nginx 0.3.36 *) Feature: the ngx_http_addition_filter_module. *) Feature: the "proxy_pass" and "fastcgi_pass" directives may be used inside the "if" block. *) Feature: the "proxy_ignore_client_abort" and "fastcgi_ignore_client_abort" directives. *) Feature: the "$request_completion" variable. *) Feature: the ngx_http_perl_module supports the $r->request_method and $r->remote_addr. *) Feature: the ngx_http_ssi_module supports the "elif" command. *) Bugfix: the "\/" string in the expression of the "if" command of the ngx_http_ssi_module was treated incorrectly. *) Bugfix: in the regular expressions in the "if" command of the ngx_http_ssi_module. *) Bugfix: if the relative path was specified in the "client_body_temp_path", "proxy_temp_path", "fastcgi_temp_path", and "perl_modules" directives, then the directory was used relatively to a current path but not to a server prefix.

/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_CRC_H_INCLUDED_
#define _NGX_CRC_H_INCLUDED_


/* 32-bit crc16 */

static ngx_inline uint32_t ngx_crc(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_ */