Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_files.h @ 3363:b4aa418af6ef
libatomic_ops support
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 25 Nov 2009 17:55:25 +0000 |
parents | e19df6e65352 |
children | ac281bc4c187 |
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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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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14 |
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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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20 typedef struct { |
2933 | 21 DIR *dir; |
22 struct dirent *de; | |
23 struct stat info; | |
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24 |
2933 | 25 unsigned type:8; |
26 unsigned valid_info:1; | |
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27 } ngx_dir_t; |
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28 |
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29 |
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30 typedef struct { |
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31 size_t n; |
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32 glob_t pglob; |
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33 u_char *pattern; |
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34 ngx_log_t *log; |
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35 ngx_uint_t test; |
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36 } ngx_glob_t; |
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37 |
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38 |
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39 #define NGX_INVALID_FILE -1 |
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40 #define NGX_FILE_ERROR -1 |
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41 |
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42 |
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43 |
1975 | 44 #ifdef __CYGWIN__ |
45 | |
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46 #define NGX_HAVE_CASELESS_FILESYSTEM 1 |
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47 |
1975 | 48 #define ngx_open_file(name, mode, create, access) \ |
49 open((const char *) name, mode|create|O_BINARY, access) | |
50 | |
51 #else | |
52 | |
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53 #define ngx_open_file(name, mode, create, access) \ |
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54 open((const char *) name, mode|create, access) |
1975 | 55 |
56 #endif | |
57 | |
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58 #define ngx_open_file_n "open()" |
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59 |
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60 #define NGX_FILE_RDONLY O_RDONLY |
1054 | 61 #define NGX_FILE_WRONLY O_WRONLY |
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62 #define NGX_FILE_RDWR O_RDWR |
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63 #define NGX_FILE_CREATE_OR_OPEN O_CREAT |
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64 #define NGX_FILE_OPEN 0 |
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65 #define NGX_FILE_TRUNCATE O_CREAT|O_TRUNC |
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66 #define NGX_FILE_APPEND O_WRONLY|O_APPEND |
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67 |
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68 #define NGX_FILE_DEFAULT_ACCESS 0644 |
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69 #define NGX_FILE_OWNER_ACCESS 0600 |
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70 |
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71 |
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72 #define ngx_close_file close |
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73 #define ngx_close_file_n "close()" |
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74 |
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75 |
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76 #define ngx_delete_file(name) unlink((const char *) name) |
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77 #define ngx_delete_file_n "unlink()" |
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78 |
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79 |
633 | 80 ngx_fd_t ngx_open_tempfile(u_char *name, ngx_uint_t persistent, |
1046 | 81 ngx_uint_t access); |
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82 #define ngx_open_tempfile_n "open()" |
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83 |
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84 |
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85 ssize_t ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset); |
2180 | 86 #if (NGX_HAVE_PREAD) |
87 #define ngx_read_file_n "pread()" | |
88 #else | |
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89 #define ngx_read_file_n "read()" |
2180 | 90 #endif |
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91 |
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92 ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, |
497 | 93 off_t offset); |
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94 |
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95 ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *ce, |
497 | 96 off_t offset, ngx_pool_t *pool); |
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97 |
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98 |
1055 | 99 #define ngx_read_fd read |
100 #define ngx_read_fd_n "read()" | |
101 | |
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102 /* |
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103 * we use inlined function instead of simple #define |
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104 * because glibc 2.3 sets warn_unused_result attribute for write() |
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105 * and in this case gcc 4.3 ignores (void) cast |
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106 */ |
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107 static ngx_inline ssize_t |
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108 ngx_write_fd(ngx_fd_t fd, void *buf, size_t n) |
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109 { |
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110 return write(fd, buf, n); |
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111 } |
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112 |
1055 | 113 #define ngx_write_fd_n "write()" |
114 | |
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115 |
