protected virtual void OnSent(CommsEventArgs e)
{
if (Sent != null)
{
Sent(this, e);
}
}
protected virtual void OnReceived(CommsEventArgs e)
{
if (Received != null)
{
Received(this, e);
}
}
private void ReadAvailable(TcpClient client)
{
Task.Run(() =>
{
using (var s = client.GetStream())
{
CommsEventArgs args = null;
var data = _ReadPacketData(s);
VarPacket p = null;
try
{
p = VarPacket.CreateReceived(this, LocalEndPoint, data);
}
catch (ArgumentException ex)
{
args = new CommsEventArgs(p, client.Client.RemoteEndPoint as IPEndPoint, ex.Message);
_listenerThread.Report(Tuple.Create(args, false, (VarPacket)null));
return;
}
args = new CommsEventArgs(p, client.Client.RemoteEndPoint as IPEndPoint, null);
_listenerThread.Report(Tuple.Create(args, false, p.IsWriteRequest ? p : null));
if (p.IsReadRequest)
{
_RespondToRequest(p, client.Client.RemoteEndPoint as IPEndPoint, s);
}
}
});
}
private void _RespondToRequest(VarPacket packet, IPEndPoint endPoint, NetworkStream ns)
{
bool isok = true;
var names = packet.RequestVarNames;
var values = new List <decimal>(names.Length);
foreach (var n in names)
{
Variable <decimal> v;
if (!LocalVariables.TryGet(n, out v))
{
isok = false;
break;
}
values.Add(v.Value);
}
var p = VarPacket.CreateReadResponse(this, endPoint, isok ? values : null);
ns.Write(p.Data, 0, p.Data.Length);
var args = new CommsEventArgs(p, LocalEndPoint, null);
_listenerThread.Report(Tuple.Create(args, true, (VarPacket)null));
}
public void Send(VarPacket packet)
{
Task.Run(() =>
{
CommsEventArgs args = null;
try
{
using (var client = new TcpClient(packet.EndPoint.Address.ToString(), packet.EndPoint.Port)
{
NoDelay = this.NoDelay
})
using (var s = client.GetStream())
{
s.Write(packet.Data, 0, packet.Data.Length);
s.Flush();
args = new CommsEventArgs(packet, LocalEndPoint, null);
_listenerThread.Report(Tuple.Create(args, true, (VarPacket)null));
if (packet.IsReadRequest)
{
var data = _ReadPacketData(s);
VarPacket p = null;
try
{
p = VarPacket.CreateReceived(this, LocalEndPoint, data);
}
catch (ArgumentException ex)
{
args = new CommsEventArgs(p, client.Client.RemoteEndPoint as IPEndPoint, ex.Message);
_listenerThread.Report(Tuple.Create(args, false, (VarPacket)null));
return;
}
args = new CommsEventArgs(p, client.Client.RemoteEndPoint as IPEndPoint, p.IsReadResponse ? null : "Wrong packet type received.");
_listenerThread.Report(Tuple.Create(args, false, (VarPacket)null));
}
}
}
catch (Exception ex)
{
args = new CommsEventArgs(packet, LocalEndPoint, ex.Message);
_listenerThread.Report(Tuple.Create(args, true, (VarPacket)null));
}
});
}
