System.Net.Cache.MetadataUpdateStream.Dispose C# (CSharp) Method

        protected virtual void Dispose(bool disposing, CloseExState closeState) {

            if (Interlocked.Increment(ref _Disposed) == 1) {
                ICloseEx icloseEx = m_ParentStream as ICloseEx;

                if (icloseEx != null) {
                    icloseEx.CloseEx(closeState);
                }
                else {
                    m_ParentStream.Close();
                }

                if (m_CacheDestroy)
                {
                    if (m_IsStrictCacheErrors)
                    {
                        m_Cache.Remove(m_Key);
                    }
                    else
                    {
                        m_Cache.TryRemove(m_Key);
                    }
                }
                else
                {
                    if (m_IsStrictCacheErrors)
                    {
                        m_Cache.Update(m_Key, m_Expires, m_LastModified, m_LastSynchronized, m_MaxStale, m_EntryMetadata, m_SystemMetadata);
                    }
                    else
                    {
                        m_Cache.TryUpdate(m_Key, m_Expires, m_LastModified, m_LastSynchronized, m_MaxStale, m_EntryMetadata, m_SystemMetadata);
                    }

                }

                if (!disposing) {
                    m_Cache             = null;
                    m_Key               = null;
                    m_EntryMetadata     = null;
                    m_SystemMetadata    = null;
                }
            }
            base.Dispose(disposing);
        }
    }