KeePassLib.Serialization.Kdb4File.ReadDocumentStreamed C# (CSharp) Метод

        private void ReadDocumentStreamed(XmlReader xr, Stream sParentStream)
        {
            Debug.Assert(xr != null);
            if(xr == null) throw new ArgumentNullException("xr");

            m_ctxGroups.Clear();
            m_dictBinPool = new Dictionary<string, ProtectedBinary>();
            m_dictBinPoolCopyOnRead = new Dictionary<string, ProtectedBinary>();

            KdbContext ctx = KdbContext.Null;

            uint uTagCounter = 0;

            bool bSupportsStatus = (m_slLogger != null);
            try
            {
                sParentStream.Position.ToString();
                sParentStream.Length.ToString();
            }
            catch(Exception) { bSupportsStatus = false; }

            m_bReadNextNode = true;

            while(true)
            {
                if(m_bReadNextNode)
                {
                    if(!xr.Read()) break;
                }
                else m_bReadNextNode = true;

                switch(xr.NodeType)
                {
                    case XmlNodeType.Element:
                        ctx = ReadXmlElement(ctx, xr);
                        break;

                    case XmlNodeType.EndElement:
                        ctx = EndXmlElement(ctx, xr);
                        break;

                    case XmlNodeType.XmlDeclaration:
                        break; // Ignore

                    default:
                        Debug.Assert(false);
                        break;
                }

                ++uTagCounter;
                if(((uTagCounter % 256) == 0) && bSupportsStatus)
                    m_slLogger.SetProgress((uint)((sParentStream.Position * 100) /
                        sParentStream.Length));
            }

            Debug.Assert(ctx == KdbContext.Null);
            if(ctx != KdbContext.Null) throw new FormatException();

            Debug.Assert(m_ctxGroups.Count == 0);
            if(m_ctxGroups.Count != 0) throw new FormatException();
        }