types

package
v0.0.0-...-a315113 Latest Latest
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 Go to latest Published: Jun 20, 2022 License: Apache-2.0 Imports: 19 Imported by: 0

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Index

Constants

View Source 
const (
	GasIterNextCostFlatDesc = "IterNextFlat"
	GasValuePerByteDesc     = "ValuePerByte"
	GasWritePerByteDesc     = "WritePerByte"
	GasReadPerByteDesc      = "ReadPerByte"
	GasWriteCostFlatDesc    = "WriteFlat"
	GasReadCostFlatDesc     = "ReadFlat"
	GasHasDesc              = "Has"
	GasDeleteDesc           = "Delete"
)

Gas consumption descriptors.

View Source 
const (
	ProofOpIAVLCommitment         = "ics23:iavl"
	ProofOpSimpleMerkleCommitment = "ics23:simple"
	ProofOpSMTCommitment          = "ics23:smt"
)
View Source 
const (
	PruningOptionDefault    = "default"
	PruningOptionEverything = "everything"
	PruningOptionNothing    = "nothing"
	PruningOptionCustom     = "custom"
)

Pruning option string constants

View Source 
const StoreCodespace = "store"

Variables

View Source 
var (
	ErrInvalidLengthCommitInfo        = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowCommitInfo          = fmt.Errorf("proto: integer overflow")
	ErrUnexpectedEndOfGroupCommitInfo = fmt.Errorf("proto: unexpected end of group")
)
View Source 
var (
	ErrInvalidLengthListening        = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowListening          = fmt.Errorf("proto: integer overflow")
	ErrUnexpectedEndOfGroupListening = fmt.Errorf("proto: unexpected end of group")
)
View Source 
var (
	// PruneDefault defines a pruning strategy where the last 362880 heights are
	// kept in addition to every 100th and where to-be pruned heights are pruned
	// at every 10th height. The last 362880 heights are kept assuming the typical
	// block time is 5s and typical unbonding period is 21 days. If these values
	// do not match the applications' requirements, use the "custom" option.
	PruneDefault = NewPruningOptions(362880, 10)

	// PruneEverything defines a pruning strategy where all committed heights are
	// deleted, storing only the current and previous height and where to-be pruned
	// heights are pruned at every 10th height.
	PruneEverything = NewPruningOptions(2, 10)

	// PruneNothing defines a pruning strategy where all heights are kept on disk.
	PruneNothing = NewPruningOptions(0, 0)
)
View Source 
var (
	ErrInvalidProof = sdkerrors.Register(StoreCodespace, 2, "invalid proof")
)

Functions

func AssertValidKey 

func AssertValidKey(key []byte)

Check if the key is valid(key is not nil)

func AssertValidValue 

func AssertValidValue(value []byte)

Check if the value is valid(value is not nil)

func CommitmentOpDecoder 

func CommitmentOpDecoder(pop tmmerkle.ProofOp) (merkle.ProofOperator, error)

CommitmentOpDecoder takes a merkle.ProofOp and attempts to decode it into a CommitmentOp ProofOperator The proofOp.Data is just a marshalled CommitmentProof. The Key of the CommitmentOp is extracted from the unmarshalled proof.

func DiffKVStores 

func DiffKVStores(a KVStore, b KVStore, prefixesToSkip [][]byte) (kvAs, kvBs []kv.Pair)

DiffKVStores compares two KVstores and returns all the key/value pairs that differ from one another. It also skips value comparison for a set of provided prefixes.

func InclusiveEndBytes 

func InclusiveEndBytes(inclusiveBytes []byte) []byte

InclusiveEndBytes returns the []byte that would end a range query such that the input would be included

func PrefixEndBytes 

func PrefixEndBytes(prefix []byte) []byte

PrefixEndBytes returns the []byte that would end a range query for all []byte with a certain prefix Deals with last byte of prefix being FF without overflowing

func ProofOpFromMap 

func ProofOpFromMap(cmap map[string][]byte, storeName string) (ret tmmerkle.ProofOp, err error)

ProofOpFromMap generates a single proof from a map and converts it to a ProofOp.

