1MEMCACHED_EXIST(3) libmemcached-awesome MEMCACHED_EXIST(3)
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6 memcached_exist - 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_exist(memcached_st *ptr, char *key, size_t
13 *key_length)
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15 memcached_return_t memcached_exist_by_key(memcached_st *ptr, char
16 *group_key, size_t *group_key_length, char *key, size_t *key_length)
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18 Parameters
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20 • ptr -- pointer to an initialized memcached_st struct
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22 • group_key -- the key namespace
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24 • group_key_length -- length of the group_key without any
25 terminating zero
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27 • key -- the key to check
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29 • key_length -- length of the key without any terminating
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32 Returns
33 memcached_return_t indicating success
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35 New in version 0.53.
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39 memcached_exist() can be used to check if a key exists.
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42 MEMCACHED_SUCCESS
43 The key exists.
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45 MEMCACHED_NOTFOUND
46 The key was not found.
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49 memcached(1) libmemcached(3) memcached_strerror(3)
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541.1 Nov 09, 2022 MEMCACHED_EXIST(3)