/// <summary>
/// Processes as many pending modifications as are available, removes existing indices if necessary and
/// establishes the boundaries of the source log file.
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
private bool ProcessModifications(CancellationToken token)
{
bool performedWork = false;
while (_pendingModifications.TryDequeue(out var modification) && !token.IsCancellationRequested)
{
if (modification.IsReset())
{
Clear();
_lastLogBuffer.Clear();
_currentSourceIndex = 0;
}
else if (modification.IsRemoved(out var removedSection))
{
LogLineIndex startIndex = removedSection.Index;
_fullSourceSection = new LogSourceSection(0, (int)startIndex);
if (_currentSourceIndex > _fullSourceSection.LastIndex)
{
_currentSourceIndex = (int)removedSection.Index;
}
RemoveFrom(_currentSourceIndex);
RemoveLinesFrom(_lastLogBuffer, _currentSourceIndex);
}
else if (modification.IsAppended(out var appendedSection))
{
_fullSourceSection = LogSourceSection.MinimumBoundingLine(_fullSourceSection, appendedSection);
}
performedWork = true;
}
return(performedWork);
}
/// <inheritdoc />
public void Dispose()
{
// https://github.com/Kittyfisto/Tailviewer/issues/282
_listeners.Clear();
_properties.Clear();
lock (_syncRoot)
{
_logBuffer.Clear();
}
}
protected override void DisposeAdditional()
{
lock (_syncRoot)
{
_entries.Clear();
_localProperties.Clear();
_properties.Clear();
}
base.DisposeAdditional();
}
protected override void OnResetSection()
{
lock (_syncRoot)
{
_buffer.Clear();
}
}