// send sends a packet from the given computer
// Values of senderLoss and acknowledgementLoss impact whether the packet is lost at the sender level or the receiver ACK level
func send(c *sr.Computer, senderLoss, acknowledgementLoss bool) {
if sequenceNumber, err := c.Send(senderLoss, acknowledgementLoss); err != nil {
log.Println("Error - ", err)
} else {
log.Printf("Sender sent packet with sequence number %d\n", sequenceNumber)
}
}
// receiveHandler receives packets on the computer and passes knowledge of any ACKS to the channel
func receiveHandler(c *sr.Computer, name string, receivedACK chan int) {
for {
packet, err := c.Receive()
if packet.ACK {
receivedACK <- 1
}
if err != nil {
log.Println("Error - ", err)
} else {
log.Printf("%s received: %v\n", name, packet)
}
}
}