xref: /third_party/mesa3d/src/util/u_hash_table.h (revision bf215546) 
1/**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28/**
29 * General purpose hash table.
30 */
31
32#ifndef U_HASH_TABLE_H_
33#define U_HASH_TABLE_H_
34
35
36#include "pipe/p_defines.h"
37#include "util/hash_table.h"
38
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/**
45 * Create a hash table where the keys are generic pointers.
46 */
47struct hash_table *
48util_hash_table_create_ptr_keys(void);
49
50
51/**
52 * Create a hash table where the keys are device FDs.
53 */
54struct hash_table *
55util_hash_table_create_fd_keys(void);
56
57
58void *
59util_hash_table_get(struct hash_table *ht,
60                    void *key);
61
62
63enum pipe_error
64util_hash_table_foreach(struct hash_table *ht,
65                        enum pipe_error (*callback)
66                        (void *key, void *value, void *data),
67                        void *data);
68
69#ifdef __cplusplus
70}
71#endif
72
73#endif /* U_HASH_TABLE_H_ */
74