diff options
Diffstat (limited to 'src/policy/rbf.cpp')
-rw-r--r-- | src/policy/rbf.cpp | 88 |
1 files changed, 44 insertions, 44 deletions
diff --git a/src/policy/rbf.cpp b/src/policy/rbf.cpp index 1e03e2331a..8fe897dcea 100644 --- a/src/policy/rbf.cpp +++ b/src/policy/rbf.cpp @@ -13,7 +13,7 @@ RBFTransactionState IsRBFOptIn(const CTransaction& tx, const CTxMemPool& pool) { AssertLockHeld(pool.cs); - CTxMemPool::setEntries setAncestors; + CTxMemPool::setEntries ancestors; // First check the transaction itself. if (SignalsOptInRBF(tx)) { @@ -31,9 +31,9 @@ RBFTransactionState IsRBFOptIn(const CTransaction& tx, const CTxMemPool& pool) 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); + pool.CalculateMemPoolAncestors(entry, ancestors, noLimit, noLimit, noLimit, noLimit, dummy, false); - for (CTxMemPool::txiter it : setAncestors) { + for (CTxMemPool::txiter it : ancestors) { if (SignalsOptInRBF(it->GetTx())) { return RBFTransactionState::REPLACEABLE_BIP125; } @@ -48,43 +48,43 @@ RBFTransactionState IsRBFOptInEmptyMempool(const CTransaction& tx) } std::optional<std::string> GetEntriesForConflicts(const CTransaction& tx, - CTxMemPool& m_pool, - const CTxMemPool::setEntries& setIterConflicting, - CTxMemPool::setEntries& allConflicting) + CTxMemPool& pool, + const CTxMemPool::setEntries& iters_conflicting, + CTxMemPool::setEntries& all_conflicts) { - AssertLockHeld(m_pool.cs); - const uint256 hash = tx.GetHash(); + AssertLockHeld(pool.cs); + const uint256 txid = tx.GetHash(); uint64_t nConflictingCount = 0; - for (const auto& mi : setIterConflicting) { + for (const auto& mi : iters_conflicting) { nConflictingCount += mi->GetCountWithDescendants(); // This potentially overestimates the number of actual descendants // but we just want to be conservative to avoid doing too much // work. if (nConflictingCount > MAX_BIP125_REPLACEMENT_CANDIDATES) { return strprintf("rejecting replacement %s; too many potential replacements (%d > %d)\n", - hash.ToString(), + txid.ToString(), nConflictingCount, MAX_BIP125_REPLACEMENT_CANDIDATES); } } // If not too many to replace, then calculate the set of // transactions that would have to be evicted - for (CTxMemPool::txiter it : setIterConflicting) { - m_pool.CalculateDescendants(it, allConflicting); + for (CTxMemPool::txiter it : iters_conflicting) { + pool.CalculateDescendants(it, all_conflicts); } return std::nullopt; } std::optional<std::string> HasNoNewUnconfirmed(const CTransaction& tx, - const CTxMemPool& m_pool, - const CTxMemPool::setEntries& setIterConflicting) + const CTxMemPool& pool, + const CTxMemPool::setEntries& iters_conflicting) { - AssertLockHeld(m_pool.cs); - std::set<uint256> setConflictsParents; - for (const auto& mi : setIterConflicting) { + AssertLockHeld(pool.cs); + std::set<uint256> parents_of_conflicts; + for (const auto& mi : iters_conflicting) { for (const CTxIn &txin : mi->GetTx().vin) { - setConflictsParents.insert(txin.prevout.hash); + parents_of_conflicts.insert(txin.prevout.hash); } } @@ -99,12 +99,12 @@ std::optional<std::string> HasNoNewUnconfirmed(const CTransaction& tx, // this may break the CalculateMempoolAncestors RBF relaxation, // above. See the comment above the first CalculateMempoolAncestors // call for more info. - if (!setConflictsParents.count(tx.vin[j].prevout.hash)) + if (!parents_of_conflicts.count(tx.vin[j].prevout.hash)) { // Rather than check the UTXO set - potentially expensive - // it's cheaper to just check if the new input refers to a // tx that's in the mempool. - if (m_pool.exists(tx.vin[j].prevout.hash)) { + if (pool.exists(tx.vin[j].prevout.hash)) { return strprintf("replacement %s adds unconfirmed input, idx %d", tx.GetHash().ToString(), j); } @@ -113,14 +113,14 @@ std::optional<std::string> HasNoNewUnconfirmed(const CTransaction& tx, return std::nullopt; } -std::optional<std::string> EntriesAndTxidsDisjoint(const CTxMemPool::setEntries& setAncestors, - const std::set<uint256>& setConflicts, +std::optional<std::string> EntriesAndTxidsDisjoint(const CTxMemPool::setEntries& ancestors, + const std::set<uint256>& direct_conflicts, const uint256& txid) { - for (CTxMemPool::txiter ancestorIt : setAncestors) + for (CTxMemPool::txiter ancestorIt : ancestors) { const uint256 &hashAncestor = ancestorIt->GetTx().GetHash(); - if (setConflicts.count(hashAncestor)) + if (direct_conflicts.count(hashAncestor)) { return strprintf("%s spends conflicting transaction %s", txid.ToString(), @@ -130,11 +130,11 @@ std::optional<std::string> EntriesAndTxidsDisjoint(const CTxMemPool::setEntries& return std::nullopt; } -std::optional<std::string> PaysMoreThanConflicts(const CTxMemPool::setEntries& setIterConflicting, - CFeeRate newFeeRate, - const uint256& hash) +std::optional<std::string> PaysMoreThanConflicts(const CTxMemPool::setEntries& iters_conflicting, + CFeeRate replacement_feerate, + const uint256& txid) { - for (const auto& mi : setIterConflicting) { + for (const auto& mi : iters_conflicting) { // Don't allow the replacement to reduce the feerate of the // mempool. // @@ -149,41 +149,41 @@ std::optional<std::string> PaysMoreThanConflicts(const CTxMemPool::setEntries& s // mean high feerate children are ignored when deciding whether // or not to replace, we do require the replacement to pay more // overall fees too, mitigating most cases. - CFeeRate oldFeeRate(mi->GetModifiedFee(), mi->GetTxSize()); - if (newFeeRate <= oldFeeRate) + CFeeRate original_feerate(mi->GetModifiedFee(), mi->GetTxSize()); + if (replacement_feerate <= original_feerate) { return strprintf("rejecting replacement %s; new feerate %s <= old feerate %s", - hash.ToString(), - newFeeRate.ToString(), - oldFeeRate.ToString()); + txid.ToString(), + replacement_feerate.ToString(), + original_feerate.ToString()); } } return std::nullopt; } -std::optional<std::string> PaysForRBF(CAmount nConflictingFees, - CAmount nModifiedFees, - size_t nSize, - const uint256& hash) +std::optional<std::string> PaysForRBF(CAmount original_fees, + CAmount replacement_fees, + size_t replacement_vsize, + const uint256& txid) { // The replacement must pay greater fees than the transactions it // replaces - if we did the bandwidth used by those conflicting // transactions would not be paid for. - if (nModifiedFees < nConflictingFees) + if (replacement_fees < original_fees) { return strprintf("rejecting replacement %s, less fees than conflicting txs; %s < %s", - hash.ToString(), FormatMoney(nModifiedFees), FormatMoney(nConflictingFees)); + txid.ToString(), FormatMoney(replacement_fees), FormatMoney(original_fees)); } // Finally in addition to paying more fees than the conflicts the // new transaction must pay for its own bandwidth. - CAmount nDeltaFees = nModifiedFees - nConflictingFees; - if (nDeltaFees < ::incrementalRelayFee.GetFee(nSize)) + CAmount additional_fees = replacement_fees - original_fees; + if (additional_fees < ::incrementalRelayFee.GetFee(replacement_vsize)) { return strprintf("rejecting replacement %s, not enough additional fees to relay; %s < %s", - hash.ToString(), - FormatMoney(nDeltaFees), - FormatMoney(::incrementalRelayFee.GetFee(nSize))); + txid.ToString(), + FormatMoney(additional_fees), + FormatMoney(::incrementalRelayFee.GetFee(replacement_vsize))); } return std::nullopt; } |