private void GenerateUniqueName(RemoteXTMF ourRemoteClient)
{
int uniqueID = Interlocked.Increment(ref this.UniqueID);
ourRemoteClient.UniqueID = String.Format("Client:{0}", uniqueID);
}
private bool ProcessMessage(bool done, RemoteXTMF ourRemoteClient, BinaryWriter writer, BinaryFormatter converter, Message message)
{
if (message != null)
{
//If we have a message to process, process it
switch (message.Type)
{
case MessageType.Quit:
{
done = true;
}
break;
case MessageType.RequestProgress:
{
writer.Write((Int32)MessageType.RequestProgress);
writer.Flush();
}
break;
case MessageType.RequestResource:
{
var name = message.Data as string;
object data;
writer.Write((Int32)MessageType.ReturningResource);
writer.Write(name);
if (this.Resources.TryGetValue(name, out data))
{
writer.Write(true);
converter.Serialize(writer.BaseStream, data);
}
else
{
writer.Write(false);
}
writer.Flush();
}
break;
case MessageType.PostComplete:
{
this.CompletedTask(ourRemoteClient, 0, String.Empty);
}
break;
case MessageType.PostCancel:
{
writer.Write((Int32)MessageType.PostCancel);
writer.Flush();
}
break;
case MessageType.PostProgess:
{
var progress = (float)message.Data;
ourRemoteClient.Progress = progress;
// we need to lock here since other clients could also
// be trying to update the host with their progress
lock (this)
{
try
{
if (this.ProgressUpdated != null)
{
this.ProgressUpdated(ourRemoteClient, progress);
}
}
catch
{
}
}
}
break;
case MessageType.PostResource:
{
var data = (ResourcePost)message.Data;
this.Resources[data.Name] = data.Data;
}
break;
case MessageType.SendModelSystem:
{
writer.Write((Int32)MessageType.SendModelSystem);
var mss = message.Data as IModelSystemStructure;
try
{
byte[] data = null;
using (MemoryStream memStream = new MemoryStream())
{
mss.Save(memStream);
memStream.Position = 0;
data = memStream.ToArray();
}
writer.Write(data.Length);
writer.Write(data, 0, data.Length);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
writer.Flush();
}
break;
case MessageType.SendCustomMessage:
{
var msg = message.Data as SendCustomMessageMessage;
int msgNumber = msg.CustomMessageNumber;
int length = 0;
var failed = false;
byte[] buffer = null;
Action <object, IRemoteXTMF, Stream> customConverter;
if (this.CustomSenders.TryGetValue(msgNumber, out customConverter))
{
using (MemoryStream mem = new MemoryStream(0x100))
{
try
{
customConverter(msg.Data, ourRemoteClient, mem);
mem.Position = 0;
buffer = mem.ToArray();
length = buffer.Length;
}
catch
{
failed = true;
}
}
}
writer.Write((int)MessageType.SendCustomMessage);
writer.Write((int)msg.CustomMessageNumber);
writer.Write((Int32)length);
if (!failed)
{
writer.Write(buffer, 0, length);
buffer = null;
}
}
break;
case MessageType.ReceiveCustomMessage:
{
var msg = message.Data as ReceiveCustomMessageMessage;
var customNumber = msg.CustomMessageNumber;
Func <Stream, IRemoteXTMF, object> customConverter;
if (this.CustomReceivers.TryGetValue(customNumber, out customConverter))
{
using (var stream = msg.Stream)
{
try
{
object output = customConverter(stream, ourRemoteClient);
List <Action <object, IRemoteXTMF> > handlers;
if (this.CustomHandlers.TryGetValue(msg.CustomMessageNumber, out handlers))
{
foreach (var handler in handlers)
{
try
{
handler(output, ourRemoteClient);
}
catch
{
}
}
}
}
catch
{
}
}
}
}
break;
default:
{
done = true;
}
break;
}
}
return(done);
}
private void ClientMain(object clientObject)
{
var client = clientObject as TcpClient;
if (client == null)
{
return;
}
bool done = false;
RemoteXTMF ourRemoteClient = new RemoteXTMF();
try
{
// Step 1) Accept the Client
var clientStream = client.GetStream();
GenerateUniqueName(ourRemoteClient);
this.AvailableClients.Add(ourRemoteClient);
lock (this)
{
try
{
this.ConnectedClients.Add(ourRemoteClient);
if (this.NewClientConnected != null)
{
this.NewClientConnected(ourRemoteClient);
}
}
catch
{
}
}
// Start up the thread to process the messages coming from the remote xtmf
new Thread(delegate()
{
while (!done && !this.Exit)
{
// cycle every 500ms ~ 1/2 second
try
{
clientStream.ReadTimeout = Timeout.Infinite;
BinaryReader reader = new BinaryReader(clientStream);
BinaryFormatter readingConverter = new BinaryFormatter();
while (!done && !this.Exit)
{
var messageType = (MessageType)reader.ReadInt32();
var clientMessage = new Message(messageType);
switch (messageType)
{
case MessageType.Quit:
{
done = true;
return;
}
case MessageType.RequestResource:
{
var name = reader.ReadString();
clientMessage.Data = name;
ourRemoteClient.Messages.Add(clientMessage);
}
break;
case MessageType.PostProgess:
{
var progress = reader.ReadSingle();
clientMessage.Data = progress;
ourRemoteClient.Messages.Add(clientMessage);
}
break;
case MessageType.PostComplete:
{
ourRemoteClient.Messages.Add(clientMessage);
}
break;
case MessageType.PostResource:
{
var data = readingConverter.Deserialize(reader.BaseStream);
clientMessage.Data = data;
ourRemoteClient.Messages.Add(clientMessage);
}
break;
case MessageType.SendCustomMessage:
{
// Time to recieve a new custom message
var number = reader.ReadInt32();
var length = reader.ReadInt32();
var buff = new byte[length];
MemoryStream buffer = new MemoryStream(buff);
int soFar = 0;
while (soFar < length)
{
soFar += reader.Read(buff, soFar, length - soFar);
}
ourRemoteClient.Messages.Add(new Message(MessageType.ReceiveCustomMessage,
new ReceiveCustomMessageMessage()
{
CustomMessageNumber = number,
Stream = buffer
}));
}
break;
default:
{
done = true;
client.Close();
}
break;
}
}
}
catch
{
// we will get here if the connection is closed
try
{
if (client.Connected)
{
continue;
}
}
catch (ObjectDisposedException)
{
done = true;
}
}
done = true;
}
// don't close the reader/writer since this will also close the client stream
}).Start();
BinaryWriter writer = new BinaryWriter(clientStream);
BinaryFormatter converter = new BinaryFormatter();
clientStream.WriteTimeout = 10000;
while (!done && !this.Exit)
{
Message message = ourRemoteClient.Messages.GetMessageOrTimeout(200);
if (message == null)
{
message = new Message(MessageType.RequestProgress);
}
var nowDone = ProcessMessage(done, ourRemoteClient, writer, converter, message);
Thread.MemoryBarrier();
done = done | nowDone;
}
done = true;
}
catch
{
}
finally
{
done = true;
lock (this)
{
try
{
client.Close();
}
catch
{
}
try
{
lock ( ourRemoteClient )
{
ourRemoteClient.Connected = false;
ourRemoteClient.Messages.Dispose();
ourRemoteClient.Messages = null;
}
lock (this)
{
this.ConnectedClients.Remove(ourRemoteClient);
if (this.ClientDisconnected != null)
{
this.ClientDisconnected(ourRemoteClient);
}
}
}
catch
{
}
}
}
}
