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

NAME
       qb_map_notify_add - Add a notifier to the map.


SYNOPSIS
       #include <qb/qbmap.h>

       int32_t qb_map_notify_add(
           qb_map_t         *m,
           const char       *key,
           qb_map_notify_fn  fn,
           int32_t           events,
           void             *user_data
       );

PARAMS
       m         the map instance

       key       the key (or prefix) to attach the notification to.

       fn        the callback

       events    the type of events to register for.

       user_data a pointer to be passed into the callback

DESCRIPTION
RETURN VALUE
       0          success

       -errno     failure

NOTE
       you can use key prefixes with trie maps.

SEE ALSO
       qb_trie_dump(3), qb_map_iter_create(3), qb_skiplist_create(3),
       qb_map_notify_del(3), qb_map_put(3), qb_map_count_get(3),
       qb_map_foreach(3), qb_map_pref_iter_create(3), qb_map_iter_next(3),
       qb_map_get(3), qb_map_destroy(3), qb_hashtable_create(3),
       qb_map_iter_free(3), qb_trie_create(3), qb_map_notify_del_2(3),
       qb_map_rm(3)

COPYRIGHT
       Copyright (C) 2010-2020 Red Hat, Inc.

LIBQB                             2021-03-03              QB_MAP_NOTIFY_ADD(3)