gate

package

v1.0.0 Latest Latest Go to latest Published: Apr 5, 2021 License: GPL-3.0 Imports: 10 Imported by: 0

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func Hash(key []byte) uint32

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

TODO the routing logic is not the key point of this project, thus here is the simplest implementation. Cannot be used in product.

func NewGate(store *topo.Store) (*Gate, error)

func (g *Gate) Close() (err error)

func (g *Gate) Get(ctx context.Context, key string, opt types.KVCCReadOption) (types.ValueCC, error)

func (g *Gate) MustRoute(key types.TxnKeyUnion) *Shard

func (g *Gate) RemoveTxnRecord(ctx context.Context, version uint64, opt types.KVCCRemoveTxnRecordOption) error

func (g *Gate) RollbackKey(ctx context.Context, key string, version uint64, opt types.KVCCRollbackKeyOption) error

func (g *Gate) Route(key types.TxnKeyUnion) (*Shard, error)

func (g *Gate) Set(ctx context.Context, key string, val types.Value, opt types.KVCCWriteOption) error

func (g *Gate) UpdateMeta(ctx context.Context, key string, version uint64, opt types.KVCCUpdateMetaOption) error

type ReadOnlyKV struct {
	*Gate
}

Use a gate as a kv server

func NewReadOnlyKV(gate *Gate) *ReadOnlyKV

func (kv *ReadOnlyKV) Get(ctx context.Context, key string, opt types.KVReadOption) (types.Value, error)

func (kv *ReadOnlyKV) Set(context.Context, string, types.Value, types.KVWriteOption) error

type Shard struct {
	types.KVCC

	ID int
}

func NewShard(g *topo.Group) (*Shard, error)