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28 lines
1.2 KiB
28 lines
1.2 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2014 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_POW_H |
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#define BITCOIN_POW_H |
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#include "consensus/params.h" |
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#include <stdint.h> |
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class CBlockHeader; |
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class CBlockIndex; |
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class uint256; |
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class arith_uint256; |
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unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params&); |
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unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nFirstBlockTime, const Consensus::Params&); |
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/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */ |
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bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&); |
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arith_uint256 GetBlockProof(const CBlockIndex& block); |
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/** Return the time it would take to redo the work difference between from and to, assuming the current hashrate corresponds to the difficulty at tip, in seconds. */ |
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int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params&); |
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#endif // BITCOIN_POW_H
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