ostest/pthread_rwlock: We need to wait for race_cond_thread2

hujun260 · xiaoxiang781216 · commit e2a21337ac5b · 2024-11-10T00:54:35.000+08:00
to acquire the rdlock first, otherwise it may cause a deadlock.

Signed-off-by: hujun5 &lt;hujun5@xiaomi.com&gt;
diff --git a/testing/ostest/pthread_rwlock.c b/testing/ostest/pthread_rwlock.c
@@ -88,6 +88,7 @@ static FAR void *race_cond_thread1(FAR void *data)
       ASSERT(false);
     }
 
+  sem_wait(rc->sem1);
   status = pthread_rwlock_rdlock(rc->rw_lock);
   if (status != 0)
     {
@@ -197,6 +198,7 @@ static FAR void *race_cond_thread2(FAR void *data)
       ASSERT(false);
     }
 
+  sem_post(rc->sem1);
   if (g_race_cond_thread_pos++ != 3)
     {
       printf("pthread_rwlock: Thread order unexpected. Expected 3, got %d",

Original file line number	Diff line number	Diff line change
`@@ -88,6 +88,7 @@ static FAR void race_cond_thread1(FAR void data)`
`88`	`88`	`ASSERT(false);`
`89`	`89`	`}`
`90`	`90`
	`91`	`+ sem_wait(rc->sem1);`
`91`	`92`	`status = pthread_rwlock_rdlock(rc->rw_lock);`
`92`	`93`	`if (status != 0)`
`93`	`94`	`{`
`@@ -197,6 +198,7 @@ static FAR void race_cond_thread2(FAR void data)`
`197`	`198`	`ASSERT(false);`
`198`	`199`	`}`
`199`	`200`
	`201`	`+ sem_post(rc->sem1);`
`200`	`202`	`if (g_race_cond_thread_pos++ != 3)`
`201`	`203`	`{`
`202`	`204`	`printf("pthread_rwlock: Thread order unexpected. Expected 3, got %d",`