protected StateFunc Params()
{
NetInt.ReadInt(delta, cmd.Len1, out param1);
NetInt.ReadInt(delta, cmd.Len2, out param2);
return(PatchRun);
}
private StateFunc Magic()
{
if (NetInt.ReadInt(stream) != Const.RS_SIG_MAGIC)
{
throw new Exception("Bad signature");
}
return(Header);
}
private StateFunc Header()
{
var signature = NetInt.ReadInt(delta);
if (signature != Const.RS_DELTA_MAGIC)
{
throw new Exception();
}
return(CommandByte);
}
private StateFunc Header()
{
var blockLength = NetInt.ReadInt(stream);
var strongLength = NetInt.ReadInt(stream);
processor.Header(blockLength, strongLength);
strong = new byte[strongLength];
return(Read);
}
public void Copy(long start, long length)
{
var lStart = Utils.GetIntLen(start);
var lLength = Utils.GetIntLen(length);
var op = ((GetOpcodeOffset(lStart) << 2) + GetOpcodeOffset(lLength)) + 64; // MAGIC
delta.WriteByte((byte)op);
NetInt.Write(delta, start, lStart);
NetInt.Write(delta, length, lLength);
}
private StateFunc Read()
{
long weak;
if (!NetInt.ReadInt(stream, 4, out weak))
{
return(Completed);
}
stream.Read(strong, 0, strong.Length);
processor.Chunk((uint)weak, new StrongSum(strong, StrongSumAlgorithm.Md4));
return(Read);
}
public void Literal(byte[] data, long offset, long count)
{
if (count <= 64)
{
delta.WriteByte((byte)count);
}
else
{
var lCount = Utils.GetIntLen(count);
var op = GetOpcodeOffset(lCount) + 64;
delta.WriteByte((byte)op);
NetInt.Write(delta, count, lCount);
}
delta.Write(data, (int)offset, (int)count);
}
public void Header()
{
NetInt.Write(delta, Const.RS_DELTA_MAGIC);
}
