annotate src/core/ngx_crc32.h @ 262:e0b1d0a6c629 NGINX_0_5_1

nginx 0.5.1 *) Bugfix: the "post_action" directive might not run after a unsuccessful completion of a request. *) Workaround: for Eudora for Mac; bug appeared in 0.4.11. Thanks to Bron Gondwana. *) Bugfix: if the "upstream" name was used in the "fastcgi_pass", then the message "no port in upstream" was issued; bug appeared in 0.5.0. *) Bugfix: if the "proxy_pass" and "fastcgi_pass" directives used the same servers but different ports, then these directives uses the first described port; bug appeared in 0.5.0. *) Bugfix: if the "proxy_pass" and "fastcgi_pass" directives used the unix domain sockets, then these directives used first described socket; bug appeared in 0.5.0. *) Bugfix: ngx_http_auth_basic_module ignored the user if it was in the last line in the password file and there was no the carriage return, the line feed, or the ":" symbol after the password. *) Bugfix: the $upstream_response_time variable might be equal to "0.000", although response time was more than 1 millisecond.
author Igor Sysoev <http://sysoev.ru>
date Mon, 11 Dec 2006 00:00:00 +0300
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children 6eb1e38f0f1f
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #ifndef _NGX_CRC32_H_INCLUDED_
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8 #define _NGX_CRC32_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 extern uint32_t *ngx_crc32_table_short;
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16 extern uint32_t ngx_crc32_table256[];
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19 static ngx_inline uint32_t
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20 ngx_crc32_short(u_char *p, size_t len)
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21 {
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22 u_char c;
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23 uint32_t crc;
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25 crc = 0xffffffff;
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27 while (len--) {
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28 c = *p++;
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29 crc = ngx_crc32_table_short[(crc ^ (c & 0xf)) & 0xf] ^ (crc >> 4);
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30 crc = ngx_crc32_table_short[(crc ^ (c >> 4)) & 0xf] ^ (crc >> 4);
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31 }
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33 return crc ^ 0xffffffff;
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34 }
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37 static ngx_inline uint32_t
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38 ngx_crc32_long(u_char *p, size_t len)
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39 {
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40 uint32_t crc;
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42 crc = 0xffffffff;
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44 while (len--) {
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45 crc = ngx_crc32_table256[(crc ^ *p++) & 0xff] ^ (crc >> 8);
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46 }
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48 return crc ^ 0xffffffff;
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49 }
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52 ngx_int_t ngx_crc32_init(ngx_pool_t *pool);
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55 #endif /* _NGX_CRC32_H_INCLUDED_ */