/// <summary>
/// Shutdown the data queries and consolidation thread.
/// </summary>
public void Shutdown()
{
m_evtCancel.Set();
m_iquery.Close();
}
/// <summary>
/// The query thread is where all data is collected from the underlying custom query managed.
/// </summary>
private void queryThread()
{
try
{
int nWait = 0;
m_iquery.Open();
while (!m_evtCancel.WaitOne(nWait))
{
if (!m_evtQueryEnabled.WaitOne(0))
{
m_evtPaused.Set();
nWait = 250;
continue;
}
m_evtPaused.Reset();
if (m_rgDataQueue.Count >= m_nMaxCount)
{
nWait = 10;
continue;
}
double[] rgData = m_iquery.QueryByTime(m_dt, m_tsInc, m_nSegmentSize);
if (rgData == null)
{
m_bQueryEnd = true;
nWait = 10;
continue;
}
nWait = 0;
m_bQueryEnd = false;
int nItemCount = rgData.Length / m_nSegmentSize;
int nSrcIdx = 0;
lock (m_objSync)
{
for (int i = 0; i < m_nSegmentSize; i++)
{
double[] rgItem = new double[nItemCount];
Array.Copy(rgData, nSrcIdx, rgItem, 0, nItemCount);
nSrcIdx += nItemCount;
m_rgDataQueue.Enqueue(rgItem);
}
}
m_dt += TimeSpan.FromMilliseconds(m_nSegmentSize * m_tsInc.TotalMilliseconds);
}
}
catch (Exception excpt)
{
throw excpt;
}
finally
{
m_iquery.Close();
}
}
