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Documentation

Index

• func DefaultProofRuntime() (prt *merkle.ProofRuntime)
• func RequireProof(subpath string) bool
• type Store
  • func NewStore(db dbm.DB) *Store
  • func (rs *Store) CacheMultiStore() types.CacheMultiStore
  • func (rs *Store) CacheMultiStoreWithVersion(version int64) (types.CacheMultiStore, error)
  • func (rs *Store) CacheWrap() types.CacheWrap
  • func (rs *Store) CacheWrapWithTrace(_ io.Writer, _ types.TraceContext) types.CacheWrap
  • func (rs *Store) Commit() types.CommitID
  • func (rs *Store) GetCommitKVStore(key types.StoreKey) types.CommitKVStore
  • func (rs *Store) GetCommitStore(key types.StoreKey) types.CommitStore
  • func (rs *Store) GetKVStore(key types.StoreKey) types.KVStore
  • func (rs *Store) GetPruning() types.PruningOptions
  • func (rs *Store) GetStore(key types.StoreKey) types.Store
  • func (rs *Store) GetStoreType() types.StoreType
  • func (rs *Store) LastCommitID() types.CommitID
  • func (rs *Store) LoadLatestVersion() error
  • func (rs *Store) LoadLatestVersionAndUpgrade(upgrades *types.StoreUpgrades) error
  • func (rs *Store) LoadVersion(ver int64) error
  • func (rs *Store) LoadVersionAndUpgrade(ver int64, upgrades *types.StoreUpgrades) error
  • func (rs *Store) MountStoreWithDB(key types.StoreKey, typ types.StoreType, db dbm.DB)
  • func (rs *Store) Query(req msm.RequestQuery) msm.ResponseQuery
  • func (rs *Store) Restore(height uint64, format uint32, chunks <-chan io.ReadCloser, ...) error
  • func (rs *Store) SetInitialVersion(version int64) error
  • func (rs *Store) SetInterBlockCache(c types.MultiStorePersistentCache)
  • func (rs *Store) SetLazyLoading(lazyLoading bool)
  • func (rs *Store) SetPruning(pruningOpts types.PruningOptions)
  • func (rs *Store) SetTracer(w io.Writer) types.MultiStore
  • func (rs *Store) SetTracingContext(tc types.TraceContext) types.MultiStore
  • func (rs *Store) Snapshot(height uint64, format uint32) (<-chan io.ReadCloser, error)
  • func (rs *Store) TracingEnabled() bool

Functions

func DefaultProofRuntime

func DefaultProofRuntime() (prt *merkle.ProofRuntime)

XXX: This should be managed by the rootMultiStore which may want to register more proof ops?

func RequireProof

func RequireProof(subpath string) bool

RequireProof returns whether proof is required for the subpath.

Types

type Store

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

Store is composed of many CommitStores. Name contrasts with cacheMultiStore which is used for branching other MultiStores. It implements the CommitMultiStore interface.

func NewStore

func NewStore(db dbm.DB) *Store

NewStore returns a reference to a new Store object with the provided DB. The store will be created with a PruneNothing pruning strategy by default. After a store is created, KVStores must be mounted and finally LoadLatestVersion or LoadVersion must be called.

func (*Store) CacheMultiStore

func (rs *Store) CacheMultiStore() types.CacheMultiStore

CacheMultiStore creates ephemeral branch of the multi-store and returns a CacheMultiStore. It implements the MultiStore interface.

func (*Store) CacheMultiStoreWithVersion

func (rs *Store) CacheMultiStoreWithVersion(version int64) (types.CacheMultiStore, error)

CacheMultiStoreWithVersion is analogous to CacheMultiStore except that it attempts to load stores at a given version (height). An error is returned if any store cannot be loaded. This should only be used for querying and iterating at past heights.

func (*Store) CacheWrap

func (rs *Store) CacheWrap() types.CacheWrap

CacheWrap implements CacheWrapper/Store/CommitStore.

func (*Store) CacheWrapWithTrace

func (rs *Store) CacheWrapWithTrace(_ io.Writer, _ types.TraceContext) types.CacheWrap

CacheWrapWithTrace implements the CacheWrapper interface.

func (*Store) Commit

func (rs *Store) Commit() types.CommitID

Commit implements Committer/CommitStore.

func (*Store) GetCommitKVStore

func (rs *Store) GetCommitKVStore(key types.StoreKey) types.CommitKVStore

GetCommitKVStore returns a mounted CommitKVStore for a given StoreKey. If the store is wrapped in an inter-block cache, it will be unwrapped before returning.

func (*Store) GetCommitStore

func (rs *Store) GetCommitStore(key types.StoreKey) types.CommitStore

GetCommitStore returns a mounted CommitStore for a given StoreKey. If the store is wrapped in an inter-block cache, it will be unwrapped before returning.

func (*Store) GetKVStore

func (rs *Store) GetKVStore(key types.StoreKey) types.KVStore

GetKVStore returns a mounted KVStore for a given StoreKey. If tracing is enabled on the KVStore, a wrapped TraceKVStore will be returned with the root store's tracer, otherwise, the original KVStore will be returned.

