mirror of
https://github.com/dashpay/dash.git
synced 2024-12-28 05:23:01 +01:00
f456edb07e
* Merge #13311: Don't edit Chainparams after initialization 6fa901fb47 Don't edit Chainparams after initialization (Jorge Timón) 980b38f8a1 MOVEONLY: Move versionbits info out of versionbits.o (Jorge Timón) Pull request description: This encapsulates the "-vbparams" option, which is only meant for regtest, directly on CRegTestParams. This is a refactor and doesn't change functionality. Related to https://github.com/bitcoin/bitcoin/pull/8994 Tree-SHA512: 79771d729a63a720e743a9c77d5e2d80369f072d66202a43c1304e83a7d0ef7c6103d4968a03aea9666cc89a7203c618da972124a677b38cfe62ddaeb28f9f5d * Resolve Merge with #13311 * Incorporated review changes * Apply suggestions from code review * Update src/chainparams.cpp * Update src/chainparams.cpp Co-authored-by: PastaPastaPasta <6443210+PastaPastaPasta@users.noreply.github.com> * Apply suggestions from code review Co-authored-by: PastaPastaPasta <6443210+PastaPastaPasta@users.noreply.github.com> Co-authored-by: MarcoFalke <falke.marco@gmail.com> Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com> Co-authored-by: PastaPastaPasta <6443210+PastaPastaPasta@users.noreply.github.com>
72 lines
3.0 KiB
C++
72 lines
3.0 KiB
C++
// Copyright (c) 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_VERSIONBITS_H
|
|
#define BITCOIN_VERSIONBITS_H
|
|
|
|
#include <chain.h>
|
|
#include <map>
|
|
|
|
/** What block version to use for new blocks (pre versionbits) */
|
|
static const int32_t VERSIONBITS_LAST_OLD_BLOCK_VERSION = 4;
|
|
/** What bits to set in version for versionbits blocks */
|
|
static const int32_t VERSIONBITS_TOP_BITS = 0x20000000UL;
|
|
/** What bitmask determines whether versionbits is in use */
|
|
static const int32_t VERSIONBITS_TOP_MASK = 0xE0000000UL;
|
|
/** Total bits available for versionbits */
|
|
static const int32_t VERSIONBITS_NUM_BITS = 29;
|
|
|
|
enum class ThresholdState {
|
|
DEFINED,
|
|
STARTED,
|
|
LOCKED_IN,
|
|
ACTIVE,
|
|
FAILED,
|
|
};
|
|
|
|
// A map that gives the state for blocks whose height is a multiple of Period().
|
|
// The map is indexed by the block's parent, however, so all keys in the map
|
|
// will either be nullptr or a block with (height + 1) % Period() == 0.
|
|
typedef std::map<const CBlockIndex*, ThresholdState> ThresholdConditionCache;
|
|
|
|
struct BIP9Stats {
|
|
int period;
|
|
int threshold;
|
|
int elapsed;
|
|
int count;
|
|
bool possible;
|
|
};
|
|
|
|
/**
|
|
* Abstract class that implements BIP9-style threshold logic, and caches results.
|
|
*/
|
|
class AbstractThresholdConditionChecker {
|
|
protected:
|
|
virtual bool Condition(const CBlockIndex* pindex, const Consensus::Params& params) const =0;
|
|
virtual int64_t BeginTime(const Consensus::Params& params) const =0;
|
|
virtual int64_t EndTime(const Consensus::Params& params) const =0;
|
|
virtual int Period(const Consensus::Params& params) const =0;
|
|
virtual int Threshold(const Consensus::Params& params, int nAttempt) const =0;
|
|
|
|
public:
|
|
BIP9Stats GetStateStatisticsFor(const CBlockIndex* pindex, const Consensus::Params& params, ThresholdConditionCache& cache) const;
|
|
// Note that the functions below take a pindexPrev as input: they compute information for block B based on its parent.
|
|
ThresholdState GetStateFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const;
|
|
int GetStateSinceHeightFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const;
|
|
};
|
|
|
|
struct VersionBitsCache
|
|
{
|
|
ThresholdConditionCache caches[Consensus::MAX_VERSION_BITS_DEPLOYMENTS];
|
|
|
|
void Clear();
|
|
};
|
|
|
|
ThresholdState VersionBitsState(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
|
|
BIP9Stats VersionBitsStatistics(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
|
|
int VersionBitsStateSinceHeight(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
|
|
uint32_t VersionBitsMask(const Consensus::Params& params, Consensus::DeploymentPos pos);
|
|
|
|
#endif // BITCOIN_VERSIONBITS_H
|