Poco C++ 1.4.3p1 的 DatagramSocket ReceiveBytes() 永远不会返回。我是否滥用了该功能？

我刚刚开始使用Poco库。我在让两台计算机使用 Poco 的数据报套接字对象进行通信时遇到问题。具体来说，receiveBytes 函数似乎没有返回(尽管运行 Wireshark 并看到我发送的 UDP 数据包到达目标机器(。我假设我省略了一些简单的东西，这都是由于我的愚蠢错误。我已经使用Visual Studio Express 2010在Windows 7上编译了Poco 1.4.3p1。下面是显示我如何尝试使用 Poco 的代码片段。任何建议将不胜感激。

发送

#include "PocoNetDatagramSocket.h"
#include "Serializer.h" //A library used for serializing data
int main()
{
   Poco::Net::SocketAddress remoteAddr("192.168.1.140", 5678); //The IP address of the remote (receiving) machine
   Poco::Net::DatagramSocket mSock; //We make our socket (its not connected currently)
   mSock.connect(remoteAddr); //Sends/Receives are restricted to the inputted IPAddress and port
   unsigned char float_bytes[4];
   FloatToBin(1234.5678, float_bytes); //Serializing the float and storing it in float_bytes
   mSock.sendBytes((void*)float_bytes, 4); //Bytes AWAY!
   return 0;
}

接收(我遇到问题的地方(

#include "PocoNetDatagramSocket.h"
#include "PocoNetSocketAddress.h"
#include "Serializer.h"
#include <iostream>
int main()
{
   Poco::Net::SocketAddress remoteAddr("192.168.1.116", 5678); //The IP address of the remote (sending) machine
   Poco::Net::DatagramSocket mSock; //We make our socket (its not connected currently)
   mSock.connect(remoteAddr); //Sends/Receives are restricted to the inputted IPAddress and port
   //Now lets try to get some datas
   std::cout << "Waiting for float" << std::endl;
   unsigned char float_bytes[4];
   mSock.receiveBytes((void*)float_bytes, 4); //The code is stuck here waiting for a packet. It never returns...
   //Finally, lets convert it to a float and print to the screen
   float net_float;
   BinToFloat(float_bytes, &net_float); //Converting the binary data to a float and storing it in net_float
   std::cout << net_float << std::endl;
   system("PAUSE");
   return 0;
}

谢谢你的时间。