Types

type BasicKVStore 

type BasicKVStore interface {
	// Get returns nil iff key doesn't exist. Panics on nil key.
	Get(key []byte) []byte

	// Has checks if a key exists. Panics on nil key.
	Has(key []byte) bool

	// Set sets the key. Panics on nil key or value.
	Set(key, value []byte)

	// Delete deletes the key. Panics on nil key.
	Delete(key []byte)
}

BasicKVStore is a simple interface to get/set data

type CacheKVStore 

type CacheKVStore interface {
	KVStore

	// Writes operations to underlying KVStore
	Write()
}

CacheKVStore branches a KVStore and provides read cache functionality. After calling .Write() on the CacheKVStore, all previously created CacheKVStores on the object expire.

type CacheMultiStore 

type CacheMultiStore interface {
	MultiStore
	Write() // Writes operations to underlying KVStore
}

From MultiStore.CacheMultiStore()....

type CacheWrap 

type CacheWrap interface {
	// Write syncs with the underlying store.
	Write()

	// CacheWrap recursively wraps again.
	CacheWrap() CacheWrap

	// CacheWrapWithTrace recursively wraps again with tracing enabled.
	CacheWrapWithTrace(w io.Writer, tc TraceContext) CacheWrap

	// CacheWrapWithListeners recursively wraps again with listening enabled
	CacheWrapWithListeners(storeKey StoreKey, listeners []WriteListener) CacheWrap
}

CacheWrap is the most appropriate interface for store ephemeral branching and cache. For example, IAVLStore.CacheWrap() returns a CacheKVStore. CacheWrap should not return a Committer, since Commit ephemeral store make no sense. It can return KVStore, HeapStore, SpaceStore, etc.

type CacheWrapper 

type CacheWrapper interface {
	// CacheWrap branches a store.
	CacheWrap() CacheWrap

	// CacheWrapWithTrace branches a store with tracing enabled.
	CacheWrapWithTrace(w io.Writer, tc TraceContext) CacheWrap

	// CacheWrapWithListeners recursively wraps again with listening enabled
	CacheWrapWithListeners(storeKey StoreKey, listeners []WriteListener) CacheWrap
}

type CapabilityKey 

type CapabilityKey StoreKey

CapabilityKey represent the Cosmos SDK keys for object-capability generation in the IBC protocol as defined in https://github.com/cosmos/ics/tree/master/spec/ics-005-port-allocation#data-structures

type CommitID 

type CommitID struct {
	Version int64  `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"`
	Hash    []byte `protobuf:"bytes,2,opt,name=hash,proto3" json:"hash,omitempty"`
}

CommitID defines the committment information when a specific store is committed.

func (*CommitID) Descriptor 

func (*CommitID) Descriptor() ([]byte, []int)

func (*CommitID) GetHash 

func (m *CommitID) GetHash() []byte

func (*CommitID) GetVersion 

func (m *CommitID) GetVersion() int64

func (CommitID) IsZero 

func (cid CommitID) IsZero() bool

func (*CommitID) Marshal 

func (m *CommitID) Marshal() (dAtA []byte, err error)

func (*CommitID) MarshalTo 

func (m *CommitID) MarshalTo(dAtA []byte) (int, error)

func (*CommitID) MarshalToSizedBuffer 

func (m *CommitID) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*CommitID) ProtoMessage 

func (*CommitID) ProtoMessage()

func (*CommitID) Reset 

func (m *CommitID) Reset()

func (*CommitID) Size 

func (m *CommitID) Size() (n int)

func (CommitID) String 

func (cid CommitID) String() string

func (*CommitID) Unmarshal 

func (m *CommitID) Unmarshal(dAtA []byte) error

func (*CommitID) XXX_DiscardUnknown 

func (m *CommitID) XXX_DiscardUnknown()

func (*CommitID) XXX_Marshal 

func (m *CommitID) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CommitID) XXX_Merge 

func (m *CommitID) XXX_Merge(src proto.Message)

func (*CommitID) XXX_Size 

func (m *CommitID) XXX_Size() int

func (*CommitID) XXX_Unmarshal 

func (m *CommitID) XXX_Unmarshal(b []byte) error

type CommitInfo 

type CommitInfo struct {
	Version    int64       `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"`
	StoreInfos []StoreInfo `protobuf:"bytes,2,rep,name=store_infos,json=storeInfos,proto3" json:"store_infos"`
}

