blob: f3d29d8ddc991e14d1bc0c0cbf275ea31927a09c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// 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);
}
|
