/**
* compute fraction of given struct timeval
*
- * \param div the integer value to divide by
+ * \param divisor the integer value to divide by
* \param tv the timevalue to divide
* \param result holds (1 / mult) * tv upon return
*/
-void tv_divide(const unsigned long div, const struct timeval *tv,
+void tv_divide(const unsigned long divisor, const struct timeval *tv,
struct timeval *result)
{
- long unsigned q = tv->tv_usec / div;
- result->tv_sec = tv->tv_sec / div;
- result->tv_usec = (tv->tv_sec - result->tv_sec * div) * 1000 * 1000 / div;
- if (result->tv_usec + q >= 1000 * 1000) {
- result->tv_sec++;
- result->tv_usec = 1000 * 1000 - result->tv_usec - q;
- } else
- result->tv_usec += q;
+ uint64_t x = ((uint64_t)tv->tv_sec * 1000 * 1000 + tv->tv_usec) / divisor;
+
+ result->tv_sec = x / 1000 / 1000;
+ result->tv_usec = x % (1000 * 1000);
}
/**