Mercurial > hg > nginx-vendor-0-8
view src/core/ngx_crc.h @ 6:80ba094c6b3e NGINX_0_1_3
nginx 0.1.3
*) Feature: the ngx_http_autoindex_module and the autoindex directive.
*) Feature: the proxy_set_x_url directive.
*) Bugfix: proxy module may get caught in an endless loop when sendfile
is not used.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 25 Oct 2004 00:00:00 +0400 |
parents | f0b350454894 |
children | 74b1868dd3cd |
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/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_CRC_H_INCLUDED_ #define _NGX_CRC_H_INCLUDED_ /* 32-bit crc16 */ ngx_inline static uint32_t ngx_crc(char *data, size_t len) { uint32_t sum; for (sum = 0; len; len--) { /* * gcc 2.95.2 x86 and icc 7.1.006 compile that operator * into the single "rol" opcode. * msvc 6.0sp2 compiles it into four opcodes. */ sum = sum >> 1 | sum << 31; sum += *data++; } return sum; } #endif /* _NGX_CRC_H_INCLUDED_ */