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1f0961368f
* add typedefs for public structs and enums and drop the struct/enum prefixs from all uses where it makes sense git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@447 fefdeb5f-60dc-0310-8127-8f9354f1896f
53 lines
2.1 KiB
C
53 lines
2.1 KiB
C
#ifndef foohashmaphfoo
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#define foohashmaphfoo
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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/* Simple Implementation of a hash table. Memory management is the
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* user's job. It's a good idea to have the key pointer point to a
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* string in the value data. */
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typedef struct pa_hashmap pa_hashmap;
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/* Create a new hashmap. Use the specified functions for hashing and comparing objects in the map */
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pa_hashmap *pa_hashmap_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b));
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/* Free the hash table. Calls the specified function for every value in the table. The function may be NULL */
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void pa_hashmap_free(pa_hashmap*, void (*free_func)(void *p, void *userdata), void *userdata);
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/* Returns non-zero when the entry already exists */
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int pa_hashmap_put(pa_hashmap *h, const void *key, void *value);
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void* pa_hashmap_get(pa_hashmap *h, const void *key);
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/* Returns the data of the entry while removing */
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void* pa_hashmap_remove(pa_hashmap *h, const void *key);
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unsigned pa_hashmap_size(pa_hashmap *h);
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/* May be used to iterate through the hashmap. Initially the opaque
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pointer *state has to be set to NULL. The hashmap may not be
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modified during iteration. The key of the entry is returned in
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*key, if key is non-NULL. After the last entry in the hashmap NULL
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is returned. */
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void *pa_hashmap_iterate(pa_hashmap *h, void **state, const void**key);
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#endif
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