CommitInfo defines commit information used by the multi-store when committing a version/height.

func (CommitInfo) CommitID 

func (ci CommitInfo) CommitID() CommitID

func (*CommitInfo) Descriptor 

func (*CommitInfo) Descriptor() ([]byte, []int)

func (*CommitInfo) GetStoreInfos 

func (m *CommitInfo) GetStoreInfos() []StoreInfo

func (*CommitInfo) GetVersion 

func (m *CommitInfo) GetVersion() int64

func (CommitInfo) Hash 

func (ci CommitInfo) Hash() []byte

Hash returns the simple merkle root hash of the stores sorted by name.

func (*CommitInfo) Marshal 

func (m *CommitInfo) Marshal() (dAtA []byte, err error)

func (*CommitInfo) MarshalTo 

func (m *CommitInfo) MarshalTo(dAtA []byte) (int, error)

func (*CommitInfo) MarshalToSizedBuffer 

func (m *CommitInfo) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (CommitInfo) ProofOp 

func (ci CommitInfo) ProofOp(storeName string) tmcrypto.ProofOp

func (*CommitInfo) ProtoMessage 

func (*CommitInfo) ProtoMessage()

func (*CommitInfo) Reset 

func (m *CommitInfo) Reset()

func (*CommitInfo) Size 

func (m *CommitInfo) Size() (n int)

func (*CommitInfo) String 

func (m *CommitInfo) String() string

func (*CommitInfo) Unmarshal 

func (m *CommitInfo) Unmarshal(dAtA []byte) error

func (*CommitInfo) XXX_DiscardUnknown 

func (m *CommitInfo) XXX_DiscardUnknown()

func (*CommitInfo) XXX_Marshal 

func (m *CommitInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CommitInfo) XXX_Merge 

func (m *CommitInfo) XXX_Merge(src proto.Message)

func (*CommitInfo) XXX_Size 

func (m *CommitInfo) XXX_Size() int

func (*CommitInfo) XXX_Unmarshal 

func (m *CommitInfo) XXX_Unmarshal(b []byte) error

type CommitKVStore 

type CommitKVStore interface {
	Committer
	KVStore
}

CommitKVStore is an interface for MultiStore.

type CommitMultiStore 

type CommitMultiStore interface {
	Committer
	MultiStore
	snapshottypes.Snapshotter

	// Mount a store of type using the given db.
	// If db == nil, the new store will use the CommitMultiStore db.
	MountStoreWithDB(key StoreKey, typ StoreType, db dbm.DB)

	// Panics on a nil key.
	GetCommitStore(key StoreKey) CommitStore

	// Panics on a nil key.
	GetCommitKVStore(key StoreKey) CommitKVStore

	// Load the latest persisted version. Called once after all calls to
	// Mount*Store() are complete.
	LoadLatestVersion() error

	// LoadLatestVersionAndUpgrade will load the latest version, but also
	// rename/delete/create sub-store keys, before registering all the keys
	// in order to handle breaking formats in migrations
	LoadLatestVersionAndUpgrade(upgrades *StoreUpgrades) error

	// LoadVersionAndUpgrade will load the named version, but also
	// rename/delete/create sub-store keys, before registering all the keys
	// in order to handle breaking formats in migrations
	LoadVersionAndUpgrade(ver int64, upgrades *StoreUpgrades) error

	// Load a specific persisted version. When you load an old version, or when
	// the last commit attempt didn't complete, the next commit after loading
	// must be idempotent (return the same commit id). Otherwise the behavior is
	// undefined.
	LoadVersion(ver int64) error

