Merge in all scanner tree + virtual buckets.
[awesomized/libmemcached] / libmemcached / hash.h
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * Libmemcached library
4 *
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
6 * Copyright (C) 2006-2009 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
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34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 *
36 */
37
38 #ifndef __MEMCACHED_HASH_H__
39 #define __MEMCACHED_HASH_H__
40
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44
45 /* The two public hash bits */
46 LIBMEMCACHED_API
47 uint32_t memcached_generate_hash_value(const char *key, size_t key_length, memcached_hash_t hash_algorithm);
48
49 LIBMEMCACHED_API
50 const hashkit_st *memcached_get_hashkit(const memcached_st *ptr);
51
52 LIBMEMCACHED_API
53 memcached_return_t memcached_set_hashkit(memcached_st *ptr, hashkit_st *hashk);
54
55 LIBMEMCACHED_API
56 uint32_t memcached_generate_hash(const memcached_st *ptr, const char *key, size_t key_length);
57
58 LIBMEMCACHED_LOCAL
59 uint32_t memcached_generate_hash_with_redistribution(memcached_st *ptr, const char *key, size_t key_length);
60
61 LIBMEMCACHED_API
62 void memcached_autoeject(memcached_st *ptr);
63
64 LIBMEMCACHED_API
65 const char * libmemcached_string_hash(memcached_hash_t type);
66
67 #ifdef __cplusplus
68 }
69 #endif
70
71 #endif /* __MEMCACHED_HASH_H__ */