00001 /* 00002 * <communicable.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 __communicable_h 00038 #define __communicable_h 00039 00040 #include <semaphore.h> 00041 00042 typedef unsigned COMM_ID; 00043 00044 class Communicable { 00045 00046 public : 00047 00048 Communicable (); 00049 00050 virtual ~ Communicable (); 00051 00052 COMM_ID getKey (); 00053 00054 void lock (); /* It suspends the current process if the semaphore is locked */ 00055 void unlock (); /* It unlocks the shared semaphore */ 00056 00057 void stop (); /* It suspends the current process */ 00058 void resume (); /* It resumes ___________ */ 00059 00060 protected : 00061 00062 COMM_ID key; 00063 00064 sem_t sem_lock; 00065 00066 sem_t sem_stop; 00067 00068 static unsigned num_comm; 00069 }; 00070 00071 extern Communicable * getCommunicable (COMM_ID __key); 00072 00073 //extern COMM_ID getKey (const Communicable * __comm); 00074 00075 #endif