Determine if a keys exists.¶
SYNOPSIS¶
#include <libmemcached/memcached.h>
-
memcached_return_t
memcached_exist
(memcached_st *ptr, char *key, size_t *key_length)¶
-
memcached_return_t
memcached_exist_by_key
(memcached_st *ptr, char *group_key, size_t *group_key_length, char *key, size_t *key_length)¶ New in version 0.53.
Compile and link with -lmemcached
DESCRIPTION¶
memcached_exist()
can be used to check to see if a key exists. No value is returned if the key exists, or does not exist, on the server.
RETURN¶
memcached_exist()
sets error to
to MEMCACHED_SUCCESS
upon finding that the key exists.
MEMCACHED_NOTFOUND
will be return if the key is not found.
HOME¶
To find out more information please check: http://libmemcached.org/
SEE ALSO¶
memcached(1) libmemcached(3) memcached_strerror(3)