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Merge #10558: Address nits from per-utxo change

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21d4afa12 Comment clarifications in coins.cpp (Alex Morcos)
3c8a9aeff Add belt-and-suspenders in DisconnectBlock (Alex Morcos)

Tree-SHA512: d83e12ed71674faaaaebc03ffa1e2276984c35a29db419268ac9e14a45b33ccab716e3606dff8cfe1dcee4bec6e4794d2ca90341f10d5684be80e3fee61addf8
This commit is contained in:
Pieter Wuille 2017-06-28 11:23:11 -07:00
parent 30c21306c1 21d4afa12f
commit 90a002ea64
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2 changed files with 5 additions and 1 deletions
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3
src/coins.h
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@ -306,6 +306,9 @@ private:
void AddCoins(CCoinsViewCache& cache, const CTransaction& tx, int nHeight, bool check = false);
//! Utility function to find any unspent output with a given txid.
// This function can be quite expensive because in the event of a transaction
// which is not found in the cache, it can cause up to MAX_OUTPUTS_PER_BLOCK
// lookups to database, so it should be used with care.
const Coin& AccessByTxid(const CCoinsViewCache& cache, const uint256& txid);
#endif // BITCOIN_COINS_H

3
src/validation.cpp
View file

@ -1366,6 +1366,7 @@ static DisconnectResult DisconnectBlock(const CBlock& block, const CBlockIndex*
for (int i = block.vtx.size() - 1; i >= 0; i--) {
const CTransaction &tx = *(block.vtx[i]);
uint256 hash = tx.GetHash();
bool is_coinbase = tx.IsCoinBase();
// Check that all outputs are available and match the outputs in the block itself
// exactly.
@ -1374,7 +1375,7 @@ static DisconnectResult DisconnectBlock(const CBlock& block, const CBlockIndex*
COutPoint out(hash, o);
Coin coin;
bool is_spent = view.SpendCoin(out, &coin);
if (!is_spent || tx.vout[o] != coin.out) {
if (!is_spent || tx.vout[o] != coin.out || pindex->nHeight != coin.nHeight || is_coinbase != coin.fCoinBase) {
fClean = false; // transaction output mismatch
}
}