Mercurial > hg > nginx-vendor-1-0
view src/core/ngx_crc.h @ 620:b4dcae568a2a NGINX_1_0_0
nginx 1.0.0
*) Bugfix: a cache manager might hog CPU after reload.
Thanks to Maxim Dounin.
*) Bugfix: an "image_filter crop" directive worked incorrectly coupled
with an "image_filter rotate 180" directive.
*) Bugfix: a "satisfy any" directive disabled custom 401 error page.
author | Igor Sysoev <http://sysoev.ru> |
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date | Tue, 12 Apr 2011 00:00:00 +0400 |
parents | fbf2b2f66c9f |
children | ad25218fd14b |
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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_ */