Mercurial > hg > nginx-vendor-current
annotate src/core/ngx_murmurhash.c @ 630:ad6fee8052d7 NGINX_1_0_5
nginx 1.0.5
*) Change: now default SSL ciphers are "HIGH:!aNULL:!MD5".
Thanks to Rob Stradling.
*) Feature: the "referer_hash_max_size" and "referer_hash_bucket_size"
directives.
Thanks to Witold Filipczyk.
*) Feature: $uid_reset variable.
*) Bugfix: a segmentation fault might occur in a worker process, if a
caching was used.
Thanks to Lanshun Zhou.
*) Bugfix: worker processes may got caught in an endless loop during
reconfiguration, if a caching was used; the bug had appeared in
0.8.48.
Thanks to Maxim Dounin.
*) Bugfix: "stalled cache updating" alert.
Thanks to Maxim Dounin.
| author | Igor Sysoev <http://sysoev.ru> |
|---|---|
| date | Tue, 19 Jul 2011 00:00:00 +0400 |
| parents | 8dc007eddbcf |
| children |
| rev | line source |
|---|---|
| 622 | 1 |
| 2 /* | |
| 3 * Copyright (C) Austin Appleby | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 | |
| 10 | |
| 11 uint32_t | |
| 12 ngx_murmur_hash2(u_char *data, size_t len) | |
| 13 { | |
| 14 uint32_t h, k; | |
| 15 | |
| 16 h = 0 ^ len; | |
| 17 | |
| 18 while (len >= 4) { | |
| 19 k = data[0]; | |
| 20 k |= data[1] << 8; | |
| 21 k |= data[2] << 16; | |
| 22 k |= data[3] << 24; | |
| 23 | |
| 24 k *= 0x5bd1e995; | |
| 25 k ^= k >> 24; | |
| 26 k *= 0x5bd1e995; | |
| 27 | |
| 28 h *= 0x5bd1e995; | |
| 29 h ^= k; | |
| 30 | |
| 31 data += 4; | |
| 32 len -= 4; | |
| 33 } | |
| 34 | |
| 35 switch (len) { | |
| 36 case 3: | |
| 37 h ^= data[2] << 16; | |
| 38 case 2: | |
| 39 h ^= data[1] << 8; | |
| 40 case 1: | |
| 41 h ^= data[0]; | |
| 42 h *= 0x5bd1e995; | |
| 43 } | |
| 44 | |
| 45 h ^= h >> 13; | |
| 46 h *= 0x5bd1e995; | |
| 47 h ^= h >> 15; | |
| 48 | |
| 49 return h; | |
| 50 } |