Generating hash values directly hash a key value
#include <libmemcached/memcached.h>
memcached_hash_t
uint32_t memcached_generate_hash_value(const char *key, size_t key_length, memcached_hash_t hash_algorithm)
uint32_t memcached_generate_hash(memcached_st *ptr, const char *key, size_t key_length)
MEMCACHED_HASH_DEFAULT
MEMCACHED_HASH_MD5
MEMCACHED_HASH_CRC
MEMCACHED_HASH_FNV1_64
MEMCACHED_HASH_FNV1A_64
MEMCACHED_HASH_FNV1_32
MEMCACHED_HASH_FNV1A_32
MEMCACHED_HASH_JENKINS
MEMCACHED_HASH_MURMUR
MEMCACHED_HASH_HSIEH
MEMCACHED_HASH_MURMUR3
Compile and link with -lmemcachedutil -lmemcached
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 memcached_behavior_set().
memcached_generate_hash() takes a memcached_st struture and produces the hash value that would have been generated based on the defaults of 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.
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.
To find out more information please check: http://libmemcached.org/
Brian Aker, <[email protected]>
memcached(1) libmemcached(3) memcached_strerror(3)
Brian Aker
2011-2013, Brian Aker DataDifferential, http://datadifferential.com/