1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
* Copyright © 2009,2013 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#ifndef SET_H
#define SET_H
#include <inttypes.h>
#include <stdbool.h>
struct int_set_entry {
uint32_t value;
unsigned int occupied : 1;
unsigned int deleted : 1;
};
struct int_set {
struct int_set_entry *table;
uint32_t size;
uint32_t rehash;
uint32_t max_entries;
uint32_t size_index;
uint32_t entries;
uint32_t deleted_entries;
};
struct int_set *
int_set_create(void);
void
int_set_destroy(struct int_set *set);
struct int_set_entry *
int_set_add(struct int_set *set, uint32_t value);
bool
int_set_contains(struct int_set *set, uint32_t value);
void
int_set_remove(struct int_set *set, uint32_t value);
struct int_set_entry *
int_set_search(struct int_set *set, uint32_t value);
void
int_set_remove_entry(struct int_set *set, struct int_set_entry *entry);
struct int_set_entry *
int_set_next_entry(struct int_set *set, struct int_set_entry *entry);
/* Return a random entry in the set that satisfies predicate.
*
* The 'predicate' function pointer may be NULL in which any random
* entry will be returned. */
struct int_set_entry *
int_set_random_entry(struct int_set *set,
int (*predicate)(struct int_set_entry *entry));
#endif
|
