diff options
Diffstat (limited to 'src/validation.cpp')
| -rw-r--r-- | src/validation.cpp | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/src/validation.cpp b/src/validation.cpp index c101497600..d7d880d24f 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -455,7 +455,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool // Reject transactions with witness before segregated witness activates (override with -prematurewitness) bool witnessEnabled = IsWitnessEnabled(chainActive.Tip(), chainparams.GetConsensus()); - if (!GetBoolArg("-prematurewitness",false) && tx.HasWitness() && !witnessEnabled) { + if (!GetBoolArg("-prematurewitness", false) && tx.HasWitness() && !witnessEnabled) { return state.DoS(0, false, REJECT_NONSTANDARD, "no-witness-yet", true); } @@ -532,24 +532,20 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool CCoinsViewMemPool viewMemPool(pcoinsTip, pool); view.SetBackend(viewMemPool); - // do we already have it? - for (size_t out = 0; out < tx.vout.size(); out++) { - COutPoint outpoint(hash, out); - bool had_coin_in_cache = pcoinsTip->HaveCoinInCache(outpoint); - if (view.HaveCoin(outpoint)) { - if (!had_coin_in_cache) { - coins_to_uncache.push_back(outpoint); - } - return state.Invalid(false, REJECT_DUPLICATE, "txn-already-known"); - } - } - // do all inputs exist? for (const CTxIn txin : tx.vin) { if (!pcoinsTip->HaveCoinInCache(txin.prevout)) { coins_to_uncache.push_back(txin.prevout); } if (!view.HaveCoin(txin.prevout)) { + // Are inputs missing because we already have the tx? + for (size_t out = 0; out < tx.vout.size(); out++) { + // Optimistically just do efficient check of cache for outputs + if (pcoinsTip->HaveCoinInCache(COutPoint(hash, out))) { + return state.Invalid(false, REJECT_DUPLICATE, "txn-already-known"); + } + } + // Otherwise assume this might be an orphan tx for which we just haven't seen parents yet if (pfMissingInputs) { *pfMissingInputs = true; } |