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116 #define ngx_write_console ngx_write_fd |
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117 |
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118 |
571 | 119 #define ngx_linefeed(p) *p++ = LF; |
120 #define NGX_LINEFEED_SIZE 1 | |
121 | |
122 | |
633 | 123 #define ngx_rename_file(o, n) rename((const char *) o, (const char *) n) |
681 | 124 #define ngx_rename_file_n "rename()" |
170
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125 |
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126 |
669 | 127 #define ngx_change_file_access(n, a) chmod((const char *) n, a) |
681 | 128 #define ngx_change_file_access_n "chmod()" |
129 | |
130 | |
131 ngx_int_t ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s); | |
132 #define ngx_set_file_time_n "utimes()" | |
669 | 133 |
134 | |
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135 #define ngx_file_info(file, sb) stat((const char *) file, sb) |
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136 #define ngx_file_info_n "stat()" |
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137 |
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138 #define ngx_fd_info(fd, sb) fstat(fd, sb) |
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139 #define ngx_fd_info_n "fstat()" |
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140 |
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141 #define ngx_is_dir(sb) (S_ISDIR((sb)->st_mode)) |
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142 #define ngx_is_file(sb) (S_ISREG((sb)->st_mode)) |
669 | 143 #define ngx_is_link(sb) (S_ISLNK((sb)->st_mode)) |
3281 | 144 #define ngx_is_exec(sb) (((sb)->st_mode & S_IXUSR) == S_IXUSR) |
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145 #define ngx_file_access(sb) ((sb)->st_mode & 0777) |
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146 #define ngx_file_size(sb) (sb)->st_size |
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147 #define ngx_file_mtime(sb) (sb)->st_mtime |
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148 #define ngx_file_uniq(sb) (sb)->st_ino |
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149 |
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150 |
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151 #if (NGX_HAVE_CASELESS_FILESYSTEM) |
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152 |
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153 #define ngx_filename_cmp(s1, s2, n) strncasecmp((char *) s1, (char *) s2, n) |
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154 |
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155 #else |
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156 |
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157 #define ngx_filename_cmp ngx_memcmp |
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158 |
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159 #endif |
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160 |
336
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161 |
2259 | 162 #define ngx_realpath(p, r) realpath((char *) p, (char *) r) |
163 #define ngx_realpath_n "realpath()" | |
2758 | 164 #define ngx_getcwd(buf, size) (getcwd((char *) buf, size) != NULL) |
336
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165 #define ngx_getcwd_n "getcwd()" |
2744 | 166 #define ngx_path_separator(c) ((c) == '/') |
167 | |
336
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168 #define NGX_MAX_PATH PATH_MAX |
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169 |
186
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170 #define NGX_DIR_MASK_LEN 0 |
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171 |
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172 |
467 | 173 ngx_int_t ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir); |
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174 #define ngx_open_dir_n "opendir()" |
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175 |
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176 |
186
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177 #define ngx_close_dir(d) closedir((d)->dir) |
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178 #define ngx_close_dir_n "closedir()" |
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179 |
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180 |
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181 ngx_int_t ngx_read_dir(ngx_dir_t *dir); |
185
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182 #define ngx_read_dir_n "readdir()" |
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183 |
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184 |
669 | 185 #define ngx_create_dir(name, access) mkdir((const char *) name, access) |
186
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186 #define ngx_create_dir_n "mkdir()" |
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187 |
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188 |
290
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189 #define ngx_delete_dir(name) rmdir((const char *) name) |
185
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190 #define ngx_delete_dir_n "rmdir()" |
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191 |
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192 |
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193 #define ngx_dir_access(a) (a | (a & 0444) >> 2) |
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194 |
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195 |
457 | 196 #define ngx_de_name(dir) ((u_char *) (dir)->de->d_name) |
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197 #if (NGX_HAVE_D_NAMLEN) |
186
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198 #define ngx_de_namelen(dir) (dir)->de->d_namlen |
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199 #else |
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200 #define ngx_de_namelen(dir) ngx_strlen((dir)->de->d_name) |
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201 #endif |
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202 |
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203 static ngx_inline ngx_int_t |
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204 ngx_de_info(u_char *name, ngx_dir_t *dir) |
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205 { |
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206 dir->type = 0; |
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207 return stat((const char *) name, &dir->info); |
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208 } |
