1 /*
2  * Copyright (c) 2023-2024 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 HIVIEW_BASE_EVENT_STORE_UTILITY_SYS_EVENT_DOC_WRITER_H
17 #define HIVIEW_BASE_EVENT_STORE_UTILITY_SYS_EVENT_DOC_WRITER_H
18 
19 #include <fstream>
20 #include <memory>
21 #include <string>
22 
23 #include "event_doc_writer.h"
24 
25 namespace OHOS {
26 namespace HiviewDFX {
27 namespace EventStore {
28 class SysEventDocWriter : public EventDocWriter {
29 public:
30     SysEventDocWriter(const std::string& path);
31     ~SysEventDocWriter();
32     int Write(const std::shared_ptr<SysEvent>& sysEvent);
33 
34 private:
35     int WriteHeader(const std::shared_ptr<SysEvent>& sysEvent, uint32_t contentSize);
36     int WriteContent(const std::shared_ptr<SysEvent>& sysEvent, uint32_t contentSize);
37     uint32_t GetCurrPageRemainSize(int fileSize, uint32_t pageSize);
38     int FillCurrPageWithZero(uint32_t remainSize);
39     int GetContentSize(const std::shared_ptr<SysEvent>& sysEvent, uint32_t& contentSize);
40 
41 private:
42     std::ofstream out_;
43     uint32_t headerSize_ = 0;
44 }; // EventDocWriter
45 } // EventStore
46 } // HiviewDFX
47 } // OHOS
48 #endif // HIVIEW_BASE_EVENT_STORE_UTILITY_SYS_EVENT_DOC_WRITER_H
49