 #define ngx_filename_cmp ngx_memcmp |
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155 |
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156 #endif |
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157 |
336
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158 |
2259 | 159 #define ngx_realpath(p, r) realpath((char *) p, (char *) r) |
160 #define ngx_realpath_n "realpath()" | |
2758 | 161 #define ngx_getcwd(buf, size) (getcwd((char *) buf, size) != NULL) |
336
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162 #define ngx_getcwd_n "getcwd()" |
2744 | 163 #define ngx_path_separator(c) ((c) == '/') |
164 | |
336
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165 #define NGX_MAX_PATH PATH_MAX |
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166 |
186
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167 #define NGX_DIR_MASK_LEN 0 |
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168 |
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169 |
467 | 170 ngx_int_t ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir); |
185
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171 #define ngx_open_dir_n "opendir()" |
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172 |
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173 |
186
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174 #define ngx_close_dir(d) closedir((d)->dir) |
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175 #define ngx_close_dir_n "closedir()" |
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176 |
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177 |
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178 ngx_int_t ngx_read_dir(ngx_dir_t *dir); |
185
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179 #define ngx_read_dir_n "readdir()" |
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180 |
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181 |
669 | 182 #define ngx_create_dir(name, access) mkdir((const char *) name, access) |
186
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183 #define ngx_create_dir_n "mkdir()" |
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184 |
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185 |
290
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186 #define ngx_delete_dir(name) rmdir((const char *) name) |
185
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187 #define ngx_delete_dir_n "rmdir()" |
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188 |
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189 |
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190 #define ngx_dir_access(a) (a | (a & 0444) >> 2) |
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191 |
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192 |
457 | 193 #define ngx_de_name(dir) ((u_char *) (dir)->de->d_name) |
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194 #if (NGX_HAVE_D_NAMLEN) |
186
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195 #define ngx_de_namelen(dir) (dir)->de->d_namlen |
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196 #else |
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197 #define ngx_de_namelen(dir) ngx_strlen((dir)->de->d_name) |
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198 #endif |
497 | 199 #define ngx_de_info(name, dir) stat((const char *) name, &(dir)->info) |
186
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200 #define ngx_de_info_n "stat()" |
497 | 201 #define ngx_de_link_info(name, dir) lstat((const char *) name, &(dir)->info) |
202 #define ngx_de_link_info_n "lstat()" | |
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203 |
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204 #if (NGX_HAVE_D_TYPE) |
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205 |
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206 #if (NGX_LINUX) |
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207 |
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208 /* XFS on Linux does not set dirent.d_type */ |
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209 |
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210 #define ngx_de_is_dir(dir) \ |
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211 (((dir)->type) ? ((dir)->type == DT_DIR) : (S_ISDIR((dir)->info.st_mode))) |
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212 #define ngx_de_is_file(dir) \ |
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213 (((dir)->type) ? ((dir)->type == DT_REG) : (S_ISREG((dir)->info.st_mode))) |
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214 #define ngx_de_is_link(dir) \ |
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215 (((dir)->type) ? ((dir)->type == DT_LINK) : (S_ISLNK((dir)->info.st_mode))) |
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216 |
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217 #else |
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218 |
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219 #define ngx_de_is_dir(dir) ((dir)->type == DT_DIR) |
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220 #define ngx_de_is_file(dir) ((dir)->type == DT_REG) |
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221 #define ngx_de_is_link(dir) ((dir)->type == DT_LINK) |
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222 |
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223 #endif /* NGX_LINUX */ |
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224 |
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225 #else |
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226 |
186
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227 #define ngx_de_is_dir(dir) (S_ISDIR((dir)->info.st_mode)) |
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228 #define ngx_de_is_file(dir) (S_ISREG((dir)->info.st_mode)) |
497 | 229 #define ngx_de_is_link(dir) (S_ISLNK((dir)->info.st_mode)) |
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230 |
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231 #endif |
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232 |
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233 #define ngx_de_access(dir) (((dir)->info.st_mode) & 0777) |
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234 #define ngx_de_size(dir) (dir)->info.st_size |
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235 #define ngx_de_mtime(dir) (dir)->info.st_mtime |
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236 |
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237 |
727 | 238 ngx_int_t ngx_open_glob(ngx_glob_t *gl); |
239 #define ngx_open_glob_n "glob()" | |
240 ngx_int_t ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name); | |
241 void ngx_close_glob(ngx_glob_t *gl); | |
242 | |
243 | |
611 | 244 ngx_err_t ngx_trylock_fd(ngx_fd_t fd); |
245 ngx_err_t ngx_lock_fd(ngx_fd_t fd); | |
246 ngx_err_t ngx_unlock_fd(ngx_fd_t fd); | |
247 | |
248 #define ngx_trylock_fd_n "fcntl(F_SETLK, F_WRLCK)" | |
249 #define ngx_lock_fd_n "fcntl(F_SETLKW, F_WRLCK)" | |
250 #define ngx_unlock_fd_n "fcntl(F_SETLK, F_UNLCK)" | |
251 | |
252 | |
2129 | 253 #if (NGX_HAVE_O_DIRECT) |
254 | |
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255 ngx_int_t ngx_directio_on(ngx_fd_t fd); |
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256 #define ngx_directio_on_n "fcntl(O_DIRECT)" |
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257 |
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258 ngx_int_t ngx_directio_off(ngx_fd_t fd); |
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259 #define ngx_directio_off_n "fcntl(!O_DIRECT)" |
2129 | 260 |
261 #elif (NGX_HAVE_F_NOCACHE) | |
262 | |
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263 #define ngx_directio_on(fd) fcntl(fd, F_NOCACHE, 1) |
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264 #define ngx_directio_on_n "fcntl(F_NOCACHE, 1)" |
2129 | 265 |
2143 | 266 #elif (NGX_HAVE_DIRECTIO) |
267 | |
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268 #define ngx_directio_on(fd) directio(fd, DIRECTIO_ON) |
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269 #define ngx_directio_on_n "directio(DIRECTIO_ON)" |
2143 | 270 |
2129 | 271 #else |
272 | |
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273 #define ngx_directio_on(fd) 0 |
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274 #define ngx_directio_on_n "ngx_directio_on_n" |
2129 | 275 |
276 #endif | |
277 | |
2615 | 278 size_t ngx_fs_bsize(u_char *name); |
279 | |
280 | |
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281 #define ngx_stderr STDERR_FILENO |
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282 #define ngx_set_stderr(fd) dup2(fd, STDERR_FILENO) |
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283 #define ngx_set_stderr_n "dup2(STDERR_FILENO)" |
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284 |
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285 |
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286 #endif /* _NGX_FILES_H_INCLUDED_ */ |