/// <summary>
/// Method responsible for disconnect client from server.
/// </summary>
public void Disconnect()
{
try
{
_networkListener.Stop();
}
catch (Exception ex)
{
Console.WriteLine($"Error: {ex.Message}.");
}
}
public void Stop()
{
running = false;
listener.Stop();
if (listenerThread == null)
{
return;
}
bool joined = listenerThread.Join(10000);
if (!joined && listenerThread.ThreadState != ThreadState.Stopped)
{
logger.Warn("Failed to shut down ChannelListener.");
}
}
/// <summary>
/// Listen indefinitely for network connections on the specified port.
/// </summary>
private async Task ListenForConnectionsAsync()
{
INetworkListener listener = null;
try
{
var noDelay = Options?.TcpNoDelay ?? DicomServiceOptions.Default.TcpNoDelay;
listener = NetworkManager.CreateNetworkListener(IPAddress, Port);
await listener.StartAsync().ConfigureAwait(false);
IsListening = true;
while (!_cancellationSource.IsCancellationRequested)
{
await _hasNonMaxServicesFlag.WaitAsync().ConfigureAwait(false);
var networkStream = await listener
.AcceptNetworkStreamAsync(_certificateName, noDelay, _cancellationSource.Token)
.ConfigureAwait(false);
if (networkStream != null)
{
var scp = CreateScp(networkStream);
if (Options != null)
{
scp.Options = Options;
}
var serviceTask = scp.RunAsync();
lock (_services)
{
_services.Add(new RunningDicomService(scp, serviceTask));
}
_hasServicesFlag.Set();
if (IsServicesAtMax)
{
_hasNonMaxServicesFlag.Reset();
}
}
}
}
catch (OperationCanceledException)
{
}
catch (Exception e)
{
Logger.Error("Exception listening for DICOM services, {@error}", e);
Stop();
Exception = e;
}
finally
{
listener?.Stop();
IsListening = false;
}
}
/// <summary>
/// Stop the listener
/// </summary>
public void Stop()
{
_left.Stop();
_right.Stop();
}
public virtual async ValueTask UnbindAsync(CancellationToken cancellationToken = default)
{
_logger.UnbindListenSocket(_ipEndpoint);
_listener.Stop();
}
/// <summary>
/// Stop the service, waiting for a period of time for before shutdown
/// </summary>
/// <param name="timeout">The number of milliseconds to wait, 0 for immediate shutdown, < 0 for infinite wait</param>
public void Stop(int timeout)
{
if ((Interlocked.CompareExchange(ref _state,
(int)ServiceState.StopPending, (int)ServiceState.Running) ==
(int)ServiceState.Running))
{
try
{
NewConnectionEvent = null;
lock (_subServices)
{
foreach (ProxyNetworkService subService in _subServices)
{
subService.Stop(timeout);
}
}
_listener.Stop();
// Only stop connections at the root
if (_parentService == null)
{
ConnectionEntry[] graphs;
lock (_connections)
{
graphs = _connections.ToArray();
}
if (graphs.Length > 0)
{
foreach (ConnectionEntry g in graphs)
{
if (timeout == 0)
{
CloseConnection(g);
}
else
{
g.SetTimeout(timeout, false);
}
}
}
else
{
CompleteStop();
}
}
}
catch (Exception ex)
{
_logger.LogException(ex);
}
}
else if ((timeout == 0) && (_state == (int)ServiceState.StopPending) && (_parentService == null))
{
ConnectionEntry[] graphs;
lock (_connections)
{
graphs = _connections.ToArray();
}
foreach (ConnectionEntry g in graphs)
{
CloseConnection(g);
}
}
}
