1 /*
2  * Copyright (c) 2022 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 CGROUP_SCHED_FRAMEWORK_PROCESS_GROUP_INCLUDE_PROCESS_GROUP_UTIL_H_
17 #define CGROUP_SCHED_FRAMEWORK_PROCESS_GROUP_INCLUDE_PROCESS_GROUP_UTIL_H_
18 
19 #include <string>
20 #include "nlohmann/json.hpp"
21 
22 namespace OHOS {
23 namespace ResourceSchedule {
24 namespace CgroupSetting {
25 std::string FormatString(const char* fmt, va_list vararg);
26 
27 std::string StringPrintf(const char* fmt, ...);
28 
29 bool GetRealPath(const std::string& path, std::string& realPath);
30 
31 bool ReadFileToString(const std::string& filePath, std::string& content);
32 
33 bool WriteStringToFile(int fd, const std::string& content);
34 
35 bool WriteStringToFile(const std::string& content, const std::string& filePath);
36 
37 bool ReadFileToStringForVFS(const std::string& filePath, std::string& content);
38 
39 bool ReadFileToStringForVFSFromExecutor(int tid, std::string& content);
40 } // namespace CgroupSetting
41 } // namespace ResourceSchedule
42 } // namespace OHOS
43 
44 #endif // CGROUP_SCHED_FRAMEWORK_PROCESS_GROUP_INCLUDE_PROCESS_GROUP_UTIL_H_
45