state

package
v0.1.0 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Nov 14, 2023 License: Apache-2.0 Imports: 33 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// MetricsSubsystem is a subsystem shared by all metrics exposed by this
	// package.
	MetricsSubsystem = "state"
)

Variables

View Source 
var (
	ErrFinalizeBlockResponsesNotPersisted = errors.New("node is not persisting finalize block responses")
	ErrPrunerCannotLowerRetainHeight      = errors.New("cannot set a height lower than previously requested - heights might have already been pruned")
	ErrInvalidRetainHeight                = errors.New("retain height cannot be less or equal than 0")
)
View Source 
var (
	AppRetainHeightKey            = []byte("AppRetainHeightKey")
	CompanionBlockRetainHeightKey = []byte("DCBlockRetainHeightKey")
	ABCIResultsRetainHeightKey    = []byte("ABCIResRetainHeightKey")
)
View Source 
var (
	ErrKeyNotFound        = errors.New("key not found")
	ErrInvalidHeightValue = errors.New("invalid height value")
)
View Source 
var InitStateVersion = cmtstate.Version{
	Consensus: cmtversion.Consensus{
		Block: version.BlockProtocol,
		App:   0,
	},
	Software: version.TMCoreSemVer,
}

InitStateVersion sets the Consensus.Block and Software versions, but leaves the Consensus.App version blank. The Consensus.App version will be set during the Handshake, once we hear from the app what protocol version it is running.

Functions

func BuildExtendedCommitInfo 

func BuildExtendedCommitInfo(ec *types.ExtendedCommit, valSet *types.ValidatorSet, initialHeight int64, ap types.ABCIParams) abci.ExtendedCommitInfo

BuildExtendedCommitInfo builds an ExtendedCommitInfo from the given block and validator set. If you want to load the validator set from the store instead of providing it, use buildExtendedCommitInfoFromStore.

func BuildLastCommitInfo 

func BuildLastCommitInfo(block *types.Block, lastValSet *types.ValidatorSet, initialHeight int64) abci.CommitInfo

BuildLastCommitInfo builds a CommitInfo from the given block and validator set. If you want to load the validator set from the store instead of providing it, use buildLastCommitInfoFromStore.

func ExecCommitBlock 

func ExecCommitBlock(
	appConnConsensus proxy.AppConnConsensus,
	block *types.Block,
	logger log.Logger,
	store Store,
	initialHeight int64,
) ([]byte, error)

ExecCommitBlock executes and commits a block on the proxyApp without validating or mutating the state. It returns the application root hash (result of abci.Commit).

func IsEmpty 

func IsEmpty(store dbStore) (bool, error)

func MakeGenesisDocFromFile 

func MakeGenesisDocFromFile(genDocFile string) (*types.GenesisDoc, error)

MakeGenesisDocFromFile reads and unmarshals genesis doc from the given file.

func MedianTime 

func MedianTime(commit *types.Commit, validators *types.ValidatorSet) time.Time

MedianTime computes a median time for a given Commit (based on Timestamp field of votes messages) and the corresponding validator set. The computed time is always between timestamps of the votes sent by honest processes, i.e., a faulty processes can not arbitrarily increase or decrease the computed value.

func Rollback 

func Rollback(bs BlockStore, ss Store, removeBlock bool) (int64, []byte, error)

Rollback overwrites the current CometBFT state (height n) with the most recent previous state (height n - 1). Note that this function does not affect application state.

func TxPostCheck 

func TxPostCheck(state State) mempl.PostCheckFunc

TxPostCheck returns a function to filter transactions after processing. The function limits the gas wanted by a transaction to the block's maximum total gas.

func TxPreCheck 

func TxPreCheck(state State) mempl.PreCheckFunc

TxPreCheck returns a function to filter transactions before processing. The function limits the size of a transaction to the block's maximum data size.

func TxResultsHash 

func TxResultsHash(txResults []*abci.ExecTxResult) []byte

TxResultsHash returns the root hash of a Merkle tree of ExecTxResulst responses (see ABCIResults.Hash)

