MEMCACHED_FETCH(3) libmemcached MEMCACHED_FETCH(3)NAMEmemcached_fetch - Retrieving data from the server
SYNOPSIS
#include <libmemcached/memcached.h>
char *memcached_fetch(memcached_st *ptr, char *key, size_t *key_length,
size_t *value_length, uint32_t *flags, memcached_return_t *error)
Deprecated since version 0.50: Use memcached_fetch_result()
instead.
Compile and link with -lmemcached
DESCRIPTIONmemcached_fetch() is used to fetch an individual value from the server.
memcached_mget() must always be called before using this method. You
must pass in a key and its length to fetch the object. You must supply
three pointer variables which will give you the state of the returned
object. A uint32_t pointer to contain whatever flags you stored with
the value, a size_t pointer which will be filled with size of of the
object, and a memcached_return_t pointer to hold any error. The object
will be returned upon success and NULL will be returned on failure.
MEMCACHED_END is returned by the *error value when all objects that
have been found are returned. The final value upon MEMCACHED_END is
null.
Values returned by memcached_fetch() must be freed by the caller.
All of the above functions are not tested when the MEMCACHED_BEHAV‐
IOR_USE_UDP has been set. Executing any of these functions with this
behavior on will result in MEMCACHED_NOT_SUPPORTED being returned, or
for those functions which do not return a memcached_return_t, the error
function parameter will be set to MEMCACHED_NOT_SUPPORTED.
RETURNmemcached_fetch() sets error to to MEMCACHED_END upon successful con‐
clusion. MEMCACHED_NOTFOUND will be return if no keys at all were
found.
MEMCACHED_KEY_TOO_BIG is set to error whenever memcached_fetch() was
used and the key was set larger then MEMCACHED_MAX_KEY, which was the
largest key allowed for the original memcached ascii server.
HOME
To find out more information please check: http://libmemcached.org/
SEE ALSOmemcached(1)libmemcached(3)memcached_strerror(3) mem‐
cached_fetch_result(3)AUTHOR
Brian Aker
COPYRIGHT
2011-2013, Brian Aker DataDifferential, http://datadifferential.com/
1.0.18 February 09, 2014 MEMCACHED_FETCH(3)
