private async Task <TcpListenerStatus> StartTcpListener()
{
var status = new TcpListenerStatus();
try
{
var host = new Uri(Configuration.Core.ServerUrl).DnsSafeHost;
var port = 9090;
if (string.IsNullOrWhiteSpace(Configuration.Core.TcpServerUrl) == false)
{
var uri = new Uri(Configuration.Core.TcpServerUrl);
host = uri.DnsSafeHost;
if (uri.IsDefaultPort == false)
{
port = uri.Port;
}
}
foreach (var ipAddress in await GetTcpListenAddresses(host))
{
if (_logger.IsInfoEnabled)
{
_logger.Info($"RavenDB TCP is configured to use {Configuration.Core.TcpServerUrl} and bind to {ipAddress} at {port}");
}
var listener = new TcpListener(ipAddress, port);
status.Listeners.Add(listener);
status.Port = port;
listener.Server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
listener.Start();
for (int i = 0; i < 4; i++)
{
ListenToNewTcpConnection(listener);
}
}
return(status);
}
catch (Exception e)
{
foreach (var tcpListener in status.Listeners)
{
tcpListener.Stop();
}
if (_tcpLogger.IsOperationsEnabled)
{
_tcpLogger.Operations(
$"Failed to start tcp server on {Configuration.Core.TcpServerUrl}, tcp listening disabled", e);
}
throw;
}
}
private TcpListenerStatus StartTcpListener()
{
string host = "<unknown>";
var port = 0;
var status = new TcpListenerStatus();
try
{
host = new Uri(Configuration.Core.ServerUrl).DnsSafeHost;
if (string.IsNullOrWhiteSpace(Configuration.Core.TcpServerUrl) == false)
{
if (ushort.TryParse(Configuration.Core.TcpServerUrl, out ushort shortPort))
{
port = shortPort;
}
else
{
var uri = new Uri(Configuration.Core.TcpServerUrl);
host = uri.DnsSafeHost;
if (uri.IsDefaultPort == false)
{
port = uri.Port;
}
}
}
bool successfullyBoundToAtLeastOne = false;
var errors = new List <Exception>();
foreach (var ipAddress in GetListenIpAddresses(host))
{
if (Logger.IsInfoEnabled)
{
Logger.Info($"RavenDB TCP is configured to use {Configuration.Core.TcpServerUrl} and bind to {ipAddress} at {port}");
}
var listener = new TcpListener(ipAddress, port);
status.Listeners.Add(listener);
listener.Server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
try
{
listener.Start();
}
catch (Exception ex)
{
var msg = "Unable to start tcp listener on " + ipAddress + " on port " + port;
errors.Add(new IOException(msg, ex));
if (Logger.IsOperationsEnabled)
{
Logger.Operations(msg, ex);
}
continue;
}
successfullyBoundToAtLeastOne = true;
var listenerLocalEndpoint = (IPEndPoint)listener.LocalEndpoint;
status.Port = listenerLocalEndpoint.Port;
// when binding to multiple interfaces and the port is 0, use
// the same port across all interfaces
port = listenerLocalEndpoint.Port;
for (int i = 0; i < 4; i++)
{
ListenToNewTcpConnection(listener);
}
}
if (successfullyBoundToAtLeastOne == false)
{
if (errors.Count == 1)
{
throw errors[0];
}
throw new AggregateException(errors);
}
return(status);
}
catch (Exception e)
{
if (_tcpLogger.IsOperationsEnabled)
{
_tcpLogger.Operations($"Failed to start tcp server on tcp://{host}:{port}, tcp listening disabled", e);
}
foreach (var tcpListener in status.Listeners)
{
tcpListener.Stop();
}
throw;
}
}
