1 /*
2 * Copyright (c) 2023 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 #include "scene_board_judgement.h"
17
18 namespace OHOS {
19 namespace Rosen {
IsSceneBoardEnabled()20 bool SceneBoardJudgement::IsSceneBoardEnabled()
21 {
22 static bool isSceneBoardEnabled = false;
23 static bool initialized = false;
24 static std::mutex scbEnabledMutex;
25 if (!initialized) {
26 std::lock_guard<std::mutex> lock(scbEnabledMutex);
27 InitWithConfigFile("/etc/sceneboard.config", isSceneBoardEnabled);
28 initialized = true;
29 }
30 return isSceneBoardEnabled;
31 }
32
SafeGetLine(std::ifstream & configFile,std::string & line)33 std::ifstream& SceneBoardJudgement::SafeGetLine(std::ifstream& configFile, std::string& line)
34 {
35 std::getline(configFile, line);
36 if (line.size() && line[line.size() - 1] == '\r') {
37 line = line.substr(0, line.size() - 1);
38 }
39 return configFile;
40 }
41
InitWithConfigFile(const char * filePath,bool & enabled)42 void SceneBoardJudgement::InitWithConfigFile(const char* filePath, bool& enabled)
43 {
44 std::ifstream configFile(filePath);
45 std::string line;
46 if (configFile.is_open() && SafeGetLine(configFile, line) && line == "ENABLED") {
47 enabled = true;
48 }
49 configFile.close();
50 }
51 } // namespace Rosen
52 } // namespace OHOS
53