public void Invalidate(int firstIndex, int count)
{
int lastIndex = Math.Min(firstIndex + count, _lastNumberOfEntries);
int invalidateCount = lastIndex - firstIndex;
// When the start index of the invalidation is greater than the last reported index
// then this means that our listeners haven't even gotten the change yet and thus
// they don't need to be notified of the invalidation either.
if (invalidateCount > 0)
{
var section = LogTableModification.Invalidate(firstIndex, invalidateCount);
_listener.OnLogTableModified(_logTable, section);
_lastNumberOfEntries = firstIndex;
}
}
private void Report(int numberOfLinesRead, DateTime now)
{
// We may never report all lines in one go if the listener specified
// that he only wants to receive batches of N.
// Therefore we invoke the listener multiple times.
int count;
while ((count = numberOfLinesRead - _lastNumberOfEntries) > 0)
{
count = Math.Min(count, _maximumCount);
var section = new LogTableModification(_lastNumberOfEntries, count);
_listener.OnLogTableModified(_logTable, section);
_lastNumberOfEntries += count;
_lastReportedTime = now;
}
}
public void EmitChanged(LogTableModification modification)
{
_listener.OnLogTableModified(_logTable, modification);
}