private void DecompressWork()
{
byte[] buffer;
int chunkIndex = 0;
int readLength = 0;
while (!_StopWork && (readLength = _ChunkReader.ReadChunk(out buffer, out chunkIndex)) > 0)
{
byte[] decompressed = null;
using (MemoryStream ws = new MemoryStream())
{
using (MemoryStream ms = new MemoryStream(buffer))
using (GZipStream gzip = new GZipStream(ms, CompressionMode.Decompress))
gzip.CopyTo(ws);
decompressed = ws.ToArray();
}
_ChunkWriter.WriteChunk(decompressed, 0, decompressed.Length, chunkIndex);
}
}
private void CompressWork()
{
int chunkIndex = 0;
byte[] buffer;
int readLength = 0;
while (!_StopWork && (readLength = _ChunkReader.ReadChunk(out buffer, out chunkIndex)) > 0)
{
byte[] compressed = null;
using (MemoryStream ms = new MemoryStream())
{
using (GZipStream gzip = new GZipStream(ms, CompressionMode.Compress))
{
gzip.Write(buffer, 0, readLength);
}
compressed = ms.ToArray();
}
_ChunkWriter.WriteChunk(compressed, 0, compressed.Length, chunkIndex);
}
}
public void ReadChunk(IChunkReader reader)
{
byte[] idBytes = ReadByteArray(4);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 4; i++)
{
char c = (char)idBytes[i];
if (c >= 'A' && c <= 'Z')
{
sb.Append(c);
}
else
{
throw new Exception("Chunk id contained unexpected letter");
}
}
string id = sb.ToString();
//System.Console.WriteLine("Reading " + id);
long chunkLength = ReadLong();
long chunkStart = stream.Position;
currentChunkStart = chunkStart;
currentChunkLength = chunkLength;
reader.ReadChunk(id, chunkLength, this);
long bytesReadByReader = stream.Position - chunkStart;
if (bytesReadByReader > chunkLength)
{
throw new Exception("Chunk reader read past the end of chunk '" + id + "'");
}
//System.Console.WriteLine("Skipping " + (chunkLength - bytesReadByReader));
// Skip the rest of the chunk
stream.Seek(chunkLength - bytesReadByReader, SeekOrigin.Current);
}
