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// Copyright (c) 2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_KERNEL_COINSTATS_H
#define BITCOIN_KERNEL_COINSTATS_H
#include <consensus/amount.h>
#include <crypto/muhash.h>
#include <streams.h>
#include <uint256.h>
#include <cstdint>
#include <functional>
#include <optional>
class CCoinsView;
class Coin;
class COutPoint;
class CScript;
namespace node {
class BlockManager;
} // namespace node
namespace kernel {
enum class CoinStatsHashType {
HASH_SERIALIZED,
MUHASH,
NONE,
};
struct CCoinsStats {
int nHeight{0};
uint256 hashBlock{};
uint64_t nTransactions{0};
uint64_t nTransactionOutputs{0};
uint64_t nBogoSize{0};
uint256 hashSerialized{};
uint64_t nDiskSize{0};
//! The total amount, or nullopt if an overflow occurred calculating it
std::optional<CAmount> total_amount{0};
//! The number of coins contained.
uint64_t coins_count{0};
//! Signals if the coinstatsindex was used to retrieve the statistics.
bool index_used{false};
// Following values are only available from coinstats index
//! Total cumulative amount of block subsidies up to and including this block
CAmount total_subsidy{0};
//! Total cumulative amount of unspendable coins up to and including this block
CAmount total_unspendable_amount{0};
//! Total cumulative amount of prevouts spent up to and including this block
CAmount total_prevout_spent_amount{0};
//! Total cumulative amount of outputs created up to and including this block
CAmount total_new_outputs_ex_coinbase_amount{0};
//! Total cumulative amount of coinbase outputs up to and including this block
CAmount total_coinbase_amount{0};
//! The unspendable coinbase amount from the genesis block
CAmount total_unspendables_genesis_block{0};
//! The two unspendable coinbase outputs total amount caused by BIP30
CAmount total_unspendables_bip30{0};
//! Total cumulative amount of outputs sent to unspendable scripts (OP_RETURN for example) up to and including this block
CAmount total_unspendables_scripts{0};
//! Total cumulative amount of coins lost due to unclaimed miner rewards up to and including this block
CAmount total_unspendables_unclaimed_rewards{0};
CCoinsStats() = default;
CCoinsStats(int block_height, const uint256& block_hash);
};
uint64_t GetBogoSize(const CScript& script_pub_key);
void ApplyCoinHash(MuHash3072& muhash, const COutPoint& outpoint, const Coin& coin);
void RemoveCoinHash(MuHash3072& muhash, const COutPoint& outpoint, const Coin& coin);
std::optional<CCoinsStats> ComputeUTXOStats(CoinStatsHashType hash_type, CCoinsView* view, node::BlockManager& blockman, const std::function<void()>& interruption_point = {});
} // namespace kernel
#endif // BITCOIN_KERNEL_COINSTATS_H
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