private void Initialize(ulong start, ulong stop, ulong mainInterval, ulong subInterval, ulong tolerance)
{
if (start > stop)
{
throw new ArgumentOutOfRangeException("start", "start must be before stop");
}
if (mainInterval < subInterval)
{
throw new ArgumentOutOfRangeException("mainInterval", "must be larger than the subinterval");
}
if (tolerance >= subInterval)
{
throw new ArgumentOutOfRangeException("tolerance", "must be smaller than the subinterval");
}
m_start = start;
m_stop = stop;
StartOfRange.SetMin();
StartOfRange.Timestamp = m_start;
EndOfRange.SetMax();
EndOfRange.Timestamp = m_stop;
m_current = start;
m_mainInterval = mainInterval;
m_subInterval = subInterval;
m_subIntervalPerMainInterval = (uint)Math.Round(mainInterval / (double)subInterval);
m_tolerance = tolerance;
m_count = 0;
}
/// <summary>
/// Resets the iterative nature of the filter.
/// </summary>
/// <remarks>
/// Since a time filter is a set of date ranges, this will reset the frame so a
/// call to <see cref="NextWindow"/> will return the first window of the sequence.
/// </remarks>
public override void Reset()
{
m_isEndReached = false;
StartOfRange.SetMin();
StartOfRange.Timestamp = m_start;
EndOfRange.SetMax();
EndOfRange.Timestamp = m_stop;
}
/// <summary>
/// Creates a filter from the boundary
/// </summary>
/// <param name="firstTime">the start of the only window.</param>
/// <param name="lastTime">the stop of the only window.</param>
public FixedRange(ulong firstTime, ulong lastTime)
: this()
{
m_start = firstTime;
m_stop = lastTime;
StartOfRange.SetMin();
StartOfRange.Timestamp = m_start;
EndOfRange.SetMax();
EndOfRange.Timestamp = m_stop;
}
/// <summary>
/// Creates a filter by reading from the stream.
/// </summary>
/// <param name="stream">the stream to read from</param>
public FixedRange(BinaryStreamBase stream)
: this()
{
m_start = stream.ReadUInt64();
m_stop = stream.ReadUInt64();
StartOfRange.SetMin();
StartOfRange.Timestamp = m_start;
EndOfRange.SetMax();
EndOfRange.Timestamp = m_stop;
}
public override bool NextWindow()
{
if (m_isEndReached)
{
return(false);
}
StartOfRange.SetMin();
EndOfRange.SetMax();
m_isEndReached = true;
return(true);
}
public override void Reset()
{
m_isEndReached = false;
StartOfRange.SetMin();
EndOfRange.SetMax();
}