code.delx.au - pulseaudio/blob - polyp/hashmap.h

   1 #ifndef foohashmaphfoo
   2 #define foohashmaphfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of polypaudio.
   8
   9   polypaudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   polypaudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with polypaudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 struct pa_hashmap;
  26
  27 struct pa_hashmap *pa_hashmap_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b));
  28 void pa_hashmap_free(struct pa_hashmap*, void (*free_func)(void *p, void *userdata), void *userdata);
  29
  30 int pa_hashmap_put(struct pa_hashmap *h, const void *key, void *value);
  31 void* pa_hashmap_get(struct pa_hashmap *h, const void *key);
  32
  33 void* pa_hashmap_remove(struct pa_hashmap *h, const void *key);
  34
  35 unsigned pa_hashmap_ncontents(struct pa_hashmap *h);
  36
  37 /* May be used to iterate through the hashmap. Initially the opaque
  38    pointer *state has to be set to NULL. The hashmap may not be
  39    modified during iteration. The key of the entry is returned in
  40    *key, if key is non-NULL. After the last entry in the hashmap NULL
  41    is returned. */
  42 void *pa_hashmap_iterate(struct pa_hashmap *h, void **state, const void**key);
  43
  44 #endif