Merge lp:~tangent-org/libmemcached/1.0-build/ Build: jenkins-Libmemcached-187
[m6w6/libmemcached] / libhashkit / has.cc
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * HashKit library
4 *
5 * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
6 * Copyright (C) 2009 Brian Aker All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met:
11 *
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * * Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following disclaimer
17 * in the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * * The names of its contributors may not be used to endorse or
21 * promote products derived from this software without specific prior
22 * written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 *
36 */
37
38
39 #include <libhashkit/common.h>
40
41 bool libhashkit_has_algorithm(const hashkit_hash_algorithm_t algo)
42 {
43 switch (algo)
44 {
45 case HASHKIT_HASH_FNV1_64:
46 case HASHKIT_HASH_FNV1A_64:
47 #if __WORDSIZE == 64 && defined(HAVE_FNV64_HASH)
48 return true;
49 #else
50 return false;
51 #endif
52
53 case HASHKIT_HASH_HSIEH:
54 #ifdef HAVE_HSIEH_HASH
55 return true;
56 #else
57 return false;
58 #endif
59
60 case HASHKIT_HASH_MURMUR3:
61 case HASHKIT_HASH_MURMUR:
62 #ifdef HAVE_MURMUR_HASH
63 return true;
64 #else
65 return false;
66 #endif
67
68 case HASHKIT_HASH_FNV1_32:
69 case HASHKIT_HASH_FNV1A_32:
70 case HASHKIT_HASH_DEFAULT:
71 case HASHKIT_HASH_MD5:
72 case HASHKIT_HASH_CRC:
73 case HASHKIT_HASH_JENKINS:
74 case HASHKIT_HASH_CUSTOM:
75 return true;
76
77 case HASHKIT_HASH_MAX:
78 break;
79 }
80
81 return false;
82 }