highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-11-12 23:18:14 +01:00
Code Issues Packages Projects Releases Wiki Activity

Merge #7056: Save last db read

Browse Source 
8504867 Save the last unnecessary database read (Alex Morcos)
This commit is contained in:
Wladimir J. van der Laan
2016-01-22 14:15:45 +01:00
parent 93b05764d5 8504867b14
commit 6a07208388
3 changed files with 11 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/coins.cpp
View File

@@ -117,11 +117,17 @@ CCoinsModifier CCoinsViewCache::ModifyCoins(const uint256 &txid) {
return CCoinsModifier(*this, ret.first, cachedCoinUsage);
}
CCoinsModifier CCoinsViewCache::ModifyNewCoins(const uint256 &txid) {
// ModifyNewCoins has to know whether the new outputs its creating are for a
// coinbase or not. If they are for a coinbase, it can not mark them as fresh.
// This is to ensure that the historical duplicate coinbases before BIP30 was
// in effect will still be properly overwritten when spent.
CCoinsModifier CCoinsViewCache::ModifyNewCoins(const uint256 &txid, bool coinbase) {
assert(!hasModifier);
std::pair<CCoinsMap::iterator, bool> ret = cacheCoins.insert(std::make_pair(txid, CCoinsCacheEntry()));
ret.first->second.coins.Clear();
ret.first->second.flags = CCoinsCacheEntry::FRESH;
if (!coinbase) {
ret.first->second.flags = CCoinsCacheEntry::FRESH;
}
ret.first->second.flags |= CCoinsCacheEntry::DIRTY;
return CCoinsModifier(*this, ret.first, 0);
}