Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_files.c @ 727:532d15ddbe68
glob support in include
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 02 Oct 2006 08:46:45 +0000 |
parents | 7e24168b0853 |
children | 72621ebef255 |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
5
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6 |
33
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7 #include <ngx_config.h> |
8
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8 #include <ngx_core.h> |
74
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9 |
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10 |
561 | 11 ssize_t |
12 ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
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13 { |
561 | 14 ssize_t n; |
5
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15 |
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16 ngx_log_debug4(NGX_LOG_DEBUG_CORE, file->log, 0, |
461 | 17 "read: %d, %p, %uz, %O", file->fd, buf, size, offset); |
8
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18 |
469 | 19 #if (NGX_HAVE_PREAD) |
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20 |
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21 n = pread(file->fd, buf, size, offset); |
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22 |
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23 if (n == -1) { |
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24 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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25 "pread() failed, file \"%s\"", file->name.data); |
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26 return NGX_ERROR; |
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27 } |
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28 |
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29 #else |
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30 |
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31 if (file->sys_offset != offset) { |
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32 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
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33 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); |
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34 return NGX_ERROR; |
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35 } |
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36 |
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37 file->sys_offset = offset; |
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38 } |
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39 |
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40 n = read(file->fd, buf, size); |
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41 |
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42 if (n == -1) { |
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43 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "read() failed"); |
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44 return NGX_ERROR; |
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45 } |
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46 |
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47 file->sys_offset += n; |
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48 |
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49 #endif |
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50 |
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51 file->offset += n; |
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52 |
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53 return n; |
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54 } |
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55 |
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56 |
561 | 57 ssize_t |
58 ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
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59 { |
561 | 60 ssize_t n; |
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61 |
461 | 62 ngx_log_debug4(NGX_LOG_DEBUG_CORE, file->log, 0, |
63 "write: %d, %p, %uz, %O", file->fd, buf, size, offset); | |
64 | |
469 | 65 #if (NGX_HAVE_PWRITE) |
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66 |
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67 n = pwrite(file->fd, buf, size, offset); |
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68 |
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69 if (n == -1) { |
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70 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "pwrite() failed"); |
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71 return NGX_ERROR; |
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72 } |
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73 |
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74 if ((size_t) n != size) { |
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75 ngx_log_error(NGX_LOG_CRIT, file->log, 0, |
461 | 76 "pwrite() has written only %z of %uz", n, size); |
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77 return NGX_ERROR; |
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78 } |
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79 |
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80 #else |
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81 |
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82 if (file->sys_offset != offset) { |
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83 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
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84 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); |
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85 return NGX_ERROR; |
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86 } |
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87 |
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88 file->sys_offset = offset; |
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89 } |
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90 |
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91 n = write(file->fd, buf, size); |
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92 |
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93 if (n == -1) { |
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94 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "write() failed"); |
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95 return NGX_ERROR; |
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96 } |
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97 |
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98 if ((size_t) n != size) { |
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99 ngx_log_error(NGX_LOG_CRIT, file->log, 0, |
461 | 100 "write() has written only %z of %uz", n, size); |
182
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101 return NGX_ERROR; |
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102 } |
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103 |
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104 file->sys_offset += n; |
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105 |
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106 #endif |
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107 |
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108 file->offset += n; |
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109 |
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110 return n; |
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111 } |
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112 |
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113 |
561 | 114 ngx_fd_t |
633 | 115 ngx_open_tempfile(u_char *name, ngx_uint_t persistent, ngx_uint_t mode) |
303
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116 { |
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117 ngx_fd_t fd; |
