def generate_next_packet(self):
time_delta = distributions.gamma(settings.GAMMA_SHAPE, settings.GAMMA_SCALE)
packet = Packet(self.id, Scheduler.time+time_delta)
self.packets_generated += 1
if len(self.queue)-1 < settings.BUFFER: # since the queue adds each packet as it
# logging # is *decided* when it is generated and
log.success(" ".join([str(self.id), "generated packet", str(packet.id)])) # not as it *is* generated, one element
# logging # the queue is not counted
self.queue.append(packet)
heap_push(Scheduler.events, packet)
else:
# logging
log.error(" ".join([str(self.id), "lost packet", str(packet.id), "(queue full)"]))
# logging
self.packets_lost += 1
packet.is_lost = True
heap_push(Scheduler.events, packet) # the packet is pushed into the event
def _queue_packet(self, packet):
packet.is_queued = True
packet.time = max(self.sending_until, self.receiving_until) # the packet is scheduled for resending
heap_push(Scheduler.events, packet) # as soon as the node is free;
if not packet.is_queued: # only enques the packet if it had just
self.queue.append(packet) # been generated, avoiding reenqueueing
