mirror of
https://github.com/cubefs/cubefs.git
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62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
// Copyright 2018 The CubeFS Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package authnode
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import (
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"fmt"
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"io"
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"github.com/tecbot/gorocksdb"
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)
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// KeystoreSnapshot represents the snapshot of a keystore partition
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type KeystoreSnapshot struct {
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fsm *KeystoreFsm
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applied uint64
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snapshot *gorocksdb.Snapshot
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iterator *gorocksdb.Iterator
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}
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// ApplyIndex implements the Snapshot interface
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func (ms *KeystoreSnapshot) ApplyIndex() uint64 {
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return ms.applied
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}
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// Close implements the Snapshot interface
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func (ms *KeystoreSnapshot) Close() {
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ms.fsm.store.ReleaseSnapshot(ms.snapshot)
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}
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// Next implements the Snapshot interface
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func (ms *KeystoreSnapshot) Next() (data []byte, err error) {
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md := new(RaftCmd)
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if ms.iterator.Valid() {
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key := ms.iterator.Key()
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md.K = string(key.Data())
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md.setOpType()
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value := ms.iterator.Value()
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if value != nil {
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md.V = value.Data()
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}
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if data, err = md.Marshal(); err != nil {
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err = fmt.Errorf("action[Next],marshal kv:%v,err:%v", md, err.Error())
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return nil, err
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}
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ms.iterator.Next()
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return data, nil
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}
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return nil, io.EOF
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}
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