	// Set an inter-block (persistent) cache that maintains a mapping from
	// StoreKeys to CommitKVStores.
	SetInterBlockCache(MultiStorePersistentCache)

	// SetInitialVersion sets the initial version of the IAVL tree. It is used when
	// starting a new chain at an arbitrary height.
	SetInitialVersion(version int64) error

	// SetIAVLCacheSize sets the cache size of the IAVL tree.
	SetIAVLCacheSize(size int)
}

CommitMultiStore is an interface for a MultiStore without cache capabilities.

type CommitStore 

type CommitStore interface {
	Committer
	Store
}

Stores of MultiStore must implement CommitStore.

type CommitmentOp 

type CommitmentOp struct {
	Type  string
	Spec  *ics23.ProofSpec
	Key   []byte
	Proof *ics23.CommitmentProof
}

CommitmentOp implements merkle.ProofOperator by wrapping an ics23 CommitmentProof It also contains a Key field to determine which key the proof is proving. NOTE: CommitmentProof currently can either be ExistenceProof or NonexistenceProof

Type and Spec are classified by the kind of merkle proof it represents allowing the code to be reused by more types. Spec is never on the wire, but mapped from type in the code.

func NewIavlCommitmentOp 

func NewIavlCommitmentOp(key []byte, proof *ics23.CommitmentProof) CommitmentOp

func NewSimpleMerkleCommitmentOp 

func NewSimpleMerkleCommitmentOp(key []byte, proof *ics23.CommitmentProof) CommitmentOp

func NewSmtCommitmentOp 

func NewSmtCommitmentOp(key []byte, proof *ics23.CommitmentProof) CommitmentOp

func (CommitmentOp) GetKey 

func (op CommitmentOp) GetKey() []byte

func (CommitmentOp) ProofOp 

func (op CommitmentOp) ProofOp() tmmerkle.ProofOp

ProofOp implements ProofOperator interface and converts a CommitmentOp into a merkle.ProofOp format that can later be decoded by CommitmentOpDecoder back into a CommitmentOp for proof verification

func (CommitmentOp) Run 

func (op CommitmentOp) Run(args [][]byte) ([][]byte, error)

Run takes in a list of arguments and attempts to run the proof op against these arguments Returns the root wrapped in [][]byte if the proof op succeeds with given args. If not, it will return an error.

CommitmentOp will accept args of length 1 or length 0 If length 1 args is passed in, then CommitmentOp will attempt to prove the existence of the key with the value provided by args[0] using the embedded CommitmentProof and return the CommitmentRoot of the proof If length 0 args is passed in, then CommitmentOp will attempt to prove the absence of the key in the CommitmentOp and return the CommitmentRoot of the proof

type Committer 

type Committer interface {
	Commit() CommitID
	LastCommitID() CommitID

	SetPruning(PruningOptions)
	GetPruning() PruningOptions
}

something that can persist to disk

type ErrorGasOverflow 

type ErrorGasOverflow struct {
	Descriptor string
}

ErrorGasOverflow defines an error thrown when an action results gas consumption unsigned integer overflow.

type ErrorNegativeGasConsumed 

type ErrorNegativeGasConsumed struct {
	Descriptor string
}

ErrorNegativeGasConsumed defines an error thrown when the amount of gas refunded results in a negative gas consumed amount.

type ErrorOutOfGas 

type ErrorOutOfGas struct {
	Descriptor string
}

ErrorOutOfGas defines an error thrown when an action results in out of gas.

type Gas 

type Gas = uint64

Gas measured by the SDK

type GasConfig 

type GasConfig struct {
	HasCost          Gas
	DeleteCost       Gas
	ReadCostFlat     Gas
	ReadCostPerByte  Gas
	WriteCostFlat    Gas
	WriteCostPerByte Gas
	IterNextCostFlat Gas
}