See merkle.SimpleHashFromByteSlices

Types

type ABCIResponsesPrunedInfo 

type ABCIResponsesPrunedInfo struct {
	FromHeight int64 // The height from which ABCI responses were pruned (inclusive).
	ToHeight   int64 // The height to which ABCI responses were pruned (inclusive).
}

ABCIResponsesPrunedInfo provides information about ABCI responses pruned during a single run of the pruner.

type BlockExecutor 

type BlockExecutor struct {
	// contains filtered or unexported fields
}

BlockExecutor provides the context and accessories for properly executing a block.

func NewBlockExecutor 

func NewBlockExecutor(
	stateStore Store,
	logger log.Logger,
	proxyApp proxy.AppConnConsensus,
	mempool mempool.Mempool,
	evpool EvidencePool,
	blockStore BlockStore,
	options ...BlockExecutorOption,
) *BlockExecutor

NewBlockExecutor returns a new BlockExecutor with a NopEventBus. Call SetEventBus to provide one.

func (*BlockExecutor) ApplyBlock 

func (blockExec *BlockExecutor) ApplyBlock(
	state State, blockID types.BlockID, block *types.Block,
) (State, error)

ApplyBlock validates the block against the state, executes it against the app, fires the relevant events, commits the app, and saves the new state and responses. It returns the new state. It's the only function that needs to be called from outside this package to process and commit an entire block. It takes a blockID to avoid recomputing the parts hash.

func (*BlockExecutor) Commit 

func (blockExec *BlockExecutor) Commit(
	state State,
	block *types.Block,
	abciResponse *abci.ResponseFinalizeBlock,
) (int64, error)

Commit locks the mempool, runs the ABCI Commit message, and updates the mempool. It returns the result of calling abci.Commit which is the height to retain (if any)). The application is expected to have persisted its state (if any) before returning from the ABCI Commit call. This is the only place where the application should persist its state. The Mempool must be locked during commit and update because state is typically reset on Commit and old txs must be replayed against committed state before new txs are run in the mempool, lest they be invalid.

func (*BlockExecutor) CreateProposalBlock 

func (blockExec *BlockExecutor) CreateProposalBlock(
	ctx context.Context,
	height int64,
	state State,
	lastExtCommit *types.ExtendedCommit,
	proposerAddr []byte,
) (*types.Block, error)

CreateProposalBlock calls state.MakeBlock with evidence from the evpool and txs from the mempool. The max bytes must be big enough to fit the commit. The block space is first allocated to outstanding evidence. The rest is given to txs, up to the max gas.

Contract: application will not return more bytes than are sent over the wire.

func (*BlockExecutor) ExtendVote 

func (blockExec *BlockExecutor) ExtendVote(
	ctx context.Context,
	vote *types.Vote,
	block *types.Block,
	state State,
) ([]byte, error)

func (*BlockExecutor) ProcessProposal 

func (blockExec *BlockExecutor) ProcessProposal(
	block *types.Block,
	state State,
) (bool, error)

func (*BlockExecutor) SetEventBus 

func (blockExec *BlockExecutor) SetEventBus(eventBus types.BlockEventPublisher)

SetEventBus - sets the event bus for publishing block related events. If not called, it defaults to types.NopEventBus.

func (*BlockExecutor) Store 

func (blockExec *BlockExecutor) Store() Store

func (*BlockExecutor) ValidateBlock 

func (blockExec *BlockExecutor) ValidateBlock(state State, block *types.Block) error

ValidateBlock validates the given block against the given state. If the block is invalid, it returns an error. Validation does not mutate state, but does require historical information from the stateDB, ie. to verify evidence from a validator at an old height.

func (*BlockExecutor) VerifyVoteExtension 

func (blockExec *BlockExecutor) VerifyVoteExtension(ctx context.Context, vote *types.Vote) error

type BlockExecutorOption 

type BlockExecutorOption func(executor *BlockExecutor)

func BlockExecutorWithMetrics 

func BlockExecutorWithMetrics(metrics *Metrics) BlockExecutorOption

func BlockExecutorWithPruner 

func BlockExecutorWithPruner(pruner *Pruner) BlockExecutorOption

type BlockStore 

type BlockStore interface {
	Base() int64
	Height() int64
	Size() int64

	LoadBaseMeta() *types.BlockMeta
	LoadBlockMeta(height int64) *types.BlockMeta
	LoadBlock(height int64) (*types.Block, *types.BlockMeta)

