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42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2020 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_NODE_UTXO_SNAPSHOT_H
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#define BITCOIN_NODE_UTXO_SNAPSHOT_H
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#include <uint256.h>
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#include <serialize.h>
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//! Metadata describing a serialized version of a UTXO set from which an
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//! assumeutxo CChainState can be constructed.
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class SnapshotMetadata
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{
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public:
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//! The hash of the block that reflects the tip of the chain for the
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//! UTXO set contained in this snapshot.
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uint256 m_base_blockhash;
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//! The number of coins in the UTXO set contained in this snapshot. Used
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//! during snapshot load to estimate progress of UTXO set reconstruction.
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uint64_t m_coins_count = 0;
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//! Necessary to "fake" the base nChainTx so that we can estimate progress during
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//! initial block download for the assumeutxo chainstate.
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unsigned int m_nchaintx = 0;
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SnapshotMetadata() { }
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SnapshotMetadata(
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const uint256& base_blockhash,
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uint64_t coins_count,
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unsigned int nchaintx) :
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m_base_blockhash(base_blockhash),
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m_coins_count(coins_count),
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m_nchaintx(nchaintx) { }
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SERIALIZE_METHODS(SnapshotMetadata, obj) { READWRITE(obj.m_base_blockhash, obj.m_coins_count, obj.m_nchaintx); }
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};
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#endif // BITCOIN_NODE_UTXO_SNAPSHOT_H
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