Mercurial > hg > nginx
annotate src/os/unix/ngx_files.c @ 4943:1e2d5d3f9f6b
Core: removed GLOB_NOSORT glob option.
This will result in alphabetical sorting of included files if
the "include" directive with wildcards is used.
Note that the behaviour is now different from that on Windows, where
alphabetical sorting is not guaranteed for FindFirsFile()/FindNextFile()
(used to be alphabetical on NTFS, but not on FAT).
Approved by Igor Sysoev, prodded by many.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 29 Nov 2012 23:15:41 +0000 |
| parents | 64ffc28850bb |
| children | 1fdba317ee6d |
| rev | line source |
|---|---|
|
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. |
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
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12 #if (NGX_HAVE_FILE_AIO) |
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13 |
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14 ngx_uint_t ngx_file_aio = 1; |
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15 |
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16 #endif |
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17 |
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18 |
| 561 | 19 ssize_t |
| 20 ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
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21 { |
| 561 | 22 ssize_t n; |
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23 |
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24 ngx_log_debug4(NGX_LOG_DEBUG_CORE, file->log, 0, |
| 461 | 25 "read: %d, %p, %uz, %O", file->fd, buf, size, offset); |
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| 469 | 27 #if (NGX_HAVE_PREAD) |
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28 |
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29 n = pread(file->fd, buf, size, offset); |
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30 |
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31 if (n == -1) { |
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32 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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33 "pread() \"%s\" failed", file->name.data); |
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34 return NGX_ERROR; |
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35 } |
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36 |
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37 #else |
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38 |
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39 if (file->sys_offset != offset) { |
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40 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
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41 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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42 "lseek() \"%s\" failed", file->name.data); |
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43 return NGX_ERROR; |
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44 } |
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45 |
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46 file->sys_offset = offset; |
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47 } |
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48 |
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49 n = read(file->fd, buf, size); |
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50 |
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51 if (n == -1) { |
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52 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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53 "read() \"%s\" failed", file->name.data); |
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54 return NGX_ERROR; |
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55 } |
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56 |
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57 file->sys_offset += n; |
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58 |
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59 #endif |
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60 |
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61 file->offset += n; |
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62 |
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63 return n; |
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64 } |
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65 |
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66 |
| 561 | 67 ssize_t |
| 68 ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
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69 { |
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70 ssize_t n, written; |
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71 |
| 461 | 72 ngx_log_debug4(NGX_LOG_DEBUG_CORE, file->log, 0, |
| 73 "write: %d, %p, %uz, %O", file->fd, buf, size, offset); | |
| 74 | |
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75 written = 0; |
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76 |
| 469 | 77 #if (NGX_HAVE_PWRITE) |
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78 |
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79 for ( ;; ) { |
| 3657 | 80 n = pwrite(file->fd, buf + written, size, offset); |
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81 |
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82 if (n == -1) { |
