internal Header(RrdDb parentDb, RrdDef rrdDef)
{
this.parentDb = parentDb;
signature = new RrdString(SIGNATURE, this);
step = new RrdLong(rrdDef.Step, this);
dsCount = new RrdInt(rrdDef.DsCount, this);
arcCount = new RrdInt(rrdDef.ArcCount, this);
lastUpdateTime = new RrdLong(rrdDef.StartTime, this);
}
internal Header(RrdDb parentDb)
{
this.parentDb = parentDb;
signature = new RrdString(this);
if(!signature.Get().Equals(SIGNATURE))
{
throw new RrdException("Not an RRDSharp file");
}
step = new RrdLong(this);
dsCount = new RrdInt(this);
arcCount = new RrdInt(this);
lastUpdateTime = new RrdLong(this);
}
/// <summary>
///
/// </summary>
/// <param name="parentArc"></param>
public ArcState(Archive parentArc)
{
this.parentArc = parentArc;
if(RrdFile.RrdMode == RrdFile.MODE_CREATE)
{
// should initialize
Header header = parentArc.ParentDb.Header;
long step = header.Step;
long lastUpdateTime = header.LastUpdateTime;
long arcStep = parentArc.ArcStep;
long nan = (Util.Normalize(lastUpdateTime, step) -
Util.Normalize(lastUpdateTime, arcStep)) / step;
accumValue = new RrdDouble(Double.NaN, this);
nanSteps = new RrdLong(nan, this);
}
else
{
accumValue = new RrdDouble(this);
nanSteps = new RrdLong(this);
}
}