Mercurial > hg > nginx-vendor-0-8
annotate src/core/ngx_crc.h @ 54:bcb5fce0b038 NGINX_0_1_27
nginx 0.1.27
*) Feature: the "blocked" parameter of the "valid_referers" directive.
*) Change: the errors while handling the request header now logged at
"info" level. The server name and the "Host" and "Referer" header
lines also logged.
*) Change: the "Host" header line is also logged in error log.
*) Feature: the proxy_pass_unparsed_uri directive. The special handling
of the "://" symbols in URI, appeared in 0.1.11 version, now is
canceled.
*) Bugfix: nginx could not be built on FreeBSD and Linux, if the
--without-ngx_http_auth_basic_module configuration parameter was
used.
| author | Igor Sysoev <http://sysoev.ru> |
|---|---|
| date | Mon, 28 Mar 2005 00:00:00 +0400 |
| parents | 74b1868dd3cd |
| children | acd2ec3541cb |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #ifndef _NGX_CRC_H_INCLUDED_ | |
| 8 #define _NGX_CRC_H_INCLUDED_ | |
| 9 | |
| 10 | |
| 11 /* 32-bit crc16 */ | |
| 12 | |
| 16 | 13 static ngx_inline uint32_t ngx_crc(char *data, size_t len) |
| 0 | 14 { |
| 15 uint32_t sum; | |
| 16 | |
| 17 for (sum = 0; len; len--) { | |
| 18 | |
| 19 /* | |
| 20 * gcc 2.95.2 x86 and icc 7.1.006 compile that operator | |
| 21 * into the single "rol" opcode. | |
| 22 * msvc 6.0sp2 compiles it into four opcodes. | |
| 23 */ | |
| 24 sum = sum >> 1 | sum << 31; | |
| 25 | |
| 26 sum += *data++; | |
| 27 } | |
| 28 | |
| 29 return sum; | |
| 30 } | |
| 31 | |
| 32 | |
| 33 #endif /* _NGX_CRC_H_INCLUDED_ */ |