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# recv.cpp

    00001 /*
    00002 * <recv.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 #include "comm.h"
    00038 #include "tags.h"
    00039 #include "worker.h"
    00040 #include "scheduler.h"
    00041 #include "mess.h"
    00042 #include "node.h"
    00043 #include "../../core/runner.h"
    00044 #include "../../core/cooperative.h"
    00045 #include "../../core/peo_debug.h"
    00046
    00047 void receiveMessages () {
    00048
    00049   cleanBuffers ();
    00050
    00051   do {
    00052
    00053     if (! atLeastOneActiveThread ()) {
    00054       //      printDebugMessage ("debut wait");
    00055       waitMessage ();
    00056       //printDebugMessage ("fin wait");
    00057     }
    00058
    00059     int src, tag;
    00060
    00061     while (probeMessage (src, tag)) {
    00062
    00063       receiveMessage (src, tag);
    00064       initMessage ();
    00065       /*
    00066       char b [1000];
    00067       sprintf (b, "traitement recv %d\n", tag);
    00068       printDebugMessage (b);
    00069       */
    00070
    00071       switch (tag) {
    00072
    00073       case RUNNER_STOP_TAG:
    00074         unpackTerminationOfRunner ();
    00075         wakeUpCommunicator ();
    00076         break;
    00077
    00078       case COOP_TAG:
    00079         //      printDebugMessage ("reception de message de cooperation");
    00080         COOP_ID coop_id;
    00081         unpack (coop_id);
    00082         getCooperative (coop_id) -> unpack ();
    00083         break;
    00084
    00085       case SCHED_REQUEST_TAG:
    00086         unpackResourceRequest ();
    00087         break;
    00088
    00089       case SCHED_RESULT_TAG:
    00090         {
    00091           /* Unpacking the resource */
    00092           SERVICE_ID serv_id;
    00093           unpack (serv_id);
    00094           Service * serv = getService (serv_id);
    00095           int dest;
    00096           unpack (dest);
    00097           WORKER_ID worker_id;
    00098           unpack (worker_id);
    00099
    00100           /* Going back ... */
    00101           initMessage ();
    00102           pack (worker_id);
    00103           pack (serv_id);
    00104           serv -> packData ();
    00105           serv -> notifySendingData ();
    00106           sendMessage (dest, TASK_DATA_TAG);
    00107           break;
    00108         }
    00109
    00110       case TASK_DATA_TAG:
    00111       {
    00112         WORKER_ID worker_id;
    00113         unpack (worker_id);
    00114         Worker * worker = getWorker (worker_id);
    00115         worker -> setSource (src);
    00116         worker -> unpackData ();
    00117         worker -> wakeUp ();
    00118         break;
    00119       }
    00120
    00121       case TASK_RESULT_TAG:
    00122         {
    00123           SERVICE_ID serv_id;
    00124           unpack (serv_id);
    00125           Service * serv = getService (serv_id);
    00126           serv -> unpackResult ();
    00127           break;
    00128         }
    00129
    00130       case TASK_DONE_TAG:
    00131         unpackTaskDone ();
    00132         break;
    00133
    00134       default:
    00135         ;
    00136       };
    00137     }
    00138
    00139   } while (! atLeastOneActiveThread () && atLeastOneActiveRunner () /*&& ! allResourcesFree ()*/);
    00140 }