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64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
// Copyright (c) 2020-2021 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_INDEX_COINSTATSINDEX_H
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#define BITCOIN_INDEX_COINSTATSINDEX_H
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#include <chain.h>
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#include <crypto/muhash.h>
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#include <flatfile.h>
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#include <index/base.h>
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#include <node/coinstats.h>
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/**
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* CoinStatsIndex maintains statistics on the UTXO set.
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*/
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class CoinStatsIndex final : public BaseIndex
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{
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private:
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std::string m_name;
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std::unique_ptr<BaseIndex::DB> m_db;
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MuHash3072 m_muhash;
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uint64_t m_transaction_output_count{0};
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uint64_t m_bogo_size{0};
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CAmount m_total_amount{0};
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CAmount m_total_subsidy{0};
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CAmount m_total_unspendable_amount{0};
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CAmount m_total_prevout_spent_amount{0};
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CAmount m_total_new_outputs_ex_coinbase_amount{0};
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CAmount m_total_coinbase_amount{0};
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CAmount m_total_unspendables_genesis_block{0};
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CAmount m_total_unspendables_bip30{0};
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CAmount m_total_unspendables_scripts{0};
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CAmount m_total_unspendables_unclaimed_rewards{0};
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bool ReverseBlock(const CBlock& block, const CBlockIndex* pindex);
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protected:
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bool Init() override;
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bool CommitInternal(CDBBatch& batch) override;
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bool WriteBlock(const CBlock& block, const CBlockIndex* pindex) override;
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bool Rewind(const CBlockIndex* current_tip, const CBlockIndex* new_tip) override;
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BaseIndex::DB& GetDB() const override { return *m_db; }
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const char* GetName() const override { return "coinstatsindex"; }
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public:
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// Constructs the index, which becomes available to be queried.
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explicit CoinStatsIndex(size_t n_cache_size, bool f_memory = false, bool f_wipe = false);
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// Look up stats for a specific block using CBlockIndex
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bool LookUpStats(const CBlockIndex* block_index, CCoinsStats& coins_stats) const;
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};
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/// The global UTXO set hash object.
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extern std::unique_ptr<CoinStatsIndex> g_coin_stats_index;
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#endif // BITCOIN_INDEX_COINSTATSINDEX_H
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