Can I pass a timeval as argument to sleep?

Question

Can I pass a timeval struct as the argument for a sleep function? I want to do this since the timeval struct can get very precise, since you can control the microseconds and I would like to sleep for a certain amount of microseconds. Can I do this?

Answer 1

You could do something like:

struct timeval {long tv_sec; long tv_usec;};

struct timezone {int tz_minuteswest; int tz_dsttime; };    

   struct timeval tp;
   struct timezone tzp;
   int i;

   i = gettimeofday(&tp,&tzp);

And using that you can implement a delay function. Please see this example.

However if you want a precise delay you could use functions that enable you to get more precise delay such as nanosleep()

struct timespec tim, tim2;
tim.tv_sec = 1;
tim.tv_nsec = 1000000000L; //1,000,000,000 nanoseconds = 1 second

nanosleep(&tim , &tim2);
/*code after 1 second sleep*/