blockchain

package module

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Versions in this module

v1

deprecated

v1.2.1

Jun 10, 2023

v1.2.0

Aug 8, 2019

Changes in this version

type BlockChain

+ func (b *BlockChain) IsFixSeqLocksAgendaActive() (bool, error)

+ type DuplicateDeploymentError string

+ func (e DuplicateDeploymentError) Error() string

v1.1.1

Dec 12, 2018

v1.1.0

Dec 10, 2018

Changes in this version

type BestState

+ MissedTickets []chainhash.Hash

+ NextFinalState [6]byte

+ NextPoolSize uint32

+ NextStakeDiff int64

+ NextWinningTickets []chainhash.Hash

+ PrevHash chainhash.Hash

type BlockChain

+ func (b *BlockChain) ChainWork(hash *chainhash.Hash) (*big.Int, error)

+ func (b *BlockChain) NextThresholdState(hash *chainhash.Hash, version uint32, deploymentID string) (ThresholdStateTuple, error)

+ func (b *BlockChain) StateLastChangedHeight(hash *chainhash.Hash, version uint32, deploymentID string) (int64, error)

+ type ChainTipInfo struct

+ BranchLen int64

+ Hash chainhash.Hash

+ Height int64

+ Status string

type ErrorCode

+ const ErrBadNumPayees

+ const ErrBadPayeeScriptType

+ const ErrBadPayeeScriptVersion

+ const ErrBadPayeeValue

+ const ErrImmatureTicketSpend

+ const ErrInvalidRevokeInput

+ const ErrInvalidVoteInput

+ const ErrMismatchedPayeeHash

+ const ErrTicketCommitment

+ const ErrTicketInputScript

type NotificationType

+ const NTChainReorgDone

+ const NTChainReorgStarted

+ const NTNewTipBlockChecked

v1.0.2

Aug 16, 2018

v1.0.1

Aug 9, 2018

v1.0.0

Aug 8, 2018

Changes in this version

+ const CheckpointConfirmations

+ const MaxCoinbaseScriptLen

+ const MaxSigOpsPerBlock

+ const MaxTimeOffsetSeconds

+ const MinCoinbaseScriptLen

+ const ViewpointPrevInvalidRegular

+ const ViewpointPrevInvalidStake

+ const ViewpointPrevValidInitial

+ const ViewpointPrevValidRegular

+ const ViewpointPrevValidStake

+ func BigToCompact(n *big.Int) uint32

+ func BlockOneCoinbasePaysTokens(tx *dcrutil.Tx, params *chaincfg.Params) error

+ func BuildMerkleTreeStore(transactions []*dcrutil.Tx) []*chainhash.Hash

+ func BuildMsgTxMerkleTreeStore(transactions []*wire.MsgTx) []*chainhash.Hash

+ func CalcBlockTaxSubsidy(subsidyCache *SubsidyCache, height int64, voters uint16, ...) int64

+ func CalcBlockWorkSubsidy(subsidyCache *SubsidyCache, height int64, voters uint16, ...) int64

+ func CalcStakeVoteSubsidy(subsidyCache *SubsidyCache, height int64, params *chaincfg.Params) int64

+ func CalcWork(bits uint32) *big.Int

+ func CalculateAddedSubsidy(block, parent *dcrutil.Block) int64

+ func CheckBlockSanity(block *dcrutil.Block, timeSource MedianTimeSource, ...) error

+ func CheckProofOfStake(block *dcrutil.Block, posLimit int64) error

+ func CheckProofOfWork(header *wire.BlockHeader, powLimit *big.Int) error

+ func CheckTransactionInputs(subsidyCache *SubsidyCache, tx *dcrutil.Tx, txHeight int64, ...) (int64, error)

+ func CheckTransactionSanity(tx *wire.MsgTx, params *chaincfg.Params) error

+ func CheckWorklessBlockSanity(block *dcrutil.Block, timeSource MedianTimeSource, ...) error

+ func CoinbasePaysTax(subsidyCache *SubsidyCache, tx *dcrutil.Tx, height int64, voters uint16, ...) error

+ func CompactToBig(compact uint32) *big.Int

+ func ConvertUtxosToMinimalOutputs(entry *UtxoEntry) []*stake.MinimalOutput

+ func CountP2SHSigOps(tx *dcrutil.Tx, isCoinBaseTx bool, isStakeBaseTx bool, utxoView *UtxoViewpoint) (int, error)

