Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_files.c @ 457:ded1284520cc release-0.1.3
nginx-0.1.3-RELEASE import
*) Feature: the ngx_http_autoindex_module and the autoindex directive.
*) Feature: the proxy_set_x_url directive.
*) Bugfix: proxy module may get caught in an endless loop when sendfile
is not used.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 25 Oct 2004 15:29:23 +0000 |
parents | 295d97d70c69 |
children | a88a3e4e158f |
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 |
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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> |
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9 |
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11 ssize_t ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) |
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12 { |
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13 ssize_t n; |
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14 |
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15 ngx_log_debug4(NGX_LOG_DEBUG_CORE, file->log, 0, |
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16 "read: %d, %X, %d, " OFF_T_FMT, file->fd, buf, size, offset); |
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17 |
457 | 18 #if (NGX_PREAD) |
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19 |
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20 n = pread(file->fd, buf, size, offset); |
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21 |
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22 if (n == -1) { |
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23 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, |
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24 "pread() failed, file \"%s\"", file->name.data); |
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25 return NGX_ERROR; |
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26 } |
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28 #else |
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29 |
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30 if (file->sys_offset != offset) { |
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31 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
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32 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); |
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33 return NGX_ERROR; |
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34 } |
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35 |
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36 file->sys_offset = offset; |
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37 } |
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38 |
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39 n = read(file->fd, buf, size); |
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40 |
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41 if (n == -1) { |
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42 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "read() failed"); |
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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 += n; |
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47 |
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48 #endif |
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49 |
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50 file->offset += n; |
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51 |
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52 return n; |
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53 } |
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54 |
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55 |
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56 ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) |
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57 { |
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58 ssize_t n; |
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59 |
457 | 60 #if (NGX_PWRITE) |
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61 |
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62 n = pwrite(file->fd, buf, size, offset); |
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63 |
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64 if (n == -1) { |
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65 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "pwrite() failed"); |
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66 return NGX_ERROR; |
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67 } |
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68 |
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69 if ((size_t) n != size) { |
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70 ngx_log_error(NGX_LOG_CRIT, file->log, 0, |
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71 "pwrite() has written only %d of %d", n, size); |
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72 return NGX_ERROR; |
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73 } |
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74 |
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75 #else |
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76 |
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77 if (file->sys_offset != offset) { |
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78 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
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79 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); |
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80 return NGX_ERROR; |
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81 } |
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82 |
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83 file->sys_offset = offset; |
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84 } |
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85 |
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86 n = write(file->fd, buf, size); |
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87 |
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88 if (n == -1) { |
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89 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "write() failed"); |
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90 return NGX_ERROR; |
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91 } |
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92 |
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93 if ((size_t) n != size) { |
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94 ngx_log_error(NGX_LOG_CRIT, file->log, 0, |
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95 "write() has written only %d of %d", n, size); |
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96 return NGX_ERROR; |
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97 } |
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98 |
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99 file->sys_offset += n; |
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100 |
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101 #endif |
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102 |
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103 file->offset += n; |
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104 |
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105 return n; |
17ab1af8c3dd
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106 } |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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diff
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|
107 |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
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108 |
303
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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109 int ngx_open_tempfile(u_char *name, ngx_uint_t persistent) |
00c5660d2707
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110 { |
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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111 ngx_fd_t fd; |
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112 |
00c5660d2707
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113 fd = open((const char *) name, O_CREAT|O_EXCL|O_RDWR, 0600); |
00c5660d2707
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diff
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114 |
00c5660d2707
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115 if (fd != -1 && !persistent) { |
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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116 unlink((const char *) name); |
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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diff
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117 } |
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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parents:
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diff
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118 |
00c5660d2707
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119 return fd; |
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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parents:
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diff
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120 } |
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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parents:
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diff
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121 |
00c5660d2707
nginx-0.0.3-2004-04-01-20:20:53 import
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parents:
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diff
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122 |
170
c42be4185301
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parents:
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diff
