ParseBinaryImage() публичный Метод

Initializes the SignalIndexCache by parsing the specified buffer containing a binary image.
public ParseBinaryImage ( byte buffer, int startIndex, int length ) : int
buffer byte Buffer containing binary image to parse.
startIndex int 0-based starting index in the to start parsing.
length int Valid number of bytes within to read from .
Результат int
Документация по классу SignalIndexCache
Пример #1
0
        private SignalIndexCache DeserializeSignalIndexCache(byte[] buffer)
        {
            CompressionModes compressionModes = (CompressionModes)(m_operationalModes & OperationalModes.CompressionModeMask);
            bool useCommonSerializationFormat = (m_operationalModes & OperationalModes.UseCommonSerializationFormat) > 0;
            bool compressSignalIndexCache = (m_operationalModes & OperationalModes.CompressSignalIndexCache) > 0;

            SignalIndexCache deserializedCache;

            GZipStream inflater = null;

            if (compressSignalIndexCache && compressionModes.HasFlag(CompressionModes.GZip))
            {
                try
                {
                    using (MemoryStream compressedData = new MemoryStream(buffer))
                    {
                        inflater = new GZipStream(compressedData, CompressionMode.Decompress, true);
                        buffer = inflater.ReadStream();
                    }
                }
                finally
                {
                    if ((object)inflater != null)
                        inflater.Close();
                }
            }

            if (useCommonSerializationFormat)
            {
                deserializedCache = new SignalIndexCache();
                deserializedCache.Encoding = m_encoding;
                deserializedCache.ParseBinaryImage(buffer, 0, buffer.Length);
            }
            else
            {
                deserializedCache = Serialization.Deserialize<SignalIndexCache>(buffer, SerializationFormat.Binary);
            }

            return deserializedCache;
        }
Пример #2
0
        private SignalIndexCache DeserializeSignalIndexCache(byte[] buffer)
        {
            GatewayCompressionMode gatewayCompressionMode = (GatewayCompressionMode)(m_operationalModes & OperationalModes.CompressionModeMask);
            bool useCommonSerializationFormat = (m_operationalModes & OperationalModes.UseCommonSerializationFormat) > 0;
            bool compressSignalIndexCache = (m_operationalModes & OperationalModes.CompressSignalIndexCache) > 0;

            SignalIndexCache deserializedCache;

            MemoryStream compressedData = null;
            GZipStream inflater = null;

            if (compressSignalIndexCache && gatewayCompressionMode == GatewayCompressionMode.GZip)
            {
                try
                {
                    compressedData = new MemoryStream(buffer);
                    inflater = new GZipStream(compressedData, CompressionMode.Decompress);
                    buffer = inflater.ReadStream();
                }
                finally
                {
                    if ((object)inflater != null)
                        inflater.Close();

                    if ((object)compressedData != null)
                        compressedData.Close();
                }
            }

            if (useCommonSerializationFormat)
            {
                deserializedCache = new SignalIndexCache();
                deserializedCache.Encoding = m_encoding;
                deserializedCache.ParseBinaryImage(buffer, 0, buffer.Length);
            }
            else
            {
                deserializedCache = Serialization.Deserialize<SignalIndexCache>(buffer, GSF.SerializationFormat.Binary);
            }

            return deserializedCache;
        }