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eodev/eo/src/eoEvalTimeThrowException.h
2010-11-05 11:26:04 +01:00

59 lines
1.7 KiB
C++

/*
(c) Thales group, 2010
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;
version 2 of the License.
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:
Johann Dréo <johann.dreo@thalesgroup.com>
*/
#include <ctime>
#include <eoExceptions.h>
/** Check at each evaluation if a given tie contract has been reached.
*
* Throw an eoMaxTimeException if the given max time has been reached.
* Usefull if you want to end the search independently of generations.
*
* @ingroup Evaluation
*/
template< class EOT >
class eoEvalTimeThrowException : public eoEvalFuncCounter< EOT >
{
public:
eoEvalTimeThrowException( eoEvalFunc<EOT> & func, time_t max ) : _max(max), _start( std::time(NULL) ), eoEvalFuncCounter<EOT>( func, "Eval.") {}
virtual void operator() ( EOT & eo )
{
if( eo.invalid() ) {
time_t elapsed = static_cast<time_t>( std::difftime( std::time(NULL) , _start ) );
if( elapsed >= _max ) {
throw eoMaxTimeException(elapsed);
} else {
func(eo);
}
}
}
protected:
time_t _max;
time_t _start;
};