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46 lines
1.1 KiB
46 lines
1.1 KiB
package common
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import (
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"errors"
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"io"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/syndtr/goleveldb/leveldb/util"
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)
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type TiKVStore interface {
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ethdb.KeyValueReader
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ethdb.KeyValueWriter
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ethdb.Batcher
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ethdb.Stater
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ethdb.Compacter
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io.Closer
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NewIterator(start, end []byte) ethdb.Iterator
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}
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// TiKVStoreWrapper simple wrapper to covert to ethdb.KeyValueStore
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type TiKVStoreWrapper struct {
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TiKVStore
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}
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func (t *TiKVStoreWrapper) NewIterator(prefix []byte, start []byte) ethdb.Iterator {
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return t.TiKVStore.NewIterator(nil, nil)
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}
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func (t *TiKVStoreWrapper) NewIteratorWithStart(start []byte) ethdb.Iterator {
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return t.TiKVStore.NewIterator(start, nil)
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}
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func (t *TiKVStoreWrapper) NewIteratorWithPrefix(prefix []byte) ethdb.Iterator {
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bytesPrefix := util.BytesPrefix(prefix)
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return t.TiKVStore.NewIterator(bytesPrefix.Start, bytesPrefix.Limit)
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}
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func (t *TiKVStoreWrapper) NewSnapshot() (ethdb.Snapshot, error) {
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return nil, errors.New("not supported")
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}
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func ToEthKeyValueStore(store TiKVStore) ethdb.KeyValueStore {
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return &TiKVStoreWrapper{TiKVStore: store}
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}
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