//----------------------
public int udpBegin(ushort port, ref int socketNumber)
{
EthernetUdpNet client = NewUdpClient(ref socketNumber);
if (client != null)
{
return(client.begin(port));
}
// all UdpClient sockets used
setExceptionMessage(new SocketException(10024));
return(-1);
}
private bool tryGetUdpClient(int socketNumber, out EthernetUdpNet updClient)
{
updClient = null;
if (socketNumber < 0 || socketNumber >= MAX_UDP_CLIENTS)
{
return(false);
}
updClient = _udpClients[socketNumber];
if (updClient == null)
{
return(false);
}
return(true);
}
public EthernetUdpNet NewUdpClient(ref int socketNumber)
{
lock (_udpClients)
{
for (int i = 0; i < _udpClients.Length; i++)
{
if (_udpClients[i] == null || !_udpClients[i].Allocated)
{
if (_udpClients[i] == null)
{
_udpClients[i] = new EthernetUdpNet();
}
_udpClients[i].Allocated = true;
socketNumber = i;
return(_udpClients[i]);
}
}
}
socketNumber = -1;
return(null);
}