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Change semantics of HaveCoinInCache to match HaveCoin

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Previously it was possible for HaveCoinInCache to return true for a spent
coin. It is more clear to keep the semantics the same. HaveCoinInCache is
used for two reasons:
- tracking coins we may want to uncache, in which case it is unlikely there
would be spent coins we could uncache (not dirty)
- optimistically checking whether we have already included a tx in the
blockchain, in which case a spent coin is not a reliable indicator that we have.
This commit is contained in:
Alex Morcos 2017-06-08 16:56:50 -04:00
parent 9c248e39f2
commit 525769853e
1 changed files with 1 additions and 1 deletions
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src/coins.cpp
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@ -124,7 +124,7 @@ bool CCoinsViewCache::HaveCoin(const COutPoint &outpoint) const {
bool CCoinsViewCache::HaveCoinInCache(const COutPoint &outpoint) const { bool CCoinsViewCache::HaveCoinInCache(const COutPoint &outpoint) const {
CCoinsMap::const_iterator it = cacheCoins.find(outpoint); CCoinsMap::const_iterator it = cacheCoins.find(outpoint);
return it != cacheCoins.end(); return (it != cacheCoins.end() && !it->second.coin.IsSpent());
} }
uint256 CCoinsViewCache::GetBestBlock() const { uint256 CCoinsViewCache::GetBestBlock() const {