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/*
(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>
*/
#ifndef __unix__
// warning preprocessor macro does not work with MS compilers
//#warning "Warning: class 'eoEvalUserTimeThrowException' is only available under UNIX systems (defining 'rusage' in 'sys/resource.h'), contributions for other systems are welcomed."
#else
#ifndef __EOEVALUSERTIMETHROWEXCEPTION_H__
#define __EOEVALUSERTIMETHROWEXCEPTION_H__
#include <sys/time.h>
#include <sys/resource.h>
#include <eoExceptions.h>
/** Check at each evaluation if a given CPU user time 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.
* This class uses (almost-)POSIX headers.
* It uses a computation of the user time used on the CPU. For a wallclock time measure, see eoEvalTimeThrowException
*
* @ingroup Evaluation
*/
template< class EOT >
class eoEvalUserTimeThrowException : public eoEvalFuncCounter< EOT >
{
public:
eoEvalUserTimeThrowException( eoEvalFunc<EOT> & func, const long max ) : eoEvalFuncCounter<EOT>( func, "CPU-user"), _max(max) {}
virtual void operator() ( EOT & eo )
{
if( eo.invalid() ) {
getrusage(RUSAGE_SELF,&_usage);
long current = _usage.ru_utime.tv_sec;
if( current >= _max ) {
throw eoMaxTimeException( current );
} else {
func(eo);
}
}
}
protected:
const long _max;
struct rusage _usage;
};
#endif // __EOEVALUSERTIMETHROWEXCEPTION_H__
#endif // __UNIX__
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