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Use a FastRandomContext in LimitOrphanTxSize

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This commit is contained in:
Pieter Wuille 2018-10-31 15:05:42 -07:00
parent 3db746beb4
commit 273d02580a
1 changed files with 2 additions and 1 deletions
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3
src/net_processing.cpp
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@ -779,10 +779,11 @@ unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans)
nNextSweep = nMinExpTime + ORPHAN_TX_EXPIRE_INTERVAL; nNextSweep = nMinExpTime + ORPHAN_TX_EXPIRE_INTERVAL;
if (nErased > 0) LogPrint(BCLog::MEMPOOL, "Erased %d orphan tx due to expiration\n", nErased); if (nErased > 0) LogPrint(BCLog::MEMPOOL, "Erased %d orphan tx due to expiration\n", nErased);
} }
FastRandomContext rng;
while (mapOrphanTransactions.size() > nMaxOrphans) while (mapOrphanTransactions.size() > nMaxOrphans)
{ {
// Evict a random orphan: // Evict a random orphan:
uint256 randomhash = GetRandHash(); uint256 randomhash = rng.rand256();
std::map<uint256, COrphanTx>::iterator it = mapOrphanTransactions.lower_bound(randomhash); std::map<uint256, COrphanTx>::iterator it = mapOrphanTransactions.lower_bound(randomhash);
if (it == mapOrphanTransactions.end()) if (it == mapOrphanTransactions.end())
it = mapOrphanTransactions.begin(); it = mapOrphanTransactions.begin();