Je suis en train de lire la réponse de texte ASCII à partir d'une prise de streaming open tcplecture à partir d'une prise en C#
C'est ce que je suis venu avec jusqu'à présent. Je veux savoir quelle est la meilleure façon de faire cela qui inclut la gestion des erreurs. Dois-je également vérifier l'erreur SocketError après l'appel de réception dans la boucle do?
IPEndPoint ep = new IPEndPoint(IPAddress.Parse("192.168.1.1"), 9000);
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
sock.SendTimeout = 5000;
sock.ReceiveTimeout = 5000;
if (null != sock)
{
try
{
sock.Connect(ep);
if (sock.Connected)
{
// Blocks until send returns.
int bytesSent = sock.Send(buffer);
Console.WriteLine("Sent {0} bytes.", bytesSent);
//get the first 4 bytes, should be the lenngth of the rest of the response.
byte[] response = new byte[4];
int bytesRec = sock.Receive(response);
int totalBytesRec = 0;
if (4 == bytesRec)
{
int len = BitConverter.ToInt32(response, 0);
response = new byte[len];
Console.WriteLine("Trying to get {0} bytes.", len);
bytesRec = 0;
do
{
bytesRec = sock.Receive(response);
totalBytesRec += bytesRec;
forecast += Encoding.ASCII.GetString(response, 0, bytesRec);
} while (totalBytesRec < len && bytesRec > 0);
if (totalBytesRec != len)
throw new Exception("The total bytes recieved from manager did not equal the expected bytes");
}
else
throw new Exception("Unable to get the response size from the manager");
Console.WriteLine("Received {0} bytes.", totalBytesRec);
}
}
catch (SocketException ex)
{
Console.WriteLine("{0} Error code: {1}.", ex.Message, ex.ErrorCode);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
sock.Shutdown(SocketShutdown.Both);
sock.Close();
}
}