git.m6w6.name Git - awesomized/libmemcached/blob - libmemcached/memcached_touch.rst

   1 Update expiration on a key
   2 ==========================
   3
   4 SYNOPSIS
   5 --------
   6
   7 #include <libmemcached/memcached.h>
   8     Compile and link with -lmemcached
   9
  10 .. function:: memcached_return_t memcached_touch (memcached_st *ptr, const char *key, size_t key_length, time_t expiration)
  11
  12     :param ptr: pointer to initialized `memcached_st` struct
  13     :param key: the key to touch
  14     :param key_length: the length of `key` without any terminating zero
  15     :param expiration: new expiration as a unix timestamp or as relative expiration time in seconds
  16     :returns: `memcached_return_t` indicating success
  17
  18 .. 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)
  19
  20     :param ptr: pointer to initialized `memcached_st` struct
  21     :param group_key: the `key` namespace
  22     :param group_key_length: the length of `group_key` without any terminating zero
  23     :param key: the key to touch
  24     :param key_length: the length of `key` without any terminating zero
  25     :param expiration: new expiration as a unix timestamp or as relative expiration time in seconds
  26     :returns: `memcached_return_t` indicating success
  27
  28 DESCRIPTION
  29 -----------
  30
  31 :func:`memcached_touch` is used to update the expiration time on an existing key.
  32 :func:`memcached_touch_by_key` works the same, but it takes a master key
  33 to find the given value.
  34
  35 RETURN VALUE
  36 ------------
  37
  38 A value of type :type:`memcached_return_t` is returned.
  39 On success that value will be `MEMCACHED_SUCCESS`.
  40 Use :func:`memcached_strerror` to translate this value to a printable
  41 string.
  42
  43 SEE ALSO
  44 --------
  45
  46 .. only:: man
  47
  48     :manpage:`memcached(1)`
  49     :manpage:`libmemcached(3)`
  50     :manpage:`memcached_strerror(3)`
  51
  52 .. only:: html
  53
  54     * :manpage:`memcached(1)`
  55     * :doc:`../libmemcached`
  56     * :doc:`memcached_strerror`