Function GetUTXOStats

src/rpc/blockchain.cpp:995–1018

* Calculate statistics about the unspent transaction output set * * @param[in] index_requested Signals if the coinstatsindex should be used (when available). */

 * @param[in] index_requested Signals if the coinstatsindex should be used (when available).
 */
static std::optional<kernel::CCoinsStats> GetUTXOStats(CCoinsView* view, node::BlockManager& blockman,
                                                       kernel::CoinStatsHashType hash_type,
                                                       const std::function<void()>& interruption_point = {},
                                                       const CBlockIndex* pindex = nullptr,
                                                       bool index_requested = true)
{
    // Use CoinStatsIndex if it is requested and available and a hash_type of Muhash or None was requested
    if ((hash_type == kernel::CoinStatsHashType::MUHASH || hash_type == kernel::CoinStatsHashType::NONE) && g_coin_stats_index && index_requested) {
        if (pindex) {
            return g_coin_stats_index->LookUpStats(*pindex);
        } else {
            CBlockIndex& block_index = *CHECK_NONFATAL(WITH_LOCK(::cs_main, return blockman.LookupBlockIndex(view->GetBestBlock())));
            return g_coin_stats_index->LookUpStats(block_index);
        }
    }

    // If the coinstats index isn't requested or is otherwise not usable, the
    // pindex should either be null or equal to the view's best block. This is
    // because without the coinstats index we can only get coinstats about the
    // best block.
    CHECK_NONFATAL(!pindex || pindex->GetBlockHash() == view->GetBestBlock());

    return kernel::ComputeUTXOStats(hash_type, view, blockman, interruption_point);
}

static RPCMethod gettxoutsetinfo()
{