64 lines
1.9 KiB
Go
64 lines
1.9 KiB
Go
package mem
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import (
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"io"
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dbm "github.com/tendermint/tm-db"
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"github.com/cosmos/cosmos-sdk/store/cachekv"
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"github.com/cosmos/cosmos-sdk/store/dbadapter"
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"github.com/cosmos/cosmos-sdk/store/listenkv"
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"github.com/cosmos/cosmos-sdk/store/tracekv"
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"github.com/cosmos/cosmos-sdk/store/types"
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)
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var (
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_ types.KVStore = (*Store)(nil)
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_ types.Committer = (*Store)(nil)
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)
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// Store implements an in-memory only KVStore. Entries are persisted between
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// commits and thus between blocks. State in Memory store is not committed as part of app state but maintained privately by each node
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type Store struct {
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dbadapter.Store
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}
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func NewStore() *Store {
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return NewStoreWithDB(dbm.NewMemDB())
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}
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func NewStoreWithDB(db *dbm.MemDB) *Store { // nolint: interfacer
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return &Store{Store: dbadapter.Store{DB: db}}
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}
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// GetStoreType returns the Store's type.
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func (s Store) GetStoreType() types.StoreType {
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return types.StoreTypeMemory
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}
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// CacheWrap branches the underlying store.
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func (s Store) CacheWrap() types.CacheWrap {
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return cachekv.NewStore(s)
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}
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// CacheWrapWithTrace implements KVStore.
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func (s Store) CacheWrapWithTrace(w io.Writer, tc types.TraceContext) types.CacheWrap {
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return cachekv.NewStore(tracekv.NewStore(s, w, tc))
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}
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// CacheWrapWithListeners implements the CacheWrapper interface.
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func (s Store) CacheWrapWithListeners(storeKey types.StoreKey, listeners []types.WriteListener) types.CacheWrap {
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return cachekv.NewStore(listenkv.NewStore(s, storeKey, listeners))
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}
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// Commit performs a no-op as entries are persistent between commitments.
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func (s *Store) Commit() (id types.CommitID) { return }
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func (s *Store) SetPruning(pruning types.PruningOptions) {}
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// GetPruning is a no-op as pruning options cannot be directly set on this store.
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// They must be set on the root commit multi-store.
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func (s *Store) GetPruning() types.PruningOptions { return types.PruningOptions{} }
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func (s Store) LastCommitID() (id types.CommitID) { return }
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