Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_files.c @ 3644:5d3282cfc43c
fix a bug when ngx_cpymem() returns a cast type:
p = (type *) ngx_cpymem(...)
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 24 Jun 2010 15:17:06 +0000 |
parents | 4b4385492f2a |
children | 515d50917016 |
rev | line source |
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441
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nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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1 |
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2 /* |
444
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nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
42
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6 |
cd035a94e0b6
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7 #include <ngx_config.h> |
100
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8 #include <ngx_core.h> |
8
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9 |
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10 |
2628
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win32 ngx_open_file() supports utf8 names and NGX_FILE_APPEND
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11 #define NGX_UTF16_BUFLEN 256 |
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12 |
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13 static u_short *ngx_utf8_to_utf16(u_short *utf16, u_char *utf8, size_t *len); |
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14 |
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15 |
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16 /* FILE_FLAG_BACKUP_SEMANTICS allows to obtain a handle to a directory */ |
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17 |
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18 ngx_fd_t |
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19 ngx_open_file(u_char *name, u_long mode, u_long create, u_long access) |
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20 { |
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21 size_t len; |
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22 u_long n; |
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23 u_short *u, *lu; |
3137
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preserve errno while ngx_free()
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24 ngx_fd_t fd; |
179f6dfcb7fe
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25 ngx_err_t err; |
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26 u_short utf16[NGX_UTF16_BUFLEN]; |
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27 |
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28 len = NGX_UTF16_BUFLEN; |
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29 u = ngx_utf8_to_utf16(utf16, name, &len); |
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30 |
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31 if (u == NULL) { |
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32 return INVALID_HANDLE_VALUE; |
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33 } |
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34 |
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35 fd = INVALID_HANDLE_VALUE; |
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36 lu = NULL; |
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37 |
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38 if (create == NGX_FILE_OPEN) { |
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39 |
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40 lu = malloc(len * 2); |
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41 if (lu == NULL) { |
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42 goto failed; |
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43 } |
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44 |
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45 n = GetLongPathNameW(u, lu, len); |
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46 |
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47 if (n == 0) { |
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48 goto failed; |
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49 } |
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50 |
3458
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compare long file names in case-insensitive mode,
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51 if (n != len - 1 || _wcsicmp(u, lu) != 0) { |
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52 ngx_set_errno(NGX_ENOENT); |
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53 goto failed; |
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54 } |
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55 } |
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56 |
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57 fd = CreateFileW(u, mode, |
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58 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, |
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59 NULL, create, FILE_FLAG_BACKUP_SEMANTICS, NULL); |
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60 |
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61 failed: |
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62 |
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63 err = ngx_errno; |
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64 |
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65 if (lu) { |
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66 ngx_free(lu); |
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67 } |
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68 |
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69 if (u != utf16) { |
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70 ngx_free(u); |
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71 } |
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72 |
3417
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73 ngx_set_errno(err); |
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74 |
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75 return fd; |
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76 } |
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77 |
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78 |
561 | 79 ssize_t |
80 ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
8
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81 { |
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82 u_long n; |
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83 ngx_err_t err; |
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84 OVERLAPPED ovlp, *povlp; |
8
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85 |
3156 | 86 ovlp.Internal = 0; |
87 ovlp.InternalHigh = 0; | |
