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eo/src/paradisEO/eoPopAgent.h

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+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "eoPopAgent.h"
+
+// (c) OPAC Team, LIFL, 2002
+
+/* 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: cahon@lifl.fr
+*/
+
+#ifndef eoPopAgent_h
+#define eoPopAgent_h
+
+#include <eoPopAlgo.h>
+#include <paradisEO/comm/eoListener.h>
+#include <paradisEO/comm/messages/to/eoEOSendMessTo.h>
+
+#include <string>
+
+/**
+   A popAgent is waiting for any populations that are queued.
+   For each one, a processing is performed. 
+*/
+
+template <class EOT> class eoPopAgent {
+
+public :
+
+  /**
+     Constructor
+   */ 
+
+  eoPopAgent (string _label,
+	      eoListener <EOT> & _listen,
+	      eoPopAlgo <EOT> & _algo
+	      ) :
+    label (_label),
+    listen (_listen),
+    algo (_algo) {
+    
+  }
+  
+  // Waiting for eoPop reception and then ...
+
+  void operator () () {
+    
+    listen.publish (label) ; // To be known by everyone ...
+
+    while (true) {
+     
+      listen.wait () ; // While no neighbour sends any eoPop ...
+      
+      for (int i = 0 ; i < listen.size () ; i ++) {
+	
+	while (! listen [i].empty ()) {
+	  
+	  eoPop <EOT> & pop = listen [i].front () ;
+	  cout << "Agent [" << label << "] on " << listen.here ().host_name << " : Receiving " << pop.size () << " individuals ..." << endl ;
+	  algo (pop) ; 
+	  eoEOSendMessTo <EOT> mess (pop) ;
+	  mess (listen [i]) ; // Coming back ...
+	  listen [i].pop () ;
+	}
+      }
+    }
+  }
+  
+private :
+  
+  string label ; // string identifier
+  eoListener <EOT> & listen ; // EO's listener
+  eoPopAlgo <EOT> & algo ; // Local supplied algo
+	   
+} ;
+
+#endif