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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2016 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_CONSENSUS_PARAMS_H
#define BITCOIN_CONSENSUS_PARAMS_H
#include "uint256.h"
#include <map>
#include <string>
namespace Consensus {
enum DeploymentPos {
DEPLOYMENT_TESTDUMMY,
// NOTE: Also add new deployments to VersionBitsDeploymentInfo in
// versionbits.cpp
MAX_VERSION_BITS_DEPLOYMENTS
};
/**
* Struct for each individual consensus rule change using BIP9.
*/
struct BIP9Deployment {
/** Bit position to select the particular bit in nVersion. */
int bit;
/**
* Start MedianTime for version bits miner confirmation. Can be a date in
* the past.
*/
int64_t nStartTime;
/** Timeout/expiry MedianTime for the deployment attempt. */
int64_t nTimeout;
};
/**
* Parameters that influence chain consensus.
*/
struct Params {
uint256 hashGenesisBlock;
int nSubsidyHalvingInterval;
/** Block height and hash at which BIP34 becomes active */
int BIP34Height;
uint256 BIP34Hash;
/** Block height at which BIP65 becomes active */
int BIP65Height;
/** Block height at which BIP66 becomes active */
int BIP66Height;
/** Block height at which CSV (BIP68, BIP112 and BIP113) becomes active */
int CSVHeight;
/** Block height at which UAHF kicks in */
int uahfHeight;
/** Block height at which the new DAA becomes active */
int daaHeight;
/** Block height at which the magnetic anomaly activation becomes active */
int magneticAnomalyHeight;
/** Unix time used for MTP activation of 15 May 2019 12:00:00 UTC upgrade */
int greatWallActivationTime;
/** Unix time used for MTP activation of Nov 15 2019 12:00:00 UTC upgrade */
int gravitonActivationTime;
/**
* Minimum blocks including miner confirmation of the total of 2016 blocks
* in a retargeting period, (nPowTargetTimespan / nPowTargetSpacing) which
* is also used for BIP9 deployments.
* Examples: 1916 for 95%, 1512 for testchains.
*/
uint32_t nRuleChangeActivationThreshold;
uint32_t nMinerConfirmationWindow;
BIP9Deployment vDeployments[MAX_VERSION_BITS_DEPLOYMENTS];
/** Proof of work parameters */
uint256 powLimit;
bool fPowAllowMinDifficultyBlocks;
bool fPowNoRetargeting;
int64_t nPowTargetSpacing;
int64_t nPowTargetTimespan;
int64_t DifficultyAdjustmentInterval() const {
return nPowTargetTimespan / nPowTargetSpacing;
}
uint256 nMinimumChainWork;
uint256 defaultAssumeValid;
};
} // namespace Consensus
#endif // BITCOIN_CONSENSUS_PARAMS_H

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