4d5e53e7b2
Strictly speaking the left/right consensus branches haven't been initialised so contain random values. Most of the time these happen to be null, but sometimes causes client crashes (at least it does in 1.15, but fixing in earlier versions to be sure).
92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2016 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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#include <map>
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#include <string>
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namespace Consensus {
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enum DeploymentPos
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{
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DEPLOYMENT_TESTDUMMY,
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DEPLOYMENT_CSV, // Deployment of BIP68, BIP112, and BIP113.
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DEPLOYMENT_SEGWIT, // Deployment of BIP141, BIP143, and BIP147.
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// NOTE: Also add new deployments to VersionBitsDeploymentInfo in versionbits.cpp
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MAX_VERSION_BITS_DEPLOYMENTS
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};
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/**
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* Struct for each individual consensus rule change using BIP9.
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*/
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struct BIP9Deployment {
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/** Bit position to select the particular bit in nVersion. */
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int bit;
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/** Start MedianTime for version bits miner confirmation. Can be a date in the past */
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int64_t nStartTime;
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/** Timeout/expiry MedianTime for the deployment attempt. */
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int64_t nTimeout;
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};
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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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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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/** Block height and hash at which BIP34 becomes active */
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int BIP34Height;
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uint256 BIP34Hash;
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/** Block height at which BIP65 becomes active */
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// int BIP65Height;
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/** Block height at which BIP66 becomes active */
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int BIP66Height;
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/**
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* Minimum blocks including miner confirmation of the total of 2016 blocks in a retargeting period,
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* (nPowTargetTimespan / nPowTargetSpacing) which is also used for BIP9 deployments.
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* Examples: 1916 for 95%, 1512 for testchains.
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*/
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uint32_t nRuleChangeActivationThreshold;
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uint32_t nMinerConfirmationWindow;
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BIP9Deployment vDeployments[MAX_VERSION_BITS_DEPLOYMENTS];
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uint32_t nCoinbaseMaturity;
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/** Proof of work parameters */
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uint256 powLimit;
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bool fPowAllowMinDifficultyBlocks;
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bool fPowNoRetargeting;
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int64_t nPowTargetSpacing;
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int64_t nPowTargetTimespan;
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int64_t DifficultyAdjustmentInterval() const { return nPowTargetTimespan / nPowTargetSpacing; }
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/** Dogecoin-specific parameters */
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bool fDigishieldDifficultyCalculation;
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bool fPowAllowDigishieldMinDifficultyBlocks; // Allow minimum difficulty blocks where a retarget would normally occur
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bool fSimplifiedRewards; // Use block height derived rewards rather than previous block hash derived
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uint256 nMinimumChainWork;
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uint256 defaultAssumeValid;
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/** Auxpow parameters */
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int32_t nAuxpowChainId;
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bool fStrictChainId;
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bool fAllowLegacyBlocks;
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/** Height-aware consensus parameters */
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uint32_t nHeightEffective; // When these parameters come into use
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struct Params *pLeft = nullptr; // Left hand branch
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struct Params *pRight = nullptr; // Right hand branch
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const Consensus::Params *GetConsensus(uint32_t nTargetHeight) const;
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};
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} // namespace Consensus
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#endif // BITCOIN_CONSENSUS_PARAMS_H
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