public void ReadWrite(BitcoinStream stream)
{
if(stream.Serializing)
{
uint nMaskSize = 0, nMaskCode = 0;
CalcMaskSize(ref nMaskSize, ref nMaskCode);
bool fFirst = vout.Count > 0 && !vout[0].IsNull;
bool fSecond = vout.Count > 1 && !vout[1].IsNull;
uint nCode = unchecked((uint)(8 * (nMaskCode - (fFirst || fSecond ? 0 : 1)) + (fCoinBase ? 1 : 0) + (fFirst ? 2 : 0) + (fSecond ? 4 : 0)));
// version
stream.ReadWriteAsVarInt(ref nVersion);
// size of header code
stream.ReadWriteAsVarInt(ref nCode);
// spentness bitmask
for(uint b = 0 ; b < nMaskSize ; b++)
{
byte chAvail = 0;
for(uint i = 0 ; i < 8 && 2 + b * 8 + i < vout.Count ; i++)
if(!vout[2 + (int)b * 8 + (int)i].IsNull)
chAvail |= (byte)(1 << (int)i);
stream.ReadWrite(ref chAvail);
}
// txouts themself
for(uint i = 0 ; i < vout.Count ; i++)
{
if(!vout[(int)i].IsNull)
{
var compressedTx = new TxOutCompressor(vout[(int)i]);
stream.ReadWrite(ref compressedTx);
}
}
// coinbase height
stream.ReadWriteAsVarInt(ref nHeight);
}
else
{
uint nCode = 0;
// version
stream.ReadWriteAsVarInt(ref nVersion);
//// header code
stream.ReadWriteAsVarInt(ref nCode);
fCoinBase = (nCode & 1) != 0;
List<bool> vAvail = new List<bool>() { false, false };
vAvail[0] = (nCode & 2) != 0;
vAvail[1] = (nCode & 4) != 0;
uint nMaskCode = unchecked((uint)((nCode / 8) + ((nCode & 6) != 0 ? 0 : 1)));
//// spentness bitmask
while(nMaskCode > 0)
{
byte chAvail = 0;
stream.ReadWrite(ref chAvail);
for(uint p = 0 ; p < 8 ; p++)
{
bool f = (chAvail & (1 << (int)p)) != 0;
vAvail.Add(f);
}
if(chAvail != 0)
nMaskCode--;
}
// txouts themself
vout = Enumerable.Range(0, vAvail.Count).Select(_ => new TxOut()).ToList();
for(uint i = 0 ; i < vAvail.Count ; i++)
{
if(vAvail[(int)i])
{
TxOutCompressor compressed = new TxOutCompressor();
stream.ReadWrite(ref compressed);
vout[(int)i] = compressed.TxOut;
}
}
//// coinbase height
stream.ReadWriteAsVarInt(ref nHeight);
Cleanup();
UpdateValue();
}
}
public void ReadWrite(BitcoinStream stream)
{
if(stream.Serializing)
{
uint o = (uint)(nHeight * 2 + (fCoinBase ? 1 : 0));
stream.ReadWriteAsCompactVarInt(ref o);
if(nHeight > 0)
stream.ReadWriteAsCompactVarInt(ref nVersion);
TxOutCompressor compressor = new TxOutCompressor(txout);
stream.ReadWrite(ref compressor);
}
else
{
uint nCode = 0;
stream.ReadWriteAsCompactVarInt(ref nCode);
nHeight = nCode / 2;
fCoinBase = (nCode & 1) != 0;
if(nHeight > 0)
stream.ReadWriteAsCompactVarInt(ref nVersion);
TxOutCompressor compressor = new TxOutCompressor();
stream.ReadWrite(ref compressor);
txout = compressor.TxOut;
}
}
