# ParadisEO-PEOMovingObjects: comm.cpp Source File

# comm.cpp

    00001 /*
    00002 * <comm.cpp>
    00003 * Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
    00004 * (C) OPAC Team, LIFL, 2002-2007
    00005 *
    00006 * Sebastien Cahon, Alexandru-Adrian Tantar
    00007 *
    00008 * This software is governed by the CeCILL license under French law and
    00009 * abiding by the rules of distribution of free software.  You can  use,
    00010 * modify and/ or redistribute the software under the terms of the CeCILL
    00011 * license as circulated by CEA, CNRS and INRIA at the following URL
    00012 * "http://www.cecill.info".
    00013 *
    00014 * As a counterpart to the access to the source code and  rights to copy,
    00015 * modify and redistribute granted by the license, users are provided only
    00016 * with a limited warranty  and the software's author,  the holder of the
    00017 * economic rights,  and the successive licensors  have only  limited liability.
    00018 *
    00019 * In this respect, the user's attention is drawn to the risks associated
    00020 * with loading,  using,  modifying and/or developing or reproducing the
    00021 * software by the user in light of its specific status of free software,
    00022 * that may mean  that it is complicated to manipulate,  and  that  also
    00023 * therefore means  that it is reserved for developers  and  experienced
    00024 * professionals having in-depth computer knowledge. Users are therefore
    00025 * encouraged to load and test the software's suitability as regards their
    00026 * requirements in conditions enabling the security of their systems and/or
    00027 * data to be ensured and,  more generally, to use and operate it in the
    00028 * same conditions as regards security.
    00029 * The fact that you are presently reading this means that you have had
    00030 * knowledge of the CeCILL license and that you accept its terms.
    00031 *
    00032 * ParadisEO WebSite : http://paradiseo.gforge.inria.fr
    00033 * Contact: paradiseo-help@lists.gforge.inria.fr
    00034 *
    00035 */
    00036
    00037
    00038 #include <mpi.h>
    00039
    00040 #include "comm.h"
    00041 #include "mess.h"
    00042 #include "node.h"
    00043 #include "param.h"
    00044 #include "../../core/peo_debug.h"
    00045 #include "../../core/runner.h"
    00046 #include "send.h"
    00047 #include "recv.h"
    00048 #include "scheduler.h"
    00049
    00050 static sem_t sem_comm_init;
    00051
    00052 static Communicator * the_thread;
    00053
    00054 Communicator :: Communicator (int * __argc, char * * * __argv) {
    00055
    00056   the_thread = this;
    00057   initNode  (__argc, __argv);
    00058   loadRMCParameters (* __argc, * __argv);
    00059   sem_post (& sem_comm_init);
    00060 }
    00061
    00062 void Communicator :: start () {
    00063
    00064   while (true) {
    00065
    00066     /* Zzz Zzz Zzz :-))) */
    00067     sleep ();
    00068     sendMessages ();
    00069
    00070     if (! atLeastOneActiveRunner ())
    00071       break;
    00072     receiveMessages ();
    00073   }
    00074   waitBuffers ();
    00075   printDebugMessage ("finalizing");
    00076   MPI_Finalize ();
    00077 }
    00078
    00079 void initCommunication () {
    00080
    00081   sem_init (& sem_comm_init, 0, 0);
    00082 }
    00083
    00084 void waitNodeInitialization () {
    00085
    00086   sem_wait (& sem_comm_init);
    00087 }
    00088
    00089 void wakeUpCommunicator () {
    00090
    00091   the_thread -> wakeUp ();
    00092 }
    00093
    00094
    00095