GasConfig defines gas cost for each operation on KVStores

func KVGasConfig 

func KVGasConfig() GasConfig

KVGasConfig returns a default gas config for KVStores.

func TransientGasConfig 

func TransientGasConfig() GasConfig

TransientGasConfig returns a default gas config for TransientStores.

type GasMeter 

type GasMeter interface {
	GasConsumed() Gas
	GasConsumedToLimit() Gas
	GasRemaining() Gas
	Limit() Gas
	ConsumeGas(amount Gas, descriptor string)
	RefundGas(amount Gas, descriptor string)
	IsPastLimit() bool
	IsOutOfGas() bool
	String() string
}

GasMeter interface to track gas consumption

func NewGasMeter 

func NewGasMeter(limit Gas) GasMeter

NewGasMeter returns a reference to a new basicGasMeter.

func NewInfiniteGasMeter 

func NewInfiniteGasMeter() GasMeter

NewInfiniteGasMeter returns a new gas meter without a limit.

type Iterator 

type Iterator = dbm.Iterator

Iterator is an alias db's Iterator for convenience.

func KVStorePrefixIterator 

func KVStorePrefixIterator(kvs KVStore, prefix []byte) Iterator

Iterator over all the keys with a certain prefix in ascending order

func KVStorePrefixIteratorPaginated 

func KVStorePrefixIteratorPaginated(kvs KVStore, prefix []byte, page, limit uint) Iterator

KVStorePrefixIteratorPaginated returns iterator over items in the selected page. Items iterated and skipped in ascending order.

func KVStoreReversePrefixIterator 

func KVStoreReversePrefixIterator(kvs KVStore, prefix []byte) Iterator

Iterator over all the keys with a certain prefix in descending order.

func KVStoreReversePrefixIteratorPaginated 

func KVStoreReversePrefixIteratorPaginated(kvs KVStore, prefix []byte, page, limit uint) Iterator

KVStoreReversePrefixIteratorPaginated returns iterator over items in the selected page. Items iterated and skipped in descending order.

type KVPair 

type KVPair kv.Pair

key-value result for iterator queries

type KVStore 

type KVStore interface {
	Store
	BasicKVStore

	// Iterator over a domain of keys in ascending order. End is exclusive.
	// Start must be less than end, or the Iterator is invalid.
	// Iterator must be closed by caller.
	// To iterate over entire domain, use store.Iterator(nil, nil)
	// CONTRACT: No writes may happen within a domain while an iterator exists over it.
	// Exceptionally allowed for cachekv.Store, safe to write in the modules.
	Iterator(start, end []byte) Iterator

	// Iterator over a domain of keys in descending order. End is exclusive.
	// Start must be less than end, or the Iterator is invalid.
	// Iterator must be closed by caller.
	// CONTRACT: No writes may happen within a domain while an iterator exists over it.
	// Exceptionally allowed for cachekv.Store, safe to write in the modules.
	ReverseIterator(start, end []byte) Iterator
}

KVStore additionally provides iteration and deletion

type KVStoreKey 

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

KVStoreKey is used for accessing substores. Only the pointer value should ever be used - it functions as a capabilities key.

func NewKVStoreKey 

func NewKVStoreKey(name string) *KVStoreKey

NewKVStoreKey returns a new pointer to a KVStoreKey. Use a pointer so keys don't collide.

func (*KVStoreKey) Name 

func (key *KVStoreKey) Name() string

func (*KVStoreKey) String 

func (key *KVStoreKey) String() string

type MemoryStoreKey 

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

MemoryStoreKey defines a typed key to be used with an in-memory KVStore.

func NewMemoryStoreKey 

func NewMemoryStoreKey(name string) *MemoryStoreKey

func (*MemoryStoreKey) Name 

func (key *MemoryStoreKey) Name() string

Name returns the name of the MemoryStoreKey.

func (*MemoryStoreKey) String 

func (key *MemoryStoreKey) String() string

String returns a stringified representation of the MemoryStoreKey.

