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refactor: replace pointers by references within tx_verify.{h,cpp}
affects "prevHeights" parameter of the functions - CalculateSequenceLocks() - SequenceLocks()
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parent
fe1357a03a
commit
b00266fe0c
4 changed files with 11 additions and 11 deletions
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@ -27,9 +27,9 @@ bool IsFinalTx(const CTransaction &tx, int nBlockHeight, int64_t nBlockTime)
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return true;
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}
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std::pair<int, int64_t> CalculateSequenceLocks(const CTransaction &tx, int flags, std::vector<int>* prevHeights, const CBlockIndex& block)
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std::pair<int, int64_t> CalculateSequenceLocks(const CTransaction &tx, int flags, std::vector<int>& prevHeights, const CBlockIndex& block)
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{
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assert(prevHeights->size() == tx.vin.size());
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assert(prevHeights.size() == tx.vin.size());
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// Will be set to the equivalent height- and time-based nLockTime
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// values that would be necessary to satisfy all relative lock-
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@ -59,11 +59,11 @@ std::pair<int, int64_t> CalculateSequenceLocks(const CTransaction &tx, int flags
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// consensus-enforced meaning at this point.
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if (txin.nSequence & CTxIn::SEQUENCE_LOCKTIME_DISABLE_FLAG) {
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// The height of this input is not relevant for sequence locks
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(*prevHeights)[txinIndex] = 0;
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prevHeights[txinIndex] = 0;
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continue;
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}
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int nCoinHeight = (*prevHeights)[txinIndex];
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int nCoinHeight = prevHeights[txinIndex];
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if (txin.nSequence & CTxIn::SEQUENCE_LOCKTIME_TYPE_FLAG) {
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int64_t nCoinTime = block.GetAncestor(std::max(nCoinHeight-1, 0))->GetMedianTimePast();
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@ -99,7 +99,7 @@ bool EvaluateSequenceLocks(const CBlockIndex& block, std::pair<int, int64_t> loc
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return true;
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}
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bool SequenceLocks(const CTransaction &tx, int flags, std::vector<int>* prevHeights, const CBlockIndex& block)
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bool SequenceLocks(const CTransaction &tx, int flags, std::vector<int>& prevHeights, const CBlockIndex& block)
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{
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return EvaluateSequenceLocks(block, CalculateSequenceLocks(tx, flags, prevHeights, block));
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}
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@ -66,13 +66,13 @@ bool IsFinalTx(const CTransaction &tx, int nBlockHeight, int64_t nBlockTime);
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* Also removes from the vector of input heights any entries which did not
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* correspond to sequence locked inputs as they do not affect the calculation.
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*/
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std::pair<int, int64_t> CalculateSequenceLocks(const CTransaction &tx, int flags, std::vector<int>* prevHeights, const CBlockIndex& block);
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std::pair<int, int64_t> CalculateSequenceLocks(const CTransaction &tx, int flags, std::vector<int>& prevHeights, const CBlockIndex& block);
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bool EvaluateSequenceLocks(const CBlockIndex& block, std::pair<int, int64_t> lockPair);
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/**
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* Check if transaction is final per BIP 68 sequence numbers and can be included in a block.
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* Consensus critical. Takes as input a list of heights at which tx's inputs (in order) confirmed.
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*/
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bool SequenceLocks(const CTransaction &tx, int flags, std::vector<int>* prevHeights, const CBlockIndex& block);
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bool SequenceLocks(const CTransaction &tx, int flags, std::vector<int>& prevHeights, const CBlockIndex& block);
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#endif // BITCOIN_CONSENSUS_TX_VERIFY_H
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@ -448,7 +448,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
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m_node.mempool->addUnchecked(entry.Fee(HIGHFEE).Time(GetTime()).SpendsCoinbase(true).FromTx(tx));
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BOOST_CHECK(CheckFinalTx(CTransaction(tx), flags)); // Locktime passes
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BOOST_CHECK(!TestSequenceLocks(CTransaction(tx), flags)); // Sequence locks fail
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BOOST_CHECK(SequenceLocks(CTransaction(tx), flags, &prevheights, CreateBlockIndex(::ChainActive().Tip()->nHeight + 2))); // Sequence locks pass on 2nd block
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BOOST_CHECK(SequenceLocks(CTransaction(tx), flags, prevheights, CreateBlockIndex(::ChainActive().Tip()->nHeight + 2))); // Sequence locks pass on 2nd block
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// relative time locked
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tx.vin[0].prevout.hash = txFirst[1]->GetHash();
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@ -461,7 +461,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
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for (int i = 0; i < CBlockIndex::nMedianTimeSpan; i++)
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::ChainActive().Tip()->GetAncestor(::ChainActive().Tip()->nHeight - i)->nTime += 512; //Trick the MedianTimePast
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BOOST_CHECK(SequenceLocks(CTransaction(tx), flags, &prevheights, CreateBlockIndex(::ChainActive().Tip()->nHeight + 1))); // Sequence locks pass 512 seconds later
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BOOST_CHECK(SequenceLocks(CTransaction(tx), flags, prevheights, CreateBlockIndex(::ChainActive().Tip()->nHeight + 1))); // Sequence locks pass 512 seconds later
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for (int i = 0; i < CBlockIndex::nMedianTimeSpan; i++)
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::ChainActive().Tip()->GetAncestor(::ChainActive().Tip()->nHeight - i)->nTime -= 512; //undo tricked MTP
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@ -295,7 +295,7 @@ bool CheckSequenceLocks(const CTxMemPool& pool, const CTransaction& tx, int flag
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prevheights[txinIndex] = coin.nHeight;
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}
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}
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lockPair = CalculateSequenceLocks(tx, flags, &prevheights, index);
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lockPair = CalculateSequenceLocks(tx, flags, prevheights, index);
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if (lp) {
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lp->height = lockPair.first;
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lp->time = lockPair.second;
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@ -2147,7 +2147,7 @@ bool CChainState::ConnectBlock(const CBlock& block, BlockValidationState& state,
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prevheights[j] = view.AccessCoin(tx.vin[j].prevout).nHeight;
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}
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if (!SequenceLocks(tx, nLockTimeFlags, &prevheights, *pindex)) {
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if (!SequenceLocks(tx, nLockTimeFlags, prevheights, *pindex)) {
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LogPrintf("ERROR: %s: contains a non-BIP68-final transaction\n", __func__);
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return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-txns-nonfinal");
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}
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