1QB_MAP_NOTIFY_ADD(3)       libqb Programmer's Manual      QB_MAP_NOTIFY_ADD(3)
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NAME

6       qb_map_notify_add - Add a notifier to the map.
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SYNOPSIS

10       #include <qb/qbmap.h>
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12       int32_t qb_map_notify_add(
13           qb_map_t         *m,          /* the map instance */
14           /*
15            * the key (or prefix) to attach the notification to.
16            */
17           const char       *key,
18           qb_map_notify_fn  fn,         /* the callback */
19           int32_t           events,     /* the type of events to register for. */
20           void             *user_data   /* a pointer to be passed into the callback*/
21       );
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PARAMS

24       m         the map instance
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26       key       the key (or prefix) to attach the notification to.
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28       fn        the callback
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30       events    the type of events to register for.
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32       user_data a pointer to be passed into the callback
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DESCRIPTION

RETURN VALUE
36       0          success
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38       -errno     failure
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NOTE
41       you can use key prefixes with trie maps.
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SEE ALSO
44       qb_trie_dump(3), qb_map_iter_create(3), qb_skiplist_create(3),
45       qb_map_notify_del(3), qb_map_put(3), qb_map_count_get(3),
46       qb_map_foreach(3), qb_map_pref_iter_create(3), qb_map_iter_next(3),
47       qb_map_get(3), qb_map_destroy(3), qb_hashtable_create(3),
48       qb_map_iter_free(3), qb_trie_create(3), qb_map_notify_del_2(3),
49       qb_map_rm(3)
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52       Copyright (C) 2010-2020 Red Hat, Inc.
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56LIBQB                             2023-07-21              QB_MAP_NOTIFY_ADD(3)



        

    


            
        

        

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