private void _qm_worker(object arg)
{
bool done = false;
Changeset cs = null;
while (!done)
{
bool signaled = _queries.ItemsWaiting.WaitOne(100);
if (signaled)
{
QueryRec rec = _queries.pop();
if (rec != null)
{
cs = _mergeHist.getCS(rec.id);
/* run the query. */
List <QueryRec> recs = _mergeHist.queryMerge(cs, rec.item, rec.distance);
/* dump the extra queries into the queue */
foreach (var r in recs)
{
_queries.push(r);
}
}
else
{
done = true;
}
}
else
{
done = true;
}
}
}