Tons of minor fixes

MistoxServer/Client/TCPClient.cs

@@ -9,16 +9,17 @@ using System.Threading.Tasks;
 namespace Mistox.Client {
     public class mTCPClient : IDisposable {
 
-        TcpClient _connection;
-        MistoxClient _parent;
+        private readonly TcpClient _connection;
+        private readonly MistoxClient _parent;
+        private readonly SemaphoreSlim _sendLock = new SemaphoreSlim(1, 1);
 
         public mTCPClient( MistoxClient parent, IPEndPoint ServerAddress ) {
             _connection = new TcpClient( AddressFamily.InterNetwork );
             _connection.NoDelay = true;
             _connection.Connect( ServerAddress );
             _parent.InvokeOnServerConnected();
-            Thread RThread = new Thread(async () => { await ReceiveThread(); });
-            RThread.Start();
+            // Start the receive thread
+            Task.Run(ReceiveThread);
         }
 
         async Task ReceiveThread() {
@@ -32,19 +33,21 @@ namespace Mistox.Client {
                         await ns.ReadExactlyAsync(headerBuffer, 0, 3);
 
                         // Parse the header
-                        byte packetbyte = headerBuffer[0];
-                        ushort dataLength = (ushort)((headerBuffer[1] << 8) | headerBuffer[2]);
+                        DataPacketHeader Header = new DataPacketHeader {
+                          Type = headerBuffer[0],
+                          DataLength = (ushort)((headerBuffer[1] << 8) | headerBuffer[2])
+                        };
 
                         // Make sure the data looks valid
-                        if (dataLength > payloadBuffer.Length) {
+                        if (Header.DataLength > payloadBuffer.Length) {
                             throw new Exception("Incoming TCP payload is too large for the pre-allocated buffer.");
                         }
 
                         // Read off the data
-                        await ns.ReadExactlyAsync(payloadBuffer, 0, dataLength);
+                        await ns.ReadExactlyAsync(payloadBuffer, 0, Header.DataLength);
 
                         // Create the dataobject
-                        dynamic dataobject = DataPacket.Deserialize( packetbyte, dataLength, payloadBuffer.AsMemory(DataPacket.HeaderLength, dataLength) );
+                        dynamic dataobject = DataPacket.Deserialize( Header, payloadBuffer.AsMemory(DataPacket.HeaderLength, Header.DataLength) );
 
                         // Return the object
                         _parent.InvokeOnReceived(dataobject);
@@ -60,13 +63,18 @@ namespace Mistox.Client {
 
         public async Task Send<T>(T packet) {
             byte[] data = DataPacket.Serialize( packet );
-            await _connection.GetStream().WriteAsync( data, 0, data.Length );
+            await _sendLock.WaitAsync();
+            try {
+                await _connection.GetStream().WriteAsync( data, 0, data.Length );
+            } finally {
+                _sendLock.Release();
+            }
         }
 
         public void Dispose() {
             _parent.InvokeOnServerDisconnected();
             _connection.Close();
-            _connection = null;
+            _connection.Dispose();
         }
     }
 }