Mercurial > hg > nginx-ranges
view src/core/ngx_crc.h @ 296:2ceaee987f37 NGINX_0_5_18
nginx 0.5.18
*) Feature: the ngx_http_sub_filter_module.
*) Feature: the "$upstream_http_..." variables.
*) Feature: now the $upstream_status and $upstream_response_time
variables keep data about all upstreams before X-Accel-Redirect.
*) Bugfix: a segmentation fault occurred in master process after first
reconfiguration and receiving any signal if nginx was built with
ngx_http_perl_module and perl did not support multiplicity; bug
appeared in 0.5.9.
*) Bugfix: if perl did not support multiplicity, then after
reconfiguration perl code did not work; bug appeared in 0.3.38.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Thu, 19 Apr 2007 00:00:00 +0400 |
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_ */