88 ovlp.Offset = (u_long) offset; | |
89 ovlp.OffsetHigh = (u_long) (offset >> 32); | |
90 ovlp.hEvent = NULL; | |
461 | 91 |
3156 | 92 povlp = &ovlp; |
184
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93 |
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94 if (ReadFile(file->fd, buf, size, &n, povlp) == 0) { |
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95 err = ngx_errno; |
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96 |
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97 if (err == ERROR_HANDLE_EOF) { |
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98 return 0; |
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99 } |
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100 |
3157
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101 ngx_log_error(NGX_LOG_ERR, file->log, err, |
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102 "ReadFile() \"%s\" failed", file->name.data); |
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103 return NGX_ERROR; |
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104 } |
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105 |
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106 file->offset += n; |
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107 |
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108 return n; |
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109 } |
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110 |
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111 |
561 | 112 ssize_t |
113 ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) | |
184
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114 { |
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115 u_long n; |
184
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116 OVERLAPPED ovlp, *povlp; |
183
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117 |
3156 | 118 ovlp.Internal = 0; |
119 ovlp.InternalHigh = 0; | |
120 ovlp.Offset = (u_long) offset; | |
121 ovlp.OffsetHigh = (u_long) (offset >> 32); | |
122 ovlp.hEvent = NULL; | |
183
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123 |
3156 | 124 povlp = &ovlp; |
183
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125 |
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126 if (WriteFile(file->fd, buf, size, &n, povlp) == 0) { |
3157
a2c1b4f74ea7
log file name for read/write errors
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3156
diff
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|
127 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
a2c1b4f74ea7
log file name for read/write errors
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diff
changeset
|
128 "WriteFile() \"%s\" failed", file->name.data); |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
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parents:
123
diff
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|
129 return NGX_ERROR; |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
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parents:
123
diff
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|
130 } |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
123
diff
changeset
|
131 |
3158 | 132 if (n != size) { |
133 ngx_log_error(NGX_LOG_CRIT, file->log, 0, | |
134 "WriteFile() \"%s\" has written only %ul of %uz", | |
135 file->name.data, n, size); | |
136 return NGX_ERROR; | |
137 } | |
138 | |
182
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
123
diff
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|
139 file->offset += n; |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
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parents:
123
diff
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|
140 |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
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parents:
123
diff
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141 return n; |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
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parents:
123
diff
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|
142 } |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
123
diff
changeset
|
143 |
3c49eaf3f522
nginx-0.0.1-2003-11-13-09:14:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
123
diff
changeset
|
144 |
561 | 145 ssize_t |
146 ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *cl, off_t offset, | |
147 ngx_pool_t *pool) | |
184
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parents:
183
diff
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|
148 { |
292
a472bfb778b3
nginx-0.0.3-2004-03-17-00:26:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
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|
149 u_char *buf, *prev; |
184
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183
diff
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|
150 size_t size; |
1bf718ce0dde
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parents:
183
diff
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|
151 ssize_t total, n; |
1bf718ce0dde
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parents:
183
diff
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|
152 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
183
diff
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153 total = 0; |
1bf718ce0dde
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183
diff
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154 |
1bf718ce0dde
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parents:
183
diff
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|
155 while (cl) { |
343
6bdf858bff8c
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156 buf = cl->buf->pos; |
184
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parents:
183
diff
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157 prev = buf; |
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183
diff
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158 size = 0; |
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183
diff
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159 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
160 /* coalesce the neighbouring bufs */ |
184
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parents:
183
diff
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|
161 |
343
6bdf858bff8c
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292
diff
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162 while (cl && prev == cl->buf->pos) { |
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163 size += cl->buf->last - cl->buf->pos; |
6bdf858bff8c
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292
diff
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|
