boost.asio, boost.serialization

#include <ctime>
#include <iostream>
#include <string>
#include <boost/asio.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
using boost::asio::ip::tcp;
using namespace boost::archive;
using namespace std;
class rpc_function
{
	public:
		virtual void load(text_iarchive& arr,const unsigned version)=0;
		virtual void save(text_oarchive& arr,const unsigned version)const=0;
		BOOST_SERIALIZATION_SPLIT_MEMBER();
		virtual void operator()()=0;
};
class hello_world_func:public rpc_function
{
	string res;
	public:
		void load(text_iarchive& arr,const unsigned version)
		{
		}
		void save(text_oarchive& arr,const unsigned version)const
		{
			arr << res;
		}
		void operator()()
		{
			res="Hello, World!\n";
		}
		
};
const size_t func_cnt=1;
rpc_function* funcs[func_cnt];
struct func_data
{
	unsigned func_id;
	template<class archive>
	void load(archive& arr,const unsigned version)
	{
		arr >> func_id;
		arr >> (*funcs[func_id]);
	}
	template<class archive>
	void save(archive& arr,const unsigned version)const
	{
//		arr  func_id;
		arr << (*funcs[func_id]);
	}
	BOOST_SERIALIZATION_SPLIT_MEMBER();
	void operator()()
	{
		(*funcs[func_id])();
	}
};


int main()
{
	funcs[0]=new hello_world_func();
  try
  {
    boost::asio::io_service io_service;

    tcp::endpoint endpoint(tcp::v4(), 31005);
    tcp::acceptor acceptor(io_service, endpoint);

    for (;;)
    {
      tcp::iostream stream;
      acceptor.accept(*stream.rdbuf());
	  func_data fd;
	  text_iarchive ar(stream);
	  ar>>fd;
	  fd();
	  text_oarchive ar2(stream);
	  ar2<<fd;
	  stream.close();
    }
  }
  catch (std::exception& e)
  {
    std::cerr << e.what() << std::endl;
  }

  return 0;
}

#include <iostream>
#include <string>
#include <boost/asio.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>

using boost::asio::ip::tcp;
using namespace boost::archive;
using namespace std;
class func_data
{
		unsigned int fdata;
		string res;
	public:
		func_data(unsigned int _fdata){fdata=_fdata;}
		template <typename Archive>
		void load(Archive& arr,const unsigned int version)
		{
			arr >> res;
		}
		template <typename Archive>
		void save(Archive& arr,const unsigned int version)const
		{
			arr << fdata;
		}
		void printRes(){cout<<res;}
		BOOST_SERIALIZATION_SPLIT_MEMBER();
};

int main(int argc, char* argv[])
{
  try
  {
    if (argc != 2)
    {
      std::cerr << "Usage: client2 <host>" << std::endl;
      return 1;
    }

    tcp::iostream stream(argv[1], "31005");
    /*std::string line;
    std::getline(s, line);
    std::cout << line << std::endl;*/
	func_data fd(0);
	{
		text_oarchive oar(stream);
		oar<<fd;
		text_iarchive iar(stream);
		iar>>fd;
	}
  }
  catch (std::exception& e)
  {
    std::cout << "Exception: " << e.what() << std::endl;
  }

  return 0;
}