be16f80abc
Any projects which want to use Hush code from now on will need to be licensed as GPLv3 or we will send the lawyers: https://www.softwarefreedom.org/ Notably, Komodo (KMD) is licensed as GPLv2 and is no longer compatible to receive code changes, without causing legal issues. MIT projects, such as Zcash, also cannot pull in changes from the Hush Full Node without permission from The Hush Developers, which may in some circumstances grant an MIT license on a case-by-case basis.
51 lines
2.6 KiB
C++
51 lines
2.6 KiB
C++
// 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 GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#ifndef BITCOIN_POW_H
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#define BITCOIN_POW_H
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#include "chain.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 CChainParams;
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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(arith_uint256 bnAvg,
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int64_t nLastBlockTime, int64_t nFirstBlockTime,
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const Consensus::Params&);
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/** Check whether the Equihash solution in a block header is valid */
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bool CheckEquihashSolution(const CBlockHeader *pblock, const CChainParams&);
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/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
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bool CheckProofOfWork(const CBlockHeader &blkHeader, uint8_t *pubkey33, int32_t height, const Consensus::Params& params);
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CChainPower 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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