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83 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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84 "pwrite() \"%s\" failed", file->name.data); |
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85 return NGX_ERROR; |
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86 } |
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87 |
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88 file->offset += n; |
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89 written += n; |
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90 |
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91 if ((size_t) n == size) { |
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92 return written; |
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93 } |
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94 |
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95 offset += n; |
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96 size -= n; |
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97 } |
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98 |
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99 #else |
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100 |
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101 if (file->sys_offset != offset) { |
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102 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
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103 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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104 "lseek() \"%s\" failed", file->name.data); |
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105 return NGX_ERROR; |
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106 } |
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107 |
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108 file->sys_offset = offset; |
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109 } |
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110 |
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111 for ( ;; ) { |
| 3657 | 112 n = write(file->fd, buf + written, size); |
|
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113 |
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114 if (n == -1) { |
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115 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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116 "write() \"%s\" failed", file->name.data); |
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117 return NGX_ERROR; |
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118 } |
|
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119 |
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120 file->offset += n; |
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121 written += n; |
|
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122 |
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123 if ((size_t) n == size) { |
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124 return written; |
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125 } |
|
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126 |
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127 size -= n; |
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128 } |
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129 #endif |
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130 } |
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131 |
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132 |
| 561 | 133 ngx_fd_t |
| 1046 | 134 ngx_open_tempfile(u_char *name, ngx_uint_t persistent, ngx_uint_t access) |
|
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135 { |
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136 ngx_fd_t fd; |
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137 |
| 1046 | 138 fd = open((const char *) name, O_CREAT|O_EXCL|O_RDWR, |
| 139 access ? access : 0600); | |
|
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140 |
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141 if (fd != -1 && !persistent) { |
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142 (void) unlink((const char *) name); |
|
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143 } |
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144 |
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145 return fd; |
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146 } |
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147 |
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148 |
| 461 | 149 #define NGX_IOVS 8 |
| 150 | |
| 561 | 151 ssize_t |
| 152 ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *cl, off_t offset, | |
| 153 ngx_pool_t *pool) | |
|
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154 { |
|
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155 u_char *prev; |
|
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156 size_t size; |
|
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157 ssize_t total, n; |
| 461 | 158 ngx_array_t vec; |
| 159 struct iovec *iov, iovs[NGX_IOVS]; | |
|
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160 |
| 461 | 161 /* use pwrite() if there is the only buf in a chain */ |
|
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162 |
|
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163 if (cl->next == NULL) { |
|
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164 return ngx_write_file(file, cl->buf->pos, |
