git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@130 331e1502-861f-0410-8da2-ba01fb791d7f

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

@@ -0,0 +1,96 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "thread.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 <map>
+
+#include "thread.h"
+
+static std :: vector <Thread *> threads;
+
+unsigned num_act = 0;
+
+Thread :: Thread () {
+	
+  threads.push_back (this);
+  act = false;
+}
+
+Thread :: ~ Thread () {
+
+  /* Nothing ! */
+}
+
+extern int getNodeRank ();
+
+void Thread :: setActive () {
+
+  if (! act ) {
+
+    act = true;
+    num_act ++;
+    //    if (getNodeRank () == 1)      
+    //   printf ("On passe a %d\n", num_act);
+  }
+}
+
+void Thread :: setPassive () {
+
+  if (act) {
+
+   act = false;
+    num_act --;
+    //    if (getNodeRank () == 1)      
+    //  printf ("On passe a %d\n", num_act);
+
+  } 
+}
+
+bool atLeastOneActiveThread () {
+
+  return num_act;
+}
+
+unsigned numberOfActiveThreads () {
+
+  return num_act;
+}
+
+static void * launch (void * __arg) {
+
+  Thread * thr = (Thread *) __arg;  
+  thr -> start ();
+  return 0;
+}
+
+void addThread (Thread * __hl_thread, std :: vector <pthread_t *> & __ll_threads) {
+
+  pthread_t * ll_thr = new pthread_t;
+  __ll_threads.push_back (ll_thr);
+  pthread_create (ll_thr, 0, launch, __hl_thread); 
+}
+
+void joinThreads (std :: vector <pthread_t *> & __threads) {
+
+  for (unsigned i = 0; i < __threads.size (); i ++)    
+    pthread_join (* __threads [i], 0);  
+}