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Merge #7874: Improve AlreadyHave

c6cb6f7 Avoid unnecessary database access for unknown transactions (Alex Morcos)
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laanwj committed Apr 14, 2016
2 parents 6ef5e00 + c6cb6f7 commit e6a4d48a9bff0bdbcca3a13de59b5e6e683a6aac
Showing with 3 additions and 1 deletion.
  1. +3 −1 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);

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