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165 (size_t) (cl->buf->last - cl->buf->pos), |
|
194
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166 offset); |
|
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167 } |
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168 |
|
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169 total = 0; |
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170 |
| 461 | 171 vec.elts = iovs; |
| 172 vec.size = sizeof(struct iovec); | |
| 577 | 173 vec.nalloc = NGX_IOVS; |
| 461 | 174 vec.pool = pool; |
|
170
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175 |
| 461 | 176 do { |
| 177 prev = NULL; | |
| 178 iov = NULL; | |
| 179 size = 0; | |
|
170
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180 |
| 461 | 181 vec.nelts = 0; |
| 182 | |
| 183 /* create the iovec and coalesce the neighbouring bufs */ | |
|
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184 |
| 461 | 185 while (cl && vec.nelts < IOV_MAX) { |
| 186 if (prev == cl->buf->pos) { | |
| 187 iov->iov_len += cl->buf->last - cl->buf->pos; | |
|
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188 |
| 461 | 189 } else { |
| 501 | 190 iov = ngx_array_push(&vec); |
| 191 if (iov == NULL) { | |
| 461 | 192 return NGX_ERROR; |
| 193 } | |
| 194 | |
| 195 iov->iov_base = (void *) cl->buf->pos; | |
| 196 iov->iov_len = cl->buf->last - cl->buf->pos; | |
| 197 } | |
| 198 | |
| 199 size += cl->buf->last - cl->buf->pos; | |
| 200 prev = cl->buf->last; | |
| 201 cl = cl->next; | |
|
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202 } |
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203 |
| 461 | 204 /* use pwrite() if there is the only iovec buffer */ |
|
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205 |
| 461 | 206 if (vec.nelts == 1) { |
| 207 iov = vec.elts; | |
|
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208 |
|
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209 n = ngx_write_file(file, (u_char *) iov[0].iov_base, |
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210 iov[0].iov_len, offset); |
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211 |
|
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212 if (n == NGX_ERROR) { |
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213 return n; |
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214 } |
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215 |
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216 return total + n; |
| 461 | 217 } |
|
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218 |
| 461 | 219 if (file->sys_offset != offset) { |
| 220 if (lseek(file->fd, offset, SEEK_SET) == -1) { | |
| 221 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, | |
|
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222 "lseek() \"%s\" failed", file->name.data); |
| 461 | 223 return NGX_ERROR; |
| 224 } | |
|
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225 |
| 461 | 226 file->sys_offset = offset; |
| 227 } | |
| 228 | |
| 229 n = writev(file->fd, vec.elts, vec.nelts); | |
| 230 | |
| 231 if (n == -1) { | |
| 232 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, | |
|
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233 "writev() \"%s\" failed", file->name.data); |
|
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234 return NGX_ERROR; |
|
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235 } |
|
191
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236 |
| 461 | 237 if ((size_t) n != size) { |
| 238 ngx_log_error(NGX_LOG_CRIT, file->log, 0, | |
|
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239 "writev() \"%s\" has written only %z of %uz", |
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240 file->name.data, n, size); |
| 461 | 241 return NGX_ERROR; |
| 242 } | |
|
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243 |
|
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244 ngx_log_debug2(NGX_LOG_DEBUG_CORE, file->log, 0, |
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245 "writev: %d, %z", file->fd, n); |
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246 |
| 461 | 247 file->sys_offset += n; |
| 248 file->offset += n; | |
|
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249 offset += n; |
|
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250 total += n; |
|
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251 |
| 461 | 252 } while (cl); |
|
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253 |
|
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254 return total; |
|
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255 } |
|
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256 |
|
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257 |
| 561 | 258 ngx_int_t |
| 681 | 259 ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s) |
| 260 { | |
| 261 struct timeval tv[2]; | |
| 262 | |
|
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263 tv[0].tv_sec = ngx_time(); |
| 681 | 264 tv[0].tv_usec = 0; |
| 265 tv[1].tv_sec = s; | |
| 266 tv[1].tv_usec = 0; | |
| 267 | |
| 268 if (utimes((char *) name, tv) != -1) { | |
| 269 return NGX_OK; | |
| 270 } | |
| 271 | |
| 272 return NGX_ERROR; | |
| 273 } | |
| 274 | |
| 275 | |
| 276 ngx_int_t | |
| 3651 | 277 ngx_create_file_mapping(ngx_file_mapping_t *fm) |
| 278 { | |
| 279 fm->fd = ngx_open_file(fm->name, NGX_FILE_RDWR, NGX_FILE_TRUNCATE, | |
| 280 NGX_FILE_DEFAULT_ACCESS); | |