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123 ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *cl, |
74
17ab1af8c3dd
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diff
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124 off_t offset, ngx_pool_t *pool) |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
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125 { |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
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parents:
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diff
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|
126 u_char *prev; |
74
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nginx-0.0.1-2003-04-11-20:01:14 import
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127 size_t size; |
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128 ssize_t n; |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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129 struct iovec *iov; |
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130 ngx_err_t err; |
17ab1af8c3dd
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131 ngx_array_t io; |
17ab1af8c3dd
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132 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
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parents:
343
diff
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|
133 /* use pwrite() if there's the only buf in a chain */ |
74
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
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134 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
154
diff
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|
135 if (cl->next == NULL) { |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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parents:
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diff
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136 return ngx_write_file(file, cl->buf->pos, |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
137 (size_t) (cl->buf->last - cl->buf->pos), |
194
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
191
diff
changeset
|
138 offset); |
74
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
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diff
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|
139 } |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
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|
140 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
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|
141 prev = NULL; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
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diff
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|
142 iov = NULL; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
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diff
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|
143 size = 0; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
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diff
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|
144 |
74
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
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|
145 ngx_init_array(io, pool, 10, sizeof(struct iovec), NGX_ERROR); |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
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|
146 |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
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|
147 /* create the iovec and coalesce the neighbouring bufs */ |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
154
diff
changeset
|
148 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
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|
149 while (cl) { |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
changeset
|
150 if (prev == cl->buf->pos) { |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
151 iov->iov_len += cl->buf->last - cl->buf->pos; |
74
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
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|
152 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
153 } else { |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
154 ngx_test_null(iov, ngx_push_array(&io), NGX_ERROR); |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
changeset
|
155 iov->iov_base = (void *) cl->buf->pos; |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
changeset
|
156 iov->iov_len = cl->buf->last - cl->buf->pos; |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
157 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
158 |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
changeset
|
159 size += cl->buf->last - cl->buf->pos; |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
changeset
|
160 prev = cl->buf->last; |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
154
diff
changeset
|
161 cl = cl->next; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
154
diff
changeset
|
162 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
163 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
164 /* use pwrite() if there's the only iovec buffer */ |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
165 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
166 if (io.nelts == 1) { |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
167 iov = io.elts; |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
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parents:
278
diff
changeset
|
168 return ngx_write_file(file, (u_char *) iov[0].iov_base, iov[0].iov_len, |
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
278
diff
changeset
|
169 offset); |
74
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
73
diff
changeset
|
170 } |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
73
diff
changeset
|
171 |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
190
diff
changeset
|
172 if (file->sys_offset != offset) { |
154
eac26585476e
nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
75
diff
changeset
|
173 if (lseek(file->fd, offset, SEEK_SET) == -1) { |
eac26585476e
nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
75
diff
changeset
|
174 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "lseek() failed"); |
eac26585476e
nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
75
diff
changeset
|
175 return NGX_ERROR; |
eac26585476e
nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
75
diff
changeset
|
176 } |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
190
diff
changeset
|
177 |
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
190
diff
changeset
|
178 file->sys_offset = offset; |
74
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
changeset
|
179 } |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
changeset
|
180 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
154
diff
changeset
|
181 n = writev(file->fd, io.elts, io.nelts); |
74
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
73
diff
changeset
|
182 |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
73
diff
changeset
|
183 if (n == -1) { |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
changeset
|
184 ngx_log_error(NGX_LOG_CRIT, file->log, ngx_errno, "writev() failed"); |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
73
diff
changeset
|
185 return NGX_ERROR; |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
73
diff
changeset
|
186 } |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
73
diff
changeset
|
187 |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
changeset
|
188 if ((size_t) n != size) { |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
changeset
|
189 ngx_log_error(NGX_LOG_CRIT, file->log, 0, |
17ab1af8c3dd
nginx-0.0.1-2003-04-11-20:01:14 import
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parents:
73
diff
changeset
|
190 "writev() has written only %d of %d", n, size); |
73
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
191 return NGX_ERROR; |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
192 } |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
193 |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
186
diff
changeset
|
194 file->sys_offset += n; |
73
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
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parents:
35
diff
changeset
|
195 file->offset += n; |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
196 |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
197 return n; |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
198 } |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
199 |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
35
diff
changeset
|
200 |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
182
diff
changeset
|
201 int ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir) |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
182
diff
changeset
|
202 { |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
278
diff
changeset
|
203 dir->dir = opendir((const char *) name->data); |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
182
diff
changeset
|
204 |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
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205 if (dir->dir == NULL) { |
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nginx-0.0.1-2003-11-17-00:49:42 import
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206 return NGX_ERROR; |
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nginx-0.0.1-2003-11-17-00:49:42 import
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207 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
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208 |
457 | 209 dir->valid_info = 0; |
186
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nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
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210 |
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nginx-0.0.1-2003-11-17-00:49:42 import
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211 return NGX_OK; |
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nginx-0.0.1-2003-11-17-00:49:42 import
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212 } |