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Make CTxMemPool::remove more effecient by avoiding recursion

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This commit is contained in:
Matt Corallo 2014-11-18 14:57:20 -08:00
parent b7b4318f3a
commit 7fd6219af7
1 changed files with 18 additions and 12 deletions
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30
src/txmempool.cpp
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@ -427,26 +427,32 @@ bool CTxMemPool::addUnchecked(const uint256& hash, const CTxMemPoolEntry &entry)
}
void CTxMemPool::remove(const CTransaction &tx, std::list<CTransaction>& removed, bool fRecursive)
void CTxMemPool::remove(const CTransaction &origTx, std::list<CTransaction>& removed, bool fRecursive)
{
// Remove transaction from memory pool
{
LOCK(cs);
uint256 hash = tx.GetHash();
if (fRecursive) {
for (unsigned int i = 0; i < tx.vout.size(); i++) {
std::map<COutPoint, CInPoint>::iterator it = mapNextTx.find(COutPoint(hash, i));
if (it == mapNextTx.end())
continue;
remove(*it->second.ptx, removed, true);
}
}
if (mapTx.count(hash))
std::deque<uint256> txToRemove;
txToRemove.push_back(origTx.GetHash());
while (!txToRemove.empty())
{
removed.push_front(tx);
uint256 hash = txToRemove.front();
txToRemove.pop_front();
if (!mapTx.count(hash))
continue;
const CTransaction& tx = mapTx[hash].GetTx();
if (fRecursive) {
for (unsigned int i = 0; i < tx.vout.size(); i++) {
std::map<COutPoint, CInPoint>::iterator it = mapNextTx.find(COutPoint(hash, i));
if (it == mapNextTx.end())
continue;
txToRemove.push_back(it->second.ptx->GetHash());
}
}
BOOST_FOREACH(const CTxIn& txin, tx.vin)
mapNextTx.erase(txin.prevout);
removed.push_back(tx);
totalTxSize -= mapTx[hash].GetTxSize();
mapTx.erase(hash);
nTransactionsUpdated++;