types

package
v0.47.1 Latest Latest
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 Go to latest Published: Mar 23, 2023 License: Apache-2.0 Imports: 19 Imported by: 0

Documentation

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 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 ErrInvalidProof = sdkerrors.Register(StoreCodespace, 2, "invalid proof")

Functions

func AssertValidKey 

func AssertValidKey(key []byte)

AssertValidKey checks if the key is valid(key is not nil)

func AssertValidValue 

func AssertValidValue(value []byte)

AssertValidValue checks if the value is valid(value is not nil)

func CommitmentOpDecoder added in v0.40.0 

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 added in v0.46.0 

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 added in v0.46.0 

type BasicKVStore interface {
	// Get returns nil if 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 BlockMetadata added in v0.45.12 

type BlockMetadata struct {
	RequestBeginBlock  *types.RequestBeginBlock   `protobuf:"bytes,1,opt,name=request_begin_block,json=requestBeginBlock,proto3" json:"request_begin_block,omitempty"`
	ResponseBeginBlock *types.ResponseBeginBlock  `protobuf:"bytes,2,opt,name=response_begin_block,json=responseBeginBlock,proto3" json:"response_begin_block,omitempty"`
	DeliverTxs         []*BlockMetadata_DeliverTx `protobuf:"bytes,3,rep,name=deliver_txs,json=deliverTxs,proto3" json:"deliver_txs,omitempty"`
	RequestEndBlock    *types.RequestEndBlock     `protobuf:"bytes,4,opt,name=request_end_block,json=requestEndBlock,proto3" json:"request_end_block,omitempty"`
	ResponseEndBlock   *types.ResponseEndBlock    `protobuf:"bytes,5,opt,name=response_end_block,json=responseEndBlock,proto3" json:"response_end_block,omitempty"`
	ResponseCommit     *types.ResponseCommit      `protobuf:"bytes,6,opt,name=response_commit,json=responseCommit,proto3" json:"response_commit,omitempty"`
}

BlockMetadata contains all the abci event data of a block the file streamer dump them into files together with the state changes.

func (*BlockMetadata) Descriptor added in v0.45.12 

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

func (*BlockMetadata) GetDeliverTxs added in v0.45.12 

func (m *BlockMetadata) GetDeliverTxs() []*BlockMetadata_DeliverTx

func (*BlockMetadata) GetRequestBeginBlock added in v0.45.12 

func (m *BlockMetadata) GetRequestBeginBlock() *types.RequestBeginBlock

func (*BlockMetadata) GetRequestEndBlock added in v0.45.12 

func (m *BlockMetadata) GetRequestEndBlock() *types.RequestEndBlock

func (*BlockMetadata) GetResponseBeginBlock added in v0.45.12 

func (m *BlockMetadata) GetResponseBeginBlock() *types.ResponseBeginBlock

func (*BlockMetadata) GetResponseCommit added in v0.45.12 

func (m *BlockMetadata) GetResponseCommit() *types.ResponseCommit

func (*BlockMetadata) GetResponseEndBlock added in v0.45.12 

func (m *BlockMetadata) GetResponseEndBlock() *types.ResponseEndBlock

func (*BlockMetadata) Marshal added in v0.45.12 

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

func (*BlockMetadata) MarshalTo added in v0.45.12 

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

func (*BlockMetadata) MarshalToSizedBuffer added in v0.45.12 

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

func (*BlockMetadata) ProtoMessage added in v0.45.12 

func (*BlockMetadata) ProtoMessage()

func (*BlockMetadata) Reset added in v0.45.12 

func (m *BlockMetadata) Reset()

func (*BlockMetadata) Size added in v0.45.12 

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

func (*BlockMetadata) String added in v0.45.12 

func (m *BlockMetadata) String() string

func (*BlockMetadata) Unmarshal added in v0.45.12 

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

func (*BlockMetadata) XXX_DiscardUnknown added in v0.45.12 

func (m *BlockMetadata) XXX_DiscardUnknown()

func (*BlockMetadata) XXX_Marshal added in v0.45.12 

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

func (*BlockMetadata) XXX_Merge added in v0.45.12 

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

func (*BlockMetadata) XXX_Size added in v0.45.12 

func (m *BlockMetadata) XXX_Size() int

func (*BlockMetadata) XXX_Unmarshal added in v0.45.12 

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

type BlockMetadata_DeliverTx added in v0.45.12 

type BlockMetadata_DeliverTx struct {
	Request  *types.RequestDeliverTx  `protobuf:"bytes,1,opt,name=request,proto3" json:"request,omitempty"`
	Response *types.ResponseDeliverTx `protobuf:"bytes,2,opt,name=response,proto3" json:"response,omitempty"`
}

DeliverTx encapulate deliver tx request and response.

