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New class CTxMemPool, encapsulating TX memory pool data members

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This commit is contained in:
Jeff Garzik 2012-04-13 16:03:09 -04:00 committed by Jeff Garzik
parent 5a701eb7ea
commit 235507ae48
2 changed files with 37 additions and 30 deletions
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59
src/main.cpp
View file

@ -23,10 +23,8 @@ set<CWallet*> setpwalletRegistered;
CCriticalSection cs_main;
static map<uint256, CTransaction> mapTransactions;
CCriticalSection cs_mapTransactions;
static CTxMemPool mempool;
unsigned int nTransactionsUpdated = 0;
map<COutPoint, CInPoint> mapNextTx;
map<uint256, CBlockIndex*> mapBlockIndex;
uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
@ -474,8 +472,8 @@ bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMi
// Do we already have it?
uint256 hash = GetHash();
{
LOCK(cs_mapTransactions);
if (mapTransactions.count(hash))
LOCK(mempool.cs);
if (mempool.mapTx.count(hash))
return false;
}
if (fCheckInputs)
@ -487,7 +485,7 @@ bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMi
for (int i = 0; i < vin.size(); i++)
{
COutPoint outpoint = vin[i].prevout;
if (mapNextTx.count(outpoint))
if (mempool.mapNextTx.count(outpoint))
{
// Disable replacement feature for now
return false;
@ -495,7 +493,7 @@ bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMi
// Allow replacing with a newer version of the same transaction
if (i != 0)
return false;
ptxOld = mapNextTx[outpoint].ptx;
ptxOld = mempool.mapNextTx[outpoint].ptx;
if (ptxOld->IsFinal())
return false;
if (!IsNewerThan(*ptxOld))
@ -503,7 +501,7 @@ bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMi
for (int i = 0; i < vin.size(); i++)
{
COutPoint outpoint = vin[i].prevout;
if (!mapNextTx.count(outpoint) || mapNextTx[outpoint].ptx != ptxOld)
if (!mempool.mapNextTx.count(outpoint) || mempool.mapNextTx[outpoint].ptx != ptxOld)
return false;
}
break;
@ -574,7 +572,7 @@ bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMi
// Store transaction in memory
{
LOCK(cs_mapTransactions);
LOCK(mempool.cs);
if (ptxOld)
{
printf("AcceptToMemoryPool() : replacing tx %s with new version\n", ptxOld->GetHash().ToString().c_str());
@ -596,15 +594,15 @@ uint64 nPooledTx = 0;
bool CTransaction::AddToMemoryPoolUnchecked()
{
printf("AcceptToMemoryPoolUnchecked(): size %lu\n", mapTransactions.size());
printf("AcceptToMemoryPoolUnchecked(): size %lu\n", mempool.mapTx.size());
// Add to memory pool without checking anything. Don't call this directly,
// call AcceptToMemoryPool to properly check the transaction first.
{
LOCK(cs_mapTransactions);
LOCK(mempool.cs);
uint256 hash = GetHash();
mapTransactions[hash] = *this;
mempool.mapTx[hash] = *this;
for (int i = 0; i < vin.size(); i++)
mapNextTx[vin[i].prevout] = CInPoint(&mapTransactions[hash], i);
mempool.mapNextTx[vin[i].prevout] = CInPoint(&mempool.mapTx[hash], i);
nTransactionsUpdated++;
++nPooledTx;
}
@ -616,13 +614,13 @@ bool CTransaction::RemoveFromMemoryPool()
{
// Remove transaction from memory pool
{
LOCK(cs_mapTransactions);
LOCK(mempool.cs);
uint256 hash = GetHash();
if (mapTransactions.count(hash))
if (mempool.mapTx.count(hash))
{
BOOST_FOREACH(const CTxIn& txin, vin)
mapNextTx.erase(txin.prevout);
mapTransactions.erase(hash);
mempool.mapNextTx.erase(txin.prevout);
mempool.mapTx.erase(hash);
nTransactionsUpdated++;
--nPooledTx;
}
@ -695,14 +693,14 @@ bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs)
