annotate src/core/ngx_murmurhash.c @ 9232:9a0849fd4b46

MIME: changed type for deb files, added udeb files. Changed type for .deb files to application/vnd.debian.binary-package in accordance with man pages [1] and IANA [2]. Also added .udeb extension. This type is also used on update servers. Link for reference: [1] https://manpages.debian.org/bookworm/dpkg-dev/deb.5.en.html [2] https://www.iana.org/assignments/media-types/application/vnd.debian.binary-package
author Yuriy Izorkin <lafiel@elven.pw>
date Tue, 26 Mar 2024 21:30:08 +0300
parents f38647c651a8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3891
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
1
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
2 /*
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
3 * Copyright (C) Austin Appleby
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
4 */
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
5
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
6
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7 #include <ngx_config.h>
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #include <ngx_core.h>
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11 uint32_t
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
12 ngx_murmur_hash2(u_char *data, size_t len)
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13 {
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
14 uint32_t h, k;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
15
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
16 h = 0 ^ len;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
17
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
18 while (len >= 4) {
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
19 k = data[0];
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
20 k |= data[1] << 8;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
21 k |= data[2] << 16;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
22 k |= data[3] << 24;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
23
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
24 k *= 0x5bd1e995;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
25 k ^= k >> 24;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
26 k *= 0x5bd1e995;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
27
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
28 h *= 0x5bd1e995;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
29 h ^= k;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
30
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
31 data += 4;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
32 len -= 4;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
33 }
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
34
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
35 switch (len) {
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
36 case 3:
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
37 h ^= data[2] << 16;
6994
f38647c651a8 Added missing "fall through" comments (ticket #1259).
Maxim Dounin <mdounin@mdounin.ru>
parents: 3891
diff changeset
38 /* fall through */
3891
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
39 case 2:
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
40 h ^= data[1] << 8;
6994
f38647c651a8 Added missing "fall through" comments (ticket #1259).
Maxim Dounin <mdounin@mdounin.ru>
parents: 3891
diff changeset
41 /* fall through */
3891
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
42 case 1:
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
43 h ^= data[0];
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
44 h *= 0x5bd1e995;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
45 }
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
46
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
47 h ^= h >> 13;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
48 h *= 0x5bd1e995;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
49 h ^= h >> 15;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
50
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
51 return h;
203eb026ec07 ngx_murmur_hash2()
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
52 }