func (*BlockMetadata_DeliverTx) Descriptor added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) GetRequest added in v0.45.12 

func (m *BlockMetadata_DeliverTx) GetRequest() *types.RequestDeliverTx

func (*BlockMetadata_DeliverTx) GetResponse added in v0.45.12 

func (m *BlockMetadata_DeliverTx) GetResponse() *types.ResponseDeliverTx

func (*BlockMetadata_DeliverTx) Marshal added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) MarshalTo added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) MarshalToSizedBuffer added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) ProtoMessage added in v0.45.12 

func (*BlockMetadata_DeliverTx) ProtoMessage()

func (*BlockMetadata_DeliverTx) Reset added in v0.45.12 

func (m *BlockMetadata_DeliverTx) Reset()

func (*BlockMetadata_DeliverTx) Size added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) String added in v0.45.12 

func (m *BlockMetadata_DeliverTx) String() string

func (*BlockMetadata_DeliverTx) Unmarshal added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) XXX_DiscardUnknown added in v0.45.12 

func (m *BlockMetadata_DeliverTx) XXX_DiscardUnknown()

func (*BlockMetadata_DeliverTx) XXX_Marshal added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) XXX_Merge added in v0.45.12 

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

func (*BlockMetadata_DeliverTx) XXX_Size added in v0.45.12 

func (m *BlockMetadata_DeliverTx) XXX_Size() int

func (*BlockMetadata_DeliverTx) XXX_Unmarshal added in v0.45.12 

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

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
}

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
}

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/ibc/tree/master/spec/core/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 commitment information when a specific store is committed.

func (*CommitID) Descriptor added in v0.40.0 

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

func (*CommitID) GetHash added in v0.40.0 

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

func (*CommitID) GetVersion added in v0.40.0 

func (m *CommitID) GetVersion() int64

func (CommitID) IsZero 

func (cid CommitID) IsZero() bool

func (*CommitID) Marshal added in v0.40.0 

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

func (*CommitID) MarshalTo added in v0.40.0 

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

func (*CommitID) MarshalToSizedBuffer added in v0.40.0 

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

func (*CommitID) ProtoMessage added in v0.40.0 

func (*CommitID) ProtoMessage()

func (*CommitID) Reset added in v0.40.0 

func (m *CommitID) Reset()

func (*CommitID) Size added in v0.40.0 

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

func (CommitID) String 

func (cid CommitID) String() string

func (*CommitID) Unmarshal added in v0.40.0 

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

func (*CommitID) XXX_DiscardUnknown added in v0.40.0 

func (m *CommitID) XXX_DiscardUnknown()

func (*CommitID) XXX_Marshal added in v0.40.0 

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

func (*CommitID) XXX_Merge added in v0.40.0 

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

func (*CommitID) XXX_Size added in v0.40.0 

func (m *CommitID) XXX_Size() int

func (*CommitID) XXX_Unmarshal added in v0.40.0 

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

type CommitInfo added in v0.40.0 

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 added in v0.40.0 

func (ci CommitInfo) CommitID() CommitID

func (*CommitInfo) Descriptor added in v0.40.0 

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

func (*CommitInfo) GetStoreInfos added in v0.40.0 

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

func (*CommitInfo) GetVersion added in v0.40.0 

func (m *CommitInfo) GetVersion() int64

func (CommitInfo) Hash added in v0.40.0 

func (ci CommitInfo) Hash() []byte

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

func (*CommitInfo) Marshal added in v0.40.0 

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

func (*CommitInfo) MarshalTo added in v0.40.0 

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

func (*CommitInfo) MarshalToSizedBuffer added in v0.40.0 

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

func (CommitInfo) ProofOp added in v0.40.0 

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

func (*CommitInfo) ProtoMessage added in v0.40.0 

func (*CommitInfo) ProtoMessage()

func (*CommitInfo) Reset added in v0.40.0 

func (m *CommitInfo) Reset()

func (*CommitInfo) Size added in v0.40.0 

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

func (*CommitInfo) String added in v0.40.0 

func (m *CommitInfo) String() string

func (*CommitInfo) Unmarshal added in v0.40.0 

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

func (*CommitInfo) XXX_DiscardUnknown added in v0.40.0 

func (m *CommitInfo) XXX_DiscardUnknown()

func (*CommitInfo) XXX_Marshal added in v0.40.0 

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

func (*CommitInfo) XXX_Merge added in v0.40.0 

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

func (*CommitInfo) XXX_Size added in v0.40.0 

func (m *CommitInfo) XXX_Size() int

func (*CommitInfo) XXX_Unmarshal added in v0.40.0 

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)

	// SetIAVLDisableFastNode enables/disables fastnode feature on iavl.
	SetIAVLDisableFastNode(disable bool)

	// SetIAVLLazyLoading enable/disable lazy loading on iavl.
	SetLazyLoading(lazyLoading bool)

	// RollbackToVersion rollback the db to specific version(height).
	RollbackToVersion(version int64) error

	// 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)
}

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 added in v0.40.0 

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 added in v0.40.0 

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

func NewSimpleMerkleCommitmentOp added in v0.40.0 

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

func NewSmtCommitmentOp added in v0.46.0 

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

func (CommitmentOp) GetKey added in v0.40.0 

func (op CommitmentOp) GetKey() []byte

func (CommitmentOp) ProofOp added in v0.40.0 

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 added in v0.40.0 

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(pruningtypes.PruningOptions)
	GetPruning() pruningtypes.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 added in v0.42.6 

