paradiseo/deprecated/eo/src/utils/eoSignal.h

106 lines
2.6 KiB
C++

// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
/**
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: http://eodev.sourceforge.net
Authors: todos@geneura.ugr.es, http://geneura.ugr.es
Marc.Schoenauer@polytechnique.fr
mak@dhi.dk
Caner.Candan@univ-angers.fr
*/
#ifndef _eoSignal_h
#define _eoSignal_h
#include <csignal>
#include <utils/eoCheckPoint.h>
#include <utils/eoLogger.h>
#include <map>
#include <vector>
/**
* @addtogroup Continuators
* @{
*/
extern std::map< int, bool > signals_called;
/** eoSignal inherits from eoCheckPoint including signals handling (see signal(7))
*
* @ingroup Utilities
*/
template <class EOT>
class eoSignal : public eoCheckPoint<EOT>
{
public :
eoSignal( int sig = SIGINT ) : eoCheckPoint<EOT>( _dummyContinue ), _sig( sig )
{
::signals_called[_sig] = false;
#ifndef _WINDOWS
#ifdef SIGQUIT
::signal( _sig, handler );
#endif // !SIGQUIT
#endif // !_WINDOWS
}
eoSignal( eoContinue<EOT>& _cont, int sig = SIGINT ) : eoCheckPoint<EOT>( _cont ), _sig( sig )
{
::signals_called[_sig] = false;
#ifndef _WINDOWS
#ifdef SIGQUIT
::signal( _sig, handler );
#endif // !SIGQUIT
#endif // !_WINDOWS
}
bool operator()( const eoPop<EOT>& _pop )
{
bool& called = ::signals_called[_sig];
if ( called )
{
eo::log << eo::logging << "Signal granted…" << std::endl ;
called = false;
return this->eoCheckPoint<EOT>::operator()( _pop );
}
return true;
}
virtual std::string className(void) const { return "eoSignal"; }
static void handler( int sig )
{
::signals_called[sig] = true;
eo::log << eo::logging << "Signal wished…" << std::endl ;
}
private:
class DummyContinue : public eoContinue<EOT>
{
public:
bool operator() ( const eoPop<EOT>& ) { return true; }
} _dummyContinue;
int _sig;
};
/** @} */
#endif // !_eoSignal_h