Beispiel #1
0
 protected override void ProccessingData(object indexThread)
 {
     try
     {
         byte[] hederBytes;
         int    lenghtBlock;
         int    dataLenght;
         byte[] data;
         long   position;
         long   sizefile;
         while (true && !IsError)
         {
             BlockData block;
             if (BlockReaded.TryTakeBlock(out block))
             {
                 using (var memStream = new MemoryStream(block.Bytes))
                 {
                     using (var gzipStream = new GZipStream(memStream, CompressionMode.Decompress))
                     {
                         hederBytes = new byte[4] {
                             block.Bytes[4], block.Bytes[5], block.Bytes[6], block.Bytes[7]
                         };
                         lenghtBlock = BitConverter.ToInt32(hederBytes, 0);
                         dataLenght  = BitConverter.ToInt32(block.Bytes, lenghtBlock - 4);
                         data        = new byte[dataLenght];
                         gzipStream.Read(data, 0, dataLenght);
                         //отделяем от data первые 8 байт - 4 байта позиция записи, 4 байта размер файла
                         data = GetHelpersData(out position, out sizefile, data);
                         BlockProcessed.AddBlock(new BlockData(position, sizefile, data));
                         BlocksProcessedCount++;
                     }
                 }
             }
             else
             {
                 if (BlockReaded.IsFinish && BlocksProcessedCount == BlocksCount)
                 {
                     BlockProcessed.Finish();
                 }
                 return;
             }
         }
     }
     catch (IOException e)
     {
         ErrorOutput(e, "Unable to complete decompression operation due to insufficient RAM. Please close other applications and try again. ");
     }
     catch (OutOfMemoryException e)
     {
         ErrorOutput(e, "Not enough RAM to complete file decompression. Please close other applications and try again. ");
     }
     catch (Exception e)
     {
         ErrorOutput(e);
     }
     finally
     {
         EventWaitHandleArray[(int)indexThread].Set();
     }
 }
Beispiel #2
0
 /// <summary>
 /// сжатие данных
 /// </summary>
 protected override void ProccessingData(object indexThread)
 {
     try
     {
         BlockData block;
         while (true && !IsError)
         {
             if (BlockReaded.TryTakeBlock(out block))
             {
                 using (var memStream = new MemoryStream())
                 {
                     using (var gzipStream = new GZipStream(memStream, CompressionMode.Compress))
                     {
                         gzipStream.Write(block.Bytes, 0, block.Bytes.Length);
                     }
                     BlockProcessed.AddBlock(new BlockData(memStream.ToArray()));
                     BlocksProcessedCount++;
                 }
             }
             else
             {
                 if (BlockReaded.IsFinish && BlocksProcessedCount == BlocksCount)
                 {
                     BlockProcessed.Finish();
                 }
                 return;
             }
         }
     }
     catch (IOException e)
     {
         ErrorOutput(e, "Unable to complete compression operation due to insufficient RAM. Please close other applications and try again. ");
     }
     catch (OutOfMemoryException e)
     {
         ErrorOutput(e, "Not enough RAM to complete file compression. Please close other applications and try again. ");
     }
     catch (Exception e)
     {
         ErrorOutput(e);
     }
     finally
     {
         EventWaitHandleArray[(int)indexThread].Set();
     }
 }