1 Update expiration on a key
2 ==========================
4 .. index:: object: memcached_st
9 #include <libmemcached/memcached.h>
11 .. function:: memcached_return_t memcached_touch (memcached_st *ptr, const char *key, size_t key_length, time_t expiration)
13 .. function:: memcached_return_t memcached_touch_by_key (memcached_st *ptr, const char *group_key, size_t group_key_length, const char *key, size_t key_length, time_t expiration)
15 Compile and link with -lmemcached
20 :func:`memcached_touch` is used to update the expiration time on an existing key.
21 :func:`memcached_touch_by_key` works the same, but it takes a master key
22 to find the given value.
27 A value of type :type:`memcached_return_t` is returned
28 On success that value will be `MEMCACHED_SUCCESS`.
29 Use :func:`memcached_strerror` to translate this value to a printable
37 :manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)`