+ func CountSigOps(tx *dcrutil.Tx, isCoinBaseTx bool, isSSGen bool) int

+ func DisableLog()

+ func HashMerkleBranches(left *chainhash.Hash, right *chainhash.Hash) *chainhash.Hash

+ func HashToBig(hash *chainhash.Hash) *big.Int

+ func IsCoinBase(tx *dcrutil.Tx) bool

+ func IsCoinBaseTx(msgTx *wire.MsgTx) bool

+ func IsExpired(tx *dcrutil.Tx, blockHeight int64) bool

+ func IsExpiredTx(tx *wire.MsgTx, blockHeight int64) bool

+ func IsFinalizedTransaction(tx *dcrutil.Tx, blockHeight int64, blockTime time.Time) bool

+ func LockTimeToSequence(isSeconds bool, lockTime uint32) (uint32, error)

+ func SequenceLockActive(lock *SequenceLock, blockHeight int64, medianTime time.Time) bool

+ func UseLogger(logger slog.Logger)

+ func ValidateTransactionScripts(tx *dcrutil.Tx, utxoView *UtxoViewpoint, flags txscript.ScriptFlags, ...) error

+ type AssertError string

+ func (e AssertError) Error() string

+ type BehaviorFlags uint32

+ const BFFastAdd

+ const BFNoPoWCheck

+ const BFNone

+ type BestState struct

+ Bits uint32

+ BlockSize uint64

+ Hash chainhash.Hash

+ Height int64

+ MedianTime time.Time

+ NumTxns uint64

+ TotalSubsidy int64

+ TotalTxns uint64

+ type BlockAcceptedNtfnsData struct

+ BestHeight int64

+ Block *dcrutil.Block

+ ForkLen int64

+ type BlockChain struct

+ func New(config *Config) (*BlockChain, error)

+ func (b *BlockChain) BestPrevHash() chainhash.Hash

+ func (b *BlockChain) BestSnapshot() *BestState

+ func (b *BlockChain) BlockByHash(hash *chainhash.Hash) (*dcrutil.Block, error)

+ func (b *BlockChain) BlockByHeight(height int64) (*dcrutil.Block, error)

+ func (b *BlockChain) BlockHashByHeight(height int64) (*chainhash.Hash, error)

+ func (b *BlockChain) BlockHeightByHash(hash *chainhash.Hash) (int64, error)

+ func (b *BlockChain) BlockLocatorFromHash(hash *chainhash.Hash) BlockLocator

+ func (b *BlockChain) CalcNextRequiredDiffFromNode(hash *chainhash.Hash, timestamp time.Time) (uint32, error)

+ func (b *BlockChain) CalcNextRequiredDifficulty(timestamp time.Time) (uint32, error)

+ func (b *BlockChain) CalcNextRequiredStakeDifficulty() (int64, error)

+ func (b *BlockChain) CalcSequenceLock(tx *dcrutil.Tx, view *UtxoViewpoint) (*SequenceLock, error)

+ func (b *BlockChain) CalcStakeVersionByHash(hash *chainhash.Hash) (uint32, error)

+ func (b *BlockChain) CalcWantHeight(interval, height int64) int64

+ func (b *BlockChain) ChainTips() []dcrjson.GetChainTipsResult

+ func (b *BlockChain) CheckConnectBlockTemplate(block *dcrutil.Block) error

+ func (b *BlockChain) CheckExpiredTicket(hash chainhash.Hash) bool

+ func (b *BlockChain) CheckExpiredTickets(hashes []chainhash.Hash) []bool

+ func (b *BlockChain) CheckLiveTicket(hash chainhash.Hash) bool

+ func (b *BlockChain) CheckLiveTickets(hashes []chainhash.Hash) []bool

+ func (b *BlockChain) CheckMissedTickets(hashes []chainhash.Hash) []bool

+ func (b *BlockChain) Checkpoints() []chaincfg.Checkpoint

+ func (b *BlockChain) CountVoteVersion(version uint32) (uint32, error)

+ func (b *BlockChain) DisableCheckpoints(disable bool)

