/// <summary>
/// Returns elapsed time, calculated as (end - begin) if both are defined or
/// (now - begin) if end is undefined or 0 if both are undefined.
/// </summary>
/// <remarks>
/// Returns elapsed time, calculated as (end - begin) if both are defined or
/// (now - begin) if end is undefined or 0 if both are undefined. Begin and end
/// time may come from different AbstractTracking instances.
/// </remarks>
/// <param name="beginTracking">AbstractTracking containing begin time</param>
/// <param name="endTracking">AbstractTracking containing end time</param>
/// <returns>long elapsed time</returns>
private long GetElapsedTime(AbstractTracking beginTracking, AbstractTracking endTracking
)
{
long elapsed;
if (beginTracking != null && beginTracking.beginTime != long.MinValue && endTracking
!= null && endTracking.endTime != long.MinValue)
{
elapsed = endTracking.endTime - beginTracking.beginTime;
}
else
{
if (beginTracking != null && beginTracking.beginTime != long.MinValue)
{
elapsed = Time.MonotonicNow() - beginTracking.beginTime;
}
else
{
elapsed = 0;
}
}
return(Math.Max(0, elapsed));
}
/// <summary>
/// Subclass instances may call this method during cloning to copy the values of
/// all properties stored in this base class.
/// </summary>
/// <param name="dest">AbstractTracking destination for copying properties</param>
protected internal virtual void Copy(AbstractTracking dest)
{
dest.beginTime = beginTime;
dest.endTime = endTime;
}
/// <summary>
/// Returns elapsed time, calculated as (end - begin) if both are defined or
/// (now - begin) if end is undefined or 0 if both are undefined.
/// </summary>
/// <remarks>
/// Returns elapsed time, calculated as (end - begin) if both are defined or
/// (now - begin) if end is undefined or 0 if both are undefined. Begin and end
/// time come from the same AbstractTracking instance.
/// </remarks>
/// <param name="tracking">AbstractTracking containing begin and end time</param>
/// <returns>long elapsed time</returns>
private long GetElapsedTime(AbstractTracking tracking)
{
return(GetElapsedTime(tracking, tracking));
}