internal void RaiseMessageReceived(InProcSocket socket, object message)
{
if (MessageReceived != null)
{
MessageReceived(this, new MessageReceivedArgs(socket, message));
}
}
internal void AddClientChannel(InProcSocket newClient)
{
if (ClientConnected != null)
{
ClientConnected(this, newClient);
}
ClientChannels.Add(newClient);
newClient.ParentServer = this;
}
internal void RemoveClientChannel(InProcSocket exisitingClient)
{
if (ClientDisconnected != null)
{
ClientDisconnected(this, exisitingClient);
}
exisitingClient.ParentServer = null;
if (!ClientChannels.Remove(exisitingClient))
{
throw new Exception("Failed to remove socket from server client list: " + exisitingClient.ToString());
}
}
public bool StartListening(string address)
{
Address = address;
var listeningChannel = new InProcSocket(Network, ChannelType.Listening)
{
LocalAddress = address
};
listeningChannel.ParentServer = this;
Network.RegisterListeningEndpoint(address, listeningChannel);
ListeningChannel = listeningChannel;
return(true);
}
internal void RegisterListeningEndpoint(string addres, InProcSocket channel)
{
if (channel.Type != ChannelType.Listening)
{
throw new Exception("Only listening socket can be registered");
}
InProcSocket existingServer = null;
if (ListeningSockets.TryGetValue(addres, out existingServer))
{
throw new Exception(string.Format("Address {0} already in use"));
}
ListeningSockets.Add(addres, channel);
}
internal void RequestClientConnectioTo(InProcSocket clientSocket, string destinationAddress)
{
if (clientSocket.Type != ChannelType.Client)
{
throw new Exception("Server endpoint cannot establish connections");
}
// set client socket state to connectting to destination address
clientSocket.RemoteAddress = destinationAddress;
clientSocket.ChangeStateTo(ConnectionState.Connecting);
// add socket to connecting socket dictionary
Network.ConnectingSockets.Add(SocketId.FromSocket(clientSocket), clientSocket);
Network.TaskScheduler.SchedluleTask(() =>
{
// remove client socket from connecting socket dictionary
// if that operation fails, that means connect operation was cancelled by client
if (!Network.ConnectingSockets.Remove(SocketId.FromSocket(clientSocket)))
{
return;
}
// Find server by listening channel
InProcSocket listeningChannel = null;
if (!Network.ListeningSockets.TryGetValue(clientSocket.RemoteAddress, out listeningChannel))
{
// if listening socket not found, change client state to connection failed
clientSocket.ChangeStateTo(ConnectionState.ConnectionFailed);
return;
}
// Success finding listening socket
Network.EstablishedSockets.Add(SocketId.FromSocket(clientSocket), clientSocket);
// Create server client channel
InProcSocket serverSideChannel = new InProcSocket(Network, ChannelType.Server);
serverSideChannel.RemoteAddress = clientSocket.LocalAddress;
serverSideChannel.LocalAddress = listeningChannel.LocalAddress;
serverSideChannel.ChangeStateTo(ConnectionState.Established);
Network.EstablishedSockets.Add(SocketId.FromSocket(serverSideChannel), serverSideChannel);
clientSocket.ChangeStateTo(ConnectionState.Established);
listeningChannel.ParentServer.AddClientChannel(serverSideChannel);
}, TimeSpan.FromMilliseconds(Network.ConnectionEstablishLatency));
}
/// <summary>
/// Called by socket Close functiion
/// </summary>
/// <param name="closingChannel"></param>
internal void SocketClosingConnection(InProcSocket closingChannel)
{
Network.ConnectingSockets.Remove(SocketId.FromSocket(closingChannel));
if (closingChannel.State == ConnectionState.Closed)
{
throw new Exception("Only connected socket can be closed");
}
else if (closingChannel.State != ConnectionState.Established)
{
closingChannel.ChangeStateTo(ConnectionState.Closed);
}
else
{
closingChannel.ChangeStateTo(ConnectionState.Closing);
if (closingChannel.ParentServer != null)
{
closingChannel.ParentServer.RemoveClientChannel(closingChannel);
}
Network.EstablishedSockets.Remove(SocketId.FromSocket(closingChannel));
Network.TaskScheduler.SchedluleTask(() =>
{
// find socket associated with closing one
InProcSocket remoteChannel = null;
if (!Network.EstablishedSockets.TryGetValue(SocketId.RemoteSocketId(closingChannel), out remoteChannel))
{
return;
}
closingChannel.ChangeStateTo(ConnectionState.Closed);
remoteChannel.ChangeStateTo(ConnectionState.Closed);
// if remote socket belongs to server
if (remoteChannel.ParentServer != null)
{
remoteChannel.ParentServer.RemoveClientChannel(remoteChannel);
}
Network.EstablishedSockets.Remove(SocketId.FromSocket(remoteChannel));
}, TimeSpan.FromMilliseconds(Network.ConnectionCloseLatency));
}
}
internal bool SocketSendMessage(InProcSocket socket, object message)
{
if (socket.State != ConnectionState.Established)
{
throw new Exception("Only connected sockets can send messages");
}
InProcSocket destinationSocket = null;
if (!Network.EstablishedSockets.TryGetValue(SocketId.RemoteSocketId(socket), out destinationSocket))
{
throw new Exception("Failed to send message, destination socket not found");
}
Network.TaskScheduler.SchedluleTask(() =>
{
destinationSocket.RaiseMessageReceived(message);
}, TimeSpan.FromMilliseconds(Network.GetConnectionDelay(socket, destinationSocket)));
return(true);
}
/// <summary>
/// Get id of associated remote socket [remote_address, local_address]
/// </summary>
/// <param name="socket"></param>
/// <returns></returns>
public static SocketId RemoteSocketId(InProcSocket socket)
{
return(new SocketId(socket.RemoteAddress, socket.LocalAddress));
}
internal int GetConnectionDelay(InProcSocket source, InProcSocket destination)
{
return(ConnectionDefaultLatency);
}
