/*
* nk_thread_destroy
*
* destroys a thread and reclaims its memory (its stack page mostly)
* interrupts should be off
*
* @t: the thread to destroy
*
*/
void
nk_thread_destroy (nk_thread_id_t t)
{
nk_thread_t * thethread = (nk_thread_t*)t;
SCHED_DEBUG("Destroying thread (%p, tid=%lu)\n", (void*)thethread, thethread->tid);
ASSERT(!irqs_enabled());
nk_dequeue_thread_from_runq(thethread);
dequeue_thread_from_tlist(thethread);
/* remove it from any wait queues */
nk_dequeue_entry(&(thethread->wait_node));
/* remove its own wait queue
* (waiters should already have been notified */
nk_thread_queue_destroy(thethread->waitq);
free(thethread->stack);
free(thethread);
}
enum twi_status twi_transfer_wait(struct twi_transfer *xfer,
uint16_t timeout_ms)
{
enum twi_status status;
uint32_t timeout = (uint32_t)timeout_ms * 100;
while (1) {
status = twi_transfer_get_status(xfer);
if (status != TWI_STAT_INPROGRESS)
break;
if (timeout-- == 0) {
twi_transfer_cancel(xfer);
status = TWI_STAT_TIMEOUT;
break;
}
_delay_us(10);
if (!irqs_enabled()) {
if (TWCR & (1 << TWINT))
twi_interrupt_handler();
}
}
return status;
}
