RBFTransactionState IsRBFOptIn(const CTransaction &tx, CTxMemPool &pool) { AssertLockHeld(pool.cs); CTxMemPool::setEntries setAncestors; // First check the transaction itself. if (SignalsOptInRBF(tx)) { return RBF_TRANSACTIONSTATE_REPLACEABLE_BIP125; } // If this transaction is not in our mempool, then we can't be sure // we will know about all its inputs. if (!pool.exists(tx.GetHash())) { return RBF_TRANSACTIONSTATE_UNKNOWN; } // If all the inputs have nSequence >= maxint-1, it still might be // signaled for RBF if any unconfirmed parents have signaled. uint64_t noLimit = std::numeric_limits<uint64_t>::max(); std::string dummy; CTxMemPoolEntry entry = *pool.mapTx.find(tx.GetHash()); pool.CalculateMemPoolAncestors(entry, setAncestors, noLimit, noLimit, noLimit, noLimit, dummy, false); BOOST_FOREACH(CTxMemPool::txiter it, setAncestors) { if (SignalsOptInRBF(it->GetTx())) { return RBF_TRANSACTIONSTATE_REPLACEABLE_BIP125; } } return RBF_TRANSACTIONSTATE_FINAL; }
bool IsRBFOptIn(const CTxMemPoolEntry &entry, CTxMemPool &pool) { AssertLockHeld(pool.cs); CTxMemPool::setEntries setAncestors; // First check the transaction itself. if (SignalsOptInRBF(entry.GetTx())) { return true; } // If this transaction is not in our mempool, then we can't be sure // we will know about all its inputs. if (!pool.exists(entry.GetTx().GetHash())) { throw std::runtime_error("Cannot determine RBF opt-in signal for non-mempool transaction\n"); } // If all the inputs have nSequence >= maxint-1, it still might be // signaled for RBF if any unconfirmed parents have signaled. uint64_t noLimit = std::numeric_limits<uint64_t>::max(); std::string dummy; pool.CalculateMemPoolAncestors(entry, setAncestors, noLimit, noLimit, noLimit, noLimit, dummy, false); BOOST_FOREACH(CTxMemPool::txiter it, setAncestors) { if (SignalsOptInRBF(it->GetTx())) { return true; } } return false; }