public bool HaveInputs(Transaction tx)
{
if (!tx.IsCoinBase)
{
// first check whether information about the prevout hash is available
for (int i = 0; i < tx.Inputs.Count; i++)
{
OutPoint prevout = tx.Inputs[i].PrevOut;
if (!HaveCoins(prevout.Hash))
{
return(false);
}
}
// then check whether the actual outputs are available
for (int i = 0; i < tx.Inputs.Count; i++)
{
OutPoint prevout = tx.Inputs[i].PrevOut;
Coins coins = GetCoins(prevout.Hash);
if (!coins.IsAvailable(prevout.N))
{
return(false);
}
}
}
return(true);
}
public TxOut GetOutputFor(TxIn input)
{
Coins coins = GetCoins(input.PrevOut.Hash);
if (!coins.IsAvailable(input.PrevOut.N))
{
return(null);
}
return(coins.Outputs[(int)input.PrevOut.N]);
}