type MultiStore 

type MultiStore interface {
	Store

	// Branches MultiStore into a cached storage object.
	// NOTE: Caller should probably not call .Write() on each, but
	// call CacheMultiStore.Write().
	CacheMultiStore() CacheMultiStore

	// CacheMultiStoreWithVersion branches the underlying MultiStore where
	// each stored is loaded at a specific version (height).
	CacheMultiStoreWithVersion(version int64) (CacheMultiStore, error)

	// Convenience for fetching substores.
	// If the store does not exist, panics.
	GetStore(StoreKey) Store
	GetKVStore(StoreKey) KVStore

	// TracingEnabled returns if tracing is enabled for the MultiStore.
	TracingEnabled() bool

	// SetTracer sets the tracer for the MultiStore that the underlying
	// stores will utilize to trace operations. The modified MultiStore is
	// returned.
	SetTracer(w io.Writer) MultiStore

	// SetTracingContext sets the tracing context for a MultiStore. It is
	// implied that the caller should update the context when necessary between
	// tracing operations. The modified MultiStore is returned.
	SetTracingContext(TraceContext) MultiStore

	// ListeningEnabled returns if listening is enabled for the KVStore belonging the provided StoreKey
	ListeningEnabled(key StoreKey) bool

	// AddListeners adds WriteListeners for the KVStore belonging to the provided StoreKey
	// It appends the listeners to a current set, if one already exists
	AddListeners(key StoreKey, listeners []WriteListener)
}

type MultiStorePersistentCache 

type MultiStorePersistentCache interface {
	// Wrap and return the provided CommitKVStore with an inter-block (persistent)
	// cache.
	GetStoreCache(key StoreKey, store CommitKVStore) CommitKVStore

	// Return the underlying CommitKVStore for a StoreKey.
	Unwrap(key StoreKey) CommitKVStore

	// Reset the entire set of internal caches.
	Reset()
}

MultiStorePersistentCache defines an interface which provides inter-block (persistent) caching capabilities for multiple CommitKVStores based on StoreKeys.

type PaginatedIterator 

type PaginatedIterator struct {
	Iterator
	// contains filtered or unexported fields
}

PaginatedIterator is a wrapper around Iterator that iterates over values starting for given page and limit.

func (*PaginatedIterator) Next 

func (pi *PaginatedIterator) Next()

Next will panic after limit is reached.

func (*PaginatedIterator) Valid 

func (pi *PaginatedIterator) Valid() bool

Valid if below limit and underlying iterator is valid.

type PruningOptions 

type PruningOptions struct {
	// KeepRecent defines how many recent heights to keep on disk.
	KeepRecent uint64

	// Interval defines when the pruned heights are removed from disk.
	Interval uint64
}

PruningOptions defines the pruning strategy used when determining which heights are removed from disk when committing state.

func NewPruningOptions 

func NewPruningOptions(keepRecent, interval uint64) PruningOptions

func NewPruningOptionsFromString 

func NewPruningOptionsFromString(strategy string) PruningOptions

func (PruningOptions) Validate 

func (po PruningOptions) Validate() error

type Queryable 

type Queryable interface {
	Query(abci.RequestQuery) abci.ResponseQuery
}

Queryable allows a Store to expose internal state to the abci.Query interface. Multistore can route requests to the proper Store.

This is an optional, but useful extension to any CommitStore

type Store 

type Store interface {
	GetStoreType() StoreType
	CacheWrapper
}

type StoreInfo 

type StoreInfo struct {
	Name     string   `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	CommitId CommitID `protobuf:"bytes,2,opt,name=commit_id,json=commitId,proto3" json:"commit_id"`
}

StoreInfo defines store-specific commit information. It contains a reference between a store name and the commit ID.

func (*StoreInfo) Descriptor 

func (*StoreInfo) Descriptor() ([]byte, []int)

func (*StoreInfo) GetCommitId 

func (m *StoreInfo) GetCommitId() CommitID

func (StoreInfo) GetHash 

func (si StoreInfo) GetHash() []byte

GetHash returns the GetHash from the CommitID. This is used in CommitInfo.Hash()

