1 /* 2 * Copyright (c) 2020 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 IOT_SYSPARA_API_H 17 #define IOT_SYSPARA_API_H 18 19 #include "ohos_types.h" 20 21 #ifdef __cplusplus 22 #if __cplusplus 23 extern "C" { 24 #endif 25 #endif /* __cplusplus */ 26 27 #define MAX_GET_VALUE_LEN 0x7FFFFFFF 28 #define MAX_KEY_LEN 32 29 #define MAX_VALUE_LEN 128 30 31 int GetSysParam(const char* key, char* value, unsigned int len); 32 int SetSysParam(const char* key, const char* value); 33 boolean CheckPermission(void); 34 35 #ifdef __cplusplus 36 #if __cplusplus 37 } 38 #endif 39 #endif /* __cplusplus */ 40 41 #endif // IOT_SYSPARA_API_H 42