public CCompressedBlockSend(byte[] data, uint start, uint end, byte[] FileHash, ref ArrayList UploadDataPackets)
{
// byte[] buffercomp=new byte[final-inicio+300];
// Deflater descompresor=new Deflater();
// descompresor.SetInput(datos);
// descompresor.Flush();
// int compressedsize=descompresor.Deflate(buffercomp,0,(int)(final-inicio)+300);
// descompresor.Finish();
byte[] buffercomp = null;
int compressedsize = ComprimirBuffer(data, ref buffercomp);
if (compressedsize >= end - start)
{
buffercomp = null;
MemoryStream strmdatos = new MemoryStream(data);
CSendBlock EnvioBloque = new CSendBlock(strmdatos, start, end, FileHash, ref UploadDataPackets);
return;
}
Debug.Write("Compressed comp:" + compressedsize.ToString() + " win: " + Convert.ToString(end - start - compressedsize) + "\n");
MemoryStream datosComp = new MemoryStream(buffercomp);
end = start + (uint)compressedsize;
MemoryStream buffer;
uint size;
BinaryReader reader = new BinaryReader(datosComp);
BinaryWriter writer;
byte[] aux_buffer;
while (start != end)
{
buffer = new MemoryStream();
writer = new BinaryWriter(buffer);
DonkeyHeader header = new DonkeyHeader((byte)Protocol.ClientCommandExt.CompressedPart, writer, Protocol.ProtocolType.eMule);
writer.Write(FileHash);
if (end - start > 10240) size = 10240;
else size = end - start;
writer.Write(start);
writer.Write(compressedsize);
aux_buffer = reader.ReadBytes((int)size);
writer.Write(aux_buffer);
start += size;
header.Packetlength = (uint)writer.BaseStream.Length - header.Packetlength + 1;
writer.Seek(0, SeekOrigin.Begin);
header.Serialize(writer);
UploadDataPackets.Add(buffer);
writer = null;
buffer = null;
}
reader.Close();
datosComp.Close();
datosComp = null;
reader = null;
}
private bool m_CreateDataPackets()
{
CFileBlock sendBlock;
sendBlock=(CFileBlock)m_UploadBlocks[0];
byte[] Datos=null;
CElement element=(CElement)CKernel.FilesList[sendBlock.FileHash];
m_UploadElement=element;
if (CKernel.SameHash(ref m_UpFileHash,ref sendBlock.FileHash))
{
Buffer.BlockCopy(sendBlock.FileHash,0,m_UpFileHash,0,16);
}
if ((element!=null)&&(sendBlock.end-sendBlock.start<185000))
{
Datos=element.File.ReadBlock(sendBlock.start,sendBlock.end-1,false);
}
if ((Datos==null)||(element==null))
{
// cancel upload
Debug.Write("Part not found in file\n");
CancelUploadTransfer(false);
return false;
}
MemoryStream DatosStream=new MemoryStream(Datos);
//if you uncoment this upload compression will be enabled (not so tested)
//if (bEsMula)
//{
// CCompressedBlockSend EnvioBloque=new CCompressedBlockSend(Datos,sendBlock.inicio,sendBlock.fin,sendBlock.FileHash,ref m_UploadDataPackets);
//}
//else
//{
CSendBlock EnvioBloque=new CSendBlock(DatosStream,sendBlock.start,sendBlock.end,sendBlock.FileHash,ref m_UploadDataPackets);
//}
Datos=null;
m_UploadBlocks.Remove(sendBlock);
//GC.Collect();
return true;
}