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

KVStorePrefixIterator iterates 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

KVStoreReversePrefixIterator iterates 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 MemoryListener added in v0.45.12 

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

MemoryListener listens to the state writes and accumulate the records in memory.

func NewMemoryListener added in v0.45.12 

func NewMemoryListener(key StoreKey) *MemoryListener

NewMemoryListener creates a listener that accumulate the state writes in memory.

func (*MemoryListener) OnWrite added in v0.45.12 

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

OnWrite implements WriteListener interface.

func (*MemoryListener) PopStateCache added in v0.45.12 

func (fl *MemoryListener) PopStateCache() []StoreKVPair

PopStateCache returns the current state caches and set to nil.

func (*MemoryListener) StoreKey added in v0.45.12 

func (fl *MemoryListener) StoreKey() StoreKey

StoreKey returns the storeKey it listens to.

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

	// LatestVersion returns the latest version in the store
	LatestVersion() int64
}

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 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 added in v0.40.0 

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 added in v0.40.0 

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

func (*StoreInfo) GetCommitId added in v0.40.0 

func (m *StoreInfo) GetCommitId() CommitID

func (StoreInfo) GetHash added in v0.40.0 

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 added in v0.40.0 

func (m *StoreInfo) GetName() string

func (*StoreInfo) Marshal added in v0.40.0 

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

func (*StoreInfo) MarshalTo added in v0.40.0 

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

func (*StoreInfo) MarshalToSizedBuffer added in v0.40.0 

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

func (*StoreInfo) ProtoMessage added in v0.40.0 

func (*StoreInfo) ProtoMessage()

func (*StoreInfo) Reset added in v0.40.0 

func (m *StoreInfo) Reset()

func (*StoreInfo) Size added in v0.40.0 

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

func (*StoreInfo) String added in v0.40.0 

func (m *StoreInfo) String() string

func (*StoreInfo) Unmarshal added in v0.40.0 

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

func (*StoreInfo) XXX_DiscardUnknown added in v0.40.0 

func (m *StoreInfo) XXX_DiscardUnknown()

func (*StoreInfo) XXX_Marshal added in v0.40.0 

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

func (*StoreInfo) XXX_Merge added in v0.40.0 

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

func (*StoreInfo) XXX_Size added in v0.40.0 

func (m *StoreInfo) XXX_Size() int

func (*StoreInfo) XXX_Unmarshal added in v0.40.0 

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

type StoreKVPair added in v0.43.0 

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 added in v0.43.0 

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

func (*StoreKVPair) GetDelete added in v0.43.0 

func (m *StoreKVPair) GetDelete() bool

func (*StoreKVPair) GetKey added in v0.43.0 

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

func (*StoreKVPair) GetStoreKey added in v0.43.0 

func (m *StoreKVPair) GetStoreKey() string

func (*StoreKVPair) GetValue added in v0.43.0 

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

func (*StoreKVPair) Marshal added in v0.43.0 

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

func (*StoreKVPair) MarshalTo added in v0.43.0 

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

func (*StoreKVPair) MarshalToSizedBuffer added in v0.43.0 

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

func (*StoreKVPair) ProtoMessage added in v0.43.0 

func (*StoreKVPair) ProtoMessage()

func (*StoreKVPair) Reset added in v0.43.0 

func (m *StoreKVPair) Reset()

func (*StoreKVPair) Size added in v0.43.0 

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

func (*StoreKVPair) String added in v0.43.0 

func (m *StoreKVPair) String() string

func (*StoreKVPair) Unmarshal added in v0.43.0 

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

func (*StoreKVPair) XXX_DiscardUnknown added in v0.43.0 

func (m *StoreKVPair) XXX_DiscardUnknown()

func (*StoreKVPair) XXX_Marshal added in v0.43.0 

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

func (*StoreKVPair) XXX_Merge added in v0.43.0 

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

func (*StoreKVPair) XXX_Size added in v0.43.0 

func (m *StoreKVPair) XXX_Size() int

func (*StoreKVPair) XXX_Unmarshal added in v0.43.0 

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

type StoreKVPairWriteListener added in v0.43.0 

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 object.

func NewStoreKVPairWriteListener added in v0.43.0 

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

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

func (*StoreKVPairWriteListener) OnWrite added in v0.43.0 

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 added in v0.39.2 

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

IsAdded 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 added in v0.40.0 

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.

func (TraceContext) Clone added in v0.45.12 

func (tc TraceContext) Clone() TraceContext

Clone clones tc into another instance of TraceContext.

func (TraceContext) Merge added in v0.45.12 

func (tc TraceContext) Merge(newTc TraceContext) TraceContext

Merge merges value of newTc into tc.

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 added in v0.43.0 

type WriteListener interface {
	// if value is nil then it was deleted
	// storeKey indicates the source KVStore, to facilitate using 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 KVStore

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