/// <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;
}
}