1MEMCACHED_DELETE(3) libmemcached-awesome MEMCACHED_DELETE(3)
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6 memcached_delete - libmemcached Documentation
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9 #include <libmemcached/memcached.h>
10 Compile and link with -lmemcached
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12 memcached_return_t memcached_delete(memcached_st *ptr, const char *key,
13 size_t key_length, time_t expiration)
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15 memcached_return_t memcached_delete_by_key(memcached_st *ptr, const
16 char *group_key, size_t group_key_length, const char *key, size_t
17 key_length, time_t expiration)
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19 Parameters
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21 • ptr -- pointer to initialized memcached_st struct
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23 • group_key -- key namespace
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25 • group_key_length -- length of the group_key without any
26 terminating zero
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28 • key -- the key to delete
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30 • key_length -- the length og the key without any termi‐
31 nating zero
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33 • expiration -- obsolete since memcached(1) version 1.4
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35 Returns
36 memcached_return_t indicating success
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39 memcached_delete() is used to delete a particular key.
40 memcached_delete_by_key() works the same, but it takes a master key to
41 find the given value.
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43 Expiration works by placing the item into a delete queue, which means
44 that it won't be possible to retrieve it by the "get" command. The
45 "add" and "replace" commands with this key will also fail (the "set"
46 command will succeed, however). After the time passes, the item is fi‐
47 nally deleted from server memory.
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49 Please note the the memcached server removed tests for expiration in
50 the 1.4 version.
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53 A value of type memcached_return_t is returned On success that value
54 will be MEMCACHED_SUCCESS. Use memcached_strerror() to translate this
55 value to a printable string.
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57 If you are using the non-blocking mode of the library, success only
58 means that the message was queued for delivery.
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61 memcached(1) libmemcached(3) memcached_strerror(3)
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661.1 Sep 20, 2021 MEMCACHED_DELETE(3)