X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=docs%2Fmemcached_generate_hash_value.rst;h=5b835df9e6a48c1d710351abf533e8e3e3951cfe;hb=0792d5bdd0b2a352cce1a4cb084eca19b15acc56;hp=0cefabb54ce65555378604da5b64e8f5683880f7;hpb=1edb76c1dfdf6307d010307b6f04bed3ce22e3a2;p=m6w6%2Flibmemcached diff --git a/docs/memcached_generate_hash_value.rst b/docs/memcached_generate_hash_value.rst index 0cefabb5..5b835df9 100644 --- a/docs/memcached_generate_hash_value.rst +++ b/docs/memcached_generate_hash_value.rst @@ -1,67 +1,73 @@ -.. highlight:: perl +=============================== +Generating hash values directly +=============================== +.. index:: object: memcached_st -memcached_generate_hash_value -***************************** +Hash a key value -Hash a key value +-------- +SYNOPSIS +-------- + +#include -******* -LIBRARY -******* +.. 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 Client Library for memcached (libmemcached, -lmemcached) +.. c:type:: MEMCACHED_HASH_DEFAULT +.. c:type:: MEMCACHED_HASH_MD5 -******** -SYNOPSIS -******** +.. c:type:: MEMCACHED_HASH_CRC +.. c:type:: MEMCACHED_HASH_FNV1_64 +.. c:type:: MEMCACHED_HASH_FNV1A_64 -.. code-block:: perl +.. c:type:: MEMCACHED_HASH_FNV1_32 - #include - - 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); +.. c:type:: MEMCACHED_HASH_FNV1A_32 +.. c:type:: MEMCACHED_HASH_JENKINS +.. c:type:: MEMCACHED_HASH_MURMUR -*********** +.. c:type:: MEMCACHED_HASH_HSIEH + + +Compile and link with -lmemcachedutil -lmemcached + + +----------- DESCRIPTION -*********** +----------- -memcached_generate_hash_value() allows you to hash a key using one of +: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 -memcached_behavior_set(). +:c:func:`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 the memcached_st structure. +: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). +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. @@ -69,27 +75,26 @@ For 64-bit hash algorithms, only the least-significant 32 bits are returned. -**** +---- HOME -**** +---- To find out more information please check: -`https://launchpad.net/libmemcached `_ +`http://libmemcached.org/ `_ -****** +------ AUTHOR -****** +------ Brian Aker, -******** +-------- SEE ALSO -******** - +-------- -memcached(1) libmemcached(3) memcached_behavior_set(3) libhashkit(3) +:manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)`