When we commit to this in a merkle proof, we create a map of storeInfo.Name -> storeInfo.GetHash() and build a merkle proof from that. This is then chained with the substore proof, so we prove the root hash from the substore before this and need to pass that (unmodified) as the leaf value of the multistore proof.

func (*StoreInfo) GetName 

func (m *StoreInfo) GetName() string

func (*StoreInfo) Marshal 

func (m *StoreInfo) Marshal() (dAtA []byte, err error)

func (*StoreInfo) MarshalTo 

func (m *StoreInfo) MarshalTo(dAtA []byte) (int, error)

func (*StoreInfo) MarshalToSizedBuffer 

func (m *StoreInfo) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*StoreInfo) ProtoMessage 

func (*StoreInfo) ProtoMessage()

func (*StoreInfo) Reset 

func (m *StoreInfo) Reset()

func (*StoreInfo) Size 

func (m *StoreInfo) Size() (n int)

func (*StoreInfo) String 

func (m *StoreInfo) String() string

func (*StoreInfo) Unmarshal 

func (m *StoreInfo) Unmarshal(dAtA []byte) error

func (*StoreInfo) XXX_DiscardUnknown 

func (m *StoreInfo) XXX_DiscardUnknown()

func (*StoreInfo) XXX_Marshal 

func (m *StoreInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*StoreInfo) XXX_Merge 

func (m *StoreInfo) XXX_Merge(src proto.Message)

func (*StoreInfo) XXX_Size 

func (m *StoreInfo) XXX_Size() int

func (*StoreInfo) XXX_Unmarshal 

func (m *StoreInfo) XXX_Unmarshal(b []byte) error

type StoreKVPair 

type StoreKVPair struct {
	StoreKey string `protobuf:"bytes,1,opt,name=store_key,json=storeKey,proto3" json:"store_key,omitempty"`
	Delete   bool   `protobuf:"varint,2,opt,name=delete,proto3" json:"delete,omitempty"`
	Key      []byte `protobuf:"bytes,3,opt,name=key,proto3" json:"key,omitempty"`
	Value    []byte `protobuf:"bytes,4,opt,name=value,proto3" json:"value,omitempty"`
}

StoreKVPair is a KVStore KVPair used for listening to state changes (Sets and Deletes) It optionally includes the StoreKey for the originating KVStore and a Boolean flag to distinguish between Sets and Deletes

Since: cosmos-sdk 0.43

func (*StoreKVPair) Descriptor 

func (*StoreKVPair) Descriptor() ([]byte, []int)

func (*StoreKVPair) GetDelete 

func (m *StoreKVPair) GetDelete() bool

func (*StoreKVPair) GetKey 

func (m *StoreKVPair) GetKey() []byte

func (*StoreKVPair) GetStoreKey 

func (m *StoreKVPair) GetStoreKey() string

func (*StoreKVPair) GetValue 

func (m *StoreKVPair) GetValue() []byte

func (*StoreKVPair) Marshal 

func (m *StoreKVPair) Marshal() (dAtA []byte, err error)

func (*StoreKVPair) MarshalTo 

func (m *StoreKVPair) MarshalTo(dAtA []byte) (int, error)

func (*StoreKVPair) MarshalToSizedBuffer 

func (m *StoreKVPair) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*StoreKVPair) ProtoMessage 

func (*StoreKVPair) ProtoMessage()

func (*StoreKVPair) Reset 

func (m *StoreKVPair) Reset()

func (*StoreKVPair) Size 

func (m *StoreKVPair) Size() (n int)

func (*StoreKVPair) String 

func (m *StoreKVPair) String() string

func (*StoreKVPair) Unmarshal 

func (m *StoreKVPair) Unmarshal(dAtA []byte) error

func (*StoreKVPair) XXX_DiscardUnknown 

func (m *StoreKVPair) XXX_DiscardUnknown()

func (*StoreKVPair) XXX_Marshal 

func (m *StoreKVPair) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*StoreKVPair) XXX_Merge 

