1// Copyright (c) 2022-present The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#ifndef BITCOIN_KERNEL_CHAIN_H
6#define BITCOIN_KERNEL_CHAIN_H
7
8#include <attributes.h>
9
10#include <cstdint>
11#include <iostream>
12
13class CBlock;
14class CBlockIndex;
15class CBlockUndo;
16class uint256;
17
18namespace interfaces {
19//! Block data sent with blockConnected, blockDisconnected notifications.
20struct BlockInfo {
21    const uint256& hash;
22    const uint256* prev_hash = nullptr;
23    int height = -1;
24    int file_number = -1;
25    uint64_t data_pos = 0;
26    const CBlock* data = nullptr;
27    const CBlockUndo* undo_data = nullptr;
28    // The maximum time in the chain up to and including this block.
29    // A timestamp that can only move forward.
30    unsigned int chain_time_max{0};
31
32    BlockInfo(const uint256& hash LIFETIMEBOUND) : hash(hash) {}
33};
34} // namespace interfaces
35
36namespace kernel {
37struct ChainstateRole;
38//! Return data from block index.
39interfaces::BlockInfo MakeBlockInfo(const CBlockIndex* block_index, const CBlock* data = nullptr);
40std::ostream& operator<<(std::ostream& os, const ChainstateRole& role);
41} // namespace kernel
42
43#endif // BITCOIN_KERNEL_CHAIN_H
44