53 lines
1.8 KiB
C++
53 lines
1.8 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 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_CONSENSUS_PARAMS_H
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#define BITCOIN_CONSENSUS_PARAMS_H
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#include "uint256.h"
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namespace Consensus {
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/**
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* Parameters that influence chain consensus.
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*/
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struct Params {
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uint256 hashGenesisBlock;
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bool fCoinbaseMustBeProtected;
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/** Needs to evenly divide MAX_SUBSIDY to avoid rounding errors. */
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int nSubsidySlowStartInterval;
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/**
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* Shift based on a linear ramp for slow start:
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*
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* MAX_SUBSIDY*(t_s/2 + t_r) = MAX_SUBSIDY*t_h Coin balance
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* t_s + t_r = t_h + t_c Block balance
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*
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* t_s = nSubsidySlowStartInterval
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* t_r = number of blocks between end of slow start and first halving
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* t_h = nSubsidyHalvingInterval
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* t_c = SubsidySlowStartShift()
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*/
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int SubsidySlowStartShift() const { return nSubsidySlowStartInterval / 2; }
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int nSubsidyHalvingInterval;
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/** Used to check majorities for block version upgrade */
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int nMajorityEnforceBlockUpgrade;
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int nMajorityRejectBlockOutdated;
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int nMajorityWindow;
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/** Proof of work parameters */
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uint256 powLimit;
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bool fPowAllowMinDifficultyBlocks;
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int64_t nPowAveragingWindow;
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int64_t nPowMaxAdjustDown;
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int64_t nPowMaxAdjustUp;
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int64_t nPowTargetSpacing;
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int64_t AveragingWindowTimespan() const { return nPowAveragingWindow * nPowTargetSpacing; }
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int64_t MinActualTimespan() const { return (AveragingWindowTimespan() * (100 - nPowMaxAdjustUp )) / 100; }
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int64_t MaxActualTimespan() const { return (AveragingWindowTimespan() * (100 + nPowMaxAdjustDown)) / 100; }
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};
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} // namespace Consensus
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#endif // BITCOIN_CONSENSUS_PARAMS_H
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