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TxMemPool: Change mapTx to a boost::multi_index_container

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Indexes on:
- Tx Hash
- Fee Rate (fee-per-kb)
This commit is contained in:
Ashley Holman
2015-06-24 03:32:20 -05:00
committed by Suhas Daftuar
parent d5d1d2e65a
commit 34628a1807
5 changed files with 127 additions and 32 deletions
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52
src/txmempool.cpp
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@@ -32,6 +32,7 @@ CTxMemPoolEntry::CTxMemPoolEntry(const CTransaction& _tx, const CAmount& _nFee,
nTxSize = ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);
nModSize = tx.CalculateModifiedSize(nTxSize);
nUsageSize = RecursiveDynamicUsage(tx);
feeRate = CFeeRate(nFee, nTxSize);
}
CTxMemPoolEntry::CTxMemPoolEntry(const CTxMemPoolEntry& other)
@@ -96,8 +97,8 @@ bool CTxMemPool::addUnchecked(const uint256& hash, const CTxMemPoolEntry &entry,
// Used by main.cpp AcceptToMemoryPool(), which DOES do
// all the appropriate checks.
LOCK(cs);
mapTx[hash] = entry;
const CTransaction& tx = mapTx[hash].GetTx();
mapTx.insert(entry);
const CTransaction& tx = mapTx.find(hash)->GetTx();
for (unsigned int i = 0; i < tx.vin.size(); i++)
mapNextTx[tx.vin[i].prevout] = CInPoint(&tx, i);
nTransactionsUpdated++;
@@ -134,7 +135,7 @@ void CTxMemPool::remove(const CTransaction &origTx, std::list<CTransaction>& rem
txToRemove.pop_front();
if (!mapTx.count(hash))
continue;
const CTransaction& tx = mapTx[hash].GetTx();
const CTransaction& tx = mapTx.find(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));
@@ -147,8 +148,8 @@ void CTxMemPool::remove(const CTransaction &origTx, std::list<CTransaction>& rem
mapNextTx.erase(txin.prevout);
removed.push_back(tx);
totalTxSize -= mapTx[hash].GetTxSize();
cachedInnerUsage -= mapTx[hash].DynamicMemoryUsage();
totalTxSize -= mapTx.find(hash)->GetTxSize();
cachedInnerUsage -= mapTx.find(hash)->DynamicMemoryUsage();
mapTx.erase(hash);
nTransactionsUpdated++;
minerPolicyEstimator->removeTx(hash);
@@ -161,10 +162,10 @@ void CTxMemPool::removeCoinbaseSpends(const CCoinsViewCache *pcoins, unsigned in
// Remove transactions spending a coinbase which are now immature
LOCK(cs);
list<CTransaction> transactionsToRemove;
for (std::map<uint256, CTxMemPoolEntry>::const_iterator it = mapTx.begin(); it != mapTx.end(); it++) {
const CTransaction& tx = it->second.GetTx();
for (indexed_transaction_set::const_iterator it = mapTx.begin(); it != mapTx.end(); it++) {
const CTransaction& tx = it->GetTx();
BOOST_FOREACH(const CTxIn& txin, tx.vin) {
std::map<uint256, CTxMemPoolEntry>::const_iterator it2 = mapTx.find(txin.prevout.hash);
indexed_transaction_set::const_iterator it2 = mapTx.find(txin.prevout.hash);
if (it2 != mapTx.end())
continue;
const CCoins *coins = pcoins->AccessCoins(txin.prevout.hash);
@@ -209,8 +210,10 @@ void CTxMemPool::removeForBlock(const std::vector<CTransaction>& vtx, unsigned i
BOOST_FOREACH(const CTransaction& tx, vtx)
{
uint256 hash = tx.GetHash();
if (mapTx.count(hash))
entries.push_back(mapTx[hash]);
indexed_transaction_set::iterator i = mapTx.find(hash);
if (i != mapTx.end())
entries.push_back(*i);
}
BOOST_FOREACH(const CTransaction& tx, vtx)
{
@@ -247,17 +250,17 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
LOCK(cs);
list<const CTxMemPoolEntry*> waitingOnDependants;
for (std::map<uint256, CTxMemPoolEntry>::const_iterator it = mapTx.begin(); it != mapTx.end(); it++) {
for (indexed_transaction_set::const_iterator it = mapTx.begin(); it != mapTx.end(); it++) {
unsigned int i = 0;
checkTotal += it->second.GetTxSize();
innerUsage += it->second.DynamicMemoryUsage();
const CTransaction& tx = it->second.GetTx();
checkTotal += it->GetTxSize();
innerUsage += it->DynamicMemoryUsage();
const CTransaction& tx = it->GetTx();
bool fDependsWait = false;
BOOST_FOREACH(const CTxIn &txin, tx.vin) {
// Check that every mempool transaction's inputs refer to available coins, or other mempool tx's.
