Mercurial > hg > nginx
annotate src/os/win32/ngx_errno.c @ 6733:adc2414856b1
Modules compatibility: compatibility with NGX_THREADS.
With this change it is now possible to load modules compiled without
the "--with-threads" configure option into nginx binary compiled with it,
and vice versa (if a module does not use thread-specific functions),
assuming both use the "--with-compat" option.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 10 Oct 2016 18:44:17 +0300 |
parents | f1a0de6eb505 |
children | 746567d633ac |
rev | line source |
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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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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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11 |
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12 u_char * |
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13 ngx_strerror(ngx_err_t err, u_char *errstr, size_t size) |
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14 { |
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15 u_int len; |
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16 static u_long lang = MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US); |
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17 |
461 | 18 if (size == 0) { |
19 return errstr; | |
20 } | |
21 | |
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22 len = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, |
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23 NULL, err, lang, (char *) errstr, size, NULL); |
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24 |
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25 if (len == 0 && lang && GetLastError() == ERROR_RESOURCE_LANG_NOT_FOUND) { |
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26 |
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27 /* |
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28 * Try to use English messages first and fallback to a language, |
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29 * based on locale: non-English Windows have no English messages |
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30 * at all. This way allows to use English messages at least on |
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31 * Windows with MUI. |
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32 */ |
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33 |
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34 lang = 0; |
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35 |
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36 len = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, |
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37 NULL, err, lang, (char *) errstr, size, NULL); |
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38 } |
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40 if (len == 0) { |
461 | 41 return ngx_snprintf(errstr, size, |
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42 "FormatMessage() error:(%d)", GetLastError()); |
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43 } |
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44 |
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45 /* remove ".\r\n\0" */ |
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46 while (errstr[len] == '\0' || errstr[len] == CR |
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47 || errstr[len] == LF || errstr[len] == '.') |
461 | 48 { |
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49 --len; |
461 | 50 } |
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51 |
461 | 52 return &errstr[++len]; |
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53 } |
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54 |
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55 |
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56 ngx_int_t |
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57 ngx_strerror_init(void) |
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58 { |
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59 return NGX_OK; |
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60 } |