/// <summary>
/// Try to send a presentation packet for MAX_NETFAIL_ATTEMPTS time and
/// execute the delaget NetworkCannotConnect if fails.
/// </summary>
private void SendPresentationPacket()
{
int attempts = 0; // attempts to send presentation
// Tries to send the PresentationPacket for N times. If it fails, calls the relative callback
while (!network.send(new PresentationPacket(Settings.Instance.LocalPeer)))
{
if (++attempts > MAX_NETFAIL_ATTEMPTS)
{
NetworkCannotConnect?.Invoke(); // failed N times: calling the delegate
return;
}
System.Threading.Thread.Sleep(3000);
}
}
protected override void execute()
{
int attempts = 0; // a counter to take trace of consecutive attempts to send
// I will continue while it will not be telled me to stop and eventually I will
// stuck on the visibiliyChange event if someone calls Reset() on it.
while (!Stop && visibilityChange.WaitOne())
{
if (Stop)
{
break; // quit
}
// will store the result of the send() operation
bool sendresult = false;
while (!sendresult)
{
sendresult = network.send(new KeepalivePacket(Settings.Instance.LocalPeer.Id,
Settings.Instance.LocalPeer.Name,
Settings.Instance.LocalPeer.Ipaddress));
if (sendresult) // if the send() failed we don't want to wait, we want to try again
{
WaitingEvent.WaitOne(Settings.Instance.HELLO_INTERVAL);
attempts = 0; // reset attempts
}
else if (++attempts == MAX_SEND_ATTEMPTS)
{
CannotSend(); // TODO Do something
return;
}
}
}
}
