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Rename CCoinsCacheEntry::coins to coin

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This commit is contained in:
Pieter Wuille
2017-05-04 00:15:36 -07:00
parent 119e552f7c
commit 73de2c1ff3
4 changed files with 33 additions and 33 deletions
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44
src/coins.cpp
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@@ -42,19 +42,19 @@ CCoinsMap::iterator CCoinsViewCache::FetchCoins(const COutPoint &outpoint) const
if (!base->GetCoins(outpoint, tmp))
return cacheCoins.end();
CCoinsMap::iterator ret = cacheCoins.emplace(std::piecewise_construct, std::forward_as_tuple(outpoint), std::forward_as_tuple(std::move(tmp))).first;
if (ret->second.coins.IsPruned()) {
if (ret->second.coin.IsPruned()) {
// The parent only has an empty entry for this outpoint; we can consider our
// version as fresh.
ret->second.flags = CCoinsCacheEntry::FRESH;
}
cachedCoinsUsage += ret->second.coins.DynamicMemoryUsage();
cachedCoinsUsage += ret->second.coin.DynamicMemoryUsage();
return ret;
}
bool CCoinsViewCache::GetCoins(const COutPoint &outpoint, Coin &coin) const {
CCoinsMap::const_iterator it = FetchCoins(outpoint);
if (it != cacheCoins.end()) {
coin = it->second.coins;
coin = it->second.coin;
return true;
}
return false;
@@ -68,17 +68,17 @@ void CCoinsViewCache::AddCoin(const COutPoint &outpoint, Coin&& coin, bool possi
std::tie(it, inserted) = cacheCoins.emplace(std::piecewise_construct, std::forward_as_tuple(outpoint), std::tuple<>());
bool fresh = false;
if (!inserted) {
cachedCoinsUsage -= it->second.coins.DynamicMemoryUsage();
cachedCoinsUsage -= it->second.coin.DynamicMemoryUsage();
}
if (!possible_overwrite) {
if (!it->second.coins.IsPruned()) {
if (!it->second.coin.IsPruned()) {
throw std::logic_error("Adding new coin that replaces non-pruned entry");
}
fresh = !(it->second.flags & CCoinsCacheEntry::DIRTY);
}
it->second.coins = std::move(coin);
it->second.coin = std::move(coin);
it->second.flags |= CCoinsCacheEntry::DIRTY | (fresh ? CCoinsCacheEntry::FRESH : 0);
cachedCoinsUsage += it->second.coins.DynamicMemoryUsage();
cachedCoinsUsage += it->second.coin.DynamicMemoryUsage();
}
void AddCoins(CCoinsViewCache& cache, const CTransaction &tx, int nHeight) {
@@ -94,15 +94,15 @@ void AddCoins(CCoinsViewCache& cache, const CTransaction &tx, int nHeight) {
void CCoinsViewCache::SpendCoin(const COutPoint &outpoint, Coin* moveout) {
CCoinsMap::iterator it = FetchCoins(outpoint);
if (it == cacheCoins.end()) return;
cachedCoinsUsage -= it->second.coins.DynamicMemoryUsage();
cachedCoinsUsage -= it->second.coin.DynamicMemoryUsage();
if (moveout) {
*moveout = std::move(it->second.coins);
*moveout = std::move(it->second.coin);
}
if (it->second.flags & CCoinsCacheEntry::FRESH) {
cacheCoins.erase(it);
} else {
it->second.flags |= CCoinsCacheEntry::DIRTY;
it->second.coins.Clear();
it->second.coin.Clear();
}
}
@@ -113,13 +113,13 @@ const Coin& CCoinsViewCache::AccessCoin(const COutPoint &outpoint) const {
if (it == cacheCoins.end()) {
return coinEmpty;
} else {
return it->second.coins;
return it->second.coin;
}
}
bool CCoinsViewCache::HaveCoins(const COutPoint &outpoint) const {
CCoinsMap::const_iterator it = FetchCoins(outpoint);
return (it != cacheCoins.end() && !it->second.coins.IsPruned());
return (it != cacheCoins.end() && !it->second.coin.IsPruned());
}
bool CCoinsViewCache::HaveCoinsInCache(const COutPoint &outpoint) const {
@@ -144,12 +144,12 @@ bool CCoinsViewCache::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlockIn
if (itUs == cacheCoins.end()) {
// The parent cache does not have an entry, while the child does
// We can ignore it if it's both FRESH and pruned in the child
if (!(it->second.flags & CCoinsCacheEntry::FRESH && it->second.coins.IsPruned())) {
if (!(it->second.flags & CCoinsCacheEntry::FRESH && it->second.coin.IsPruned())) {
// Otherwise we will need to create it in the parent
// and move the data up and mark it as dirty
CCoinsCacheEntry& entry = cacheCoins[it->first];
entry.coins = std::move(it->second.coins);
cachedCoinsUsage += entry.coins.DynamicMemoryUsage();
entry.coin = std::move(it->second.coin);
cachedCoinsUsage += entry.coin.DynamicMemoryUsage();
entry.flags = CCoinsCacheEntry::DIRTY;
// We can mark it FRESH in the parent if it was FRESH in the child
// Otherwise it might have just been flushed from the parent's cache
@@ -162,21 +162,21 @@ bool CCoinsViewCache::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlockIn
// parent cache entry has unspent outputs. If this ever happens,
// it means the FRESH flag was misapplied and there is a logic
// error in the calling code.
if ((it->second.flags & CCoinsCacheEntry::FRESH) && !itUs->second.coins.IsPruned())
if ((it->second.flags & CCoinsCacheEntry::FRESH) && !itUs->second.coin.IsPruned())
throw std::logic_error("FRESH flag misapplied to cache entry for base transaction with spendable outputs");
// Found the entry in the parent cache
if ((itUs->second.flags & CCoinsCacheEntry::FRESH) && it->second.coins.IsPruned()) {
if ((itUs->second.flags & CCoinsCacheEntry::FRESH) && it->second.coin.IsPruned()) {
// The grandparent does not have an entry, and the child is
// modified and being pruned. This means we can just delete
// it from the parent.
cachedCoinsUsage -= itUs->second.coins.DynamicMemoryUsage();
cachedCoinsUsage -= itUs->second.coin.DynamicMemoryUsage();
cacheCoins.erase(itUs);
} else {
// A normal modification.
cachedCoinsUsage -= itUs->second.coins.DynamicMemoryUsage();
itUs->second.coins = std::move(it->second.coins);
cachedCoinsUsage += itUs->second.coins.DynamicMemoryUsage();
cachedCoinsUsage -= itUs->second.coin.DynamicMemoryUsage();
itUs->second.coin = std::move(it->second.coin);
cachedCoinsUsage += itUs->second.coin.DynamicMemoryUsage();
itUs->second.flags |= CCoinsCacheEntry::DIRTY;
// NOTE: It is possible the child has a FRESH flag here in
// the event the entry we found in the parent is pruned. But
@@ -204,7 +204,7 @@ void CCoinsViewCache::Uncache(const COutPoint& hash)
{
CCoinsMap::iterator it = cacheCoins.find(hash);
if (it != cacheCoins.end() && it->second.flags == 0) {
cachedCoinsUsage -= it->second.coins.DynamicMemoryUsage();
cachedCoinsUsage -= it->second.coin.DynamicMemoryUsage();
cacheCoins.erase(it);
}
}