NOTE: The returned KVStore may be wrapped in an inter-block cache if it is set on the root store.

func (*Store) GetPruning

func (rs *Store) GetPruning() types.PruningOptions

GetPruning fetches the pruning strategy from the root store.

func (*Store) GetStore

func (rs *Store) GetStore(key types.StoreKey) types.Store

GetStore returns a mounted Store for a given StoreKey. If the StoreKey does not exist, it will panic. If the Store is wrapped in an inter-block cache, it will be unwrapped prior to being returned.

TODO: This isn't used directly upstream. Consider returning the Store as-is instead of unwrapping.

func (*Store) GetStoreType

func (rs *Store) GetStoreType() types.StoreType

GetStoreType implements Store.

func (*Store) LastCommitID

func (rs *Store) LastCommitID() types.CommitID

LastCommitID implements Committer/CommitStore.

func (*Store) LoadLatestVersion

func (rs *Store) LoadLatestVersion() error

LoadLatestVersion implements CommitMultiStore.

func (*Store) LoadLatestVersionAndUpgrade

func (rs *Store) LoadLatestVersionAndUpgrade(upgrades *types.StoreUpgrades) error

LoadLatestVersionAndUpgrade implements CommitMultiStore

func (*Store) LoadVersion

func (rs *Store) LoadVersion(ver int64) error

LoadVersion implements CommitMultiStore.

func (*Store) LoadVersionAndUpgrade

func (rs *Store) LoadVersionAndUpgrade(ver int64, upgrades *types.StoreUpgrades) error

LoadVersionAndUpgrade allows us to rename substores while loading an older version

func (*Store) MountStoreWithDB

func (rs *Store) MountStoreWithDB(key types.StoreKey, typ types.StoreType, db dbm.DB)

MountStoreWithDB implements CommitMultiStore.

func (*Store) Query

func (rs *Store) Query(req msm.RequestQuery) msm.ResponseQuery

Query calls substore.Query with the same `req` where `req.Path` is modified to remove the substore prefix. Ie. `req.Path` here is `/<substore>/<path>`, and trimmed to `/<path>` for the substore. TODO: add proof for `multistore -> substore`.

func (*Store) Restore

func (rs *Store) Restore(
	height uint64, format uint32, chunks <-chan io.ReadCloser, ready chan<- struct{},
) error

Restore implements snapshottypes.Snapshotter.

func (*Store) SetInitialVersion

func (rs *Store) SetInitialVersion(version int64) error

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

func (*Store) SetInterBlockCache

func (rs *Store) SetInterBlockCache(c types.MultiStorePersistentCache)

SetInterBlockCache sets the Store's internal inter-block (persistent) cache. When this is defined, all CommitKVStores will be wrapped with their respective inter-block cache.

func (*Store) SetLazyLoading

func (rs *Store) SetLazyLoading(lazyLoading bool)

SetLazyLoading sets if the iavl store should be loaded lazily or not

func (*Store) SetPruning

func (rs *Store) SetPruning(pruningOpts types.PruningOptions)

SetPruning sets the pruning strategy on the root store and all the sub-stores. Note, calling SetPruning on the root store prior to LoadVersion or LoadLatestVersion performs a no-op as the stores aren't mounted yet.

func (*Store) SetTracer

func (rs *Store) SetTracer(w io.Writer) types.MultiStore

SetTracer sets the tracer for the MultiStore that the underlying stores will utilize to trace operations. A MultiStore is returned.

func (*Store) SetTracingContext

func (rs *Store) SetTracingContext(tc types.TraceContext) types.MultiStore

SetTracingContext updates the tracing context for the MultiStore by merging the given context with the existing context by key. Any existing keys will be overwritten. It is implied that the caller should update the context when necessary between tracing operations. It returns a modified MultiStore.

func (*Store) Snapshot

func (rs *Store) Snapshot(height uint64, format uint32) (<-chan io.ReadCloser, error)

Snapshot implements snapshottypes.Snapshotter. The snapshot output for a given format must be identical across nodes such that chunks from different sources fit together. If the output for a given format changes (at the byte level), the snapshot format must be bumped - see TestMultistoreSnapshot_Checksum test.

func (*Store) TracingEnabled

func (rs *Store) TracingEnabled() bool

TracingEnabled returns if tracing is enabled for the MultiStore.