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Support -checkmempool=N, which runs checks on average once every N transactions

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This commit is contained in:
Pieter Wuille 2015-10-07 23:34:55 +02:00
parent c6de5cc886
commit ab1f56072a
3 changed files with 12 additions and 6 deletions
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5
src/init.cpp
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@ -836,7 +836,10 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
InitWarning(_("Warning: Unsupported argument -benchmark ignored, use -debug=bench."));
// Checkmempool and checkblockindex default to true in regtest mode
mempool.setSanityCheck(GetBoolArg("-checkmempool", chainparams.DefaultConsistencyChecks()));
int ratio = std::min<int>(std::max<int>(GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000);
if (ratio != 0) {
mempool.setSanityCheck(1.0 / ratio);
}
fCheckBlockIndex = GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks());
fCheckpointsEnabled = GetBoolArg("-checkpoints", true);

9
src/txmempool.cpp
View file

@ -311,7 +311,7 @@ CTxMemPool::CTxMemPool(const CFeeRate& _minRelayFee) :
// Sanity checks off by default for performance, because otherwise
// accepting transactions becomes O(N^2) where N is the number
// of transactions in the pool
fSanityCheck = false;
nCheckFrequency = 0;
minerPolicyEstimator = new CBlockPolicyEstimator(_minRelayFee);
}
@ -483,7 +483,7 @@ void CTxMemPool::removeCoinbaseSpends(const CCoinsViewCache *pcoins, unsigned in
if (it2 != mapTx.end())
continue;
const CCoins *coins = pcoins->AccessCoins(txin.prevout.hash);
if (fSanityCheck) assert(coins);
if (nCheckFrequency != 0) assert(coins);
if (!coins || (coins->IsCoinBase() && ((signed long)nMemPoolHeight) - coins->nHeight < COINBASE_MATURITY)) {
transactionsToRemove.push_back(tx);
break;
@ -553,7 +553,10 @@ void CTxMemPool::clear()
void CTxMemPool::check(const CCoinsViewCache *pcoins) const
{
if (!fSanityCheck)
if (nCheckFrequency == 0)
return;
if (insecure_rand() >= nCheckFrequency)
return;
LogPrint("mempool", "Checking mempool with %u transactions and %u inputs\n", (unsigned int)mapTx.size(), (unsigned int)mapNextTx.size());

4
src/txmempool.h
View file

@ -277,7 +277,7 @@ public:
class CTxMemPool
{
private:
bool fSanityCheck; //! Normally false, true if -checkmempool or -regtest
uint32_t nCheckFrequency; //! Value n means that n times in 2^32 we check.
unsigned int nTransactionsUpdated;
CBlockPolicyEstimator* minerPolicyEstimator;
@ -338,7 +338,7 @@ public:
* check does nothing.
*/
void check(const CCoinsViewCache *pcoins) const;
void setSanityCheck(bool _fSanityCheck) { fSanityCheck = _fSanityCheck; }
void setSanityCheck(double dFrequency = 1.0) { nCheckFrequency = dFrequency * 4294967296.0; }
// addUnchecked must updated state for all ancestors of a given transaction,
// to track size/count of descendant transactions. First version of