annotate src/core/ngx_crc.h @ 466:9eda3153223b NGINX_0_7_45

nginx 0.7.45 *) Change: now the "proxy_cache" and the "proxy_cache_valid" can be set on different levels. *) Change: the "clean_time" parameter of the "proxy_cache_path" directive is canceled. *) Feature: the "max_size" parameter of the "proxy_cache_path" directive. *) Feature: the ngx_http_fastcgi_module preliminary cache support. *) Feature: now on shared memory allocation errors directive and zone names are logged. *) Bugfix: the directive "add_header last-modified ''" did not delete a "Last-Modified" response header line; the bug had appeared in 0.7.44. *) Bugfix: a relative path in the "auth_basic_user_file" directive given without variables did not work; the bug had appeared in 0.7.44. Thanks to Jerome Loyet. *) Bugfix: in an "alias" directive given using variables without references to captures of regular expressions; the bug had appeared in 0.7.42.
author Igor Sysoev <http://sysoev.ru>
date Mon, 30 Mar 2009 00:00:00 +0400
parents fbf2b2f66c9f
children d0f7a625f27c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
2 /*
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
3 * Copyright (C) Igor Sysoev
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
4 */
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
5
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
6
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
7 #ifndef _NGX_CRC_H_INCLUDED_
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
8 #define _NGX_CRC_H_INCLUDED_
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
9
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
10
250
fbf2b2f66c9f nginx 0.4.10
Igor Sysoev <http://sysoev.ru>
parents: 248
diff changeset
11 #include <ngx_config.h>
fbf2b2f66c9f nginx 0.4.10
Igor Sysoev <http://sysoev.ru>
parents: 248
diff changeset
12 #include <ngx_core.h>
fbf2b2f66c9f nginx 0.4.10
Igor Sysoev <http://sysoev.ru>
parents: 248
diff changeset
13
fbf2b2f66c9f nginx 0.4.10
Igor Sysoev <http://sysoev.ru>
parents: 248
diff changeset
14
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
15 /* 32-bit crc16 */
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
16
248
acd2ec3541cb nginx 0.4.9
Igor Sysoev <http://sysoev.ru>
parents: 16
diff changeset
17 static ngx_inline uint32_t
250
fbf2b2f66c9f nginx 0.4.10
Igor Sysoev <http://sysoev.ru>
parents: 248
diff changeset
18 ngx_crc(u_char *data, size_t len)
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
19 {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
20 uint32_t sum;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
21
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
22 for (sum = 0; len; len--) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
23
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
24 /*
248
acd2ec3541cb nginx 0.4.9
Igor Sysoev <http://sysoev.ru>
parents: 16
diff changeset
25 * gcc 2.95.2 x86 and icc 7.1.006 compile
acd2ec3541cb nginx 0.4.9
Igor Sysoev <http://sysoev.ru>
parents: 16
diff changeset
26 * that operator into the single "rol" opcode,
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
27 * msvc 6.0sp2 compiles it into four opcodes.
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
28 */
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
29 sum = sum >> 1 | sum << 31;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
30
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
31 sum += *data++;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
32 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
33
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
34 return sum;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
35 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
36
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
37
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
38 #endif /* _NGX_CRC_H_INCLUDED_ */