Mercurial > hg > nginx-quic
view src/core/ngx_crc.h @ 4513:2dfa4d76e4c5 stable-1.0
Merge of r4491, r4492:
*) Renamed constants and fixed off-by-one error in "msie_padding on"
handling.
*) Added support for the 307 Temporary Redirect.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 05 Mar 2012 13:03:39 +0000 |
parents | 4919fb357a5d |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #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_ */