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1 /**************************************************************************
2  *
3  * Copyright 2017 Valve Corporation
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 THE AUTHORS 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 #ifndef U_IDALLOC_H
29 #define U_IDALLOC_H
30 
31 #include <inttypes.h>
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 struct util_idalloc
38 {
39    uint32_t *data;
40    unsigned num_elements;
41 };
42 
43 void
44 util_idalloc_init(struct util_idalloc *buf);
45 
46 void
47 util_idalloc_fini(struct util_idalloc *buf);
48 
49 void
50 util_idalloc_resize(struct util_idalloc *buf, unsigned new_num_elements);
51 
52 unsigned
53 util_idalloc_alloc(struct util_idalloc *buf);
54 
55 void
56 util_idalloc_free(struct util_idalloc *buf, unsigned id);
57 
58 #ifdef __cplusplus
59 }
60 #endif
61 
62 #endif /* U_IDALLOC_H */
63