MEMCACHED_TOUCH

NAME

memcached_touch - libmemcached Documentation

SYNOPSIS

#include <libmemcached/memcached.h>

Compile and link with -lmemcached

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

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

Returns

memcached_return_t indicating success

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)

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

Returns

memcached_return_t indicating success

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 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.

SEE ALSO

memcached(1) libmemcached(3) memcached_strerror(3)