+ func (b *BlockChain) DisableVerify(disable bool)

+ func (b *BlockChain) EstimateNextStakeDifficulty(newTickets int64, useMaxTickets bool) (int64, error)

+ func (b *BlockChain) FetchSubsidyCache() *SubsidyCache

+ func (b *BlockChain) FetchUtxoEntry(txHash *chainhash.Hash) (*UtxoEntry, error)

+ func (b *BlockChain) FetchUtxoView(tx *dcrutil.Tx, treeValid bool) (*UtxoViewpoint, error)

+ func (b *BlockChain) ForceHeadReorganization(formerBest chainhash.Hash, newBest chainhash.Hash) error

+ func (b *BlockChain) GetOrphanRoot(hash *chainhash.Hash) *chainhash.Hash

+ func (b *BlockChain) GetStakeVersions(hash *chainhash.Hash, count int32) ([]StakeVersions, error)

+ func (b *BlockChain) GetVoteCounts(version uint32, deploymentID string) (VoteCounts, error)

+ func (b *BlockChain) GetVoteInfo(hash *chainhash.Hash, version uint32) (*VoteInfo, error)

+ func (b *BlockChain) HaveBlock(hash *chainhash.Hash) (bool, error)

+ func (b *BlockChain) HeaderByHash(hash *chainhash.Hash) (wire.BlockHeader, error)

+ func (b *BlockChain) HeaderByHeight(height int64) (wire.BlockHeader, error)

+ func (b *BlockChain) HeightRange(startHeight, endHeight int64) ([]chainhash.Hash, error)

+ func (b *BlockChain) IsCheckpointCandidate(block *dcrutil.Block) (bool, error)

+ func (b *BlockChain) IsCurrent() bool

+ func (b *BlockChain) IsKnownOrphan(hash *chainhash.Hash) bool

+ func (b *BlockChain) IsLNFeaturesAgendaActive() (bool, error)

+ func (b *BlockChain) LatestBlockLocator() (BlockLocator, error)

+ func (b *BlockChain) LatestCheckpoint() *chaincfg.Checkpoint

+ func (b *BlockChain) LiveTickets() ([]chainhash.Hash, error)

+ func (b *BlockChain) LocateBlocks(locator BlockLocator, hashStop *chainhash.Hash, maxHashes uint32) []chainhash.Hash

+ func (b *BlockChain) LocateHeaders(locator BlockLocator, hashStop *chainhash.Hash) []wire.BlockHeader

+ func (b *BlockChain) LotteryDataForBlock(hash *chainhash.Hash) ([]chainhash.Hash, int, [6]byte, error)

+ func (b *BlockChain) MainChainHasBlock(hash *chainhash.Hash) bool

+ func (b *BlockChain) MaxBlockSize() (int64, error)

+ func (b *BlockChain) MissedTickets() ([]chainhash.Hash, error)

+ func (b *BlockChain) NextLotteryData() ([]chainhash.Hash, int, [6]byte, error)

+ func (b *BlockChain) ProcessBlock(block *dcrutil.Block, flags BehaviorFlags) (int64, bool, error)

+ func (b *BlockChain) ThresholdState(hash *chainhash.Hash, version uint32, deploymentID string) (ThresholdStateTuple, error)

+ func (b *BlockChain) TicketPoolValue() (dcrutil.Amount, error)

+ func (b *BlockChain) TicketsWithAddress(address dcrutil.Address) ([]chainhash.Hash, error)

+ func (b *BlockChain) TipGeneration() ([]chainhash.Hash, error)

