/* Producer - Resolve an IP address and add it to the queue. */
void
dns_resolver (char *addr)
{
pthread_mutex_lock (&gdns_thread.mutex);
/* queue is not full and the IP address is not in the queue */
if (!gqueue_full (gdns_queue) && !gqueue_find (gdns_queue, addr)) {
/* add the IP to the queue */
gqueue_enqueue (gdns_queue, addr);
pthread_cond_broadcast (&gdns_thread.not_empty);
}
pthread_mutex_unlock (&gdns_thread.mutex);
}
// WV: This is the function you need to select/adapt
static void put_pd(FreePacketDescriptorStore fpds, PacketDescriptor pd) {
int response = 0;
real_fpds rfpds = (real_fpds) fpds;
pthread_mutex_lock(&rfpds->lock);
response = gqueue_enqueue(rfpds->basic_store, (GQueueElement) pd);
if (response) {
rfpds->current_length++;
pthread_cond_init(rfpds->non_empty, 1);
} else
DIAGNOSTICS("BUG: Failed to insert element into FPDS\n");
pthread_mutex_unlock(&rfpds->lock);
}
void blocking_get_pd(FreePacketDescriptorStore fpds, PacketDescriptor *pd_ptr) {
int response = 0;
real_fpds rfpds = (real_fpds) fpds;
pthread_mutex_unlock(&rfpds->lock);
while (rfpds->current_length == 0) {
}
response = gqueue_enqueue(rfpds->basic_store, (GQueueElement *) pd_ptr);
if (response)
rfpds->current_length++;
else
DIAGNOSTICS("BUG: Failed to recover element from non-empty FPDS\n");
pthread_mutex_lock(&rfpds->unlock);
}
