C++ (Cpp) vrtx_current_task Beispiele

Beispiel #1

static int __sc_delay(struct task_struct *curr, struct pt_regs *regs)
{
	vrtxtask_t *task = vrtx_current_task();
	sc_delay(__xn_reg_arg1(regs));
	if (xnthread_test_info(&task->threadbase, XNBREAK))
		return -EINTR;
	return 0;
}

Beispiel #2

void sc_spend(int semid, long timeout, int *errp)
{
	vrtxtask_t *task;
	vrtxsem_t *sem;
	spl_t s;

	xnlock_get_irqsave(&nklock, s);

	sem = xnmap_fetch(vrtx_sem_idmap, semid);

	if (sem == NULL) {
		*errp = ER_ID;
		goto unlock_and_exit;
	}

	*errp = RET_OK;

	if (sem->count > 0)
		sem->count--;
	else {
		if (xnpod_unblockable_p()) {
			*errp = -EPERM;
			goto unlock_and_exit;
		}

		task = vrtx_current_task();

		task->vrtxtcb.TCBSTAT = TBSSEMA;

		if (timeout)
			task->vrtxtcb.TCBSTAT |= TBSDELAY;

		xnsynch_sleep_on(&sem->synchbase, timeout, XN_RELATIVE);

		if (xnthread_test_info(&task->threadbase, XNBREAK))
			*errp = -EINTR;
		else if (xnthread_test_info(&task->threadbase, XNRMID))
			*errp = ER_DEL;	/* Semaphore deleted while pending. */
		else if (xnthread_test_info(&task->threadbase, XNTIMEO))
			*errp = ER_TMO;	/* Timeout. */
	}

      unlock_and_exit:

	xnlock_put_irqrestore(&nklock, s);
}