public StreamData Decompress(StreamData data)
{
_compStream.Position = 0;
_compStream.Write(data.Array, data.Offset, data.Count);
_compStream.Position = 0;
var unzipStream = new GZipStream(_compStream, CompressionMode.Decompress, true);
const int Size = INIT_CAPACITY;
_decompStream.Position = 0;
while (true)
{
int count = unzipStream.Read(_outBuffer, 0, Size);
if (count == 0)
{
break;
}
_decompStream.Write(_outBuffer, 0, count);
}
unzipStream.Close();
return(ReadStreamData(_decompStream));
}
public StreamData Process(StreamMode mode, StreamData data)
{
try
{
OCProfiler.Start();
if (mode == StreamMode.Compress)
{
return(Compress(data));
}
else
{
return(Decompress(data));
}
}
finally
{
var elasped = (int)OCProfiler.Stop();
if (mode == StreamMode.Compress)
{
_stats.CompressTime += elasped;
}
else
{
_stats.DecompressTime += elasped;
}
}
}
public void Process(StreamMode mode, StreamData data, Action <byte[], int> callback)
{
if (!_disposed)
{
var request = new AsyncStreamRequest(mode, data, callback);
var task = new StreamTask(GetIdleUnit(), request);
ThreadPool.QueueUserWorkItem(_ => { task.Run(); });
}
}
public StreamData Compress(StreamData data)
{
_compStream.Position = 0;
var zipStream = new GZipStream(_compStream, CompressionMode.Compress, true);
zipStream.Write(data.Array, data.Offset, data.Count);
zipStream.Close();
return(ReadStreamData(_compStream));
}
public StreamData Decompress(StreamData data)
{
return(data);
}
public AsyncStreamRequest(StreamMode mode, StreamData data, Action <byte[], int> callback)
{
Mode = mode;
Data = data;
Callback = callback;
}
public void Process(StreamMode mode, StreamData data, Action <byte[], int> callback)
{
var output = _streamUnit.Process(mode, data);
callback(output.Array, output.Count);
}
private StreamData Decompress(StreamData data)
{
return(_algorithm.Decompress(data));
}