NAME
memcached_touch - libmemcached Documentation
SYNOPSIS
- #include <libmemcached/memcached.h>
-
Compile and link with -lmemcached
- memcached_return_t <#_CPPv418memcached_return_t> memcached_touch(memcached_st <#_CPPv412memcached_st> *ptr, const char *key, size_t key_length, time_t expiration)
-
- Parameters
-
- •
-
ptr -- pointer to initialized memcached_st <#_CPPv412memcached_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 <#_CPPv418memcached_return_t> indicating success
- memcached_return_t <#_CPPv418memcached_return_t> memcached_touch_by_key(memcached_st <#_CPPv412memcached_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 <#_CPPv412memcached_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 <#_CPPv418memcached_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 <#_CPPv418memcached_return_t> is returned. On success that value will be MEMCACHED_SUCCESS <#_CPPv4N18memcached_return_t17MEMCACHED_SUCCESSE>. Use memcached_strerror() <#_CPPv418memcached_strerrorP12memcached_st18memcached_return_t> to translate this value to a printable string.
SEE ALSO
memcached(1) <https://linux.die.net/man/1/memcached> libmemcached(3) <https://linux.die.net/man/3/libmemcached> memcached_strerror(3) <https://linux.die.net/man/3/memcached_strerror>