timer.hpp /usr/include/gecode/support.hh Gecode::Support::Timer Gecode Gecode::Support /*-*-mode:C++;c-basic-offset:2;indent-tabs-mode:nil-*-*/ /* *Mainauthors: *MikaelLagerkvist<lagerkvist@gecode.org> * *Copyright: *MikaelLagerkvist,2009 * *Lastmodified: *$Date:2010-07-1417:46:18+0200(Wed,14Jul2010)$by$Author:schulte$ *$Revision:11192$ * *ThisfileispartofGecode,thegenericconstraint *developmentenvironment: *http://www.gecode.org * *Permissionisherebygranted,freeofcharge,toanypersonobtaining *acopyofthissoftwareandassociateddocumentationfiles(the *"Software"),todealintheSoftwarewithoutrestriction,including *withoutlimitationtherightstouse,copy,modify,merge,publish, *distribute,sublicense,and/orsellcopiesoftheSoftware,andto *permitpersonstowhomtheSoftwareisfurnishedtodoso,subjectto *thefollowingconditions: * *Theabovecopyrightnoticeandthispermissionnoticeshallbe *includedinallcopiesorsubstantialportionsoftheSoftware. * *THESOFTWAREISPROVIDED"ASIS",WITHOUTWARRANTYOFANYKIND, *EXPRESSORIMPLIED,INCLUDINGBUTNOTLIMITEDTOTHEWARRANTIESOF *MERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEAND *NONINFRINGEMENT.INNOEVENTSHALLTHEAUTHORSORCOPYRIGHTHOLDERSBE *LIABLEFORANYCLAIM,DAMAGESOROTHERLIABILITY,WHETHERINANACTION *OFCONTRACT,TORTOROTHERWISE,ARISINGFROM,OUTOFORINCONNECTION *WITHTHESOFTWAREORTHEUSEOROTHERDEALINGSINTHESOFTWARE. * */ #ifdefGECODE_USE_GETTIMEOFDAY #include<sys/time.h> #endif #ifdefGECODE_USE_CLOCK #include<ctime> #endif namespaceGecode{namespaceSupport{ classGECODE_SUPPORT_EXPORTTimer{ private: #ifdefined(GECODE_USE_GETTIMEOFDAY) timevalt0; #elifdefined(GECODE_USE_CLOCK) clock_tt0; #endif public: voidstart(void); doublestop(void); }; inlinevoid Timer::start(void){ #ifdefined(GECODE_USE_GETTIMEOFDAY) if(gettimeofday(&t0,NULL)) throwOperatingSystemError("Timer::start[gettimeofday]"); #elifdefined(GECODE_USE_CLOCK) t0=clock(); #endif } inlinedouble Timer::stop(void){ #ifdefined(GECODE_USE_GETTIMEOFDAY) timevalt1,t; if(gettimeofday(&t1,NULL)) throwOperatingSystemError("Timer::stop[gettimeofday]"); //t=t1-t2 t.tv_sec=t1.tv_sec-t0.tv_sec; t.tv_usec=t1.tv_usec-t0.tv_usec; if(t.tv_usec<0){ t.tv_sec--; t.tv_usec+=1000000; } return(static_cast<double>(t.tv_sec)*1000.0)+ (static_cast<double>(t.tv_usec)/1000.0); #elifdefined(GECODE_USE_CLOCK) return(static_cast<double>(clock()-t0)/CLOCKS_PER_SEC)*1000.0; #endif } }} //STATISTICS:support-any