1// SPDX-License-Identifier: GPL-2.0
 2#include "util.h"
 3#include "rwsem.h"
 4
 
 
 
 
 5int init_rwsem(struct rw_semaphore *sem)
 6{
 
 
 
 
 7	return pthread_rwlock_init(&sem->lock, NULL);
 
 8}
 9
10int exit_rwsem(struct rw_semaphore *sem)
11{
 
 
 
 
12	return pthread_rwlock_destroy(&sem->lock);
 
13}
14
15int down_read(struct rw_semaphore *sem)
16{
 
 
 
 
17	return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock);
 
18}
19
20int up_read(struct rw_semaphore *sem)
21{
 
 
 
 
22	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
 
23}
24
25int down_write(struct rw_semaphore *sem)
26{
 
 
 
 
27	return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock);
 
28}
29
30int up_write(struct rw_semaphore *sem)
31{
 
 
 
 
32	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
 
33}

 1// SPDX-License-Identifier: GPL-2.0
 2#include "util.h"
 3#include "rwsem.h"
 4
 5#if RWS_ERRORCHECK
 6#include "mutex.h"
 7#endif
 8
 9int init_rwsem(struct rw_semaphore *sem)
10{
11#if RWS_ERRORCHECK
12	mutex_init(&sem->mtx);
13	return 0;
14#else
15	return pthread_rwlock_init(&sem->lock, NULL);
16#endif
17}
18
19int exit_rwsem(struct rw_semaphore *sem)
20{
21#if RWS_ERRORCHECK
22	mutex_destroy(&sem->mtx);
23	return 0;
24#else
25	return pthread_rwlock_destroy(&sem->lock);
26#endif
27}
28
29int down_read(struct rw_semaphore *sem)
30{
31#if RWS_ERRORCHECK
32	mutex_lock(&sem->mtx);
33	return 0;
34#else
35	return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock);
36#endif
37}
38
39int up_read(struct rw_semaphore *sem)
40{
41#if RWS_ERRORCHECK
42	mutex_unlock(&sem->mtx);
43	return 0;
44#else
45	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
46#endif
47}
48
49int down_write(struct rw_semaphore *sem)
50{
51#if RWS_ERRORCHECK
52	mutex_lock(&sem->mtx);
53	return 0;
54#else
55	return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock);
56#endif
57}
58
59int up_write(struct rw_semaphore *sem)
60{
61#if RWS_ERRORCHECK
62	mutex_unlock(&sem->mtx);
63	return 0;
64#else
65	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
66#endif
67}