Mercurial > hg > nginx
view src/core/ngx_crc.h @ 5423:5b5a486bd40e
SSL: fixed build with OpenSSL 0.9.7.
SSL_get_rbio() and SSL_get_wbio() functions used to get non-const pointer
in OpenSSL 0.9.7, hence an explicit cast added to drop const qualifier.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 14 Oct 2013 13:44:09 +0400 |
parents | d620f497c50f |
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_ */