// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-

// "eoEOSendMessFrom.h"

// (c) OPAC Team, LIFL, 2002

/* This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
   
   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   
   Contact: cahon@lifl.fr
*/

#ifndef eoEOSendMessFrom_h
#define eoEOSendMessFrom_h

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <mpi.h>
#include <iostream>
#include <string>
#ifdef HAVE_SSTREAM
#include <sstream>
#else
#include <strstream.h>
#endif

#include <paradisEO/comm/messages/eoMessFrom.h>



/**
   A message embeding a set of immigrants ...
*/
template <class EOT> class eoEOSendMessFrom : public eoMessFrom <EOT>
{
public:
  
    /**
       Constructor
    */
    eoEOSendMessFrom (eoLocalListener <EOT> & _loc_listen)
        : eoMessFrom <EOT> (_loc_listen) {
        MPI :: Status stat ;
        comm.Probe (loc_listen.number (), 0, stat) ;
        int len = stat.Get_count (MPI :: CHAR) ;
        char buff [len] ;
        comm.Recv(buff, len, MPI::CHAR, loc_listen.number (), 0) ;
#ifdef HAVE_SSTREAM
        std::istringstream f(buff);
#else
        istrstream f(buff);
#endif
        _pop.readFrom(f);
    }


  
    void operator() () {
        loc_listen.push (_pop) ;
        //    std::cout << "Reception de " << pop.size () << "individus " << std::endl ;
    }


protected:

    eoPop <EOT> _pop ; // New immigrants !
};

#endif
