Ticket #3261: main.cpp

#include <iostream>
#include <boost/mpi.hpp>
#include <boost/mpi/packed_oarchive.hpp>
#include <boost/mpi/packed_iarchive.hpp>
#include <boost/serialization/string.hpp>
#include <boost/serialization/export.hpp>

namespace boost
{
   namespace mpi
   {
      template<> struct is_mpi_datatype<std::string>  : public mpl::true_ {};
   }
}

class Base
{
public:
   Base() {}

   virtual void print() = 0;

private:
   friend class boost::serialization::access;

   template<class Archive>
   void serialize(Archive & ar, const unsigned int version)
   {
   }
};

class Foo : public Base
{
public:
   Foo() {}
   Foo(const std::string& text) : _text(text) {}

   void print() { std::cout << _text << std::endl; }


private:
   friend class boost::serialization::access;

   template<class Archive>
   void serialize(Archive & ar, const unsigned int version)
   {
      ar & boost::serialization::base_object<Base>(*this);
      ar & _text;
   }

   std::string _text;
};

BOOST_CLASS_EXPORT(Foo);

int main(int argc, char * argv[])
{
   boost::mpi::environment env(argc, argv);
   boost::mpi::communicator world;

   if (world.rank() == 0)
   {
      Base * a = new Foo("Hello");
      world.send(1, 0, a);
      delete a;
   }
   else
   {
      Base * a;
      world.recv(0, 0, a);
      a->print();
      delete a;
   }

   return 0;
}