memcached_touch_by_key man page

memcached_touch_by_key — libmemcached Documentation

Synopsis

#include <libmemcached/memcached.h>

memcached_return_t memcached_touch(memcached_st *ptr, const char *key, size_t key_length, time_t expiration)
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)

Compile and link with -lmemcached

Description

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.

Return

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.