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118 |
633 | 119 fd = open((const char *) name, O_CREAT|O_EXCL|O_RDWR, mode ? mode : 0600); |
303
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120 |
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121 if (fd != -1 && !persistent) { |
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122 unlink((const char *) name); |
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123 } |
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124 |
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125 return fd; |
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126 } |
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127 |
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128 |
461 | 129 #define NGX_IOVS 8 |
130 | |
561 | 131 ssize_t |
132 ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *cl, off_t offset, | |
133 ngx_pool_t *pool) | |
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134 { |
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135 u_char *prev; |
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136 size_t size; |
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137 ssize_t n; |
461 | 138 ngx_array_t vec; |
139 struct iovec *iov, iovs[NGX_IOVS]; | |
74
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140 |
461 | 141 /* use pwrite() if there is the only buf in a chain */ |
74
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142 |
170
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143 if (cl->next == NULL) { |
343
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144 return ngx_write_file(file, cl->buf->pos, |
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145 (size_t) (cl->buf->last - cl->buf->pos), |
194
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146 offset); |
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147 } |
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148 |
461 | 149 vec.elts = iovs; |
150 vec.size = sizeof(struct iovec); | |
577 | 151 vec.nalloc = NGX_IOVS; |
461 | 152 vec.pool = pool; |
170
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153 |
461 | 154 do { |
155 prev = NULL; | |
156 iov = NULL; | |
157 size = 0; | |
170
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158 |
461 | 159 vec.nelts = 0; |
160 | |
161 /* create the iovec and coalesce the neighbouring bufs */ | |
170
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162 |
461 | 163 while (cl && vec.nelts < IOV_MAX) { |
164 if (prev == cl->buf->pos) { | |
165 iov->iov_len += cl->buf->last - cl->buf->pos; | |
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166 |
461 | 167 } else { |
501 | 168 iov = ngx_array_push(&vec); |
169 if (iov == NULL) { | |
461 | 170 return NGX_ERROR; |
171 } | |
172 | |
173 iov->iov_base = (void *) cl->buf->pos; | |
174 iov->iov_len = cl->buf->last - cl->buf->pos; | |
175 } | |
176 | |
177 size += cl->buf->last - cl->buf->pos; | |
178 prev = cl->buf->last; | |
179 cl = cl->next; | |
170
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180 } |
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181 |
461 | 182 /* use pwrite() if there is the only iovec buffer */ |
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183 |
461 | 184 if (vec.nelts == 1) { |
185 iov = vec.elts; | |
186 return ngx_write_file(file, (u_char *) iov[0].iov_base, | |
187 iov[0].iov_len, offset); | |
188 } | |
170
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189 |
461 | 190 if (file->sys_offset != offset) { |
191 if (lseek(file->fd, offset, SEEK_SET) == -1) { | |
192 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, | |
193 "lseek() failed"); | |
194 return NGX_ERROR; | |
195 } | |
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196 |
461 | 197 file->sys_offset = offset; |
198 } | |
199 | |
200 n = writev(file->fd, vec.elts, vec.nelts); | |
201 | |
202 if (n == -1) { | |
203 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, | |
204 "writev() failed"); | |
154
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205 return NGX_ERROR; |
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206 } |
191
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207 |
461 | 208 if ((size_t) n != size) { |
209 ngx_log_error(NGX_LOG_CRIT, file->log, 0, | |
210 "writev() has written only %z of %uz", n, size); | |
211 return NGX_ERROR; | |
212 } | |
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213 |
461 | 214 file->sys_offset += n; |
215 file->offset += n; | |
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216 |
461 | 217 } while (cl); |
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218 |
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219 return n; |
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220 } |
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221 |
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222 |
561 | 223 ngx_int_t |
681 | 224 ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s) |
225 { | |
226 struct timeval tv[2]; | |
227 | |
228 tv[0].tv_sec = s; | |
229 tv[0].tv_usec = 0; | |
230 tv[1].tv_sec = s; | |
231 tv[1].tv_usec = 0; | |
232 | |
233 if (utimes((char *) name, tv) != -1) { | |
234 return NGX_OK; | |
235 } | |
236 | |
237 return NGX_ERROR; | |
238 } | |
239 | |
240 | |
241 ngx_int_t | |
561 | 242 ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir) |
186
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243 { |
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244 dir->dir = opendir((const char *) name->data); |
186
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245 |
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246 if (dir->dir == NULL) { |
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247 return NGX_ERROR; |
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248 } |
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249 |
457 | 250 dir->valid_info = 0; |
186
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251 |
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252 return NGX_OK; |
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253 } |
561 | 254 |
255 | |
727 | 256 ngx_int_t |
257 ngx_open_glob(ngx_glob_t *gl) | |
258 { | |
259 if (glob((char *) gl->pattern, 0, NULL, &gl->pglob) == 0) { | |
260 return NGX_OK; | |
261 } | |
262 | |
263 return NGX_ERROR; | |
264 } | |
265 | |
266 | |
267 ngx_int_t | |
268 ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name) | |
269 { | |
270 if (gl->n < gl->pglob.gl_pathc) { | |
271 | |
272 name->len = (size_t) ngx_strlen(gl->pglob.gl_pathv[gl->n]); | |
273 name->data = (u_char *) gl->pglob.gl_pathv[gl->n]; | |
274 gl->n++; | |
275 | |
276 return NGX_OK; | |
277 } | |
278 | |
279 return NGX_DONE; | |
280 } | |
281 | |
282 | |
283 void | |
284 ngx_close_glob(ngx_glob_t *gl) | |
285 { | |
286 globfree(&gl->pglob); | |
287 } | |
288 | |
289 | |
611 | 290 ngx_err_t |
291 ngx_trylock_fd(ngx_fd_t fd) | |
561 | 292 { |
293 struct flock fl; | |
294 | |
611 | 295 fl.l_start = 0; |
296 fl.l_len = 0; | |
297 fl.l_pid = 0; | |
298 fl.l_type = F_WRLCK; | |
561 | 299 fl.l_whence = SEEK_SET; |
611 | 300 |
301 if (fcntl(fd, F_SETLK, &fl) == -1) { | |
302 return ngx_errno; | |
303 } | |
304 | |
305 return 0; | |
306 } | |
307 | |
308 | |
309 ngx_err_t | |
310 ngx_lock_fd(ngx_fd_t fd) | |
311 { | |
312 struct flock fl; | |
313 | |
314 fl.l_start = 0; | |
561 | 315 fl.l_len = 0; |
316 fl.l_pid = 0; | |
317 fl.l_type = F_WRLCK; | |
611 | 318 fl.l_whence = SEEK_SET; |
561 | 319 |
611 | 320 if (fcntl(fd, F_SETLKW, &fl) == -1) { |
321 return ngx_errno; | |
561 | 322 } |
323 | |
611 | 324 return 0; |
561 | 325 } |
326 | |
327 | |
611 | 328 ngx_err_t |
329 ngx_unlock_fd(ngx_fd_t fd) | |
561 | 330 { |
331 struct flock fl; | |
332 | |
611 | 333 fl.l_start = 0; |
561 | 334 fl.l_len = 0; |
335 fl.l_pid = 0; | |
336 fl.l_type = F_UNLCK; | |
611 | 337 fl.l_whence = SEEK_SET; |
561 | 338 |
611 | 339 if (fcntl(fd, F_SETLK, &fl) == -1) { |
340 return ngx_errno; | |
561 | 341 } |
342 | |
611 | 343 return 0; |
561 | 344 } |