GlcoinCore/elements
1
0
Fork 0
mirror of https://github.com/ElementsProject/elements.git synced 2026-08-13 12:33:42 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

GetTransactionSigOpCost shouldn't need fedpegscript to evaluate

Browse source
This commit is contained in:
Gregory Sanders 2019-06-13 15:07:06 -04:00
parent 5097c3880c
commit 4ac437b87c
1 changed files with 10 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/consensus/tx_verify.cpp
View file

@ -157,26 +157,28 @@ int64_t GetTransactionSigOpCost(const CTransaction& tx, const CCoinsViewCache& i
nSigOps += GetP2SHSigOpCount(tx, inputs) * WITNESS_SCALE_FACTOR;
}
// N.B. Peg-in signatures are always counted against witness sigops,
// even if the prevout scriptpubkey isn't.
// Note that we only count segwit sigops for peg-in inputs
for (unsigned int i = 0; i < tx.vin.size(); i++)
{
CTxOut prevout;
CScript scriptPubKey;
if (tx.vin[i].m_is_pegin) {
std::string err;
// Make sure witness exists and is properly formatted
if (tx.witness.vtxinwit.size() != tx.vin.size() || !IsValidPeginWitness(tx.witness.vtxinwit[i].m_pegin_witness, tx.vin[i].prevout, err, false)) {
// Make sure witness exists and has enough peg-in witness fields for
// the claim_script
if (tx.witness.vtxinwit.size() != tx.vin.size() ||
tx.witness.vtxinwit[i].m_pegin_witness.stack.size() < 4) {
continue;
}
prevout = GetPeginOutputFromWitness(tx.witness.vtxinwit[i].m_pegin_witness);
const auto pegin_witness = tx.witness.vtxinwit[i].m_pegin_witness;
scriptPubKey = CScript(pegin_witness.stack[3].begin(), pegin_witness.stack[3].end());
} else {
const Coin& coin = inputs.AccessCoin(tx.vin[i].prevout);
assert(!coin.IsSpent());
prevout = coin.out;
scriptPubKey = coin.out.scriptPubKey;
}
const CScriptWitness* pScriptWitness = tx.witness.vtxinwit.size() > i ? &tx.witness.vtxinwit[i].scriptWitness : NULL;
nSigOps += CountWitnessSigOps(tx.vin[i].scriptSig, prevout.scriptPubKey, pScriptWitness, flags);
nSigOps += CountWitnessSigOps(tx.vin[i].scriptSig, scriptPubKey, pScriptWitness, flags);
}
return nSigOps;
}