private void ReceiveCallback(IAsyncResult ar)
{
StateObject state = (StateObject)ar.AsyncState;
Socket handler = state.workerSocket;
string name = GetSocketName(handler);
int bytesRec = 0;
try
{
bytesRec = handler.EndReceive(ar);
} catch (Exception e)
{
WriteLog(LogStrings.ExceptionWasThrown(e));
return;
}
WriteLog(LogStrings.BytesWereReceivedSuccessfuly(bytesRec, name));
string msg = Encoding.UTF8.GetString(state.buffer, 0, bytesRec);
WriteLog(LogStrings.MessageWasReceivedSuccessfuly(msg, name));
if (msg.IndexOf(endMessage) != -1)
{
Invoke(new Method(() => clientsListBox.Items.Remove(clientsListBox.Items[clientsListBox.Items.IndexOf(name)])));
WriteLog(LogStrings.ClosingSocket(name));
RemoveClient(name);
try
{
handler.Shutdown(SocketShutdown.Both);
handler.Close();
} catch (Exception e)
{
WriteLog(LogStrings.ExceptionWasThrown(e));
}
return;
}
string[] paths = msg.Split(';');
string response = MultiplyVectorAndMatrix(paths[0], paths[1]);
if (response == null)
{
response = invalidInputException;
}
byte[] bytes = Encoding.UTF8.GetBytes(response);
WriteLog(LogStrings.AttemptingToSendMessageToClient(response, name));
handler.BeginSend(bytes, 0, bytes.Length, 0, new AsyncCallback(SendCallback), handler);
}