diff options
Diffstat (limited to 'src/txmempool.cpp')
-rw-r--r-- | src/txmempool.cpp | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/src/txmempool.cpp b/src/txmempool.cpp index 65c8b4ea60..b2417190cf 100644 --- a/src/txmempool.cpp +++ b/src/txmempool.cpp @@ -14,7 +14,9 @@ #include <policy/policy.h> #include <policy/settings.h> #include <reverse_iterator.h> +#include <util/check.h> #include <util/moneystr.h> +#include <util/overflow.h> #include <util/system.h> #include <util/time.h> #include <validationinterface.h> @@ -82,6 +84,7 @@ CTxMemPoolEntry::CTxMemPoolEntry(const CTransactionRef& tx, CAmount fee, entryHeight{entry_height}, spendsCoinbase{spends_coinbase}, sigOpCost{sigops_cost}, + m_modified_fee{nFee}, lockPoints{lp}, nSizeWithDescendants{GetTxSize()}, nModFeesWithDescendants{nFee}, @@ -89,11 +92,11 @@ CTxMemPoolEntry::CTxMemPoolEntry(const CTransactionRef& tx, CAmount fee, nModFeesWithAncestors{nFee}, nSigOpCostWithAncestors{sigOpCost} {} -void CTxMemPoolEntry::UpdateFeeDelta(CAmount newFeeDelta) +void CTxMemPoolEntry::UpdateModifiedFee(CAmount fee_diff) { - nModFeesWithDescendants += newFeeDelta - feeDelta; - nModFeesWithAncestors += newFeeDelta - feeDelta; - feeDelta = newFeeDelta; + nModFeesWithDescendants = SaturatingAdd(nModFeesWithDescendants, fee_diff); + nModFeesWithAncestors = SaturatingAdd(nModFeesWithAncestors, fee_diff); + m_modified_fee = SaturatingAdd(m_modified_fee, fee_diff); } void CTxMemPoolEntry::UpdateLockPoints(const LockPoints& lp) @@ -435,7 +438,7 @@ void CTxMemPoolEntry::UpdateDescendantState(int64_t modifySize, CAmount modifyFe { nSizeWithDescendants += modifySize; assert(int64_t(nSizeWithDescendants) > 0); - nModFeesWithDescendants += modifyFee; + nModFeesWithDescendants = SaturatingAdd(nModFeesWithDescendants, modifyFee); nCountWithDescendants += modifyCount; assert(int64_t(nCountWithDescendants) > 0); } @@ -444,7 +447,7 @@ void CTxMemPoolEntry::UpdateAncestorState(int64_t modifySize, CAmount modifyFee, { nSizeWithAncestors += modifySize; assert(int64_t(nSizeWithAncestors) > 0); - nModFeesWithAncestors += modifyFee; + nModFeesWithAncestors = SaturatingAdd(nModFeesWithAncestors, modifyFee); nCountWithAncestors += modifyCount; assert(int64_t(nCountWithAncestors) > 0); nSigOpCostWithAncestors += modifySigOps; @@ -483,8 +486,10 @@ void CTxMemPool::addUnchecked(const CTxMemPoolEntry &entry, setEntries &setAnces // Update transaction for any feeDelta created by PrioritiseTransaction CAmount delta{0}; ApplyDelta(entry.GetTx().GetHash(), delta); + // The following call to UpdateModifiedFee assumes no previous fee modifications + Assume(entry.GetFee() == entry.GetModifiedFee()); if (delta) { - mapTx.modify(newit, [&delta](CTxMemPoolEntry& e) { e.UpdateFeeDelta(delta); }); + mapTx.modify(newit, [&delta](CTxMemPoolEntry& e) { e.UpdateModifiedFee(delta); }); } // Update cachedInnerUsage to include contained transaction's usage. @@ -917,10 +922,10 @@ void CTxMemPool::PrioritiseTransaction(const uint256& hash, const CAmount& nFeeD { LOCK(cs); CAmount &delta = mapDeltas[hash]; - delta += nFeeDelta; + delta = SaturatingAdd(delta, nFeeDelta); txiter it = mapTx.find(hash); if (it != mapTx.end()) { - mapTx.modify(it, [&delta](CTxMemPoolEntry& e) { e.UpdateFeeDelta(delta); }); + mapTx.modify(it, [&nFeeDelta](CTxMemPoolEntry& e) { e.UpdateModifiedFee(nFeeDelta); }); // Now update all ancestors' modified fees with descendants setEntries setAncestors; uint64_t nNoLimit = std::numeric_limits<uint64_t>::max(); |