/** Before calling removeUnchecked for a given transaction,
* UpdateForRemoveFromMempool must be called on the entire (dependent) set
* of transactions being removed at the same time. We use each
* CTxMemPoolEntry's setMemPoolParents in order to walk ancestors of a
* given transaction that is removed, so we can't remove intermediate
* transactions in a chain before we've updated all the state for the
* removal.
*/
private void RemoveUnchecked(TxMempoolEntry it)
{
var hash = it.TransactionHash;
foreach (var txin in it.Transaction.Inputs)
{
MapNextTx.Remove(MapNextTx.FirstOrDefault(w => w.OutPoint == txin.PrevOut));
}
if (vTxHashes.Any())
{
vTxHashes.Remove(it);
//vTxHashes[it] = std::move(vTxHashes.back());
//vTxHashes[it].second->vTxHashesIdx = it->vTxHashesIdx;
//vTxHashes.pop_back();
//if (vTxHashes.size() * 2 < vTxHashes.capacity())
// vTxHashes.shrink_to_fit();
}
//else
// vTxHashes.clear();
totalTxSize -= it.GetTxSize();
cachedInnerUsage -= it.DynamicMemoryUsage();
cachedInnerUsage -= mapLinks[it]?.Parents?.Sum(p => p.DynamicMemoryUsage()) ?? 0 + mapLinks[it]?.Children?.Sum(p => p.DynamicMemoryUsage()) ?? 0;
mapLinks.Remove(it);
MapTx.Remove(it);
nTransactionsUpdated++;
MinerPolicyEstimator.RemoveTx(hash);
}
/**
* Called when a block is connected. Removes from mempool and updates the miner fee estimator.
*/
public void RemoveForBlock(IEnumerable <Transaction> vtx, int blockHeight)
{
var entries = new List <TxMempoolEntry>();
foreach (var tx in vtx)
{
uint256 hash = tx.GetHash();
var entry = this.MapTx.TryGet(hash);
if (entry != null)
{
entries.Add(entry);
}
}
// Before the txs in the new block have been removed from the mempool, update policy estimates
MinerPolicyEstimator.ProcessBlock(blockHeight, entries);
foreach (var tx in vtx)
{
uint256 hash = tx.GetHash();
var entry = this.MapTx.TryGet(hash);
if (entry != null)
{
SetEntries stage = new SetEntries();
stage.Add(entry);
RemoveStaged(stage, true);
}
RemoveConflicts(tx);
ClearPrioritisation(tx.GetHash());
}
lastRollingFeeUpdate = this.TimeProvider.GetTime();
blockSinceLastRollingFeeBump = true;
}