164 prev = cl->buf->last; |
184
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parents:
183
diff
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165 cl = cl->next; |
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183
diff
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166 } |
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183
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|
167 |
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183
diff
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|
168 n = ngx_write_file(file, buf, size, offset); |
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183
diff
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|
169 |
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183
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|
170 if (n == NGX_ERROR) { |
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diff
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171 return NGX_ERROR; |
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183
diff
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|
172 } |
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183
diff
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|
173 |
1bf718ce0dde
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parents:
183
diff
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|
174 total += n; |
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183
diff
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|
175 offset += n; |
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183
diff
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|
176 } |
1bf718ce0dde
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parents:
183
diff
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|
177 |
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183
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178 return total; |
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183
diff
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|
179 } |
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parents:
183
diff
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|
180 |
1bf718ce0dde
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parents:
183
diff
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|
181 |
1634
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|
182 ssize_t |
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183 ngx_read_fd(ngx_fd_t fd, void *buf, size_t size) |
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184 { |
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185 u_long n; |
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186 |
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187 if (ReadFile(fd, buf, size, &n, NULL) != 0) { |
d3cbb96818f1
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|
188 return (size_t) n; |
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189 } |
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190 |
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|
191 return -1; |
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|
192 } |
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|
193 |
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|
194 |
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|
195 ssize_t |
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fix win32 ngx_read_fd() and ngx_write_fd()
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|
196 ngx_write_fd(ngx_fd_t fd, void *buf, size_t size) |
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fix win32 ngx_read_fd() and ngx_write_fd()
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|
197 { |
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|
198 u_long n; |
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|
199 |
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fix win32 ngx_read_fd() and ngx_write_fd()
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|
200 if (WriteFile(fd, buf, size, &n, NULL) != 0) { |
d3cbb96818f1
fix win32 ngx_read_fd() and ngx_write_fd()
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|
201 return (size_t) n; |
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|
202 } |
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fix win32 ngx_read_fd() and ngx_write_fd()
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diff
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|
203 |
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fix win32 ngx_read_fd() and ngx_write_fd()
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|
204 return -1; |
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fix win32 ngx_read_fd() and ngx_write_fd()
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diff
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|
205 } |
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fix win32 ngx_read_fd() and ngx_write_fd()
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|
206 |
d3cbb96818f1
fix win32 ngx_read_fd() and ngx_write_fd()
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parents:
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diff
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|
207 |
2769
9d986c4e796f
introduce ngx_write_console() to support OEM code pages
Igor Sysoev <igor@sysoev.ru>
parents:
2687
diff
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|
208 ssize_t |
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introduce ngx_write_console() to support OEM code pages
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diff
changeset
|
209 ngx_write_console(ngx_fd_t fd, void *buf, size_t size) |
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|
210 { |
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|
211 u_long n; |
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|
212 |
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changeset
|
213 (void) CharToOemBuff(buf, buf, size); |
9d986c4e796f
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diff
changeset
|
214 |
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introduce ngx_write_console() to support OEM code pages
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changeset
|
215 if (WriteFile(fd, buf, size, &n, NULL) != 0) { |
9d986c4e796f
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|
216 return (size_t) n; |
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|
217 } |
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|
218 |
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|
219 return -1; |
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changeset
|
220 } |
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changeset
|
221 |
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|
222 |
3382
