#include "MyMPI.hpp"
#include "P2PComm.hpp"
#include <iostream> 

using std::cout;
using std::endl;
using namespace MF;

int main(int argc, char* argv[])
{
  const MyMPI* mpi = MyMPI::instance();
  const int master = 0;
  const unsigned int count = 26 + 1;

  MPI::Datatype Alphabet = MPI::CHAR.Create_contiguous(count);
  Alphabet.Commit();

  if (mpi->rank() == master)  //master
  {
    char alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

    const int tag = 0;
    Transceiver<> transceiver;

    for (int dest=1; dest<mpi->size(); ++dest)
    {
      transceiver.send(&alphabet, 1, Alphabet, dest, tag);
    }
  }
  else
  {
    const int from  = master;
    const int tag  = 0;
    MPI::Status status;
    Transceiver<> transceiver;
    char toRecv[count];

    transceiver.recv(&toRecv, 1, Alphabet, from, tag, status);

    cout << *mpi->instance() << " received: " << toRecv << endl;
  }

  Alphabet.Free();
  return 0;
}