1 /* 2 * Copyright (c) 2022 HiSilicon (Shanghai) Technologies CO., LIMITED. 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 LinkServiceAgent__H 17 #define LinkServiceAgent__H 18 19 #ifdef __cplusplus 20 extern "C" { 21 #endif 22 23 typedef struct LinkServiceAgent { 24 /* 25 * this funtion to get device's property value. 26 * s : ServiceAgent 27 * property : device's property name 28 * value : a json string of device's property value 29 * len : value's length 30 * StatusOk : get value successfully 31 * StatusFailure : failure to get value 32 * StatusDeviceOfffline : device had offline 33 */ 34 int (*get)(struct LinkServiceAgent* s, const char* property, char* value, int len); 35 /* 36 * this funtion to modify device's property 37 * s : ServiceAgent 38 * property : device's property name 39 * value : a json string of device's property 40 * len : value's length 41 * StatusOk : moified value successfully 42 * StatusFailure : failure to moified value 43 * StatusDeviceOfffline : device had offline 44 */ 45 int (*modify)(struct LinkServiceAgent* s, const char* property, char* value, int len); 46 /* 47 * get device's service type 48 * if type is not null, then return a string,otherwise, 49 * a null string return 50 */ 51 const char* (*type)(struct LinkServiceAgent* s); 52 /* 53 * get address of device's service 54 */ 55 const char* (*addr)(struct LinkServiceAgent* s); 56 /* 57 * the id of device's service 58 */ 59 int (*id)(struct LinkServiceAgent* s); 60 } LinkServiceAgent; 61 62 /* 63 * free ServiceAgent that malloced by LinkAgent 64 */ 65 void LinkServiceAgentFree(LinkServiceAgent* s); 66 67 // /for C++ 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif /* __LinkServiceAgent__H__ */ 73