private void ReceiveCallback(IAsyncResult asyncResult)
{
ConnectionInfo connection = asyncResult.AsyncState as ConnectionInfo;
try
{
Socket senderSocket = connection.Socket;
// vom pastra rezultat returnat daca s-a citit cu succes
SocketError response;
int buffSize = senderSocket.EndReceive(asyncResult, out response);
if (response == SocketError.Success)
{
byte[] payload = new byte[buffSize];
// aici se copie toate datele din stream
Array.Copy(connection.Data, payload, payload.Length);
PayloadHandler.Handle(payload, connection);
}
}
catch (Exception e)
{
Console.WriteLine($"We cannot receive buffer data: {e.Message}");
}
// dupa ce am citit datele din o conexiune trebuie sa ascultam date noi
finally
{
try
{
connection.Socket.BeginReceive(connection.Data, 0, connection.Data.Length,
SocketFlags.None, ReceiveCallback, connection);
}
catch (Exception e)
{
// cand un socket s-a conectat, consulam, si deconectam
Console.Write($"{e.Message}");
var address = connection.Socket.RemoteEndPoint.ToString();
// stergem din storage
ConnectionStorage.Remove(address);
connection.Socket.Close();
}
}
}
private void ReceiveCallBack(IAsyncResult asyncResult)
{
ConnectionInfo connection = asyncResult.AsyncState as ConnectionInfo;
try
{
Socket senderSocket = connection.Socket;
SocketError response;
int buffsize = senderSocket.EndReceive(asyncResult, out response);
if (response == SocketError.Success)
{
byte[] payload = new byte[buffsize];
Array.Copy(connection.Data, payload, payload.Length);
PayloadHandler.Handle(payload, connection);
}
}
catch (Exception e)
{
MessageBox.Show("Could not receive the data from the Broker !", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
try
{
connection.Socket.BeginReceive(connection.Data, 0, connection.Data.Length, SocketFlags.None, ReceiveCallBack, connection);
}
catch (Exception e)
{
//MessageBox.Show(e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
var address = connection.Socket.RemoteEndPoint.ToString();
ConnectionStorage.Remove(address);
connection.Socket.Close();
}
}
}
private void RecieveCallback(IAsyncResult asyncResult)
{
ConnectionInfo connection = asyncResult.AsyncState as ConnectionInfo;
try
{
Socket senderSocket = connection.Socket;
SocketError response;
int buffSize = senderSocket.EndReceive(asyncResult, out response);
if (response == SocketError.Success)
{
byte[] payload = new byte[buffSize];
Array.Copy(connection.Data, payload, payload.Length);
PayloadHandler.Handle(payload, connection);
}
}
catch (Exception e)
{
Console.WriteLine($"Cant recieve {e.Message}");
}
finally
{
try
{
connection.Socket.BeginReceive(connection.Data, 0, connection.Data.Length, SocketFlags.None,
RecieveCallback, connection);
}
catch (Exception e) {
Console.WriteLine($"{e.Message}");
var address = connection.Socket.RemoteEndPoint.ToString();
ConnectionStorage.Remove(address);
connection.Socket.Close();
}
}
}