1#include "time.h" 2 3#ifdef MSDOS 4#undef USE_CLOCK 5#define USE_CLOCK 6#endif 7 8#ifndef USE_CLOCK 9#define _INCLUDE_POSIX_SOURCE /* for HP-UX */ 10#define _INCLUDE_XOPEN_SOURCE /* for HP-UX */ 11#include "sys/types.h" 12#include "sys/times.h" 13#endif 14 15#undef Hz 16#ifdef CLK_TCK 17#define Hz CLK_TCK 18#else 19#ifdef HZ 20#define Hz HZ 21#else 22#define Hz 60 23#endif 24#endif 25 26 double 27#ifdef KR_headers 28etime_(tarray) float *tarray; 29#else 30etime_(float *tarray) 31#endif 32{ 33#ifdef USE_CLOCK 34#ifndef CLOCKS_PER_SECOND 35#define CLOCKS_PER_SECOND Hz 36#endif 37 double t = clock(); 38 tarray[1] = 0; 39 return tarray[0] = t / CLOCKS_PER_SECOND; 40#else 41 struct tms t; 42 43 times(&t); 44 return (tarray[0] = t.tms_utime/Hz) + (tarray[1] = t.tms_stime/Hz); 45#endif 46 } 47