1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef MULTI_VER_COMMIT_H
17 #define MULTI_VER_COMMIT_H
18 
19 #ifndef OMIT_MULTI_VER
20 #include <cstddef>
21 #include "ikvdb_commit.h"
22 
23 #include "multi_ver_def.h"
24 #include "macro_utils.h"
25 
26 namespace DistributedDB {
27 class MultiVerCommit final : public IKvDBCommit {
28 public:
29     MultiVerCommit();
30     ~MultiVerCommit() override;
31 
32     DISABLE_COPY_ASSIGN_MOVE(MultiVerCommit);
33 
34     Version GetCommitVersion() const override;
35     void SetCommitVersion(const Version &versionInfo) override;
36 
37     CommitID GetCommitId() const override;
38     void SetCommitId(const CommitID &id) override;
39 
40     CommitID GetLeftParentId() const override;
41     void SetLeftParentId(const CommitID &id) override;
42 
43     CommitID GetRightParentId() const override;
44     void SetRightParentId(const CommitID &id) override;
45 
46     Timestamp GetTimestamp() const override;
47     void SetTimestamp(Timestamp timestamp) override;
48 
49     bool GetLocalFlag() const override;
50     void SetLocalFlag(bool localFlag) override;
51 
52     DeviceID GetDeviceInfo() const override;
53     void SetDeviceInfo(const DeviceID &deviceInfo) override;
54 
55     bool CheckCommit() const;
56 
57 private:
58     static const size_t MAX_VERSION_INFO_LENGTH = 4096;
59     static const size_t MAX_COMMIT_ID_LENGTH = 128;
60     static const size_t MAX_COMMIT_DEV_LENGTH = 256;
61     Version versionInfo_;
62     CommitID commitID_;
63     CommitID leftParentID_;
64     CommitID rightParentID_;
65     Timestamp timestamp_;
66     bool localFlag_;
67     DeviceID deviceInfo_;
68 };
69 }
70 
71 #endif
72 #endif