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-rw-r--r--src/test/mempool_tests.cpp104
-rw-r--r--src/txmempool.cpp4
-rw-r--r--src/txmempool.h32
3 files changed, 137 insertions, 3 deletions
diff --git a/src/test/mempool_tests.cpp b/src/test/mempool_tests.cpp
index ebdf7dbaa2..c8b43df26c 100644
--- a/src/test/mempool_tests.cpp
+++ b/src/test/mempool_tests.cpp
@@ -317,6 +317,110 @@ BOOST_AUTO_TEST_CASE(MempoolIndexingTest)
CheckSort<mining_score>(pool, sortedOrder);
}
+BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest)
+{
+ CTxMemPool pool(CFeeRate(0));
+ TestMemPoolEntryHelper entry;
+ entry.hadNoDependencies = true;
+
+ /* 3rd highest fee */
+ CMutableTransaction tx1 = CMutableTransaction();
+ tx1.vout.resize(1);
+ tx1.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
+ tx1.vout[0].nValue = 10 * COIN;
+ pool.addUnchecked(tx1.GetHash(), entry.Fee(10000LL).Priority(10.0).FromTx(tx1));
+
+ /* highest fee */
+ CMutableTransaction tx2 = CMutableTransaction();
+ tx2.vout.resize(1);
+ tx2.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
+ tx2.vout[0].nValue = 2 * COIN;
+ pool.addUnchecked(tx2.GetHash(), entry.Fee(20000LL).Priority(9.0).FromTx(tx2));
+ uint64_t tx2Size = ::GetSerializeSize(tx2, SER_NETWORK, PROTOCOL_VERSION);
+
+ /* lowest fee */
+ CMutableTransaction tx3 = CMutableTransaction();
+ tx3.vout.resize(1);
+ tx3.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
+ tx3.vout[0].nValue = 5 * COIN;
+ pool.addUnchecked(tx3.GetHash(), entry.Fee(0LL).Priority(100.0).FromTx(tx3));
+
+ /* 2nd highest fee */
+ CMutableTransaction tx4 = CMutableTransaction();
+ tx4.vout.resize(1);
+ tx4.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
+ tx4.vout[0].nValue = 6 * COIN;
+ pool.addUnchecked(tx4.GetHash(), entry.Fee(15000LL).Priority(1.0).FromTx(tx4));
+
+ /* equal fee rate to tx1, but newer */
+ CMutableTransaction tx5 = CMutableTransaction();
+ tx5.vout.resize(1);
+ tx5.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
+ tx5.vout[0].nValue = 11 * COIN;
+ pool.addUnchecked(tx5.GetHash(), entry.Fee(10000LL).FromTx(tx5));
+ BOOST_CHECK_EQUAL(pool.size(), 5);
+
+ std::vector<std::string> sortedOrder;
+ sortedOrder.resize(5);
+ sortedOrder[0] = tx2.GetHash().ToString(); // 20000
+ sortedOrder[1] = tx4.GetHash().ToString(); // 15000
+ // tx1 and tx5 are both 10000
+ // Ties are broken by hash, not timestamp, so determine which
+ // hash comes first.
+ if (tx1.GetHash() < tx5.GetHash()) {
+ sortedOrder[2] = tx1.GetHash().ToString();
+ sortedOrder[3] = tx5.GetHash().ToString();
+ } else {
+ sortedOrder[2] = tx5.GetHash().ToString();
+ sortedOrder[3] = tx1.GetHash().ToString();
+ }
+ sortedOrder[4] = tx3.GetHash().ToString(); // 0
+
+ CheckSort<ancestor_score>(pool, sortedOrder);
+
+ /* low fee parent with high fee child */
+ /* tx6 (0) -> tx7 (high) */
+ CMutableTransaction tx6 = CMutableTransaction();
+ tx6.vout.resize(1);
+ tx6.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
+ tx6.vout[0].nValue = 20 * COIN;
+ uint64_t tx6Size = ::GetSerializeSize(tx6, SER_NETWORK, PROTOCOL_VERSION);
+
+ pool.addUnchecked(tx6.GetHash(), entry.Fee(0LL).FromTx(tx6));
+ BOOST_CHECK_EQUAL(pool.size(), 6);
+ sortedOrder.push_back(tx6.GetHash().ToString());
+ CheckSort<ancestor_score>(pool, sortedOrder);
+
+ CMutableTransaction tx7 = CMutableTransaction();
+ tx7.vin.resize(1);
+ tx7.vin[0].prevout = COutPoint(tx6.GetHash(), 0);
+ tx7.vin[0].scriptSig = CScript() << OP_11;
+ tx7.vout.resize(1);
+ tx7.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
+ tx7.vout[0].nValue = 10 * COIN;
