Function LookUpOne

src/index/coinstatsindex.cpp:314–331

}

static bool LookUpOne(const CDBWrapper& db, const CBlockIndex* block_index, DBVal& result)
{
    // First check if the result is stored under the height index and the value
    // there matches the block hash. This should be the case if the block is on
    // the active chain.
    std::pair<uint256, DBVal> read_out;
    if (!db.Read(DBHeightKey(block_index->nHeight), read_out)) {
        return false;
    }
    if (read_out.first == block_index->GetBlockHash()) {
        result = std::move(read_out.second);
        return true;
    }

    // If value at the height index corresponds to an different block, the
    // result will be stored in the hash index.
    return db.Read(DBHashKey(block_index->GetBlockHash()), result);
}

bool CoinStatsIndex::LookUpStats(const CBlockIndex* block_index, CCoinsStats& coins_stats) const
{