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Merge pull request #6776

ab1f560 Support -checkmempool=N, which runs checks on average once every N transactions (Pieter Wuille)
tags/v0.15.1
Pieter Wuille 4 years ago
parent
commit
e06c14fb59
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3 changed files with 12 additions and 6 deletions
  1. 4
    1
      src/init.cpp
  2. 6
    3
      src/txmempool.cpp
  3. 2
    2
      src/txmempool.h

+ 4
- 1
src/init.cpp View File

@@ -841,7 +841,10 @@ 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);


+ 6
- 3
src/txmempool.cpp View File

@@ -314,7 +314,7 @@ CTxMemPool::CTxMemPool(const CFeeRate& _minReasonableRelayFee) :
// 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(_minReasonableRelayFee);
minReasonableRelayFee = _minReasonableRelayFee;
@@ -487,7 +487,7 @@ 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;
@@ -568,7 +568,10 @@ 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());

+ 2
- 2
src/txmempool.h View File

@@ -278,7 +278,7 @@ 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;

@@ -360,7 +360,7 @@ 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

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