pow.h

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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Copyright (c) 2014-2015 The Dash developers
// Copyright (c) 2017-2021 The PIVX Core developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef PIVX_POW_H
#define PIVX_POW_H
 
#include <stdint.h>
 
class CBlockHeader;
class CBlockIndex;
class uint256;
class arith_uint256;
 
// Define difficulty retarget algorithms
enum DiffMode {
    DIFF_DEFAULT = 0, // Default to invalid 0
    DIFF_BTC = 1,     // Retarget every x blocks (Bitcoin style)
    DIFF_KGW = 2,     // Retarget using Kimoto Gravity Well
    DIFF_DGW = 3,     // Retarget using Dark Gravity Wave v3
};
 
unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader* pblock);
 
bool CheckProofOfWork(uint256 hash, unsigned int nBits);
arith_uint256 GetBlockProof(const CBlockIndex& block);
 
#endif // PIVX_POW_H