	SaveBlock(block *types.Block, blockParts *types.PartSet, seenCommit *types.Commit)
	SaveBlockWithExtendedCommit(block *types.Block, blockParts *types.PartSet, seenCommit *types.ExtendedCommit)

	PruneBlocks(height int64, state State) (uint64, int64, error)

	LoadBlockByHash(hash []byte) (*types.Block, *types.BlockMeta)
	LoadBlockMetaByHash(hash []byte) *types.BlockMeta
	LoadBlockPart(height int64, index int) *types.Part

	LoadBlockCommit(height int64) *types.Commit
	LoadSeenCommit(height int64) *types.Commit
	LoadBlockExtendedCommit(height int64) *types.ExtendedCommit

	DeleteLatestBlock() error

	Close() error
}

BlockStore defines the interface used by the ConsensusState.

type BlocksPrunedInfo 

type BlocksPrunedInfo struct {
	FromHeight int64 // The height from which blocks were pruned (inclusive).
	ToHeight   int64 // The height to which blocks were pruned (inclusive).
}

BlocksPrunedInfo provides information about blocks pruned during a single run of the pruner.

type EmptyEvidencePool 

type EmptyEvidencePool struct{}

EmptyEvidencePool is an empty implementation of EvidencePool, useful for testing. It also complies to the consensus evidence pool interface

func (EmptyEvidencePool) AddEvidence 

func (EmptyEvidencePool) AddEvidence(types.Evidence) error

func (EmptyEvidencePool) CheckEvidence 

func (EmptyEvidencePool) CheckEvidence(types.EvidenceList) error

func (EmptyEvidencePool) PendingEvidence 

func (EmptyEvidencePool) PendingEvidence(int64) (ev []types.Evidence, size int64)

func (EmptyEvidencePool) ReportConflictingVotes 

func (EmptyEvidencePool) ReportConflictingVotes(*types.Vote, *types.Vote)

func (EmptyEvidencePool) Update 

func (EmptyEvidencePool) Update(State, types.EvidenceList)

type ErrAppBlockHeightTooHigh 

type ErrAppBlockHeightTooHigh struct {
	CoreHeight int64
	AppHeight  int64
}

func (ErrAppBlockHeightTooHigh) Error 

func (e ErrAppBlockHeightTooHigh) Error() string

type ErrAppBlockHeightTooLow 

type ErrAppBlockHeightTooLow struct {
	AppHeight int64
	StoreBase int64
}

func (ErrAppBlockHeightTooLow) Error 

func (e ErrAppBlockHeightTooLow) Error() string

type ErrBlockHashMismatch 

type ErrBlockHashMismatch struct {
	CoreHash []byte
	AppHash  []byte
	Height   int64
}

