/// <exception cref="System.IO.IOException"></exception>
internal virtual void EnsureOpen(int timeout)
{
//Log.Out($"NameServiceClient.EnsureOpen");
_closeTimeout = 0;
if (SoTimeout != 0)
{
_closeTimeout = Math.Max(SoTimeout, timeout);
}
var localPort = (SmbConstants.Lport == 0) ? _lport : SmbConstants.Lport;
// If socket is still good, the new closeTimeout will
// be ignored; see tryClose comment.
if (
_socketSender == null ||
_socketSender.LocalEndPoint == null ||
_socketSender.GetLocalPort() != localPort ||
!IPAddress.Any.Equals(_socketSender.GetLocalInetAddress())
)
{
if (_socketSender != null)
{
_socketSender.Dispose();
_socketSender = null;
}
_socketSender = new SocketEx(AddressFamily.InterNetwork,
SocketType.Dgram,
ProtocolType.Udp);
_socketSender.Bind(new IPEndPoint(IPAddress.Any, localPort));
if (_waitResponse)
{
if (_thread != null)
{
_thread.Cancel(true);
_thread.Dispose();
}
_thread = new Thread(this);
_thread.SetDaemon(true);
_thread.Start(true);
}
}
}