/// <summary>
/// Get the time elapsed between tfrom and tto adjusted by multiplier and potentially rounded
/// </summary>
/// <param name="tfrom">start of time span definition</param>
/// <param name="tto">end of timespan definition</param>
/// <param name="multiplier">give 1000000 to get microseconds; 1.0/24/3600 to get days</param>
/// <param name="round">Round to a whole number</param>
/// <returns>adjusted time value</returns>
public static double GetTimeStampValue(AgeReference tfrom, AgeReference tto, double multiplier, bool round)
{
var timeFrom = GetEpochTime(tfrom);
var timeTo = GetEpochTime(tto);
var value = AdjustTimeValue(timeTo - timeFrom, multiplier, round);
return(value);
}
/// <summary>
/// Get the epoch time requested in seconds
/// </summary>
/// <param name="ageRef"></param>
/// <returns>seconds since epoch 1970</returns>
public static double GetEpochTime(AgeReference ageRef)
{
switch (ageRef)
{
case AgeReference.Now:
var uptime = GetSystemUpTime();
return(s_ref_sys_time + uptime);
case AgeReference.Epoch1970: return(0);
case AgeReference.SystemStart: return(s_ref_sys_time);
case AgeReference.ApplicationStart: return(s_ref_app_time);
default:
LogLog.Error(typeof(Stamp), String.Format("AgeReference not implemented: {0}", ageRef));
return(long.MinValue);
}
}
/// <summary>
/// Create instance by default stamping with Now - Epoch1970
/// </summary>
public TimeStamp()
{
TimeFrom = AgeReference.Epoch1970;
TimeTo = AgeReference.Now;
}