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fix Win32 error messages when an temporary file replaces an existent file:
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3200
diff
changeset
|
223 ngx_err_t |
1693
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use malloc() in ngx_win32_rename_file, set crit level instead of error
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parents:
1634
diff
changeset
|
224 ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_log_t *log) |
184
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183
diff
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|
225 { |
499 | 226 u_char *name; |
3382
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changeset
|
227 ngx_err_t err; |
499 | 228 ngx_uint_t collision; |
229 ngx_atomic_uint_t num; | |
184
1bf718ce0dde
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183
diff
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|
230 |
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use malloc() in ngx_win32_rename_file, set crit level instead of error
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diff
changeset
|
231 name = ngx_alloc(to->len + 1 + 10 + 1 + sizeof("DELETE"), log); |
501 | 232 if (name == NULL) { |
3382
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fix Win32 error messages when an temporary file replaces an existent file:
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|
233 return NGX_ENOMEM; |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
185
diff
changeset
|
234 } |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
185
diff
changeset
|
235 |
184
1bf718ce0dde
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183
diff
changeset
|
236 ngx_memcpy(name, to->data, to->len); |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
183
diff
changeset
|
237 |
1bf718ce0dde
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183
diff
changeset
|
238 collision = 0; |
1bf718ce0dde
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183
diff
changeset
|
239 |
1bf718ce0dde
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183
diff
changeset
|
240 /* mutex_lock() (per cache or single ?) */ |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
183
diff
changeset
|
241 |
499 | 242 for ( ;; ) { |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
183
diff
changeset
|
243 num = ngx_next_temp_number(collision); |
1bf718ce0dde
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Igor Sysoev <igor@sysoev.ru>
parents:
183
diff
changeset
|
244 |
2900
812445a822e3
add trailing zero to a file name
Igor Sysoev <igor@sysoev.ru>
parents:
2782
diff
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245 ngx_sprintf(name + to->len, ".%0muA.DELETE%Z", num); |
184
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246 |
499 | 247 if (MoveFile((const char *) to->data, (const char *) name) != 0) { |
248 break; | |
184
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249 } |
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250 |
499 | 251 collision = 1; |
252 | |
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253 ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, |
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254 "MoveFile() \"%s\" to \"%s\" failed", to->data, name); |
499 | 255 } |
184
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256 |
292
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257 if (MoveFile((const char *) from->data, (const char *) to->data) == 0) { |
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258 err = ngx_errno; |
186
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259 |
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260 } else { |
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261 err = 0; |
186
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262 } |
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263 |
1051 | 264 if (DeleteFile((const char *) name) == 0) { |
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265 ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, |
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266 "DeleteFile() \"%s\" failed", name); |
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267 } |
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268 |
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269 /* mutex_unlock() */ |
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270 |
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271 ngx_free(name); |
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272 |
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273 return err; |
184
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274 } |
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275 |
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276 |
561 | 277 ngx_int_t |
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278 ngx_file_info(u_char *file, ngx_file_info_t *sb) |
185
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279 { |
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280 size_t len; |
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281 long rc; |
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282 u_short *u; |
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283 ngx_err_t err; |
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284 WIN32_FILE_ATTRIBUTE_DATA fa; |
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285 u_short utf16[NGX_UTF16_BUFLEN]; |
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286 |
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287 len = NGX_UTF16_BUFLEN; |
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288 |
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289 u = ngx_utf8_to_utf16(utf16, file, &len); |
185
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290 |
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291 if (u == NULL) { |
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292 return NGX_FILE_ERROR; |
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293 } |
185
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294 |
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295 rc = GetFileAttributesExW(u, GetFileExInfoStandard, &fa); |
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296 |
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297 if (u != utf16) { |
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298 err = ngx_errno; |
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299 ngx_free(u); |
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300 ngx_set_errno(err); |
185
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301 } |
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302 |
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303 sb->dwFileAttributes = fa.dwFileAttributes; |
