public bool Read(CtpObject[] row)
{
if (row.Length != m_response.Columns.Count)
{
throw new ArgumentException("The number of elements in array does not match the number of columns in the response", nameof(row));
}
if (m_stream.IsEmpty)
{
//It's possible that this is not enough since items might eventually be stored with a few bits, so I need some kind of extra escape sequence.
return(false);
}
for (int x = 0; x < row.Length; x++)
{
row[x] = m_stream.Read();
}
return(true);
}
private void Test(List <CtpObject> data)
{
var wr = new CtpObjectWriter();
for (var x = 0; x < data.Count; x++)
{
var o = data[x];
wr.Write(o);
}
var rd = new CtpObjectReader(wr.ToArray());
for (var x = 0; x < data.Count; x++)
{
var o = data[x];
var oo = rd.Read();
if (!o.Equals(oo))
{
throw new Exception($"Not Equal {o} {oo} on record {x}");
}
}
}
public override bool Read(SttpDataPoint dataPoint)
{
TryAgain:
if (m_stream.IsEmpty)
{
return(false);
}
m_lastChannelID++;
CtpObject value = m_stream.Read();
if (value.ValueTypeCode == CtpTypeCode.Integer)
{
long code = value.IsInteger;
if (0 <= code && code <= 15)
{
bool channelIDChanged = (code & 1) != 0;
bool hasMetadata = (code & 2) != 0;
bool qualityChanged = (code & 4) != 0;
bool timeChanged = (code & 8) != 0;
if (channelIDChanged)
{
m_lastChannelID = m_stream.Read().AsInt32;
}
if (hasMetadata)
{
Assign(new SttpDataPointID(m_stream.Read()), m_lastChannelID);
}
if (qualityChanged)
{
m_lastQuality = m_stream.Read().AsInt64;
}
if (timeChanged)
{
m_lastTimestamp = m_stream.Read().AsCtpTime;
}
value = m_stream.Read();
}
else
{
value = code - 16;
}
}
dataPoint.DataPoint = GetMetadata(m_lastChannelID);
dataPoint.Quality = m_lastQuality;
dataPoint.Time = m_lastTimestamp;
dataPoint.Value = value;
if (dataPoint.DataPoint == null)
{
goto TryAgain;
}
return(true);
}