Sasha Levin | 5a52c9b | 2013-06-13 18:41:20 -0400 | [diff] [blame] | 1 | #ifndef _LIBLOCKDEP_RWLOCK_H |
| 2 | #define _LIBLOCKDEP_RWLOCK_H |
| 3 | |
| 4 | #include <pthread.h> |
| 5 | #include "common.h" |
| 6 | |
| 7 | struct liblockdep_pthread_rwlock { |
| 8 | pthread_rwlock_t rwlock; |
| 9 | struct lockdep_map dep_map; |
| 10 | }; |
| 11 | |
| 12 | typedef struct liblockdep_pthread_rwlock liblockdep_pthread_rwlock_t; |
| 13 | |
| 14 | #define LIBLOCKDEP_PTHREAD_RWLOCK_INITIALIZER(rwl) \ |
| 15 | (struct liblockdep_pthread_rwlock) { \ |
| 16 | .rwlock = PTHREAD_RWLOCK_INITIALIZER, \ |
| 17 | .dep_map = STATIC_LOCKDEP_MAP_INIT(#rwl, &((&(rwl))->dep_map)), \ |
| 18 | } |
| 19 | |
| 20 | static inline int __rwlock_init(liblockdep_pthread_rwlock_t *lock, |
| 21 | const char *name, |
| 22 | struct lock_class_key *key, |
| 23 | const pthread_rwlockattr_t *attr) |
| 24 | { |
| 25 | lockdep_init_map(&lock->dep_map, name, key, 0); |
| 26 | |
| 27 | return pthread_rwlock_init(&lock->rwlock, attr); |
| 28 | } |
| 29 | |
| 30 | #define liblockdep_pthread_rwlock_init(lock, attr) \ |
| 31 | ({ \ |
| 32 | static struct lock_class_key __key; \ |
| 33 | \ |
| 34 | __rwlock_init((lock), #lock, &__key, (attr)); \ |
| 35 | }) |
| 36 | |
| 37 | static inline int liblockdep_pthread_rwlock_rdlock(liblockdep_pthread_rwlock_t *lock) |
| 38 | { |
S. Lockwood-Childs | b108278 | 2014-07-07 00:17:33 -0700 | [diff] [blame] | 39 | lock_acquire(&lock->dep_map, 0, 0, 2, 1, NULL, (unsigned long)_RET_IP_); |
Sasha Levin | 5a52c9b | 2013-06-13 18:41:20 -0400 | [diff] [blame] | 40 | return pthread_rwlock_rdlock(&lock->rwlock); |
| 41 | |
| 42 | } |
| 43 | |
| 44 | static inline int liblockdep_pthread_rwlock_unlock(liblockdep_pthread_rwlock_t *lock) |
| 45 | { |
| 46 | lock_release(&lock->dep_map, 0, (unsigned long)_RET_IP_); |
| 47 | return pthread_rwlock_unlock(&lock->rwlock); |
| 48 | } |
| 49 | |
| 50 | static inline int liblockdep_pthread_rwlock_wrlock(liblockdep_pthread_rwlock_t *lock) |
| 51 | { |
S. Lockwood-Childs | b108278 | 2014-07-07 00:17:33 -0700 | [diff] [blame] | 52 | lock_acquire(&lock->dep_map, 0, 0, 0, 1, NULL, (unsigned long)_RET_IP_); |
Sasha Levin | 5a52c9b | 2013-06-13 18:41:20 -0400 | [diff] [blame] | 53 | return pthread_rwlock_wrlock(&lock->rwlock); |
| 54 | } |
| 55 | |
| 56 | static inline int liblockdep_pthread_rwlock_tryrdlock(liblockdep_pthread_rwlock_t *lock) |
| 57 | { |
S. Lockwood-Childs | b108278 | 2014-07-07 00:17:33 -0700 | [diff] [blame] | 58 | lock_acquire(&lock->dep_map, 0, 1, 2, 1, NULL, (unsigned long)_RET_IP_); |
Sasha Levin | 5a52c9b | 2013-06-13 18:41:20 -0400 | [diff] [blame] | 59 | return pthread_rwlock_tryrdlock(&lock->rwlock) == 0 ? 1 : 0; |
| 60 | } |
| 61 | |
| 62 | static inline int liblockdep_pthread_rwlock_trywlock(liblockdep_pthread_rwlock_t *lock) |
| 63 | { |
S. Lockwood-Childs | b108278 | 2014-07-07 00:17:33 -0700 | [diff] [blame] | 64 | lock_acquire(&lock->dep_map, 0, 1, 0, 1, NULL, (unsigned long)_RET_IP_); |
Sasha Levin | 5a52c9b | 2013-06-13 18:41:20 -0400 | [diff] [blame] | 65 | return pthread_rwlock_trywlock(&lock->rwlock) == 0 ? 1 : 0; |
| 66 | } |
| 67 | |
| 68 | static inline int liblockdep_rwlock_destroy(liblockdep_pthread_rwlock_t *lock) |
| 69 | { |
| 70 | return pthread_rwlock_destroy(&lock->rwlock); |
| 71 | } |
| 72 | |
| 73 | #ifdef __USE_LIBLOCKDEP |
| 74 | |
| 75 | #define pthread_rwlock_t liblockdep_pthread_rwlock_t |
| 76 | #define pthread_rwlock_init liblockdep_pthread_rwlock_init |
| 77 | #define pthread_rwlock_rdlock liblockdep_pthread_rwlock_rdlock |
| 78 | #define pthread_rwlock_unlock liblockdep_pthread_rwlock_unlock |
| 79 | #define pthread_rwlock_wrlock liblockdep_pthread_rwlock_wrlock |
| 80 | #define pthread_rwlock_tryrdlock liblockdep_pthread_rwlock_tryrdlock |
| 81 | #define pthread_rwlock_trywlock liblockdep_pthread_rwlock_trywlock |
| 82 | #define pthread_rwlock_destroy liblockdep_rwlock_destroy |
| 83 | |
| 84 | #endif |
| 85 | |
| 86 | #endif |