#include <libmemcached/memcached.h>
Compile and link with -lmemcached
memcached_touch() is used to update the expiration time on an existing key. memcached_touch_by_key() works the same, but it takes a master key to find the given value.
A value of type memcached_return_t is returned On success that value will be MEMCACHED_SUCCESS. Use memcached_strerror() to translate this value to a printable string.
To find out more information please check: http://libmemcached.org/
Brian Aker, <brian@tangent.org>
memcached(1) libmemcached(3) memcached_strerror(3)