{
{
LOCK(cs_mapTransactions);
LOCK(mempool.cs);
// Add previous supporting transactions first
BOOST_FOREACH(CMerkleTx& tx, vtxPrev)
{
if (!tx.IsCoinBase())
{
uint256 hash = tx.GetHash();
if (!mapTransactions.count(hash) && !txdb.ContainsTx(hash))
if (!mempool.mapTx.count(hash) && !txdb.ContainsTx(hash))
tx.AcceptToMemoryPool(txdb, fCheckInputs);
}
}
@ -1017,10 +1015,10 @@ bool CTransaction::FetchInputs(CTxDB& txdb, const map<uint256, CTxIndex>& mapTes
{
// Get prev tx from single transactions in memory
{
LOCK(cs_mapTransactions);
if (!mapTransactions.count(prevout.hash))
return error("FetchInputs() : %s mapTransactions prev not found %s", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
txPrev = mapTransactions[prevout.hash];
LOCK(mempool.cs);
if (!mempool.mapTx.count(prevout.hash))
return error("FetchInputs() : %s mempool.mapTx prev not found %s", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
txPrev = mempool.mapTx[prevout.hash];
}
if (!fFound)
txindex.vSpent.resize(txPrev.vout.size());
@ -1183,15 +1181,15 @@ bool CTransaction::ClientConnectInputs()
// Take over previous transactions' spent pointers
{
LOCK(cs_mapTransactions);
LOCK(mempool.cs);
int64 nValueIn = 0;
for (int i = 0; i < vin.size(); i++)
{
// Get prev tx from single transactions in memory
COutPoint prevout = vin[i].prevout;
if (!mapTransactions.count(prevout.hash))
if (!mempool.mapTx.count(prevout.hash))
return false;
CTransaction& txPrev = mapTransactions[prevout.hash];
CTransaction& txPrev = mempool.mapTx[prevout.hash];
if (prevout.n >= txPrev.vout.size())
return false;
@ -1200,7 +1198,8 @@ bool CTransaction::ClientConnectInputs()
if (!VerifySignature(txPrev, *this, i, true, 0))
return error("ConnectInputs() : VerifySignature failed");
///// this is redundant with the mapNextTx stuff, not sure which I want to get rid of
///// this is redundant with the mempool.mapNextTx stuff,
///// not sure which I want to get rid of
///// this has to go away now that posNext is gone
// // Check for conflicts
// if (!txPrev.vout[prevout.n].posNext.IsNull())
@ -2135,7 +2134,7 @@ bool static AlreadyHave(CTxDB& txdb, const CInv& inv)
{
switch (inv.type)
{
case MSG_TX: return mapTransactions.count(inv.hash) || mapOrphanTransactions.count(inv.hash) || txdb.ContainsTx(inv.hash);
case MSG_TX: return mempool.mapTx.count(inv.hash) || mapOrphanTransactions.count(inv.hash) || txdb.ContainsTx(inv.hash);
case MSG_BLOCK: return mapBlockIndex.count(inv.hash) || mapOrphanBlocks.count(inv.hash);
}
// Don't know what it is, just say we already got one
@ -3093,14 +3092,14 @@ CBlock* CreateNewBlock(CReserveKey& reservekey)
// Collect memory pool transactions into the block
int64 nFees = 0;
{
LOCK2(cs_main, cs_mapTransactions);
LOCK2(cs_main, mempool.cs);
CTxDB txdb("r");
// Priority order to process transactions
list<COrphan> vOrphan; // list memory doesn't move
map<uint256, vector<COrphan*> > mapDependers;
multimap<double, CTransaction*> mapPriority;
for (map<uint256, CTransaction>::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi)
for (map<uint256, CTransaction>::iterator mi = mempool.mapTx.begin(); mi != mempool.mapTx.end(); ++mi)
{
CTransaction& tx = (*mi).second;
if (tx.IsCoinBase() || !tx.IsFinal())

8
src/main.h
View file

@ -1608,4 +1608,12 @@ public:
bool ProcessAlert();
};
class CTxMemPool
{
public:
mutable CCriticalSection cs;
std::map<uint256, CTransaction> mapTx;
std::map<COutPoint, CInPoint> mapNextTx;
};
#endif