29 lines
1.2 KiB
C++
29 lines
1.2 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2014 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_POW_H
|
|
#define BITCOIN_POW_H
|
|
|
|
#include "consensus/params.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
class CBlockHeader;
|
|
class CBlockIndex;
|
|
class uint256;
|
|
class arith_uint256;
|
|
|
|
unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params&);
|
|
unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nFirstBlockTime, const Consensus::Params&);
|
|
|
|
/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
|
|
bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&);
|
|
arith_uint256 GetBlockProof(const CBlockIndex& block);
|
|
|
|
/** 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. */
|
|
int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params&);
|
|
|
|
#endif // BITCOIN_POW_H
|