Mercurial > hg > nginx-vendor-current
view src/core/ngx_crc32.h @ 646:615b5ea36fc0 NGINX_1_1_7
nginx 1.1.7
*) Feature: support of several resolvers in the "resolver" directive.
Thanks to Kirill A. Korinskiy.
*) Bugfix: a segmentation fault occurred on start or while
reconfiguration if the "ssl" directive was used at http level and
there was no "ssl_certificate" defined.
*) Bugfix: reduced memory consumption while proxying of big files if
they were buffered to disk.
*) Bugfix: a segmentation fault might occur in a worker process if
"proxy_http_version 1.1" directive was used.
*) Bugfix: in the "expires @time" directive.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 31 Oct 2011 00:00:00 +0400 |
parents | b743d290eb3b |
children | d0f7a625f27c |
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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_ */