public bool SendMessage(PipeProtoMessage msg)
{
if (Connected)
{
try
{
msg.WriteToClientStream(stream, true);
statMsgsSent++;
}
catch (Exception ex)
{
Debug.WriteLine("Send message failure: " + ex.Message + " " + ex.StackTrace.ToString());
if (Debugger.IsAttached)
{
Debugger.Break();
}
return(false);
}
return(true);
}
return(false);
}
public static PipeProtoMessage ReadFromStream(Stream stream)
{
int headerLengthExpected = 1 + 1 + 4;
byte[] nextHeader = new byte[headerLengthExpected];
int headerBytesRead = stream.Read(nextHeader, 0, nextHeader.Length);
if (headerBytesRead == headerLengthExpected)
{
byte index = 0;
byte firstByte = nextHeader[index++];
if (firstByte == PipeProto.PACKET_START_MARKER)
{
byte packetOpcode = nextHeader[index++];
UInt32 payloadLength = BitConverter.ToUInt32(new byte[] { nextHeader[index++], nextHeader[index++],
nextHeader[index++], nextHeader[index++] }, 0);
var packetParsed = new PipeProtoMessage
{
Opcode = packetOpcode,
Payload = null
};
if (payloadLength > 0)
{
packetParsed.Payload = new byte[payloadLength];
stream.Read(packetParsed.Payload, 0, (int)payloadLength);
}
return(packetParsed);
}
}
if (headerBytesRead == 0)
{
throw new InvalidOperationException("Connection is now closed, cannot read data.");
}
return(null);
}
#pragma warning disable CS4014
public void Connect()
{
if (Connected)
{
return;
}
stream = new NamedPipeClientStream(".", PipeName, PipeDirection.InOut, PipeOptions.Asynchronous);
try
{
stream.Connect(3000);
}
catch (Exception ex)
{
Disconnect();
if (ConnectionStateChanged != null)
{
ConnectionStateChanged.Invoke(this, Connected);
}
throw ex;
}
Task.Run(new Action(() =>
{
if (ConnectionStateChanged != null)
{
ConnectionStateChanged.Invoke(this, Connected);
}
// Send ping message
var pingMessage = new PipeProtoMessage
{
Opcode = PipeProto.OPCODE_PING
};
try
{
pingMessage.WriteToClientStream(stream, true);
statMsgsSent++;
}
catch (Exception ex)
{
Debug.WriteLine("Send message failure: " + ex.Message + " " + ex.StackTrace.ToString());
if (Debugger.IsAttached)
{
Debugger.Break();
}
Disconnect();
}
// Ask for a repaint
SendRepaintRequest();
while (Connected)
{
// Read next message
PipeProtoMessage incomingMessage = null;
try
{
incomingMessage = PipeProtoMessage.ReadFromStream(stream);
}
catch (Exception ex) { }
if (incomingMessage != null)
{
try
{
if (MessageReceived != null)
{
MessageReceived.Invoke(this, incomingMessage);
statMsgsReceived++;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Debug.WriteLine(ex.Message + " @ " + ex.StackTrace);
if (Debugger.IsAttached)
{
Debugger.Break();
}
}
}
}
}));
}
