public DecompressedData Decompress(byte[] data, int offset, int count, bool forceDecompress = false, bool dataCanBeLarger = false)
{
if (decompressorInputStream == null)
{
decompressorInputStream = new BufferPoolMemoryStream(count);
}
if (data != null)
{
decompressorInputStream.Write(data, offset, count);
}
if (!forceDecompress && decompressorInputStream.Length < MinLengthToDecompress)
{
return(new DecompressedData(null, 0));
}
decompressorInputStream.Position = 0;
if (decompressorGZipStream == null)
{
decompressorGZipStream = new Zlib.GZipStream(decompressorInputStream,
Zlib.CompressionMode.Decompress,
Zlib.CompressionLevel.Default,
true);
decompressorGZipStream.FlushMode = Zlib.FlushType.Sync;
}
if (decompressorOutputStream == null)
{
decompressorOutputStream = new BufferPoolMemoryStream();
}
decompressorOutputStream.SetLength(0);
byte[] copyBuffer = BufferPool.Get(1024, true);
int readCount;
int sumReadCount = 0;
while ((readCount = decompressorGZipStream.Read(copyBuffer, 0, copyBuffer.Length)) != 0)
{
decompressorOutputStream.Write(copyBuffer, 0, readCount);
sumReadCount += readCount;
}
BufferPool.Release(copyBuffer);
// If no read is done (returned with any data) don't zero out the input stream, as it would delete any not yet used data.
if (sumReadCount > 0)
{
decompressorGZipStream.SetLength(0);
}
byte[] result = decompressorOutputStream.ToArray(dataCanBeLarger);
return(new DecompressedData(result, dataCanBeLarger ? (int)decompressorOutputStream.Length : result.Length));
}
private byte[] Decompress(byte[] data, int offset, int count)
{
if (decompressorInputStream == null)
{
decompressorInputStream = new MemoryStream(count);
}
decompressorInputStream.Write(data, offset, count);
// http://tools.ietf.org/html/rfc7692#section-7.2.2
// Append 4 octets of 0x00 0x00 0xff 0xff to the tail end of the payload of the message.
//decompressorInputStream.Write(PerMessageCompression.Trailer, 0, PerMessageCompression.Trailer.Length);
decompressorInputStream.Position = 0;
if (decompressorGZipStream == null)
{
decompressorGZipStream = new Decompression.Zlib.GZipStream(decompressorInputStream,
Decompression.Zlib.CompressionMode.Decompress,
Decompression.Zlib.CompressionLevel.Default,
true);
decompressorGZipStream.FlushMode = Decompression.Zlib.FlushType.Sync;
}
if (decompressorOutputStream == null)
{
decompressorOutputStream = new System.IO.MemoryStream();
}
decompressorOutputStream.SetLength(0);
if (copyBuffer == null)
{
copyBuffer = new byte[1024];
}
int readCount;
while ((readCount = decompressorGZipStream.Read(copyBuffer, 0, copyBuffer.Length)) != 0)
{
decompressorOutputStream.Write(copyBuffer, 0, readCount);
}
decompressorGZipStream.SetLength(0);
byte[] result = decompressorOutputStream.ToArray();
/*if (this.ServerNoContextTakeover)
* {
* decompressorDeflateStream.Dispose();
* decompressorDeflateStream = null;
* }*/
return(result);
}
private byte[] Decompress(byte[] data, int offset, int count, bool forceDecompress = false)
{
if (decompressorInputStream == null)
{
decompressorInputStream = new MemoryStream(count);
}
if (data != null)
{
decompressorInputStream.Write(data, offset, count);
}
if (!forceDecompress && decompressorInputStream.Length < MinLengthToDecompress)
{
return(null);
}
decompressorInputStream.Position = 0;
if (decompressorGZipStream == null)
{
decompressorGZipStream = new Decompression.Zlib.GZipStream(decompressorInputStream,
Decompression.Zlib.CompressionMode.Decompress,
Decompression.Zlib.CompressionLevel.Default,
true);
decompressorGZipStream.FlushMode = Decompression.Zlib.FlushType.Sync;
}
if (decompressorOutputStream == null)
{
decompressorOutputStream = new System.IO.MemoryStream();
}
decompressorOutputStream.SetLength(0);
if (copyBuffer == null)
{
copyBuffer = new byte[1024];
}
int readCount;
while ((readCount = decompressorGZipStream.Read(copyBuffer, 0, copyBuffer.Length)) != 0)
{
decompressorOutputStream.Write(copyBuffer, 0, readCount);
}
decompressorGZipStream.SetLength(0);
byte[] result = decompressorOutputStream.ToArray();
return(result);
}
private byte[] Decompress(byte[] data, int offset, int count, bool forceDecompress = false)
{
if (decompressorInputStream == null)
{
decompressorInputStream = new BufferPoolMemoryStream(count);
}
if (data != null)
{
decompressorInputStream.Write(data, offset, count);
}
if (!forceDecompress && decompressorInputStream.Length < MinLengthToDecompress)
{
return(null);
}
decompressorInputStream.Position = 0;
if (decompressorGZipStream == null)
{
decompressorGZipStream = new Decompression.Zlib.GZipStream(decompressorInputStream,
Decompression.Zlib.CompressionMode.Decompress,
Decompression.Zlib.CompressionLevel.Default,
true);
decompressorGZipStream.FlushMode = Decompression.Zlib.FlushType.Sync;
}
if (decompressorOutputStream == null)
{
decompressorOutputStream = new BufferPoolMemoryStream();
}
decompressorOutputStream.SetLength(0);
byte[] copyBuffer = VariableSizedBufferPool.Get(1024, true);
int readCount;
while ((readCount = decompressorGZipStream.Read(copyBuffer, 0, copyBuffer.Length)) != 0)
{
decompressorOutputStream.Write(copyBuffer, 0, readCount);
}
VariableSizedBufferPool.Release(copyBuffer);
decompressorGZipStream.SetLength(0);
// TODO: be able to use a larger array
byte[] result = decompressorOutputStream.ToArray();
return(result);
}