mirror of
https://github.com/bitcoin/bitcoin.git
synced 2025-01-28 03:57:31 -03:00
aaaaad6ac9
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2019 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 <limits>
|
|
|
|
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;
|
|
|
|
/** Constant for nTimeout very far in the future. */
|
|
static constexpr int64_t NO_TIMEOUT = std::numeric_limits<int64_t>::max();
|
|
|
|
/** Special value for nStartTime indicating that the deployment is always active.
|
|
* This is useful for testing, as it means tests don't need to deal with the activation
|
|
* process (which takes at least 3 BIP9 intervals). Only tests that specifically test the
|
|
* behaviour during activation cannot use this. */
|
|
static constexpr int64_t ALWAYS_ACTIVE = -1;
|
|
};
|
|
|
|
/**
|
|
* Parameters that influence chain consensus.
|
|
*/
|
|
struct Params {
|
|
uint256 hashGenesisBlock;
|
|
int nSubsidyHalvingInterval;
|
|
/* Block hash that is excepted from BIP16 enforcement */
|
|
uint256 BIP16Exception;
|
|
/** 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 Segwit (BIP141, BIP143 and BIP147) becomes active.
|
|
* Note that segwit v0 script rules are enforced on all blocks except the
|
|
* BIP 16 exception blocks. */
|
|
int SegwitHeight;
|
|
/** Don't warn about unknown BIP 9 activations below this height.
|
|
* This prevents us from warning about the CSV and segwit activations. */
|
|
int MinBIP9WarningHeight;
|
|
/**
|
|
* 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
|