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87 lines
2.6 KiB
87 lines
2.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LIBLOCKDEP_RWLOCK_H |
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#define _LIBLOCKDEP_RWLOCK_H |
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#include <pthread.h> |
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#include "common.h" |
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struct liblockdep_pthread_rwlock { |
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pthread_rwlock_t rwlock; |
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struct lockdep_map dep_map; |
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}; |
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typedef struct liblockdep_pthread_rwlock liblockdep_pthread_rwlock_t; |
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#define LIBLOCKDEP_PTHREAD_RWLOCK_INITIALIZER(rwl) \ |
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(struct liblockdep_pthread_rwlock) { \ |
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.rwlock = PTHREAD_RWLOCK_INITIALIZER, \ |
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.dep_map = STATIC_LOCKDEP_MAP_INIT(#rwl, &((&(rwl))->dep_map)), \ |
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} |
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static inline int __rwlock_init(liblockdep_pthread_rwlock_t *lock, |
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const char *name, |
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struct lock_class_key *key, |
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const pthread_rwlockattr_t *attr) |
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{ |
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lockdep_init_map(&lock->dep_map, name, key, 0); |
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return pthread_rwlock_init(&lock->rwlock, attr); |
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} |
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#define liblockdep_pthread_rwlock_init(lock, attr) \ |
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({ \ |
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static struct lock_class_key __key; \ |
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\ |
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__rwlock_init((lock), #lock, &__key, (attr)); \ |
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}) |
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static inline int liblockdep_pthread_rwlock_rdlock(liblockdep_pthread_rwlock_t *lock) |
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{ |
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lock_acquire(&lock->dep_map, 0, 0, 2, 1, NULL, (unsigned long)_RET_IP_); |
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return pthread_rwlock_rdlock(&lock->rwlock); |
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} |
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static inline int liblockdep_pthread_rwlock_unlock(liblockdep_pthread_rwlock_t *lock) |
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{ |
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lock_release(&lock->dep_map, (unsigned long)_RET_IP_); |
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return pthread_rwlock_unlock(&lock->rwlock); |
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} |
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static inline int liblockdep_pthread_rwlock_wrlock(liblockdep_pthread_rwlock_t *lock) |
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{ |
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lock_acquire(&lock->dep_map, 0, 0, 0, 1, NULL, (unsigned long)_RET_IP_); |
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return pthread_rwlock_wrlock(&lock->rwlock); |
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} |
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static inline int liblockdep_pthread_rwlock_tryrdlock(liblockdep_pthread_rwlock_t *lock) |
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{ |
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lock_acquire(&lock->dep_map, 0, 1, 2, 1, NULL, (unsigned long)_RET_IP_); |
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return pthread_rwlock_tryrdlock(&lock->rwlock) == 0 ? 1 : 0; |
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} |
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static inline int liblockdep_pthread_rwlock_trywrlock(liblockdep_pthread_rwlock_t *lock) |
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{ |
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lock_acquire(&lock->dep_map, 0, 1, 0, 1, NULL, (unsigned long)_RET_IP_); |
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return pthread_rwlock_trywrlock(&lock->rwlock) == 0 ? 1 : 0; |
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} |
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static inline int liblockdep_rwlock_destroy(liblockdep_pthread_rwlock_t *lock) |
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{ |
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return pthread_rwlock_destroy(&lock->rwlock); |
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} |
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#ifdef __USE_LIBLOCKDEP |
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#define pthread_rwlock_t liblockdep_pthread_rwlock_t |
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#define pthread_rwlock_init liblockdep_pthread_rwlock_init |
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#define pthread_rwlock_rdlock liblockdep_pthread_rwlock_rdlock |
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#define pthread_rwlock_unlock liblockdep_pthread_rwlock_unlock |
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#define pthread_rwlock_wrlock liblockdep_pthread_rwlock_wrlock |
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#define pthread_rwlock_tryrdlock liblockdep_pthread_rwlock_tryrdlock |
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#define pthread_rwlock_trywrlock liblockdep_pthread_rwlock_trywrlock |
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#define pthread_rwlock_destroy liblockdep_rwlock_destroy |
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#endif |
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#endif
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