std::map<uint256, CTxMemPoolEntry>::const_iterator it2 = mapTx.find(txin.prevout.hash);
indexed_transaction_set::const_iterator it2 = mapTx.find(txin.prevout.hash);
if (it2 != mapTx.end()) {
const CTransaction& tx2 = it2->second.GetTx();
const CTransaction& tx2 = it2->GetTx();
assert(tx2.vout.size() > txin.prevout.n && !tx2.vout[txin.prevout.n].IsNull());
fDependsWait = true;
} else {
@@ -272,7 +275,7 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
i++;
}
if (fDependsWait)
waitingOnDependants.push_back(&it->second);
waitingOnDependants.push_back(&(*it));
else {
CValidationState state;
assert(CheckInputs(tx, state, mempoolDuplicate, false, 0, false, NULL));
@@ -296,8 +299,8 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
}
for (std::map<COutPoint, CInPoint>::const_iterator it = mapNextTx.begin(); it != mapNextTx.end(); it++) {
uint256 hash = it->second.ptx->GetHash();
map<uint256, CTxMemPoolEntry>::const_iterator it2 = mapTx.find(hash);
const CTransaction& tx = it2->second.GetTx();
indexed_transaction_set::const_iterator it2 = mapTx.find(hash);
const CTransaction& tx = it2->GetTx();
assert(it2 != mapTx.end());
assert(&tx == it->second.ptx);
assert(tx.vin.size() > it->second.n);
@@ -314,16 +317,16 @@ void CTxMemPool::queryHashes(vector<uint256>& vtxid)
LOCK(cs);
vtxid.reserve(mapTx.size());
for (map<uint256, CTxMemPoolEntry>::iterator mi = mapTx.begin(); mi != mapTx.end(); ++mi)
vtxid.push_back((*mi).first);
for (indexed_transaction_set::iterator mi = mapTx.begin(); mi != mapTx.end(); ++mi)
vtxid.push_back(mi->GetTx().GetHash());
}
bool CTxMemPool::lookup(uint256 hash, CTransaction& result) const
{
LOCK(cs);
map<uint256, CTxMemPoolEntry>::const_iterator i = mapTx.find(hash);
indexed_transaction_set::const_iterator i = mapTx.find(hash);
if (i == mapTx.end()) return false;
result = i->second.GetTx();
result = i->GetTx();
return true;
}
@@ -429,5 +432,6 @@ bool CCoinsViewMemPool::HaveCoins(const uint256 &txid) const {
size_t CTxMemPool::DynamicMemoryUsage() const {
LOCK(cs);
return memusage::DynamicUsage(mapTx) + memusage::DynamicUsage(mapNextTx) + memusage::DynamicUsage(mapDeltas) + cachedInnerUsage;
// Estimate the overhead of mapTx to be 6 pointers + an allocation, as no exact formula for boost::multi_index_contained is implemented.
return memusage::MallocUsage(sizeof(CTxMemPoolEntry) + 6 * sizeof(void*)) * mapTx.size() + memusage::DynamicUsage(mapNextTx) + memusage::DynamicUsage(mapDeltas) + cachedInnerUsage;
}