Mercurial > hg > nginx-vendor-0-8
view src/core/ngx_crc.h @ 270:6eb1e38f0f1f NGINX_0_5_5
nginx 0.5.5
*) Change: the -v switch does not show compiler information any more.
*) Feature: the -V switch.
*) Feature: the "worker_rlimit_core" directive supports size in K, M,
and G.
*) Bugfix: the nginx.pm module now could be installed by an
unprivileged user.
*) Bugfix: a segmentation fault might occur if the $r->request_body or
$r->request_body_file methods were used.
*) Bugfix: the ppc platform specific bugs.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Sun, 24 Dec 2006 00:00:00 +0300 |
parents | fbf2b2f66c9f |
children |
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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_ */