+ func (b *BlockChain) TotalSubsidy() int64

+ type BlockLocator []*chainhash.Hash

+ type Config struct

+ ChainParams *chaincfg.Params

+ DB database.DB

+ IndexManager IndexManager

+ Interrupt <-chan struct{}

+ Notifications NotificationCallback

+ SigCache *txscript.SigCache

+ TimeSource MedianTimeSource

+ type DeploymentError string

+ func (e DeploymentError) Error() string

+ type ErrorCode int

+ const ErrBadBlockHeight

+ const ErrBadCheckpoint

+ const ErrBadCoinbaseAmountIn

+ const ErrBadCoinbaseFraudProof

+ const ErrBadCoinbaseOutpoint

+ const ErrBadCoinbaseScriptLen

+ const ErrBadCoinbaseValue

+ const ErrBadFees

+ const ErrBadMerkleRoot

+ const ErrBadStakeVersion

+ const ErrBadStakebaseAmountIn

+ const ErrBadStakebaseScrVal

+ const ErrBadStakebaseScriptLen

+ const ErrBadStakebaseValue

+ const ErrBadTxInput

+ const ErrBadTxOutValue

+ const ErrBlockOneInputs

+ const ErrBlockOneOutputs

+ const ErrBlockOneTx

+ const ErrBlockTooBig

+ const ErrBlockVersionTooOld

+ const ErrCheckpointTimeTooOld

+ const ErrCoinbaseHeight

+ const ErrDifficultyTooLow

+ const ErrDiscordantTxTree

+ const ErrDuplicateBlock

+ const ErrDuplicateTx

+ const ErrDuplicateTxInputs

+ const ErrExpiredTx

+ const ErrExpiryTxSpentEarly

+ const ErrFirstTxNotCoinbase

+ const ErrForceReorgMissingChild

+ const ErrForceReorgWrongChain

+ const ErrForkTooOld

+ const ErrFraudAmountIn

+ const ErrFraudBlockHeight

+ const ErrFraudBlockIndex

+ const ErrFreshStakeMismatch

+ const ErrHighHash

+ const ErrImmatureSpend

+ const ErrIncongruentVotebit

+ const ErrInvalidAncestorBlock

+ const ErrInvalidEarlyFinalState

+ const ErrInvalidEarlyStakeTx

+ const ErrInvalidEarlyVoteBits

+ const ErrInvalidFinalState

+ const ErrInvalidSSGenInput

+ const ErrInvalidSSRtx

+ const ErrInvalidSSRtxInput

+ const ErrInvalidTemplateParent

+ const ErrInvalidTime

+ const ErrKnownInvalidBlock

+ const ErrMissingParent

+ const ErrMissingTxOut

+ const ErrMultipleCoinbases

+ const ErrNoStakeTx

+ const ErrNoTax

+ const ErrNoTransactions

+ const ErrNoTxInputs

+ const ErrNoTxOutputs

+ const ErrNonstandardStakeTx

+ const ErrNotEnoughStake

+ const ErrNotEnoughVotes

+ const ErrOverwriteTx

+ const ErrPoolSize

+ const ErrRegTxCreateStakeOut

+ const ErrRegTxInStakeTree

+ const ErrRevocationsMismatch

+ const ErrSSGenPayeeNum

+ const ErrSSGenPayeeOuts

+ const ErrSSGenSubsidy

+ const ErrSSRtxPayees

+ const ErrSSRtxPayeesMismatch

+ const ErrSStxCommitment

+ const ErrSStxInImmature

+ const ErrSStxInScrType

+ const ErrScriptMalformed

+ const ErrScriptValidation

+ const ErrSpendTooHigh

+ const ErrStakeBelowMinimum

+ const ErrStakeFees

+ const ErrStakeTxInRegularTree

+ const ErrTicketUnavailable

+ const ErrTimeTooNew

+ const ErrTimeTooOld

+ const ErrTooManyRevocations

+ const ErrTooManySStxs

+ const ErrTooManySigOps

+ const ErrTooManyTransactions

+ const ErrTooManyVotes

+ const ErrTxSStxOutSpend

+ const ErrTxTooBig

+ const ErrUnexpectedDifficulty

+ const ErrUnfinalizedTx

+ const ErrVotesMismatch

+ const ErrVotesOnWrongBlock

+ const ErrWrongBlockSize

+ const ErrZeroValueOutputSpend

+ func (e ErrorCode) String() string

+ type HashError string

+ func (e HashError) Error() string

+ type IndexManager interface

+ ConnectBlock func(database.Tx, *dcrutil.Block, *dcrutil.Block, *UtxoViewpoint) error

+ DisconnectBlock func(database.Tx, *dcrutil.Block, *dcrutil.Block, *UtxoViewpoint) error

+ Init func(*BlockChain, <-chan struct{}) error

+ type MedianTimeSource interface

+ AddTimeSample func(id string, timeVal time.Time)

