#include <stdio.h>
#include <sys/time.h>


struct timeval tv1, tv2;
struct timezone tz;

void
getTime(float time) {
   (void) gettimeofday(&tv1, &tz);
   sleep((int)time);
   (void) gettimeofday(&tv2, &tz);
   printf("sleep %fsec, tv1=%d.%d, tv2=%d.%d\n", time, tv1.tv_sec, tv1.tv_usec, tv2.tv_sec, tv2.tv_usec) ;
}

main() {
   float time;
   int i;
   for (i=0; i<100 & time > 0; i++) {
   printf("enter sec number:\n");
   scanf("%f", &time); 
   printf("time=%f\n", time);

   getTime(time);
   }
}