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209 |
186
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210 #define ngx_de_info_n "stat()" |
497 | 211 #define ngx_de_link_info(name, dir) lstat((const char *) name, &(dir)->info) |
212 #define ngx_de_link_info_n "lstat()" | |
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213 |
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214 #if (NGX_HAVE_D_TYPE) |
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215 |
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216 /* |
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217 * some file systems (e.g. XFS on Linux and CD9660 on FreeBSD) |
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218 * do not set dirent.d_type |
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219 */ |
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220 |
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221 #define ngx_de_is_dir(dir) \ |
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222 (((dir)->type) ? ((dir)->type == DT_DIR) : (S_ISDIR((dir)->info.st_mode))) |
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223 #define ngx_de_is_file(dir) \ |
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224 (((dir)->type) ? ((dir)->type == DT_REG) : (S_ISREG((dir)->info.st_mode))) |
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225 #define ngx_de_is_link(dir) \ |
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226 (((dir)->type) ? ((dir)->type == DT_LNK) : (S_ISLNK((dir)->info.st_mode))) |
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227 |
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228 #else |
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229 |
186
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230 #define ngx_de_is_dir(dir) (S_ISDIR((dir)->info.st_mode)) |
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231 #define ngx_de_is_file(dir) (S_ISREG((dir)->info.st_mode)) |
497 | 232 #define ngx_de_is_link(dir) (S_ISLNK((dir)->info.st_mode)) |
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233 |
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234 #endif |
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235 |
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236 #define ngx_de_access(dir) (((dir)->info.st_mode) & 0777) |
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237 #define ngx_de_size(dir) (dir)->info.st_size |
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238 #define ngx_de_mtime(dir) (dir)->info.st_mtime |
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239 |
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240 |
727 | 241 ngx_int_t ngx_open_glob(ngx_glob_t *gl); |
242 #define ngx_open_glob_n "glob()" | |
243 ngx_int_t ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name); | |
244 void ngx_close_glob(ngx_glob_t *gl); | |
245 | |
246 | |
611 | 247 ngx_err_t ngx_trylock_fd(ngx_fd_t fd); |
248 ngx_err_t ngx_lock_fd(ngx_fd_t fd); | |
249 ngx_err_t ngx_unlock_fd(ngx_fd_t fd); | |
250 | |
251 #define ngx_trylock_fd_n "fcntl(F_SETLK, F_WRLCK)" | |
252 #define ngx_lock_fd_n "fcntl(F_SETLKW, F_WRLCK)" | |
253 #define ngx_unlock_fd_n "fcntl(F_SETLK, F_UNLCK)" | |
254 | |
255 | |
3178 | 256 #if (NGX_HAVE_F_READAHEAD) |
257 | |
258 #define NGX_HAVE_READ_AHEAD 1 | |
259 | |
260 #define ngx_read_ahead(fd, n) fcntl(fd, F_READAHEAD, (int) n) | |
261 #define ngx_read_ahead_n "fcntl(fd, F_READAHEAD)" | |
262 | |
263 #elif (NGX_HAVE_POSIX_FADVISE) | |
264 | |
265 #define NGX_HAVE_READ_AHEAD 1 | |
266 | |
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267 ngx_int_t ngx_read_ahead(ngx_fd_t fd, size_t n); |
3178 | 268 #define ngx_read_ahead_n "posix_fadvise(POSIX_FADV_SEQUENTIAL)" |
269 | |
270 #else | |
271 | |
272 #define ngx_read_ahead(fd, n) 0 | |
273 #define ngx_read_ahead_n "ngx_read_ahead_n" | |
274 | |
275 #endif | |
276 | |
277 | |
2129 | 278 #if (NGX_HAVE_O_DIRECT) |
279 | |
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280 ngx_int_t ngx_directio_on(ngx_fd_t fd); |
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281 #define ngx_directio_on_n "fcntl(O_DIRECT)" |
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282 |
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283 ngx_int_t ngx_directio_off(ngx_fd_t fd); |
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284 #define ngx_directio_off_n "fcntl(!O_DIRECT)" |
2129 | 285 |
286 #elif (NGX_HAVE_F_NOCACHE) | |
287 | |
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288 #define ngx_directio_on(fd) fcntl(fd, F_NOCACHE, 1) |
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289 #define ngx_directio_on_n "fcntl(F_NOCACHE, 1)" |
2129 | 290 |
2143 | 291 #elif (NGX_HAVE_DIRECTIO) |
292 | |
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293 #define ngx_directio_on(fd) directio(fd, DIRECTIO_ON) |
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294 #define ngx_directio_on_n "directio(DIRECTIO_ON)" |
2143 | 295 |
2129 | 296 #else |
297 | |
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298 #define ngx_directio_on(fd) 0 |
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299 #define ngx_directio_on_n "ngx_directio_on_n" |
2129 | 300 |
301 #endif | |
302 | |
2615 | 303 size_t ngx_fs_bsize(u_char *name); |
304 | |
305 | |
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306 #define ngx_stderr STDERR_FILENO |
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307 #define ngx_set_stderr(fd) dup2(fd, STDERR_FILENO) |
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308 #define ngx_set_stderr_n "dup2(STDERR_FILENO)" |
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309 |
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310 |
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311 #if (NGX_HAVE_FILE_AIO) |
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312 |
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313 ssize_t ngx_file_aio_read(ngx_file_t *file, u_char *buf, size_t size, |
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314 off_t offset, ngx_pool_t *pool); |
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315 |
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316 extern ngx_uint_t ngx_file_aio; |
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317 |
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318 #endif |
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319 |
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320 |
8
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321 #endif /* _NGX_FILES_H_INCLUDED_ */ |