00001 /* 00002 * <thread.h> 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 #ifndef THREAD_H_ 00038 #define THREAD_H_ 00039 00040 #include <vector> 00041 00042 /* A high-level thread */ 00043 00044 class Thread { 00045 00046 public: 00047 00048 /* Ctor */ 00049 Thread (); 00050 00051 /* Dtor */ 00052 virtual ~ Thread (); 00053 00054 /* Go ! */ 00055 virtual void start () = 0; 00056 00057 void setActive ();/* It means the current process is going to send messages soon */ 00058 void setPassive ();/* The current process is not going to perform send operations 00059 (but it may receive messages) */ 00060 00061 private : 00062 00063 bool act; 00064 }; 00065 00066 extern void addThread (Thread * __hl_thread, std :: vector <pthread_t *> & __ll_threads); 00067 00068 extern void joinThreads (std :: vector <pthread_t *> & __ll_threads); 00069 00070 extern bool atLeastOneActiveThread (); /* It returns 'true' iff at least one process is going 00071 to send messages */ 00072 00073 extern unsigned numberOfActiveThreads (); 00074 00075 00076 #endif /*THREAD_H_*/