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Bugfix: make CCoinsViewMemPool support pruned entries in underlying cache

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This commit is contained in:
Pieter Wuille 2014-07-23 15:28:45 +02:00
parent cdb4193a31
commit ad08d0b95b
1 changed files with 4 additions and 3 deletions
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7
src/txmempool.cpp
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@ -602,14 +602,15 @@ void CTxMemPool::ClearPrioritisation(const uint256 hash)
CCoinsViewMemPool::CCoinsViewMemPool(CCoinsView &baseIn, CTxMemPool &mempoolIn) : CCoinsViewBacked(baseIn), mempool(mempoolIn) { }
bool CCoinsViewMemPool::GetCoins(const uint256 &txid, CCoins &coins) {
if (base->GetCoins(txid, coins))
return true;
// If an entry in the mempool exists, always return that one, as it's guaranteed to never
// conflict with the underlying cache, and it cannot have pruned entries (as it contains full)
// transactions. First checking the underlying cache risks returning a pruned entry instead.
CTransaction tx;
if (mempool.lookup(txid, tx)) {
coins = CCoins(tx, MEMPOOL_HEIGHT);
return true;
}
return false;
return (base->GetCoins(txid, coins) && !coins.IsPruned());
}
bool CCoinsViewMemPool::HaveCoins(const uint256 &txid) {