| 281 if (fm->fd == NGX_INVALID_FILE) { | |
| 282 ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno, | |
| 283 ngx_open_file_n " \"%s\" failed", fm->name); | |
| 284 return NGX_ERROR; | |
| 285 } | |
| 286 | |
| 287 if (ftruncate(fm->fd, fm->size) == -1) { | |
| 288 ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno, | |
| 289 "ftruncate() \"%s\" failed", fm->name); | |
| 290 goto failed; | |
| 291 } | |
| 292 | |
| 293 fm->addr = mmap(NULL, fm->size, PROT_READ|PROT_WRITE, MAP_SHARED, | |
| 294 fm->fd, 0); | |
| 295 if (fm->addr != MAP_FAILED) { | |
| 296 return NGX_OK; | |
| 297 } | |
| 298 | |
| 299 ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno, | |
| 300 "mmap(%uz) \"%s\" failed", fm->size, fm->name); | |
| 301 | |
| 302 failed: | |
| 303 | |
| 304 if (ngx_close_file(fm->fd) == NGX_FILE_ERROR) { | |
| 305 ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno, | |
| 306 ngx_close_file_n " \"%s\" failed", fm->name); | |
| 307 } | |
| 308 | |
| 309 return NGX_ERROR; | |
| 310 } | |
| 311 | |
| 312 | |
| 313 void | |
| 314 ngx_close_file_mapping(ngx_file_mapping_t *fm) | |
| 315 { | |
| 316 if (munmap(fm->addr, fm->size) == -1) { | |
| 317 ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno, | |
| 318 "munmap(%uz) \"%s\" failed", fm->size, fm->name); | |
| 319 } | |
| 320 | |
| 321 if (ngx_close_file(fm->fd) == NGX_FILE_ERROR) { | |
| 322 ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno, | |
| 323 ngx_close_file_n " \"%s\" failed", fm->name); | |
| 324 } | |
| 325 } | |
| 326 | |
| 327 | |
| 328 ngx_int_t | |
| 561 | 329 ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir) |
|
186
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330 { |
|
290
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331 dir->dir = opendir((const char *) name->data); |
|
186
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332 |
|
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333 if (dir->dir == NULL) { |
|
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334 return NGX_ERROR; |
|
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335 } |
|
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336 |
| 457 | 337 dir->valid_info = 0; |
|
186
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338 |
|
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339 return NGX_OK; |
|
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340 } |
| 561 | 341 |
| 342 | |
| 727 | 343 ngx_int_t |
|
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344 ngx_read_dir(ngx_dir_t *dir) |
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345 { |
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346 dir->de = readdir(dir->dir); |
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347 |
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348 if (dir->de) { |
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349 #if (NGX_HAVE_D_TYPE) |
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350 dir->type = dir->de->d_type; |
|
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351 #else |
|
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352 dir->type = 0; |
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353 #endif |
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354 return NGX_OK; |
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355 } |
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356 |
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357 return NGX_ERROR; |
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358 } |
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359 |
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360 |
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361 ngx_int_t |
| 727 | 362 ngx_open_glob(ngx_glob_t *gl) |
| 363 { | |
| 1980 | 364 int n; |
| 365 | |
|
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366 n = glob((char *) gl->pattern, 0, NULL, &gl->pglob); |
| 1980 | 367 |
| 368 if (n == 0) { | |
| 369 return NGX_OK; | |
| 370 } | |
| 371 | |
|
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372 #ifdef GLOB_NOMATCH |
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373 |
| 1980 | 374 if (n == GLOB_NOMATCH && gl->test) { |
| 727 | 375 return NGX_OK; |
| 376 } | |
| 377 | |
|
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378 #endif |
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379 |
| 727 | 380 return NGX_ERROR; |
| 381 } | |
| 382 | |
| 383 | |
| 384 ngx_int_t | |
| 385 ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name) | |
| 386 { | |
|
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387 size_t count; |
|
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388 |
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389 #ifdef GLOB_NOMATCH |
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390 count = (size_t) gl->pglob.gl_pathc; |
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391 #else |
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392 count = (size_t) gl->pglob.gl_matchc; |
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393 #endif |
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394 |
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395 if (gl->n < count) { |
| 727 | 396 |
| 397 name->len = (size_t) ngx_strlen(gl->pglob.gl_pathv[gl->n]); | |
| 398 name->data = (u_char *) gl->pglob.gl_pathv[gl->n]; | |
| 399 gl->n++; | |
| 400 | |
| 401 return NGX_OK; | |
| 402 } | |
| 403 | |
| 404 return NGX_DONE; | |
| 405 } | |
| 406 | |
