public virtual async ValueTask <IConnection> AcceptAsync(CancellationToken cancellationToken = default)
{
using (cancellationToken.Register(_listenerCancellationCallback))
{
while (true)
{
try
{
var socket = await _listener.AcceptSocketAsync();
_logger.SocketAccepted(socket.RemoteEndPoint, socket.LocalEndPoint);
return(_options.CreateConnection(socket));
}
catch (ObjectDisposedException)
{
// A call was made to UnbindAsync/DisposeAsync just return null which signals we're done
return(null);
}
catch (SocketException e) when(e.SocketErrorCode == SocketError.OperationAborted)
{
// A call was made to UnbindAsync/DisposeAsync just return null which signals we're done
return(null);
}
catch (InvalidOperationException)
{
// Stopping the server immediately can cause this exception
// "Not listening. You must call the Start() method before calling this method."
return(null);
}
catch (SocketException)
{
// The connection got reset while it was in the backlog, so we try again.
_logger.ConnectionReset(connectionId: "(null)");
}
}
}
}