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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_CHAINSTATEMANAGER_OPTS_H
#define BITCOIN_KERNEL_CHAINSTATEMANAGER_OPTS_H
#include <kernel/notifications_interface.h>
#include <arith_uint256.h>
#include <dbwrapper.h>
#include <txdb.h>
#include <uint256.h>
#include <util/time.h>
#include <cstdint>
#include <functional>
#include <optional>
class CChainParams;
class ValidationSignals;
static constexpr bool DEFAULT_CHECKPOINTS_ENABLED{true};
static constexpr auto DEFAULT_MAX_TIP_AGE{24h};
namespace kernel {
/**
* An options struct for `ChainstateManager`, more ergonomically referred to as
* `ChainstateManager::Options` due to the using-declaration in
* `ChainstateManager`.
*/
struct ChainstateManagerOpts {
const CChainParams& chainparams;
fs::path datadir;
std::optional<int32_t> check_block_index{};
bool checkpoints_enabled{DEFAULT_CHECKPOINTS_ENABLED};
//! If set, it will override the minimum work we will assume exists on some valid chain.
std::optional<arith_uint256> minimum_chain_work{};
//! If set, it will override the block hash whose ancestors we will assume to have valid scripts without checking them.
std::optional<uint256> assumed_valid_block{};
//! If the tip is older than this, the node is considered to be in initial block download.
std::chrono::seconds max_tip_age{DEFAULT_MAX_TIP_AGE};
DBOptions block_tree_db{};
DBOptions coins_db{};
CoinsViewOptions coins_view{};
Notifications& notifications;
ValidationSignals* signals{nullptr};
//! Number of script check worker threads. Zero means no parallel verification.
int worker_threads_num{0};
};
} // namespace kernel
#endif // BITCOIN_KERNEL_CHAINSTATEMANAGER_OPTS_H
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