memcached_touch - libmemcached Documentation

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.

memcached_touch - libmemcached Documentation

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.

memcached(1)libmemcached(3)memcached_strerror(3) 1.1 Mar 31, 2024 MEMCACHED_TOUCH(3)

#include<libmemcached/memcached.h> Compile and link with -lmemcached memcached_return_tmemcached_touch(memcached_st*ptr,constchar*key,size_tkey_length,time_texpiration)Parameters • ptr -- pointer to initialized memcached_st struct • key -- the key to touch • key_length -- the length of key without any terminating zero • expiration -- new expiration as a unix timestamp or as relative expiration time in seconds Returnsmemcached_return_t indicating success memcached_return_tmemcached_touch_by_key(memcached_st*ptr,constchar*group_key,size_tgroup_key_length,constchar*key,size_tkey_length,time_texpiration)Parameters • ptr -- pointer to initialized memcached_st struct • group_key -- the key namespace • group_key_length -- the length of group_key without any terminating zero • key -- the key to touch • key_length -- the length of key without any terminating zero • expiration -- new expiration as a unix timestamp or as relative expiration time in seconds Returnsmemcached_return_t indicating success