libs/basekit/source/PortableUsleep.c

   1 int PortableUsleep_justHereToAvoidRanlibWarning(void) { return 0; }
   2
   3 #ifdef WIN32
   4 #include <windows.h>
   5
   6 int usleep(unsigned int us)
   7 {
   8         static LARGE_INTEGER freq;
   9         static int initted = 0;
  10         LARGE_INTEGER s, e, d;
  11
  12         if (!initted)
  13         {
  14                 QueryPerformanceFrequency(&freq);
  15                 initted = 1;
  16         }
  17
  18         QueryPerformanceCounter(&s);
  19         d.QuadPart = freq.QuadPart * ((double)us / 1000000.0);
  20
  21         do
  22         {
  23                 QueryPerformanceCounter(&e);
  24         } while (e.QuadPart - s.QuadPart < d.QuadPart);
  25
  26         return 0;
  27
  28 }
  29
  30 #endif
  31
  32