protected IPAddress GetServerIpAddress(SNS.AddressFamily addressFamily, string server)
{
foreach (IPAddress address in Dns.GetHostAddresses(server))
{
if (address.AddressFamily == addressFamily)
{
return(address);
}
}
string str = string.Format("Cant find ip address for server [{0}] on protocol [{1}].", server, addressFamily.ToString());
throw new SocketException(str);
}
//
//
//
public void Listen(SNS.AddressFamily addressFamily, int port, int timeoutSec, string stopFile, Dictionary <string, string> parameters)
{
DateTime startTime = System.DateTime.Now;
SNS.Socket listenSocket = null;
try
{
// delete stop file
File.Delete(stopFile);
// create the main listening socket
listenSocket = new SNS.Socket(addressFamily, SNS.SocketType.Stream, SNS.ProtocolType.Tcp);
// set socket options
listenSocket.SetSocketOption(SNS.SocketOptionLevel.Socket, SNS.SocketOptionName.ReuseAddress, 1);
listenSocket.SetSocketOption(SNS.SocketOptionLevel.Socket, SNS.SocketOptionName.Linger, new SNS.LingerOption(false, 0));
listenSocket.SetSocketOption(SNS.SocketOptionLevel.Tcp, SNS.SocketOptionName.NoDelay, 1);
// bind the listening socket
if (addressFamily == SNS.AddressFamily.InterNetworkV6)
{
listenSocket.Bind(new IPEndPoint(IPAddress.IPv6Any, port));
}
else
if (addressFamily == SNS.AddressFamily.InterNetwork)
{
listenSocket.Bind(new IPEndPoint(IPAddress.Any, port));
}
else
{
throw new SocketException("Cant bind server socket. Unknown address family " + addressFamily.ToString());
}
// listen
listenSocket.Listen(SocketConstants.SOCKET_BACKLOG);
Console.WriteLine("SocketServer - listening on port [{0}] family [{1}]", port, addressFamily.ToString());
// accept client connections - run in a thread pool thread
using (MyThreadPoolManager tpm = new MyThreadPoolManager(50, 5000)) // max 50 concurrent clients
{
while (true)
{
// see if it is time to stop the server
if (File.Exists(stopFile)) // stop listening if stop file exists
{
_stop = true;
}
else
if (timeoutSec > 0) // stop listening if server timed out
{
TimeSpan ts = System.DateTime.Now.Subtract(startTime);
if (ts.TotalSeconds >= timeoutSec)
{
_stop = true;
}
}
if (_stop) // time to go
{
tpm.Shutdown();
Console.WriteLine("SocketServer - listening on port [{0}] stopping...", port);
break;
}
if (listenSocket.Poll(200000, SNS.SelectMode.SelectRead)) // ready to accept - 0.2 sec wait max
{
SNS.Socket clientSocket = listenSocket.Accept();
T tpi = new T();
tpi.Parameters = parameters;
tpi.SetRawSocket(clientSocket);
tpm.Queue(tpi);
}
}
//tpm.WaitUntilAllStarted() ; // servers alive until all queued sockets execute
}
}
finally // tidy up
{
Console.WriteLine("SocketServer [{0}] - listening on port [{1}] stopped", addressFamily, port);
try
{
listenSocket.Shutdown(SNS.SocketShutdown.Both);
}
catch (Exception) {}
try
{
listenSocket.Close();
}
catch (Exception) {}
}
} // end method
