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Get the set of now-uncacheable-txn from CTxMemPool::TrimToSize

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This commit is contained in:
Matt Corallo 2015-10-21 17:44:00 -07:00
parent 74d0f90262
commit b2e74bd292
2 changed files with 25 additions and 4 deletions
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22
src/txmempool.cpp
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@ -944,7 +944,7 @@ void CTxMemPool::trackPackageRemoved(const CFeeRate& rate) {
}
}
void CTxMemPool::TrimToSize(size_t sizelimit) {
void CTxMemPool::TrimToSize(size_t sizelimit, std::vector<uint256>* pvNoSpendsRemaining) {
LOCK(cs);
unsigned nTxnRemoved = 0;
@ -963,8 +963,26 @@ void CTxMemPool::TrimToSize(size_t sizelimit) {
setEntries stage;
CalculateDescendants(mapTx.project<0>(it), stage);
RemoveStaged(stage);
nTxnRemoved += stage.size();
std::vector<CTransaction> txn;
if (pvNoSpendsRemaining) {
txn.reserve(stage.size());
BOOST_FOREACH(txiter it, stage)
txn.push_back(it->GetTx());
}
RemoveStaged(stage);
if (pvNoSpendsRemaining) {
BOOST_FOREACH(const CTransaction& tx, txn) {
BOOST_FOREACH(const CTxIn& txin, tx.vin) {
if (exists(txin.prevout.hash))
continue;
std::map<COutPoint, CInPoint>::iterator it = mapNextTx.lower_bound(COutPoint(txin.prevout.hash, 0));
if (it == mapNextTx.end() || it->first.hash != txin.prevout.hash)
pvNoSpendsRemaining->push_back(txin.prevout.hash);
}
}
}
}
if (maxFeeRateRemoved > CFeeRate(0))

7
src/txmempool.h
View file

@ -483,8 +483,11 @@ public:
*/
CFeeRate GetMinFee(size_t sizelimit) const;
/** Remove transactions from the mempool until its dynamic size is <= sizelimit. */
void TrimToSize(size_t sizelimit);
/** Remove transactions from the mempool until its dynamic size is <= sizelimit.
* pvNoSpendsRemaining, if set, will be populated with the list of transactions
* which are not in mempool which no longer have any spends in this mempool.
*/
void TrimToSize(size_t sizelimit, std::vector<uint256>* pvNoSpendsRemaining=NULL);
/** Expire all transaction (and their dependencies) in the mempool older than time. Return the number of removed transactions. */
int Expire(int64_t time);