public Enumerator(LogLineLineReader reader)
 {
     lock (reader.m_sync)
     {
         m_parent  = reader;
         m_first   = m_parent.m_entry;
         m_current = null;
     }
 }
 public void Dispose()
 {
     m_parent  = null;
     m_first   = null;
     m_current = null;
 }