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304 sb->ftCreationTime = fa.ftCreationTime; |
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305 sb->ftLastAccessTime = fa.ftLastAccessTime; |
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306 sb->ftLastWriteTime = fa.ftLastWriteTime; |
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307 sb->nFileSizeHigh = fa.nFileSizeHigh; |
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308 sb->nFileSizeLow = fa.nFileSizeLow; |
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309 |
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310 return rc; |
185
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311 } |
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312 |
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313 |
561 | 314 ngx_int_t |
681 | 315 ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s) |
316 { | |
317 uint64_t intervals; | |
318 FILETIME ft; | |
319 | |
320 /* 116444736000000000 is commented in src/os/win32/ngx_time.c */ | |
321 | |
322 intervals = s * 10000000 + 116444736000000000; | |
323 | |
324 ft.dwLowDateTime = (DWORD) intervals; | |
325 ft.dwHighDateTime = (DWORD) (intervals >> 32); | |
326 | |
327 if (SetFileTime(fd, NULL, NULL, &ft) != 0) { | |
328 return NGX_OK; | |
329 } | |
330 | |
331 return NGX_ERROR; | |
332 } | |
333 | |
334 | |
2259 | 335 char * |
336 ngx_realpath(u_char *path, u_char *resolved) | |
337 { | |
338 /* STUB */ | |
339 return (char *) path; | |
340 } | |
341 | |
342 | |
561 | 343 ngx_int_t |
344 ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir) | |
186
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345 { |
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346 ngx_cpystrn(name->data + name->len, NGX_DIR_MASK, NGX_DIR_MASK_LEN + 1); |
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347 |
727 | 348 dir->dir = FindFirstFile((const char *) name->data, &dir->finddata); |
577 | 349 |
186
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350 if (dir->dir == INVALID_HANDLE_VALUE) { |
577 | 351 return NGX_ERROR; |
186
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352 } |
577 | 353 |
457 | 354 dir->valid_info = 1; |
186
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355 dir->ready = 1; |
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356 |
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357 return NGX_OK; |
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358 } |
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359 |
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360 |
561 | 361 ngx_int_t |
362 ngx_read_dir(ngx_dir_t *dir) | |
186
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363 { |
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364 if (dir->ready) { |
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365 dir->ready = 0; |
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366 return NGX_OK; |
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367 } |
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368 |
727 | 369 if (FindNextFile(dir->dir, &dir->finddata) != 0) { |
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370 dir->type = 1; |
681 | 371 return NGX_OK; |
186
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372 } |
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373 |
681 | 374 return NGX_ERROR; |
186
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375 } |
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376 |
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377 |
501 | 378 ngx_int_t |
727 | 379 ngx_open_glob(ngx_glob_t *gl) |
380 { | |
2459 | 381 u_char *p; |
382 size_t len; | |
383 ngx_err_t err; | |
1632 | 384 |
727 | 385 gl->dir = FindFirstFile((const char *) gl->pattern, &gl->finddata); |
386 | |
387 if (gl->dir == INVALID_HANDLE_VALUE) { | |
1980 | 388 |
2459 | 389 err = ngx_errno; |
390 | |
391 if ((err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND) | |
392 && gl->test) | |
393 { | |
1980 | 394 gl->no_match = 1; |
395 return NGX_OK; | |
396 } | |
397 | |
727 | 398 return NGX_ERROR; |
399 } | |
400 | |
1632 | 401 for (p = gl->pattern; *p; p++) { |
402 if (*p == '/') { | |
403 gl->last = p + 1 - gl->pattern; | |
404 } | |
405 } | |
406 | |
407 len = ngx_strlen(gl->finddata.cFileName); | |
408 gl->name.len = gl->last + len; | |
409 | |
410 gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); | |
411 if (gl->name.data == NULL) { | |
412 return NGX_ERROR; | |
413 } | |
414 | |
415 ngx_memcpy(gl->name.data, gl->pattern, gl->last); | |
416 ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, | |
417 len + 1); | |
418 | |
727 | 419 gl->ready = 1; |
420 | |
421 return NGX_OK; | |
422 } | |
423 | |
424 | |
425 ngx_int_t | |
426 ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name) | |
427 { | |
1632 | 428 size_t len; |
727 | 429 ngx_err_t err; |
430 | |
1980 | 431 if (gl->no_match) { |
432 return NGX_DONE; | |
433 } | |
434 | |
727 | 435 if (gl->ready) { |
1632 | 436 *name = gl->name; |
727 | 437 |
438 gl->ready = 0; | |
439 return NGX_OK; | |
440 } | |
441 | |
1632 | 442 ngx_free(gl->name.data); |
443 gl->name.data = NULL; | |
444 | |
727 | 445 if (FindNextFile(gl->dir, &gl->finddata) != 0) { |
1632 | 446 |
447 len = ngx_strlen(gl->finddata.cFileName); | |
448 gl->name.len = gl->last + len; | |
449 | |
450 gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); | |
451 if (gl->name.data == NULL) { | |
452 return NGX_ERROR; | |
453 } | |
454 | |
455 ngx_memcpy(gl->name.data, gl->pattern, gl->last); | |
456 ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, | |
457 len + 1); | |
458 | |
459 *name = gl->name; | |
727 | 460 |
461 return NGX_OK; | |
462 } | |
463 | |
464 err = ngx_errno; | |
465 | |
466 if (err == NGX_ENOMOREFILES) { | |
467 return NGX_DONE; | |
468 } | |
469 | |
470 ngx_log_error(NGX_LOG_ALERT, gl->log, err, | |
471 "FindNextFile(%s) failed", gl->pattern); | |
472 | |
473 return NGX_ERROR; | |
474 } | |
475 | |
476 | |
477 void | |
478 ngx_close_glob(ngx_glob_t *gl) | |
479 { | |
1632 | 480 if (gl->name.data) { |
481 ngx_free(gl->name.data); | |
482 } | |
483 | |
1980 | 484 if (gl->dir == INVALID_HANDLE_VALUE) { |
485 return; | |
486 } | |
487 | |
1632 | 488 if (FindClose(gl->dir) == 0) { |
727 | 489 ngx_log_error(NGX_LOG_ALERT, gl->log, ngx_errno, |
490 "FindClose(%s) failed", gl->pattern); | |
491 } | |
492 } | |
493 | |
494 | |
495 ngx_int_t | |
501 | 496 ngx_de_info(u_char *name, ngx_dir_t *dir) |
497 { | |
498 return NGX_OK; | |
499 } | |
500 | |
501 | |
502 ngx_int_t | |
503 ngx_de_link_info(u_char *name, ngx_dir_t *dir) | |
504 { | |
505 return NGX_OK; | |
506 } | |
507 | |
508 | |
561 | 509 ngx_int_t |
3178 | 510 ngx_read_ahead(ngx_fd_t fd, size_t n) |
511 { | |
512 return ~NGX_FILE_ERROR; | |
513 } | |
514 | |
515 | |
