bitcoin/src/node/coin.cpp

// Copyright (c) 2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <node/coin.h>

#include <txmempool.h>
#include <validation.h>

void FindCoins(std::map<COutPoint, Coin>& coins)
{
    LOCK2(cs_main, ::mempool.cs);
    CCoinsViewCache& chain_view = ::ChainstateActive().CoinsTip();
    CCoinsViewMemPool mempool_view(&chain_view, ::mempool);
    for (auto& coin : coins) {
        if (!mempool_view.GetCoin(coin.first, coin.second)) {
            // Either the coin is not in the CCoinsViewCache or is spent. Clear it.
            coin.second.Clear();
        }
    }
}