/// <summary>
/// Initializes the Server to receive follower connections
/// </summary>
internal static void ServerInitialize()
{
if (!AutoFollow.Enabled)
{
return;
}
if (Service.ConnectionMode != ConnectionMode.Server)
{
return;
}
if (DateTime.UtcNow < DontAttemptServerModeUntil)
{
return;
}
if (DateTime.UtcNow.Subtract(LastFailTime).TotalSeconds < 5)
{
return;
}
ServerStartAttempts++;
try
{
var portIsTaken = true;
ServerUri = new Uri(ServerUri.AbsoluteUri.Replace(_basePort.ToString(), Settings.Network.ServerPort.ToString()));
_basePort = Settings.Network.ServerPort;
var serverPort = _basePort;
while (portIsTaken && AutoFollow.Enabled)
{
var ipgp = IPGlobalProperties.GetIPGlobalProperties();
var tcpListeners = ipgp.GetActiveTcpListeners();
if (tcpListeners.Any(listner => listner.Port == serverPort))
{
portIsTaken = false;
serverPort += 1;
}
else
{
portIsTaken = false;
}
}
Log.Info("Initializing Server Service @ {0} Attempt={1}", ServerUri.AbsoluteUri, ServerStartAttempts);
ServiceHost = new ServiceHost(typeof(Service), ServerUri);
ServiceHost.AddServiceEndpoint(typeof(IService), new BasicHttpBinding(), "Follow");
ServiceHost.Open();
ServerInitialized = true;
if (OnServerInitialized != null)
{
OnServerInitialized.Invoke();
}
}
catch (AddressAlreadyInUseException ex)
{
Log.Verbose("Address already in use. Attempt={0}", ServerStartAttempts);
Log.Debug(ex.ToString());
DontAttemptServerModeUntil = DateTime.UtcNow.Add(TimeSpan.FromMinutes(1));
LastFailTime = DateTime.UtcNow;
Server.ShutdownServer();
Client.ShutdownClient();
Service.ConnectionMode = ConnectionMode.Client;
}
catch (Exception ex)
{
Log.Verbose("Could not initialize service. Do you already have a leader started? Attempt={0}", ServerStartAttempts);
Log.Debug(ex.ToString());
LastFailTime = DateTime.UtcNow;
}
if (ServerStartAttempts > 5 && !IsValid)
{
Service.ConnectionMode = ConnectionMode.Client;
}
}
internal static void RunServerInitialized() => OnServerInitialized?.Invoke();