func (ErrBlockHashMismatch) Error 

func (e ErrBlockHashMismatch) Error() string

type ErrCannotLoadState 

type ErrCannotLoadState struct {
	Err error
}

func (ErrCannotLoadState) Error 

func (e ErrCannotLoadState) Error() string

func (ErrCannotLoadState) Unwrap 

func (e ErrCannotLoadState) Unwrap() error

type ErrFailedToPruneBlocks 

type ErrFailedToPruneBlocks struct {
	Height int64
	Err    error
}

func (ErrFailedToPruneBlocks) Error 

func (e ErrFailedToPruneBlocks) Error() string

func (ErrFailedToPruneBlocks) Unwrap 

func (e ErrFailedToPruneBlocks) Unwrap() error

type ErrFailedToPruneStates 

type ErrFailedToPruneStates struct {
	Height int64
	Err    error
}

func (ErrFailedToPruneStates) Error 

func (e ErrFailedToPruneStates) Error() string

func (ErrFailedToPruneStates) Unwrap 

func (e ErrFailedToPruneStates) Unwrap() error

type ErrInvalidBlock 

type ErrInvalidBlock error

type ErrLastStateMismatch 

type ErrLastStateMismatch struct {
	Height int64
	Core   []byte
	App    []byte
}

func (ErrLastStateMismatch) Error 

func (e ErrLastStateMismatch) Error() string

type ErrNoABCIResponsesForHeight 

type ErrNoABCIResponsesForHeight struct {
	Height int64
}

func (ErrNoABCIResponsesForHeight) Error 

func (e ErrNoABCIResponsesForHeight) Error() string

type ErrNoConsensusParamsForHeight 

type ErrNoConsensusParamsForHeight struct {
	Height int64
}

func (ErrNoConsensusParamsForHeight) Error 

func (e ErrNoConsensusParamsForHeight) Error() string

type ErrNoValSetForHeight 

type ErrNoValSetForHeight struct {
	Height int64
}

func (ErrNoValSetForHeight) Error 

func (e ErrNoValSetForHeight) Error() string

type ErrProxyAppConn 

type ErrProxyAppConn error

type ErrPrunerFailedToGetRetainHeight 

type ErrPrunerFailedToGetRetainHeight struct {
	Which string
	Err   error
}

func (ErrPrunerFailedToGetRetainHeight) Error 

func (e ErrPrunerFailedToGetRetainHeight) Error() string

func (ErrPrunerFailedToGetRetainHeight) Unwrap 

func (e ErrPrunerFailedToGetRetainHeight) Unwrap() error

type ErrPrunerFailedToLoadState 

type ErrPrunerFailedToLoadState struct {
	Err error
}

func (ErrPrunerFailedToLoadState) Error 

func (e ErrPrunerFailedToLoadState) Error() string

func (ErrPrunerFailedToLoadState) Unwrap 

func (e ErrPrunerFailedToLoadState) Unwrap() error

type ErrStateMismatch 

type ErrStateMismatch struct {
	Got      *State
	Expected *State
}

func (ErrStateMismatch) Error 

func (e ErrStateMismatch) Error() string

type ErrUnknownBlock 

type ErrUnknownBlock struct {
	Height int64
}

func (ErrUnknownBlock) Error 

func (e ErrUnknownBlock) Error() string

type EvidencePool 

type EvidencePool interface {
	PendingEvidence(maxBytes int64) (ev []types.Evidence, size int64)
	AddEvidence(types.Evidence) error
	Update(State, types.EvidenceList)
	CheckEvidence(types.EvidenceList) error
}

EvidencePool defines the EvidencePool interface used by State.

type Metrics 

type Metrics struct {
	// Time spent processing FinalizeBlock
	BlockProcessingTime metrics.Histogram `metrics_buckettype:"lin" metrics_bucketsizes:"1, 10, 10"`

	// ConsensusParamUpdates is the total number of times the application has
	// updated the consensus params since process start.
	//metrics:Number of consensus parameter updates returned by the application since process start.
	ConsensusParamUpdates metrics.Counter

	// ValidatorSetUpdates is the total number of times the application has
	// updated the validator set since process start.
	//metrics:Number of validator set updates returned by the application since process start.
	ValidatorSetUpdates metrics.Counter

	// PruningServiceBlockRetainHeight is the accepted block
	// retain height set by the data companion
	PruningServiceBlockRetainHeight metrics.Gauge

	// PruningServiceBlockResultsRetainHeight is the accepted block results
	// retain height set by the data companion
	PruningServiceBlockResultsRetainHeight metrics.Gauge

	// PruningServiceTxIndexerRetainHeight is the accepted transactions indices
	// retain height set by the data companion
	PruningServiceTxIndexerRetainHeight metrics.Gauge

	// PruningServiceBlockIndexerRetainHeight is the accepted blocks indices
	// retain height set by the data companion
	PruningServiceBlockIndexerRetainHeight metrics.Gauge

	// ApplicationBlockRetainHeight is the accepted block
	// retain height set by the application
	ApplicationBlockRetainHeight metrics.Gauge

	// BlockStoreBaseHeight shows the first height at which
	// a block is available
	BlockStoreBaseHeight metrics.Gauge

	// ABCIResultsBaseHeight shows the first height at which
	// abci results are available
	ABCIResultsBaseHeight metrics.Gauge

	// TxIndexerBaseHeight shows the first height at which
	// tx indices are available
	TxIndexerBaseHeight metrics.Gauge

