Mercurial > hg > nginx-vendor-1-0
view src/core/ngx_crc32.h @ 376:edf1cb6c328e NGINX_0_7_0
nginx 0.7.0
*) Change: now the 0x00-0x1F, '"' and '\' characters are escaped as
\xXX in an access_log.
Thanks to Maxim Dounin.
*) Change: now nginx allows several "Host" request header line.
*) Feature: the "modified" flag in the "expires" directive.
*) Feature: the $uid_got and $uid_set variables may be used at any
request processing stage.
*) Feature: the $hostname variable.
Thanks to Andrei Nigmatulin.
*) Feature: DESTDIR support.
Thanks to Todd A. Fisher and Andras Voroskoi.
*) Bugfix: a segmentation fault might occur in worker process on Linux,
if keepalive was enabled.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 19 May 2008 00:00:00 +0400 |
parents | b743d290eb3b |
children | ad25218fd14b |
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/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_CRC32_H_INCLUDED_ #define _NGX_CRC32_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> extern uint32_t *ngx_crc32_table_short; extern uint32_t ngx_crc32_table256[]; static ngx_inline uint32_t ngx_crc32_short(u_char *p, size_t len) { u_char c; uint32_t crc; crc = 0xffffffff; while (len--) { c = *p++; crc = ngx_crc32_table_short[(crc ^ (c & 0xf)) & 0xf] ^ (crc >> 4); crc = ngx_crc32_table_short[(crc ^ (c >> 4)) & 0xf] ^ (crc >> 4); } return crc ^ 0xffffffff; } static ngx_inline uint32_t ngx_crc32_long(u_char *p, size_t len) { uint32_t crc; crc = 0xffffffff; while (len--) { crc = ngx_crc32_table256[(crc ^ *p++) & 0xff] ^ (crc >> 8); } return crc ^ 0xffffffff; } #define ngx_crc32_init(crc) \ crc = 0xffffffff static ngx_inline void ngx_crc32_update(uint32_t *crc, u_char *p, size_t len) { uint32_t c; c = *crc; while (len--) { c = ngx_crc32_table256[(c ^ *p++) & 0xff] ^ (c >> 8); } *crc = c; } #define ngx_crc32_final(crc) \ crc ^= 0xffffffff ngx_int_t ngx_crc32_table_init(void); #endif /* _NGX_CRC32_H_INCLUDED_ */