Mercurial > hg > nginx-vendor-current
view src/core/ngx_crc.h @ 628:83b58b182b76 NGINX_1_0_4
nginx 1.0.4
*) Change: now regular expressions case sensitivity in the "map"
directive is given by prefixes "~" or "~*".
*) Feature: now shared zones and caches use POSIX semaphores on Linux.
Thanks to Denis F. Latypoff.
*) Bugfix: "stalled" cache updating" alert.
*) Bugfix: nginx could not be built --without-http_auth_basic_module;
the bug had appeared in 1.0.3.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Wed, 01 Jun 2011 00:00:00 +0400 |
parents | fbf2b2f66c9f |
children | d0f7a625f27c |
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/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_CRC_H_INCLUDED_ #define _NGX_CRC_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> /* 32-bit crc16 */ static ngx_inline uint32_t ngx_crc(u_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_ */