106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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/**
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: http://eodev.sourceforge.net
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Authors: todos@geneura.ugr.es, http://geneura.ugr.es
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Marc.Schoenauer@polytechnique.fr
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mak@dhi.dk
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Caner.Candan@univ-angers.fr
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*/
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#ifndef _eoSignal_h
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#define _eoSignal_h
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#include <csignal>
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#include <utils/eoCheckPoint.h>
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#include <utils/eoLogger.h>
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#include <map>
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#include <vector>
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/**
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* @addtogroup Continuators
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* @{
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*/
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extern std::map< int, bool > signals_called;
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/** eoSignal inherits from eoCheckPoint including signals handling (see signal(7))
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*
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* @ingroup Utilities
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*/
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template <class EOT>
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class eoSignal : public eoCheckPoint<EOT>
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{
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public :
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eoSignal( int sig = SIGINT ) : eoCheckPoint<EOT>( _dummyContinue ), _sig( sig )
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{
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::signals_called[_sig] = false;
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#ifndef _WINDOWS
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#ifdef SIGQUIT
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::signal( _sig, handler );
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#endif // !SIGQUIT
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#endif // !_WINDOWS
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}
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eoSignal( eoContinue<EOT>& _cont, int sig = SIGINT ) : eoCheckPoint<EOT>( _cont ), _sig( sig )
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{
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::signals_called[_sig] = false;
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#ifndef _WINDOWS
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#ifdef SIGQUIT
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::signal( _sig, handler );
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#endif // !SIGQUIT
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#endif // !_WINDOWS
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}
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bool operator()( const eoPop<EOT>& _pop )
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{
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bool& called = ::signals_called[_sig];
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if ( called )
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{
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eo::log << eo::logging << "Signal granted…" << std::endl ;
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called = false;
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return this->eoCheckPoint<EOT>::operator()( _pop );
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}
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return true;
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}
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virtual std::string className(void) const { return "eoSignal"; }
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static void handler( int sig )
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{
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::signals_called[sig] = true;
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eo::log << eo::logging << "Signal wished…" << std::endl ;
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}
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private:
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class DummyContinue : public eoContinue<EOT>
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{
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public:
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bool operator() ( const eoPop<EOT>& ) { return true; }
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} _dummyContinue;
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int _sig;
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};
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/** @} */
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#endif // !_eoSignal_h
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