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===============================
Generating hash values directly
===============================
.. index:: object: memcached_st
Hash a key value
--------
SYNOPSIS
--------
#include <libmemcached/memcached.h>
.. c:type:: memcached_hash_t
.. c:function:: uint32_t memcached_generate_hash_value (const char *key, size_t key_length, memcached_hash_t hash_algorithm)
.. c:function:: uint32_t memcached_generate_hash (memcached_st *ptr, const char *key, size_t key_length)
.. c:type:: MEMCACHED_HASH_DEFAULT
.. c:type:: MEMCACHED_HASH_MD5
.. c:type:: MEMCACHED_HASH_CRC
.. c:type:: MEMCACHED_HASH_FNV1_64
.. c:type:: MEMCACHED_HASH_FNV1A_64
.. c:type:: MEMCACHED_HASH_FNV1_32
.. c:type:: MEMCACHED_HASH_FNV1A_32
.. c:type:: MEMCACHED_HASH_JENKINS
.. c:type:: MEMCACHED_HASH_MURMUR
.. c:type:: MEMCACHED_HASH_HSIEH
.. c:type:: MEMCACHED_HASH_MURMUR3
Compile and link with -lmemcachedutil -lmemcached
-----------
DESCRIPTION
-----------
:c:func:`memcached_generate_hash_value` allows you to hash a key using one of
the hash functions defined in the library. This method is provided for
the convenience of higher-level language bindings and is not necessary
for normal memcache operations.
The allowed hash algorithm constants are listed in the manpage for
:c:func:`memcached_behavior_set`.
:c:func:`memcached_generate_hash` takes a :c:type:`memcached_st` struture
and produces the hash value that would have been generated based on the
defaults of :c:type:`memcached_st`.
As of version 0.36 all hash methods have been placed into the library
libhashkit(3) which is linked with libmemcached(3). For more information please see its documentation.
------
RETURN
------
A 32-bit integer which is the result of hashing the given key.
For 64-bit hash algorithms, only the least-significant 32 bits are
returned.
----
HOME
----
To find out more information please check:
`http://libmemcached.org/ <http://libmemcached.org/>`_
------
AUTHOR
------
Brian Aker, <brian@tangent.org>
--------
SEE ALSO
--------
:manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)`
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