void Listen()
{
while (this.continueListening)
{
try
{
Byte[] bytes = new Byte[5];
int n_bytes = 0;
try
{
n_bytes = StreamRead(bytes);
}
catch (IOException ex)
{
n_bytes = 0;
}
if (n_bytes >= 5) //minimum number of bytes for CMD + length to follow
{
string cmd = System.Text.Encoding.UTF8.GetString(bytes, 0, 3);
int following_length = BitConverter.ToInt16(bytes, 3);
byte[] following_bytes = new byte[following_length];
if (following_length > 0)
{
StreamRead(following_bytes);
}
if (cmd != "PNG")
{
Console.WriteLine($" >> command recieved from the serveur : {cmd} de taille {following_length} {n_bytes}");
}
try
{
NomCommande cmd_type = (NomCommande)Enum.Parse(typeof(NomCommande), cmd);
if (cmd != "PNG")
{
LogWriter.Write($"command recieved: {cmd}, following_length: {following_length}");
}
MyClient.methods[cmd_type](following_bytes, this);
}
catch (Exception ex)
{
//write_in_log
LogWriter.Write($"CMD ERROR, CMD: {cmd}, following_length: {following_length}, EX:{ex}");
this.Stream.Flush();
}
}
Thread.Sleep(10);
}
catch (Exception ex) //à faire: prendre en compte la fermeture innatendue du canal par le serveur
{
this.continueListening = false;
LogWriter.Write($"ERROR: Listen crashed: {ex}");
Console.WriteLine(" >> " + ex.ToString());
}
}
}
//Serialization
/// <summary>
/// Transform a <see cref="NomCommande"/> in a list of <see cref="byte"/>
/// <para>Can be deserialized by the methods the server</para>
/// </summary>
/// <param name="nomCommande"></param>
/// <returns></returns>
private static byte[] serializationMessage(NomCommande nomCommande)
{
var cmd = Encoding.UTF8.GetBytes(nomCommande.ToString());
var message_length = BitConverter.GetBytes((Int16)0);
byte[] msg = new byte[cmd.Length + message_length.Length];
cmd.CopyTo(msg, 0);
message_length.CopyTo(msg, cmd.Length);
return(msg);
}
static void Listen(NetworkStream stream)
{
bool continuer = true;
while (continuer)
{
try
{
Byte[] bytes = new Byte[5];
int NombreOctets = stream.Read(bytes, 0, bytes.Length);
if (NombreOctets >= 5) //minimum number of bytes for CMD + length to follow
{
string cmd = System.Text.Encoding.UTF8.GetString(bytes, 0, 3);
int following_length = BitConverter.ToInt16(bytes, 3);
byte[] following_bytes = new byte[following_length];
stream.Read(following_bytes, 0, following_bytes.Length);
//Console.WriteLine($" >> command recieved from the serveur : {cmd} de taille {following_length} {NombreOctets}");
string packet_string = System.Text.Encoding.UTF8.GetString(following_bytes, 0, following_bytes.Length);
NomCommande cmd_type = (NomCommande)Enum.Parse(typeof(NomCommande), cmd);
if (cmd_type == NomCommande.MSG)
{
Messaging.RecieveMessage(following_bytes);
}
else if (cmd_type == NomCommande.OUS)
{
Messaging.RecieveOtherUsers(following_bytes, ref connected_users);
}
}
}
catch (Exception ex) //à faire: prendre en compte la fermeture innatendue du canal par le serveur
{
continuer = false;
Console.WriteLine(" >> " + ex.ToString());
}
}
}
