annotate src/core/ngx_crc32.h @ 326:9fc4ab6673f9 NGINX_0_6_7

nginx 0.6.7 *) Change: now the paths specified in the "include", "auth_basic_user_file", "perl_modules", "ssl_certificate", "ssl_certificate_key", and "ssl_client_certificate" directives are relative to directory of nginx configuration file nginx.conf, but not to nginx prefix directory. *) Change: the --sysconfdir=PATH option in configure was canceled. *) Change: the special make target "upgrade1" was defined for online upgrade of 0.1.x versions. *) Feature: the "server_name" and "valid_referers" directives support regular expressions. *) Feature: the "server" directive in the "upstream" context supports the "backup" parameter. *) Feature: the ngx_http_perl_module supports the $r->discard_request_body. *) Feature: the "add_header Last-Modified ..." directive changes the "Last-Modified" response header line. *) Bugfix: if an response different than 200 was returned to an request with body and connection went to the keep-alive state after the request, then nginx returned 400 for the next request. *) Bugfix: a segmentation fault occurred in worker process if invalid address was set in the "auth_http" directive. *) Bugfix: now nginx uses default listen backlog value 511 on all platforms except FreeBSD. Thanks to Jiang Hong. *) Bugfix: a worker process may got caught in an endless loop, if an "server" inside "upstream" block was marked as "down"; bug appeared in 0.6.6. *) Bugfix: now Solaris sendfilev() is not used to transfer the client request body to FastCGI-server via the unix domain socket.
author Igor Sysoev <http://sysoev.ru>
date Wed, 15 Aug 2007 00:00:00 +0400
parents 6eb1e38f0f1f
children b743d290eb3b
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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(void);
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55 #endif /* _NGX_CRC32_H_INCLUDED_ */