What should I use to replace gettimeofday() on Windows?

Question

I\'m writing a portable Socket class that supports timeouts for both sending and receiving... To implement these timeouts I\'m using select().... But, I sometim

Answer 1

How about:

unsigned long start = GetTickCount();
// stuff that needs to be timed
unsigned long delta = GetTickCount() - start;

GetTickCount() is not very precise, but will probably work well. If you see a lot of 0, 16 or 31 millisecond intervals, try timing over longer intervals or use a more precise function like timeGetTime.

What I usually do is this:

unsigned long deltastack;
int samples = 0;
float average;

unsigned long start = GetTickCount();
// stuff that needs to be timed
unsigned long delta = GetTickCount() - start;

deltastack += delta;
if (samples++ == 10)
{
   // total time divided by amount of samples
   average = (float)deltastack / 10.f;
   deltastack = 0;
   samples = 0;  
}