/// <summary>
/// Wait for a client to connect to the socket
/// </summary>
/// <returns>TcpClient structure for the newly connected client</returns>
public TcpClient WaitForConnection()
{
TcpClient client = null;
if (state == LISTENERSTATE.LISTENING)
{
state = LISTENERSTATE.WAITING;
while (state == LISTENERSTATE.WAITING)
{
lock (listener)
{
if (listener.Pending())
{
client = listener.AcceptTcpClient();
state = LISTENERSTATE.LISTENING;
return(client);
}
}
Thread.Sleep(100); //TODO: Add timout
}
}
return(null);
///TODO: Throw transport exception if not in listening state and attempting
///to wait for connection.
}
/// <summary>
/// Stop the transport/socket
/// </summary>
public void Stop()
{
switch (state)
{
case LISTENERSTATE.STOPPED:
case LISTENERSTATE.STOPPING:
/// listener is being stopped or is stopped, no action
case LISTENERSTATE.WAITING:
state = LISTENERSTATE.STOPPING;
/// The listener is in a safe state to stop
if (listener != null)
{
lock (listener)
{
listener.Stop();
}
}
state = LISTENERSTATE.STOPPED;
break;
default:
break;
}
}
/// <summary>
/// start the socket and begin listening
/// </summary>
public void Start()
{
if (state == LISTENERSTATE.STOPPED)
{
/// Create our listening socket to wait for connection/ping
if (listener == null)
{
try
{
IPAddress localAddr = IPAddress.Parse(host);
listener = new TcpListener(localAddr, port);
}
catch (Exception e)
{
Debug.WriteLine("can not start listener, error{0}", e.Message);
state = LISTENERSTATE.STOPPED;
return;
}
}
listener.Start();
state = LISTENERSTATE.LISTENING;
}
}
/// <summary>
/// start the socket and begin listening
/// </summary>
public void Start()
{
if (state == LISTENERSTATE.STOPPED)
{
/// Create our listening socket to wait for connection/ping
if (listener == null)
{
try
{
IPAddress localAddr = IPAddress.Parse(host);
listener = new TcpListener(localAddr, port);
}
catch (Exception e)
{
Debug.WriteLine("can not start listener, error{0}", e.Message);
state = LISTENERSTATE.STOPPED;
return;
}
}
listener.Start();
state = LISTENERSTATE.LISTENING;
}
}
/// <summary>
/// Stop the transport/socket
/// </summary>
public void Stop()
{
switch (state)
{
case LISTENERSTATE.STOPPED:
case LISTENERSTATE.STOPPING:
/// listener is being stopped or is stopped, no action
case LISTENERSTATE.WAITING:
state = LISTENERSTATE.STOPPING;
/// The listener is in a safe state to stop
if (listener != null)
{
lock (listener)
{
listener.Stop();
}
}
state = LISTENERSTATE.STOPPED;
break;
default:
break;
}
}
/// <summary>
/// Wait for a client to connect to the socket
/// </summary>
/// <returns>TcpClient structure for the newly connected client</returns>
public TcpClient WaitForConnection()
{
TcpClient client = null;
if (state == LISTENERSTATE.LISTENING)
{
state = LISTENERSTATE.WAITING;
while (state == LISTENERSTATE.WAITING)
{
lock (listener)
{
if (listener.Pending())
{
client = listener.AcceptTcpClient();
state = LISTENERSTATE.LISTENING;
return client;
}
}
Thread.Sleep(100); //TODO: Add timout
}
}
return null;
///TODO: Throw transport exception if not in listening state and attempting
///to wait for connection.
}
