Mercurial > hg > nginx-vendor-current
annotate src/core/ngx_crc.h @ 664:f5b859b2f097 NGINX_1_1_16
nginx 1.1.16
*) Change: the simultaneous subrequest limit has been raised to 200.
*) Feature: the "from" parameter of the "disable_symlinks" directive.
*) Feature: the "return" and "error_page" directives can be used to
return 307 redirections.
*) Bugfix: a segmentation fault might occur in a worker process if the
"resolver" directive was used and there was no "error_log" directive
specified at global level.
Thanks to Roman Arutyunyan.
*) Bugfix: a segmentation fault might occur in a worker process if the
"proxy_http_version 1.1" or "fastcgi_keep_conn on" directives were
used.
*) Bugfix: memory leaks.
Thanks to Lanshun Zhou.
*) Bugfix: in the "disable_symlinks" directive.
*) Bugfix: on ZFS filesystem disk cache size might be calculated
incorrectly; the bug had appeared in 1.0.1.
*) Bugfix: nginx could not be built by the icc 12.1 compiler.
*) Bugfix: nginx could not be built by gcc on Solaris; the bug had
appeared in 1.1.15.
author | Igor Sysoev <http://sysoev.ru> |
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date | Wed, 29 Feb 2012 00:00:00 +0400 |
parents | d0f7a625f27c |
children |
rev | line source |
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0 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
660 | 4 * Copyright (C) Nginx, Inc. |
0 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_CRC_H_INCLUDED_ | |
9 #define _NGX_CRC_H_INCLUDED_ | |
10 | |
11 | |
250 | 12 #include <ngx_config.h> |
13 #include <ngx_core.h> | |
14 | |
15 | |
0 | 16 /* 32-bit crc16 */ |
17 | |
248 | 18 static ngx_inline uint32_t |
250 | 19 ngx_crc(u_char *data, size_t len) |
0 | 20 { |
21 uint32_t sum; | |
22 | |
23 for (sum = 0; len; len--) { | |
24 | |
25 /* | |
248 | 26 * gcc 2.95.2 x86 and icc 7.1.006 compile |
27 * that operator into the single "rol" opcode, | |
0 | 28 * msvc 6.0sp2 compiles it into four opcodes. |
29 */ | |
30 sum = sum >> 1 | sum << 31; | |
31 | |
32 sum += *data++; | |
33 } | |
34 | |
35 return sum; | |
36 } | |
37 | |
38 | |
39 #endif /* _NGX_CRC_H_INCLUDED_ */ |