public async Task <Guid> ConnectAsync(HostName hostName, string port)
{
if (nameResponse != null)
{
throw new InvalidOperationException("The client is connecting to another server");
}
nameResponse = new TaskCompletionSource <HClientResponseWithNameAndIP>();
// Connect to the server
DatagramSocket socket = new DatagramSocket();
socket.Control.QualityOfService = SocketQualityOfService.LowLatency;
socket.MessageReceived += client_MessageReceived;
await socket.ConnectAsync(hostName, port);
// Create new information
HServerInformation serverInf = new HServerInformation();
serverInf.Socket = socket;
serverInf.Converter = new ShortStreamConverter(socket.OutputStream.AsStreamForWrite());
// Ping the server
serverInf.Converter.Write(clientCONNHeader);
serverInf.Converter.Write(Encoding.UTF8.GetBytes(clientName));
serverInf.Converter.Flush();
// Wait for ping (or timeout)
Task.WhenAny(nameResponse.Task, Task.Delay(CONNECT_TIMEOUT)).Wait();
if (!nameResponse.Task.IsCompleted)
{
nameResponse.TrySetCanceled();
socket.Dispose();
Log(serverInf.Guid, "Connection timeout");
nameResponse = null;
return(default(Guid));
}
// Add new entry
serverInf.Guid = nameResponse.Task.Result.GUID;
serverInf.Name = nameResponse.Task.Result.Name;
serverInf.IP = nameResponse.Task.Result.IP;
Log(serverInf.Guid, "Profile added");
serverList.Add(serverInf);
nameResponse = null;
// Fire event
if (Connected != null)
{
Connected(this, serverInf.Guid);
}
return(serverInf.Guid);
}
public HServerInformation GetServer(Guid guid)
{
HServerInformation serverInf = serverList.FirstOrDefault((inf) => inf.Guid == guid);
if (serverInf.Guid == default(Guid))
{
throw new InvalidOperationException("Guid's not exist");
}
return(serverInf);
}
public void Close(Guid guid)
{
HServerInformation serverInf = serverList.FirstOrDefault((inf) => inf.Guid == guid);
if (serverInf.Guid != default(Guid))
{
serverInf.Converter.Write(clientCLSEPacket);
serverInf.Converter.Flush();
}
}
private void Header_CLSE(BinaryReader reader)
{
Guid guid = new Guid(reader.ReadBytes(16));
HServerInformation serverInf = serverList.FirstOrDefault((inf) => inf.Guid == guid);
if (serverInf != null)
{
serverList.Remove(serverInf);
if (Disconnected != null)
{
Disconnected(this, serverInf.Guid);
}
}
Log(guid, "CLOSE received");
}
private void Header_NAME(BinaryReader reader, string ip)
{
Guid guid = new Guid(reader.ReadBytes(16));
string name = reader.ReadString();
HServerInformation serverInf = serverList.FirstOrDefault((inf) => inf.Guid == guid);
if (serverInf != null)
{
serverInf.Name = name;
}
else if (nameResponse != null)
{
HClientResponseWithNameAndIP response = new HClientResponseWithNameAndIP()
{
GUID = guid,
Name = name,
IP = ip
};
nameResponse.SetResult(response);
}
Log(guid, "NAME received: \"" + name + "\"");
}