git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@98 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-peo/src/core/runner.cpp

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+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "runner.cpp"
+
+// (c) OPAC Team, LIFL, August 2005
+
+/* 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: paradiseo-help@lists.gforge.inria.fr
+*/
+
+#include <vector>
+
+#include "runner.h"
+#include "reac_thread.h"
+#include "peo_debug.h"
+#include "messaging.h"
+
+static unsigned num_act = 0; /* Number of active runners */
+
+static std :: vector <pthread_t *> ll_threads; /* Low-level runner threads */ 
+
+static std :: vector <Runner *> the_runners;
+
+static unsigned num_runners = 0;
+
+Runner :: Runner () {
+
+  id = ++ num_runners;
+  the_runners.push_back (this);
+  sem_init (& sem_start, 0, 0);
+  num_act ++;  
+}
+
+extern int getNodeRank ();
+
+extern int getNumberOfNodes ();
+
+void unpackTerminationOfRunner () {
+  
+  RUNNER_ID id;
+  unpack (id);    
+  num_act --;
+  printDebugMessage ("I'm noticed of the termination of a runner");
+  if (! num_act) {
+    printDebugMessage ("all the runners have terminated. Now stopping the reactive threads.");
+    stopReactiveThreads ();
+  }
+}
+
+bool atLeastOneActiveRunner () {
+
+  return num_act;
+}
+
+RUNNER_ID Runner :: getID () {
+
+  return id;
+}
+
+void Runner :: start () {
+
+  setActive ();
+  sem_post (& sem_start);
+  run ();
+  terminate ();
+}
+
+void Runner :: notifySendingTermination () {
+
+  /*
+  char b [1000];
+  sprintf (b, "Il reste encore %d !!!!!!!!!!!!", n);
+  printDebugMessage (b);
+  */
+  printDebugMessage ("je suis informe que tout le monde a recu ma terminaison");
+  setPassive ();
+  
+}
+
+void Runner :: waitStarting () {
+
+  sem_wait (& sem_start);
+}
+
+Runner * getRunner (RUNNER_ID __key) {
+
+  return dynamic_cast <Runner *> (getCommunicable (__key));
+}
+
+void startRunners () {
+  
+  /* Runners */
+  for (unsigned i = 0; i < the_runners.size (); i ++)
+    if (the_runners [i] -> isLocal ()) {
+      addThread (the_runners [i], ll_threads);
+      the_runners [i] -> waitStarting ();
+    }
+  printDebugMessage ("launched the parallel runners");
+}
+
+
+void joinRunners () {
+
+
+  joinThreads (ll_threads);
+}