516 ngx_int_t | |
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517 ngx_directio_on(ngx_fd_t fd) |
2134
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518 { |
3164
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519 return ~NGX_FILE_ERROR; |
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520 } |
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521 |
2615 | 522 |
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523 ngx_int_t |
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524 ngx_directio_off(ngx_fd_t fd) |
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525 { |
3164
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526 return ~NGX_FILE_ERROR; |
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527 } |
2615 | 528 |
529 | |
530 size_t | |
531 ngx_fs_bsize(u_char *name) | |
532 { | |
533 u_char root[4]; | |
534 u_long sc, bs, nfree, ncl; | |
535 | |
536 if (name[2] == ':') { | |
537 ngx_cpystrn(root, name, 4); | |
538 name = root; | |
539 } | |
540 | |
541 if (GetDiskFreeSpace((const char *) name, &sc, &bs, &nfree, &ncl) == 0) { | |
542 return 512; | |
543 } | |
544 | |
545 return sc * bs; | |
546 } | |
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547 |
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548 |
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549 static u_short * |
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550 ngx_utf8_to_utf16(u_short *utf16, u_char *utf8, size_t *len) |
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551 { |
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552 u_char *p; |
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553 u_short *u, *last; |
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554 uint32_t n; |
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555 |
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556 p = utf8; |
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557 u = utf16; |
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558 last = utf16 + *len; |
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559 |
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560 while (u < last) { |
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561 |
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562 if (*p < 0x80) { |
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563 *u++ = (u_short) *p; |
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564 |
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565 if (*p == 0) { |
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566 *len = u - utf16; |
2628
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567 return utf16; |
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568 } |
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569 |
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570 p++; |
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571 |
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572 continue; |
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573 } |
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574 |
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575 n = ngx_utf8_decode(&p, 4); |
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576 |
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577 if (n > 0xffff) { |
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578 ngx_set_errno(NGX_EILSEQ); |
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579 return NULL; |
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580 } |
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581 |
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582 *u++ = (u_short) n; |
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583 } |
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584 |
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585 /* the given buffer is not enough, allocate a new one */ |
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586 |
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587 u = malloc(((p - utf8) + ngx_strlen(p) + 1) * sizeof(u_short)); |
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588 if (u == NULL) { |
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589 return NULL; |
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590 } |
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591 |
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592 ngx_memcpy(u, utf16, *len * 2); |
2628
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changeset
|
593 |
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594 utf16 = u; |
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595 u += *len; |
2628
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|
596 |
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597 for ( ;; ) { |
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changeset
|
598 |
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changeset
|
599 if (*p < 0x80) { |
3417
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|
600 *u++ = (u_short) *p; |
2628
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changeset
|
601 |
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|
602 if (*p == 0) { |
3417
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603 *len = u - utf16; |
2628
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|
604 return utf16; |
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|
605 } |
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changeset
|
606 |
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|
607 p++; |
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changeset
|
608 |
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|
609 continue; |
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|
610 } |
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changeset
|
611 |
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|
612 n = ngx_utf8_decode(&p, 4); |
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|
613 |
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changeset
|
614 if (n > 0xffff) { |
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|
615 free(utf16); |
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|
616 ngx_set_errno(NGX_EILSEQ); |
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|
617 return NULL; |
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|
618 } |
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|
619 |
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|
620 *u++ = (u_short) n; |
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|
621 } |
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changeset
|
622 |
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|
623 /* unreachable */ |
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|
624 } |