func (m *StoreKVPair) XXX_Merge(src proto.Message)

func (*StoreKVPair) XXX_Size 

func (m *StoreKVPair) XXX_Size() int

func (*StoreKVPair) XXX_Unmarshal 

func (m *StoreKVPair) XXX_Unmarshal(b []byte) error

type StoreKVPairWriteListener 

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

StoreKVPairWriteListener is used to configure listening to a KVStore by writing out length-prefixed protobuf encoded StoreKVPairs to an underlying io.Writer

func NewStoreKVPairWriteListener 

func NewStoreKVPairWriteListener(w io.Writer, m codec.BinaryCodec) *StoreKVPairWriteListener

NewStoreKVPairWriteListener wraps creates a StoreKVPairWriteListener with a provdied io.Writer and codec.BinaryCodec

func (*StoreKVPairWriteListener) OnWrite 

func (wl *StoreKVPairWriteListener) OnWrite(storeKey StoreKey, key []byte, value []byte, delete bool) error

OnWrite satisfies the WriteListener interface by writing length-prefixed protobuf encoded StoreKVPairs

type StoreKey 

type StoreKey interface {
	Name() string
	String() string
}

StoreKey is a key used to index stores in a MultiStore.

type StoreRename 

type StoreRename struct {
	OldKey string `json:"old_key"`
	NewKey string `json:"new_key"`
}

StoreRename defines a name change of a sub-store. All data previously under a PrefixStore with OldKey will be copied to a PrefixStore with NewKey, then deleted from OldKey store.

type StoreType 

type StoreType int

kind of store 

const (
	StoreTypeMulti StoreType = iota
	StoreTypeDB
	StoreTypeIAVL
	StoreTypeTransient
	StoreTypeMemory
	StoreTypeSMT
	StoreTypePersistent
)

func (StoreType) String 

func (st StoreType) String() string

type StoreUpgrades 

type StoreUpgrades struct {
	Added   []string      `json:"added"`
	Renamed []StoreRename `json:"renamed"`
	Deleted []string      `json:"deleted"`
}

StoreUpgrades defines a series of transformations to apply the multistore db upon load

func (*StoreUpgrades) IsAdded 

func (s *StoreUpgrades) IsAdded(key string) bool

IsDeleted returns true if the given key should be added

func (*StoreUpgrades) IsDeleted 

func (s *StoreUpgrades) IsDeleted(key string) bool

IsDeleted returns true if the given key should be deleted

func (*StoreUpgrades) RenamedFrom 

func (s *StoreUpgrades) RenamedFrom(key string) string

RenamedFrom returns the oldKey if it was renamed Returns "" if it was not renamed

type StoreWithInitialVersion 

type StoreWithInitialVersion interface {
	// SetInitialVersion sets the initial version of the IAVL tree. It is used when
	// starting a new chain at an arbitrary height.
	SetInitialVersion(version int64)
}

StoreWithInitialVersion is a store that can have an arbitrary initial version.

type TraceContext 

type TraceContext map[string]interface{}

TraceContext contains TraceKVStore context data. It will be written with every trace operation.

type TransientStoreKey 

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

TransientStoreKey is used for indexing transient stores in a MultiStore

func NewTransientStoreKey 

func NewTransientStoreKey(name string) *TransientStoreKey

Constructs new TransientStoreKey Must return a pointer according to the ocap principle

func (*TransientStoreKey) Name 

func (key *TransientStoreKey) Name() string

Implements StoreKey

func (*TransientStoreKey) String 

func (key *TransientStoreKey) String() string

Implements StoreKey

type WriteListener 

type WriteListener interface {
	// if value is nil then it was deleted
	// storeKey indicates the source KVStore, to facilitate using the the same WriteListener across separate KVStores
	// delete bool indicates if it was a delete; true: delete, false: set
	OnWrite(storeKey StoreKey, key []byte, value []byte, delete bool) error
}

WriteListener interface for streaming data out from a listenkv.Store

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