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- // SPDX-License-Identifier: GPL-2.0
- #include "util.h"
- #include "rwsem.h"
- int init_rwsem(struct rw_semaphore *sem)
- {
- return pthread_rwlock_init(&sem->lock, NULL);
- }
- int exit_rwsem(struct rw_semaphore *sem)
- {
- return pthread_rwlock_destroy(&sem->lock);
- }
- int down_read(struct rw_semaphore *sem)
- {
- return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock);
- }
- int up_read(struct rw_semaphore *sem)
- {
- return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
- }
- int down_write(struct rw_semaphore *sem)
- {
- return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock);
- }
- int up_write(struct rw_semaphore *sem)
- {
- return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
- }
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