XmlSerializer.Deserialize blocks over NetworkStream
- by Luca
I'm trying to sends XML serializable objects over a network stream.
I've already used this on an UDP broadcast server, where it receive UDP messages from the local network. Here a snippet of the server side:
while (mServiceStopFlag == false) {
if (mSocket.Available > 0) {
IPEndPoint ipEndPoint = new IPEndPoint(IPAddress.Any, DiscoveryPort); byte[] bData;
// Receive discovery message
bData = mSocket.Receive(ref ipEndPoint);
// Handle discovery message
HandleDiscoveryMessage(ipEndPoint.Address, bData);
...
Instead this is the client side:
IPEndPoint ipEndPoint = new IPEndPoint(IPAddress.Broadcast, DiscoveryPort);
MemoryStream mStream = new MemoryStream();
byte[] bData;
// Create broadcast UDP server
mSocket = new UdpClient();
mSocket.EnableBroadcast = true;
// Create datagram data
foreach (NetService s in ctx.Services)
XmlHelper.SerializeClass<NetService>(mStream, s);
bData = mStream.GetBuffer();
// Notify the services
while (mServiceStopFlag == false) {
mSocket.Send(bData, (int)mStream.Length, ipEndPoint);
Thread.Sleep(DefaultServiceLatency);
}
It works very fine.
But now i'me trying to get the same result, but on a TcpClient socket, but the using directly an XMLSerializer instance:
On server side:
TcpClient sSocket = k.Key;
ServiceContext sContext = k.Value;
Message msg = new Message();
while (sSocket.Connected == true) {
if (sSocket.Available > 0) {
StreamReader tr = new StreamReader(sSocket.GetStream());
msg = (Message)mXmlSerialize.Deserialize(tr);
// Handle message
msg = sContext.Handler(msg);
// Reply with another message
if (msg != null)
mXmlSerialize.Serialize(sSocket.GetStream(), msg);
} else
Thread.Sleep(40);
}
And on client side:
NetworkStream mSocketStream;
Message rMessage;
// Network stream
mSocketStream = mSocket.GetStream();
// Send the message
mXmlSerialize.Serialize(mSocketStream, msg);
// Receive the answer
rMessage = (Message)mXmlSerialize.Deserialize(mSocketStream);
return (rMessage);
The data is sent (Available property is greater then 0), but the method XmlSerialize.Deserialize (which should deserialize the Message class) blocks.
What am I missing?
