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

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

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+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "comm.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 <map>
+#include <cassert>
+
+#include "communicable.h"
+
+static std :: vector <Communicable *> key_to_comm (1); /* Vector of registered cooperators */
+
+static std :: map <const Communicable *, unsigned> comm_to_key; /* Map of registered cooperators */
+
+unsigned Communicable :: num_comm = 0;
+
+Communicable :: Communicable () {
+
+  comm_to_key [this] = key = ++ num_comm;
+  key_to_comm.push_back (this);
+  sem_init (& sem_lock, 0, 1);
+  sem_init (& sem_stop, 0, 0);
+}
+
+Communicable :: ~ Communicable () {
+
+}
+
+COMM_ID Communicable :: getKey () {
+
+  return key;
+}
+
+Communicable * getCommunicable (COMM_ID __key) {
+
+  assert (__key < key_to_comm.size ());
+  return key_to_comm [__key];  
+}
+
+COMM_ID getKey (const Communicable * __comm) {
+  
+  return comm_to_key [__comm];
+}
+
+void Communicable :: lock () {
+
+  sem_wait (& sem_lock);
+}
+
+void Communicable :: unlock () {
+
+  sem_post (& sem_lock);
+}
+
+void Communicable :: stop () {
+
+  sem_wait (& sem_stop);
+}
+
+void Communicable :: resume () {
+
+  sem_post (& sem_stop);
+}
+
+
+