+ uint64_t tx7Size = ::GetSerializeSize(tx7, SER_NETWORK, PROTOCOL_VERSION);
+
+ /* set the fee to just below tx2's feerate when including ancestor */
+ CAmount fee = (20000/tx2Size)*(tx7Size + tx6Size) - 1;
+
+ //CTxMemPoolEntry entry7(tx7, fee, 2, 10.0, 1, true);
+ pool.addUnchecked(tx7.GetHash(), entry.Fee(fee).FromTx(tx7));
+ BOOST_CHECK_EQUAL(pool.size(), 7);
+ sortedOrder.insert(sortedOrder.begin()+1, tx7.GetHash().ToString());
+ CheckSort<ancestor_score>(pool, sortedOrder);
+
+ /* after tx6 is mined, tx7 should move up in the sort */
+ std::vector<CTransaction> vtx;
+ vtx.push_back(tx6);
+ std::list<CTransaction> dummy;
+ pool.removeForBlock(vtx, 1, dummy, false);
+
+ sortedOrder.erase(sortedOrder.begin()+1);
+ sortedOrder.pop_back();
+ sortedOrder.insert(sortedOrder.begin(), tx7.GetHash().ToString());
+ CheckSort<ancestor_score>(pool, sortedOrder);
+}
+
BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
{
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index f7961a6b80..48fbe56023 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -866,8 +866,8 @@ bool CCoinsViewMemPool::HaveCoins(const uint256 &txid) const {
size_t CTxMemPool::DynamicMemoryUsage() const {
LOCK(cs);
- // Estimate the overhead of mapTx to be 12 pointers + an allocation, as no exact formula for boost::multi_index_contained is implemented.
- return memusage::MallocUsage(sizeof(CTxMemPoolEntry) + 12 * sizeof(void*)) * mapTx.size() + memusage::DynamicUsage(mapNextTx) + memusage::DynamicUsage(mapDeltas) + memusage::DynamicUsage(mapLinks) + cachedInnerUsage;
+ // Estimate the overhead of mapTx to be 15 pointers + an allocation, as no exact formula for boost::multi_index_contained is implemented.
+ return memusage::MallocUsage(sizeof(CTxMemPoolEntry) + 15 * sizeof(void*)) * mapTx.size() + memusage::DynamicUsage(mapNextTx) + memusage::DynamicUsage(mapDeltas) + memusage::DynamicUsage(mapLinks) + cachedInnerUsage;
}
void CTxMemPool::RemoveStaged(setEntries &stage, bool updateDescendants) {
diff --git a/src/txmempool.h b/src/txmempool.h
index 0db3d5bd27..3f80a6ec24 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -244,10 +244,34 @@ public:
}
};
+class CompareTxMemPoolEntryByAncestorFee
+{
+public:
+ bool operator()(const CTxMemPoolEntry& a, const CTxMemPoolEntry& b)
+ {
+ double aFees = a.GetModFeesWithAncestors();
+ double aSize = a.GetSizeWithAncestors();
+
+ double bFees = b.GetModFeesWithAncestors();
+ double bSize = b.GetSizeWithAncestors();
+
+ // Avoid division by rewriting (a/b > c/d) as (a*d > c*b).
+ double f1 = aFees * bSize;
+ double f2 = aSize * bFees;
+
+ if (f1 == f2) {
+ return a.GetTx().GetHash() < b.GetTx().GetHash();
+ }
+
+ return f1 > f2;
+ }
+};
+
// Multi_index tag names
struct descendant_score {};
struct entry_time {};
struct mining_score {};
+struct ancestor_score {};
class CBlockPolicyEstimator;
@@ -380,12 +404,18 @@ public:
boost::multi_index::tag<entry_time>,
boost::multi_index::identity<CTxMemPoolEntry>,
CompareTxMemPoolEntryByEntryTime
- >,
+ >,
// sorted by score (for mining prioritization)
boost::multi_index::ordered_unique<
boost::multi_index::tag<mining_score>,
boost::multi_index::identity<CTxMemPoolEntry>,
CompareTxMemPoolEntryByScore
+ >,
+ // sorted by fee rate with ancestors
+ boost::multi_index::ordered_non_unique<
+ boost::multi_index::tag<ancestor_score>,
+ boost::multi_index::identity<CTxMemPoolEntry>,
+ CompareTxMemPoolEntryByAncestorFee
>
>
> indexed_transaction_set;
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-13 10:59:15 +0000