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

trunk/paradiseo-peo/src/core/communicable.h

@@ -0,0 +1,62 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "communicable.h"
+
+// (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
+*/
+
+#ifndef __communicable_h
+#define __communicable_h
+
+#include <semaphore.h>
+
+typedef unsigned COMM_ID;
+
+class Communicable {
+
+public :
+
+  Communicable ();
+  
+  virtual ~ Communicable ();
+
+  COMM_ID getKey ();  
+
+  void lock (); /* It suspends the current process if the semaphore is locked */
+  void unlock (); /* It unlocks the shared semaphore */
+
+  void stop (); /* It suspends the current process */
+  void resume (); /* It resumes ___________ */
+  
+protected :
+
+  COMM_ID key;
+
+  sem_t sem_lock;
+  
+  sem_t sem_stop;
+
+  static unsigned num_comm;
+};
+
+extern Communicable * getCommunicable (COMM_ID __key); 
+
+//extern COMM_ID getKey (const Communicable * __comm);
+
+#endif