	// BlockIndexerBaseHeight shows the first height at which
	// block indices are available
	BlockIndexerBaseHeight metrics.Gauge
}

Metrics contains metrics exposed by this package.

func NopMetrics 

func NopMetrics() *Metrics

func PrometheusMetrics 

func PrometheusMetrics(namespace string, labelsAndValues ...string) *Metrics

type NoopPrunerObserver 

type NoopPrunerObserver struct{}

NoopPrunerObserver does nothing.

func (NoopPrunerObserver) PrunerPrunedABCIRes 

func (NoopPrunerObserver) PrunerPrunedABCIRes(*ABCIResponsesPrunedInfo)

PrunerPrunedABCIRes implements PrunerObserver.

func (NoopPrunerObserver) PrunerPrunedBlocks 

func (NoopPrunerObserver) PrunerPrunedBlocks(*BlocksPrunedInfo)

PrunerPrunedBlocks implements PrunerObserver.

func (NoopPrunerObserver) PrunerStarted 

func (NoopPrunerObserver) PrunerStarted(time.Duration)

PrunerStarted implements PrunerObserver.

type Pruner 

type Pruner struct {
	service.BaseService
	// contains filtered or unexported fields
}

Pruner is a service that reads the retain heights for blocks, state and ABCI results from the database and prunes the corresponding data based on the minimum retain height set. The service sleeps between each run based on the configured pruner interval, and re-evaluates the retain height.

func NewPruner 

func NewPruner(
	stateStore Store,
	bs BlockStore,
	blockIndexer indexer.BlockIndexer,
	txIndexer txindex.TxIndexer,
	logger log.Logger,
	options ...PrunerOption,
) *Pruner

NewPruner creates a service that controls background pruning of node data.

Assumes that the initial application and data companion retain heights have already been configured in the state store.

func (*Pruner) GetABCIResRetainHeight 

func (p *Pruner) GetABCIResRetainHeight() (int64, error)

GetABCIResRetainHeight is a convenience method for accessing the GetABCIResRetainHeight method of the underlying state store.

func (*Pruner) GetApplicationRetainHeight 

func (p *Pruner) GetApplicationRetainHeight() (int64, error)

GetApplicationRetainHeight is a convenience method for accessing the GetApplicationRetainHeight method of the underlying state store.

func (*Pruner) GetBlockIndexerRetainHeight 

func (p *Pruner) GetBlockIndexerRetainHeight() (int64, error)

GetBlockIndexerRetainHeight is a convenience method for accessing the GetBlockIndexerRetainHeight method of the underlying state store.

func (*Pruner) GetCompanionBlockRetainHeight 

func (p *Pruner) GetCompanionBlockRetainHeight() (int64, error)

GetCompanionBlockRetainHeight is a convenience method for accessing the GetCompanionBlockRetainHeight method of the underlying state store.

func (*Pruner) GetTxIndexerRetainHeight 

func (p *Pruner) GetTxIndexerRetainHeight() (int64, error)

GetTxIndexerRetainHeight is a convenience method for accessing the GetTxIndexerRetainHeight method of the underlying indexer

func (*Pruner) OnStart 

func (p *Pruner) OnStart() error

func (*Pruner) SetABCIResRetainHeight 

func (p *Pruner) SetABCIResRetainHeight(height int64) error

SetABCIResRetainHeight sets the retain height for ABCI responses.

If the application has set the DiscardABCIResponses flag to true, nothing will be pruned.

func (*Pruner) SetApplicationBlockRetainHeight 

func (p *Pruner) SetApplicationBlockRetainHeight(height int64) error

SetApplicationBlockRetainHeight sets the application block retain height with some basic checks on the requested height.

If a higher retain height is already set, we cannot accept the requested height because the blocks might have been pruned.

func (*Pruner) SetBlockIndexerRetainHeight 

func (p *Pruner) SetBlockIndexerRetainHeight(height int64) error

func (*Pruner) SetCompanionBlockRetainHeight 

func (p *Pruner) SetCompanionBlockRetainHeight(height int64) error

SetCompanionBlockRetainHeight sets the application block retain height with some basic checks on the requested height.

