/// <summary>
/// For pruning to work properly and efficiently, it is assumed that you are adding items in order of oldest to newest.<para />
/// Use a minutesToRetain greater than 0 to trim older SnapShots.
/// </summary>
public void AddSnapShot(DateTime timeStamp, int value, int minutesToRetain = 0)
{
for (int i = 0; i < SnapShots.Count; i++)
{
if (SnapShots[i].TimeStamp == timeStamp)
{
SnapShots[i] = new SnapShot <int>(timeStamp, SnapShots[i].Value + value);
return;
}
}
SnapShots.Add(new SnapShot <int>(timeStamp, value));
if (minutesToRetain > 0)
{
for (int i = 0; i < SnapShots.Count; i++)
{
if (DateTime.UtcNow - SnapShots[i].TimeStamp <= TimeSpan.FromMinutes(minutesToRetain))
{
break;
}
SnapShots.RemoveAt(i);
i--;
}
}
}
public void Add(SnapShotEntry entry)
{
SnapShots.Add(entry);
this.Write(this.Filename);
}
