73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/*
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(c) Thales group, 2010
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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;
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version 2 of the License.
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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:
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Johann Dréo <johann.dreo@thalesgroup.com>
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*/
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#ifndef __unix__
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/*#warning "Warning: class 'eoEvalUserTimeThrowException' is only available under UNIX systems (defining 'rusage' in 'sys/resource.h'), contributions for other systems are welcomed."*/
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#else
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#ifndef __EOEVALUSERTIMETHROWEXCEPTION_H__
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#define __EOEVALUSERTIMETHROWEXCEPTION_H__
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <eoExceptions.h>
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/** Check at each evaluation if a given CPU user time contract has been reached.
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*
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* Throw an eoMaxTimeException if the given max time has been reached.
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* Usefull if you want to end the search independently of generations.
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* This class uses (almost-)POSIX headers.
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* It uses a computation of the user time used on the CPU. For a wallclock time measure, see eoEvalTimeThrowException
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*
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* @ingroup Evaluation
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*/
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template< class EOT >
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class eoEvalUserTimeThrowException : public eoEvalFuncCounter< EOT >
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{
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public:
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eoEvalUserTimeThrowException( eoEvalFunc<EOT> & func, const long max ) : eoEvalFuncCounter<EOT>( func, "CPU-user"), _max(max) {}
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virtual void operator() ( EOT & eo )
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{
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if( eo.invalid() ) {
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getrusage(RUSAGE_SELF,&_usage);
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long current = _usage.ru_utime.tv_sec;
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if( current >= _max ) {
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throw eoMaxTimeException( current );
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} else {
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func(eo);
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}
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}
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}
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protected:
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const long _max;
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struct rusage _usage;
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};
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#endif // __EOEVALUSERTIMETHROWEXCEPTION_H__
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#endif // __UNIX__
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