1 #ifndef _LIBLOCKDEP_MUTEX_H
2 #define _LIBLOCKDEP_MUTEX_H
3
4 #include <pthread.h>
5 #include "common.h"
6
7 struct liblockdep_pthread_mutex {
8 pthread_mutex_t mutex;
9 struct lockdep_map dep_map;
10 };
11
12 typedef struct liblockdep_pthread_mutex liblockdep_pthread_mutex_t;
13
14 #define LIBLOCKDEP_PTHREAD_MUTEX_INITIALIZER(mtx) \
15 (const struct liblockdep_pthread_mutex) { \
16 .mutex = PTHREAD_MUTEX_INITIALIZER, \
17 .dep_map = STATIC_LOCKDEP_MAP_INIT(#mtx, &((&(mtx))->dep_map)), \
18 }
19
__mutex_init(liblockdep_pthread_mutex_t * lock,const char * name,struct lock_class_key * key,const pthread_mutexattr_t * __mutexattr)20 static inline int __mutex_init(liblockdep_pthread_mutex_t *lock,
21 const char *name,
22 struct lock_class_key *key,
23 const pthread_mutexattr_t *__mutexattr)
24 {
25 lockdep_init_map(&lock->dep_map, name, key, 0);
26 return pthread_mutex_init(&lock->mutex, __mutexattr);
27 }
28
29 #define liblockdep_pthread_mutex_init(mutex, mutexattr) \
30 ({ \
31 static struct lock_class_key __key; \
32 \
33 __mutex_init((mutex), #mutex, &__key, (mutexattr)); \
34 })
35
liblockdep_pthread_mutex_lock(liblockdep_pthread_mutex_t * lock)36 static inline int liblockdep_pthread_mutex_lock(liblockdep_pthread_mutex_t *lock)
37 {
38 lock_acquire(&lock->dep_map, 0, 0, 0, 1, NULL, (unsigned long)_RET_IP_);
39 return pthread_mutex_lock(&lock->mutex);
40 }
41
liblockdep_pthread_mutex_unlock(liblockdep_pthread_mutex_t * lock)42 static inline int liblockdep_pthread_mutex_unlock(liblockdep_pthread_mutex_t *lock)
43 {
44 lock_release(&lock->dep_map, 0, (unsigned long)_RET_IP_);
45 return pthread_mutex_unlock(&lock->mutex);
46 }
47
liblockdep_pthread_mutex_trylock(liblockdep_pthread_mutex_t * lock)48 static inline int liblockdep_pthread_mutex_trylock(liblockdep_pthread_mutex_t *lock)
49 {
50 lock_acquire(&lock->dep_map, 0, 1, 0, 1, NULL, (unsigned long)_RET_IP_);
51 return pthread_mutex_trylock(&lock->mutex) == 0 ? 1 : 0;
52 }
53
liblockdep_pthread_mutex_destroy(liblockdep_pthread_mutex_t * lock)54 static inline int liblockdep_pthread_mutex_destroy(liblockdep_pthread_mutex_t *lock)
55 {
56 return pthread_mutex_destroy(&lock->mutex);
57 }
58
59 #ifdef __USE_LIBLOCKDEP
60
61 #define pthread_mutex_t liblockdep_pthread_mutex_t
62 #define pthread_mutex_init liblockdep_pthread_mutex_init
63 #define pthread_mutex_lock liblockdep_pthread_mutex_lock
64 #define pthread_mutex_unlock liblockdep_pthread_mutex_unlock
65 #define pthread_mutex_trylock liblockdep_pthread_mutex_trylock
66 #define pthread_mutex_destroy liblockdep_pthread_mutex_destroy
67
68 #endif
69
70 #endif
71