locking.h


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
93
94
95
96
97

/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2011 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#ifndef LOCKING_H
#define LOCKING_H

#include <pthread.h>

#include "built_in.h"

struct spinlock {
	pthread_spinlock_t lock;
};

struct mutexlock {
	pthread_mutex_t lock;
};

struct rwlock {
	pthread_rwlock_t lock;
};

static inline int spinlock_init(struct spinlock *l)
{
	return -pthread_spin_init(&l->lock, 0);
}

static inline void spinlock_destroy(struct spinlock *l)
{
	pthread_spin_destroy(&l->lock);
}

static inline void spinlock_lock(struct spinlock *l)
{
	pthread_spin_lock(&l->lock);
}

static inline void spinlock_unlock(struct spinlock *l)
{
	pthread_spin_unlock(&l->lock);
}

static inline int mutexlock_init(struct mutexlock *l)
{
	return -pthread_mutex_init(&l->lock, 0);
}

static inline void mutexlock_destroy(struct mutexlock *l)
{
	pthread_mutex_destroy(&l->lock);
}

static inline void mutexlock_lock(struct mutexlock *l)
{
	pthread_mutex_lock(&l->lock);
}

static inline void mutexlock_unlock(struct mutexlock *l)
{
	pthread_mutex_unlock(&l->lock);
}

static inline int rwlock_init(struct rwlock *l)
{
	return -pthread_rwlock_init(&l->lock, 0);
}

static inline int rwlock_init2(struct rwlock *l,
			       pthread_rwlockattr_t *attr)
{
	return -pthread_rwlock_init(&l->lock, attr);
}

static inline void rwlock_destroy(struct rwlock *l)
{
	pthread_rwlock_destroy(&l->lock);
}

static inline void rwlock_rd_lock(struct rwlock *l)
{
	pthread_rwlock_rdlock(&l->lock);
}

static inline void rwlock_wr_lock(struct rwlock *l)
{
	pthread_rwlock_wrlock(&l->lock);
}

static inline void rwlock_unlock(struct rwlock *l)
{
	pthread_rwlock_unlock(&l->lock);
}

#endif /* LOCKING_H */