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Avoid unnecessary database access for unknown transactions

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This commit is contained in:
Alex Morcos 2016-04-13 16:02:46 -04:00
parent 514993554c
commit c6cb6f7d4c
1 changed files with 3 additions and 1 deletions
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4
src/main.cpp
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@ -4344,10 +4344,12 @@ bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
recentRejects->reset();
}
// Use pcoinsTip->HaveCoinsInCache as a quick approximation to exclude
// requesting or processing some txs which have already been included in a block
return recentRejects->contains(inv.hash) ||
mempool.exists(inv.hash) ||
mapOrphanTransactions.count(inv.hash) ||
pcoinsTip->HaveCoins(inv.hash);
pcoinsTip->HaveCoinsInCache(inv.hash);
}
case MSG_BLOCK:
return mapBlockIndex.count(inv.hash);