+ AdjustedTime func() time.Time

+ Offset func() time.Duration

+ func NewMedianTime() MedianTimeSource

+ type Notification struct

+ Data interface{}

+ Type NotificationType

+ type NotificationCallback func(*Notification)

+ type NotificationType int

+ const NTBlockAccepted

+ const NTBlockConnected

+ const NTBlockDisconnected

+ const NTNewTickets

+ const NTReorganization

+ const NTSpentAndMissedTickets

+ func (n NotificationType) String() string

+ type ReorganizationNtfnsData struct

+ NewHash chainhash.Hash

+ NewHeight int64

+ OldHash chainhash.Hash

+ OldHeight int64

+ type RuleError struct

+ Description string

+ ErrorCode ErrorCode

+ func (e RuleError) Error() string

+ type SequenceLock struct

+ MinHeight int64

+ MinTime int64

+ type StakeVersions struct

+ BlockVersion int32

+ Hash chainhash.Hash

+ Height int64

+ StakeVersion uint32

+ Votes []stake.VoteVersionTuple

+ type StakeViewpoint int8

+ type SubsidyCache struct

+ func NewSubsidyCache(height int64, params *chaincfg.Params) *SubsidyCache

+ func (s *SubsidyCache) CalcBlockSubsidy(height int64) int64

+ type ThresholdState byte

+ const ThresholdActive

+ const ThresholdDefined

+ const ThresholdFailed

+ const ThresholdInvalid

+ const ThresholdLockedIn

+ const ThresholdStarted

+ func (t ThresholdState) String() string

+ type ThresholdStateTuple struct

+ Choice uint32

+ State ThresholdState

+ func (t ThresholdStateTuple) String() string

+ type TicketNotificationsData struct

+ Hash chainhash.Hash

+ Height int64

+ StakeDifficulty int64

+ TicketsMissed []chainhash.Hash

+ TicketsNew []chainhash.Hash

+ TicketsSpent []chainhash.Hash

+ type UtxoEntry struct

+ func (entry *UtxoEntry) AmountByIndex(outputIndex uint32) int64

+ func (entry *UtxoEntry) BlockHeight() int64

+ func (entry *UtxoEntry) BlockIndex() uint32

+ func (entry *UtxoEntry) Clone() *UtxoEntry

+ func (entry *UtxoEntry) HasExpiry() bool

+ func (entry *UtxoEntry) IsCoinBase() bool

+ func (entry *UtxoEntry) IsFullySpent() bool

+ func (entry *UtxoEntry) IsOutputSpent(outputIndex uint32) bool

+ func (entry *UtxoEntry) PkScriptByIndex(outputIndex uint32) []byte

+ func (entry *UtxoEntry) ScriptVersionByIndex(outputIndex uint32) uint16

+ func (entry *UtxoEntry) SpendOutput(outputIndex uint32)

+ func (entry *UtxoEntry) TransactionType() stake.TxType

+ func (entry *UtxoEntry) TxVersion() uint16

+ type UtxoViewpoint struct

+ func NewUtxoViewpoint() *UtxoViewpoint

+ func (view *UtxoViewpoint) AddTxOuts(tx *dcrutil.Tx, blockHeight int64, blockIndex uint32)

+ func (view *UtxoViewpoint) BestHash() *chainhash.Hash

+ func (view *UtxoViewpoint) Entries() map[chainhash.Hash]*UtxoEntry

+ func (view *UtxoViewpoint) LookupEntry(txHash *chainhash.Hash) *UtxoEntry

+ func (view *UtxoViewpoint) SetBestHash(hash *chainhash.Hash)

+ func (view *UtxoViewpoint) SetStakeViewpoint(sv StakeViewpoint)

+ func (view *UtxoViewpoint) StakeViewpoint() StakeViewpoint

+ type VoteCounts struct

+ Total uint32

+ TotalAbstain uint32

+ VoteChoices []uint32

+ type VoteInfo struct

+ AgendaStatus []ThresholdStateTuple

+ Agendas []chaincfg.ConsensusDeployment

+ type VoteVersionError uint32

+ func (e VoteVersionError) Error() string

Other modules containing this package

github.com/decred/dcrd/blockchain/v2

github.com/decred/dcrd/blockchain/v3

github.com/decred/dcrd/blockchain/v4

github.com/decred/dcrd/blockchain/v5

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