double GetTimeSinceLastACKed()

{

if (NextToBeSent>NextToBeACKed)

{

struct timeb timebuffer;

ftime( &timebuffer );

double SecDiff = timebuffer.time - SegmentArray[NextToBeACKed].Time.time;

double MillSecDiff = timebuffer.millitm - SegmentArray[NextToBeACKed].Time.millitm;

return SecDiff + MillSecDiff*.001;

}

else

return 0;

}