If a higher retain height is already set, we cannot accept the requested height because the blocks might have been pruned.

func (*Pruner) SetObserver 

func (p *Pruner) SetObserver(obs PrunerObserver)

func (*Pruner) SetTxIndexerRetainHeight 

func (p *Pruner) SetTxIndexerRetainHeight(height int64) error

type PrunerObserver 

type PrunerObserver interface {
	// PrunerStarted is called when the pruner's background pruning routine has
	// been started.
	PrunerStarted(interval time.Duration)
	// PrunerPrunedABCIRes is called after each successful pruning of ABCI results.
	PrunerPrunedABCIRes(prunedInfo *ABCIResponsesPrunedInfo)
	// PrunerPrunedBlocks is called after each successful pruning of blocks.
	PrunerPrunedBlocks(prunedInfo *BlocksPrunedInfo)
}

PrunerObserver allows an external observer to be notified of certain events generated by the Pruner.

type PrunerOption 

type PrunerOption func(*prunerConfig)

func WithPrunerCompanionEnabled 

func WithPrunerCompanionEnabled() PrunerOption

WithPrunerCompanionEnabled indicates to the pruner that it must respect the retain heights set by the data companion. By default, if this option is not supplied, the pruner will ignore any retain heights set by the data companion.

func WithPrunerInterval 

func WithPrunerInterval(t time.Duration) PrunerOption

WithPrunerInterval allows control over the interval between each run of the pruner.

func WithPrunerMetrics 

func WithPrunerMetrics(metrics *Metrics) PrunerOption

func WithPrunerObserver 

func WithPrunerObserver(obs PrunerObserver) PrunerOption

type State 

type State struct {
	Version cmtstate.Version

	// immutable
	ChainID       string
	InitialHeight int64 // should be 1, not 0, when starting from height 1

	// LastBlockHeight=0 at genesis (ie. block(H=0) does not exist)
	LastBlockHeight int64
	LastBlockID     types.BlockID
	LastBlockTime   time.Time

	// LastValidators is used to validate block.LastCommit.
	// Validators are persisted to the database separately every time they change,
	// so we can query for historical validator sets.
	// Note that if s.LastBlockHeight causes a valset change,
	// we set s.LastHeightValidatorsChanged = s.LastBlockHeight + 1 + 1
	// Extra +1 due to nextValSet delay.
	NextValidators              *types.ValidatorSet
	Validators                  *types.ValidatorSet
	LastValidators              *types.ValidatorSet
	LastHeightValidatorsChanged int64

	// Consensus parameters used for validating blocks.
	// Changes returned by FinalizeBlock and updated after Commit.
	ConsensusParams                  types.ConsensusParams
	LastHeightConsensusParamsChanged int64

	// Merkle root of the results from executing prev block
	LastResultsHash []byte

	// the latest AppHash we've received from calling abci.Commit()
	AppHash []byte
}

State is a short description of the latest committed block of the consensus protocol. It keeps all information necessary to validate new blocks, including the last validator set and the consensus params. All fields are exposed so the struct can be easily serialized, but none of them should be mutated directly. Instead, use state.Copy() or state.NextState(...). NOTE: not goroutine-safe.

func FromProto 

func FromProto(pb *cmtstate.State) (*State, error)

FromProto takes a state proto message & returns the local state type

func MakeGenesisState 

func MakeGenesisState(genDoc *types.GenesisDoc) (State, error)

MakeGenesisState creates state from types.GenesisDoc.

func MakeGenesisStateFromFile 

func MakeGenesisStateFromFile(genDocFile string) (State, error)

MakeGenesisStateFromFile reads and unmarshals state from the given file.

