37 lines
661 B
C
37 lines
661 B
C
#include <rt/assert.h>
|
|
#include <rt/sem.h>
|
|
#include <rt/task.h>
|
|
#include <rt/trap.h>
|
|
|
|
static const int n = 10;
|
|
static RT_SEM(sem, 0);
|
|
|
|
static void poster(void)
|
|
{
|
|
rt_task_drop_privilege();
|
|
for (int i = 0; i < n; ++i)
|
|
{
|
|
rt_task_sleep(5);
|
|
rt_sem_post(&sem);
|
|
}
|
|
|
|
rt_task_sleep(15);
|
|
rt_sem_post(&sem);
|
|
}
|
|
|
|
static void waiter(void)
|
|
{
|
|
rt_task_drop_privilege();
|
|
for (int i = 0; i < n; ++i)
|
|
{
|
|
rt_assert(rt_sem_timedwait(&sem, 10), "wait timed out");
|
|
}
|
|
|
|
rt_assert(!rt_sem_timedwait(&sem, 10), "wait didn't time out");
|
|
|
|
rt_trap();
|
|
}
|
|
|
|
RT_TASK(poster, RT_STACK_MIN, 1);
|
|
RT_TASK(waiter, RT_STACK_MIN, 1);
|