blob: 806cc05c68830205c51a100b1d4f319bd674fc4f (
plain)
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
83
84
85
86
87
88
89
90
91
92
|
/* Copyright (c) 2013, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP spinlock
*/
#ifndef ODP_SPINLOCK_H_
#define ODP_SPINLOCK_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <odp_std_types.h>
/** @addtogroup odp_synchronizers
* Operations on spin locks.
* @{
*/
/**
* ODP spinlock type
*/
typedef struct odp_spinlock_t {
char lock; /**< @private lock flag, should match odp_atomic_flag_t */
} odp_spinlock_t;
/**
* Initialize spin lock.
*
* @param splock Pointer to a spin lock
*/
void odp_spinlock_init(odp_spinlock_t *splock);
/**
* Acquire spin lock.
*
* @param splock Pointer to a spin lock
*/
void odp_spinlock_lock(odp_spinlock_t *splock);
/**
* Try to acquire spin lock.
*
* @param splock Pointer to a spin lock
*
* @retval 1 lock acquired
* @retval 0 lock not acquired
*/
int odp_spinlock_trylock(odp_spinlock_t *splock);
/**
* Release spin lock.
*
* @param splock Pointer to a spin lock
*/
void odp_spinlock_unlock(odp_spinlock_t *splock);
/**
* Check if spin lock is busy (locked).
*
* @param splock Pointer to a spin lock
*
* @retval 1 lock busy (locked)
* @retval 0 lock not busy.
*/
int odp_spinlock_is_locked(odp_spinlock_t *splock);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif
|