Used during replay and in tests.

func (State) Bytes 

func (state State) Bytes() []byte

Bytes serializes the State using protobuf. It panics if either casting to protobuf or serialization fails.

func (State) Copy 

func (state State) Copy() State

Copy makes a copy of the State for mutating.

func (State) Equals 

func (state State) Equals(state2 State) bool

Equals returns true if the States are identical.

func (State) IsEmpty 

func (state State) IsEmpty() bool

IsEmpty returns true if the State is equal to the empty State.

func (State) MakeBlock 

func (state State) MakeBlock(
	height int64,
	txs []types.Tx,
	lastCommit *types.Commit,
	evidence []types.Evidence,
	proposerAddress []byte,
) *types.Block

MakeBlock builds a block from the current state with the given txs, commit, and evidence. Note it also takes a proposerAddress because the state does not track rounds, and hence does not know the correct proposer. TODO: fix this!

func (*State) ToProto 

func (state *State) ToProto() (*cmtstate.State, error)

ToProto takes the local state type and returns the equivalent proto type

type Store 

type Store interface {
	// LoadFromDBOrGenesisFile loads the most recent state.
	// If the chain is new it will use the genesis file from the provided genesis file path as the current state.
	LoadFromDBOrGenesisFile(string) (State, error)
	// LoadFromDBOrGenesisDoc loads the most recent state.
	// If the chain is new it will use the genesis doc as the current state.
	LoadFromDBOrGenesisDoc(*types.GenesisDoc) (State, error)
	// Load loads the current state of the blockchain
	Load() (State, error)
	// LoadValidators loads the validator set at a given height
	LoadValidators(height int64) (*types.ValidatorSet, error)
	// LoadFinalizeBlockResponse loads the abciResponse for a given height
	LoadFinalizeBlockResponse(height int64) (*abci.ResponseFinalizeBlock, error)
	// LoadLastABCIResponse loads the last abciResponse for a given height
	LoadLastFinalizeBlockResponse(height int64) (*abci.ResponseFinalizeBlock, error)
	// LoadConsensusParams loads the consensus params for a given height
	LoadConsensusParams(height int64) (types.ConsensusParams, error)
	// Save overwrites the previous state with the updated one
	Save(state State) error
	// SaveFinalizeBlockResponse saves ABCIResponses for a given height
	SaveFinalizeBlockResponse(height int64, res *abci.ResponseFinalizeBlock) error
	// Bootstrap is used for bootstrapping state when not starting from a initial height.
	Bootstrap(state State) error
	// PruneStates takes the height from which to start pruning and which height stop at
	PruneStates(fromHeight, toHeight, evidenceThresholdHeight int64) error
	// PruneABCIResponses will prune all ABCI responses below the given height.
	PruneABCIResponses(targetRetainHeight int64) (int64, int64, error)
	// SaveApplicationRetainHeight persists the application retain height from the application
	SaveApplicationRetainHeight(height int64) error
	// GetApplicationRetainHeight returns the retain height set by the application
	GetApplicationRetainHeight() (int64, error)
	// SaveCompanionBlockRetainHeight saves the retain height set by the data companion
	SaveCompanionBlockRetainHeight(height int64) error
	// GetCompanionBlockRetainHeight returns the retain height set by the data companion
	GetCompanionBlockRetainHeight() (int64, error)
	// SaveABCIResRetainHeight persists the retain height for ABCI results set by the data companion
	SaveABCIResRetainHeight(height int64) error
	// GetABCIResRetainHeight returns the last saved retain height for ABCI results set by the data companion
	GetABCIResRetainHeight() (int64, error)
	// Saves the height at which the store is bootstrapped after out of band statesync
	SetOfflineStateSyncHeight(height int64) error
	// Gets the height at which the store is bootstrapped after out of band statesync
	GetOfflineStateSyncHeight() (int64, error)
	// Close closes the connection with the database
	Close() error
}

Store defines the state store interface

It is used to retrieve current state and save and load ABCI responses, validators and consensus parameters

func NewStore 

func NewStore(db dbm.DB, options StoreOptions) Store

NewStore creates the dbStore of the state pkg.

type StoreOptions 

type StoreOptions struct {
	// DiscardABCIResponses determines whether or not the store
	// retains all ABCIResponses. If DiscardABCIResponses is enabled,
	// the store will maintain only the response object from the latest
	// height.
	DiscardABCIResponses bool
}

Source Files

View all Source files

Directories

Path Synopsis
block
block/kv
block/null
mocks
sink/psql
Package psql implements an event sink backed by a PostgreSQL database.
 Package psql implements an event sink backed by a PostgreSQL database.
kv
mocks
null

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.