[英]XmlSerializer.Deserialize blocks over NetworkStream
我正在尝试通过网络流发送XML可序列化的对象。
我已经在UDP广播服务器上使用过此服务器,该服务器从本地网络接收UDP消息。 这是服务器端的一个片段:
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);
...
相反,这是客户端:
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);
}
它工作得很好。
但是现在我试图在TcpClient
套接字上获得相同的结果,但是直接使用XMLSerializer
实例:
在服务器端:
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);
}
在客户端:
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);
已发送数据(Available属性大于0),但是方法XmlSerialize.Deserialize
(应对Message类进行反序列化)会阻塞。
我想念什么?
当然,因为序列化程序继续读取NetworkStream
,并且在封装主要end元素时它不会结束。
为了获得想要的结果,必须使用MemoryStream
,当读取最后一个字节时,它会通知流的结尾。
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