| 407 | |
| 408 void | |
| 409 ngx_close_glob(ngx_glob_t *gl) | |
| 410 { | |
| 411 globfree(&gl->pglob); | |
| 412 } | |
| 413 | |
| 414 | |
| 611 | 415 ngx_err_t |
| 416 ngx_trylock_fd(ngx_fd_t fd) | |
| 561 | 417 { |
| 418 struct flock fl; | |
| 419 | |
|
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420 ngx_memzero(&fl, sizeof(struct flock)); |
| 611 | 421 fl.l_type = F_WRLCK; |
| 561 | 422 fl.l_whence = SEEK_SET; |
| 611 | 423 |
| 424 if (fcntl(fd, F_SETLK, &fl) == -1) { | |
| 425 return ngx_errno; | |
| 426 } | |
| 427 | |
| 428 return 0; | |
| 429 } | |
| 430 | |
| 431 | |
| 432 ngx_err_t | |
| 433 ngx_lock_fd(ngx_fd_t fd) | |
| 434 { | |
| 435 struct flock fl; | |
| 436 | |
|
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|
437 ngx_memzero(&fl, sizeof(struct flock)); |
| 561 | 438 fl.l_type = F_WRLCK; |
| 611 | 439 fl.l_whence = SEEK_SET; |
| 561 | 440 |
| 611 | 441 if (fcntl(fd, F_SETLKW, &fl) == -1) { |
| 442 return ngx_errno; | |
| 561 | 443 } |
| 444 | |
| 611 | 445 return 0; |
| 561 | 446 } |
| 447 | |
| 448 | |
| 611 | 449 ngx_err_t |
| 450 ngx_unlock_fd(ngx_fd_t fd) | |
| 561 | 451 { |
| 452 struct flock fl; | |
| 453 | |
|
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454 ngx_memzero(&fl, sizeof(struct flock)); |
| 561 | 455 fl.l_type = F_UNLCK; |
| 611 | 456 fl.l_whence = SEEK_SET; |
| 561 | 457 |
| 611 | 458 if (fcntl(fd, F_SETLK, &fl) == -1) { |
| 459 return ngx_errno; | |
| 561 | 460 } |
| 461 | |
| 611 | 462 return 0; |
| 561 | 463 } |
| 2129 | 464 |
| 465 | |
|
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|
466 #if (NGX_HAVE_POSIX_FADVISE) && !(NGX_HAVE_F_READAHEAD) |
|
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467 |
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468 ngx_int_t |
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469 ngx_read_ahead(ngx_fd_t fd, size_t n) |
|
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470 { |
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471 int err; |
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472 |
|
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473 err = posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL); |
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474 |
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475 if (err == 0) { |
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476 return 0; |
|
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|
477 } |
|
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|
478 |
|
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479 ngx_set_errno(err); |
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480 return NGX_FILE_ERROR; |
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481 } |
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482 |
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483 #endif |
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484 |
|
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485 |
| 2129 | 486 #if (NGX_HAVE_O_DIRECT) |
| 487 | |
| 488 ngx_int_t | |
|
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489 ngx_directio_on(ngx_fd_t fd) |
| 2129 | 490 { |
| 491 int flags; | |
| 492 | |
| 493 flags = fcntl(fd, F_GETFL); | |
| 494 | |
| 495 if (flags == -1) { | |
|
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496 return NGX_FILE_ERROR; |
| 2129 | 497 } |
| 498 | |
| 499 return fcntl(fd, F_SETFL, flags | O_DIRECT); | |
| 500 } | |
| 501 | |
|
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502 |
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503 ngx_int_t |
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504 ngx_directio_off(ngx_fd_t fd) |
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505 { |
|
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506 int flags; |
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507 |
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508 flags = fcntl(fd, F_GETFL); |
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509 |
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510 if (flags == -1) { |
|
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511 return NGX_FILE_ERROR; |
|
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512 } |
|
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513 |
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514 return fcntl(fd, F_SETFL, flags & ~O_DIRECT); |
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515 } |
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516 |
| 2129 | 517 #endif |
| 2615 | 518 |
| 519 | |
| 520 #if (NGX_HAVE_STATFS) | |
| 521 | |
| 522 size_t | |
| 523 ngx_fs_bsize(u_char *name) | |
| 524 { | |
| 525 struct statfs fs; | |
| 526 | |
| 527 if (statfs((char *) name, &fs) == -1) { | |
| 528 return 512; | |
| 529 } | |
| 530 | |
| 531 if ((fs.f_bsize % 512) != 0) { | |
| 532 return 512; | |
| 533 } | |
| 534 | |
| 535 return (size_t) fs.f_bsize; | |
| 536 } | |
| 537 | |
| 538 #elif (NGX_HAVE_STATVFS) | |
| 539 | |
| 540 size_t | |
| 541 ngx_fs_bsize(u_char *name) | |
| 542 { | |
| 543 struct statvfs fs; | |
| 544 | |
| 545 if (statvfs((char *) name, &fs) == -1) { | |
| 546 return 512; | |
| 547 } | |
| 548 | |
| 549 if ((fs.f_frsize % 512) != 0) { | |
| 550 return 512; | |
| 551 } | |
| 552 | |
| 553 return (size_t) fs.f_frsize; | |
| 554 } | |
| 555 | |
| 556 #else | |
| 557 | |
| 558 size_t | |
| 559 ngx_fs_bsize(u_char *name) | |
| 560 { | |
| 561 return 512; | |
| 562 } | |
| 563 | |
| 564 #endif |