/// <summary>
/// Send data to client.
/// </summary>
/// <param name="data">Data array to send.</param>
/// <exception cref="Exception">Thrown if destination is null or destinationPort is 0.</exception>
/// <exception cref="ArgumentException">Thrown on fatal error (contact support).</exception>
/// <exception cref="OverflowException">Thrown if data array length is greater than Int32.MaxValue.</exception>
/// <exception cref="Sys.IO.IOException">Thrown on IO error.</exception>
/// <exception cref="Exception">Thrown if TCP Status is not ESTABLISHED.</exception>
public void Send(byte[] data)
{
if ((StateMachine.RemoteEndPoint.Address == null) || (StateMachine.RemoteEndPoint.Port == 0))
{
throw new InvalidOperationException("Must establish a default remote host by calling Connect() before using this Send() overload");
}
if (StateMachine.Status != Status.ESTABLISHED)
{
throw new Exception("Client must be connected before sending data.");
}
if (data.Length > 536)
{
var chunks = ArrayHelper.ArraySplit(data, 536);
for (int i = 0; i < chunks.Length; i++)
{
var packet = new TCPPacket(StateMachine.LocalEndPoint.Address, StateMachine.RemoteEndPoint.Address, StateMachine.LocalEndPoint.Port, StateMachine.RemoteEndPoint.Port, StateMachine.TCB.SndNxt, StateMachine.TCB.RcvNxt, 20, i == chunks.Length - 2 ? (byte)(Flags.PSH | Flags.ACK) : (byte)(Flags.ACK), StateMachine.TCB.SndWnd, 0, chunks[i]);
OutgoingBuffer.AddPacket(packet);
NetworkStack.Update();
StateMachine.TCB.SndNxt += (uint)chunks[i].Length;
}
}
else
{
var packet = new TCPPacket(StateMachine.LocalEndPoint.Address, StateMachine.RemoteEndPoint.Address, StateMachine.LocalEndPoint.Port, StateMachine.RemoteEndPoint.Port, StateMachine.TCB.SndNxt, StateMachine.TCB.RcvNxt, 20, (byte)(Flags.PSH | Flags.ACK), StateMachine.TCB.SndWnd, 0, data);
OutgoingBuffer.AddPacket(packet);
NetworkStack.Update();
StateMachine.TCB.SndNxt += (uint)data.Length;
}
}
/// <summary>
/// Send data to client.
/// </summary>
/// <param name="data">Data array to send.</param>
/// <exception cref="Exception">Thrown if destination is null or destinationPort is 0.</exception>
/// <exception cref="ArgumentException">Thrown on fatal error (contact support).</exception>
/// <exception cref="OverflowException">Thrown if data array length is greater than Int32.MaxValue.</exception>
/// <exception cref="Sys.IO.IOException">Thrown on IO error.</exception>
/// <exception cref="Exception">Thrown if TCP Status is not ESTABLISHED.</exception>
public void Send(byte[] data)
{
if ((StateMachine.destination == null) || (StateMachine.destinationPort == 0))
{
throw new InvalidOperationException("Must establish a default remote host by calling Connect() before using this Send() overload");
}
if (StateMachine.Status != Status.ESTABLISHED)
{
throw new Exception("Client must be connected before sending data.");
}
if (data.Length > 536)
{
var chunks = ArrayHelper.ArraySplit(data, 536);
for (int i = 0; i < chunks.Length; i++)
{
var packet = new TCPPacket(StateMachine.source, StateMachine.destination, (ushort)StateMachine.localPort, (ushort)StateMachine.destinationPort, StateMachine.SequenceNumber, StateMachine.AckNumber, 20, i == chunks.Length - 2 ? (byte)(Flags.PSH | Flags.ACK) : (byte)(Flags.ACK), 0xFAF0, 0, chunks[i]);
OutgoingBuffer.AddPacket(packet);
NetworkStack.Update();
StateMachine.SequenceNumber += (uint)chunks[i].Length;
}
}
else
{
var packet = new TCPPacket(StateMachine.source, StateMachine.destination, (ushort)StateMachine.localPort, (ushort)StateMachine.destinationPort, StateMachine.SequenceNumber, StateMachine.AckNumber, 20, (byte)(Flags.PSH | Flags.ACK), 0xFAF0, 0, data);
OutgoingBuffer.AddPacket(packet);
NetworkStack.Update();
StateMachine.SequenceNumber += (uint)data.Length;
}
StateMachine.WaitingAck = true;
}
