+ feature eoSIGContinue: Continuator can catch user signals + feature eoLogger: flexible logging system for eo

eo/src/eoSIGContinue.h

@@ -0,0 +1,90 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+ 
+//-----------------------------------------------------------------------------
+// eoSIGContinue.h
+// (c) EEAAX 1996 - GeNeura Team, 1998 - Maarten Keijzer 2000 
+/*
+    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: todos@geneura.ugr.es, http://geneura.ugr.es
+             Marc.Schoenauer@polytechnique.fr
+             mak@dhi.dk
+	     Johann Dréo <nojhan@gmail.com>
+	     Caner Candan <caner@candan.fr>
+*/
+//-----------------------------------------------------------------------------
+// the same thing can probably be done in MS environement, but I hoave no way
+// to test it so at the moment it is commented out when in MSVC
+
+
+#ifndef eoSIGContinue_h
+#define eoSIGContinue_h
+
+#include <signal.h>
+#include <eoContinue.h>
+
+extern bool existSIGContinue;
+extern bool call_func;
+
+void	set_bool(int)
+{
+  call_func = true;
+}
+
+/**
+    Ctrl C handling: this eoContinue tells whether the user pressed Ctrl C
+*/
+template< class EOT>
+class eoSIGContinue: public eoContinue<EOT>
+{
+public:
+  /// Ctor : installs the signal handler
+  eoSIGContinue(int sig, sighandler_t fct)
+    : _sig(sig), _fct(fct)
+  {
+    // First checks that no other eoSIGContinue does exist
+    if (existSIGContinue)
+      throw std::runtime_error("A signal handler is already defined!\n");
+
+    #ifndef _WINDOWS
+      #ifdef SIGQUIT
+        ::signal( sig, set_bool );
+        existSIGContinue = true;
+      #endif
+    #endif
+  }
+
+  /** Returns false when the signal has been typed in reached */
+  virtual bool operator() ( const eoPop<EOT>& _vEO )
+  {
+    if (call_func)
+      {
+	_fct(_sig);
+	call_func = false;
+      }
+
+    return true;
+  }
+
+  virtual std::string className(void) const { return "eoSIGContinue"; }
+private:
+  int		_sig;
+  sighandler_t	_fct;
+};
+
+
+#endif
+
+ // of MSVC comment-out