1 /* 2 * Copyright (c) 2021 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 HDF_REMOTE_SERVICE_H 17 #define HDF_REMOTE_SERVICE_H 18 19 #include "hdf_object.h" 20 #include "hdf_sbuf.h" 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif /* __cplusplus */ 25 26 struct HdfRemoteDispatcher { 27 int (*Dispatch)(struct HdfRemoteService *, int, struct HdfSBuf *, struct HdfSBuf *); 28 int (*DispatchAsync)(struct HdfRemoteService *, int, struct HdfSBuf *, struct HdfSBuf *); 29 }; 30 31 struct HdfDeathRecipient { 32 void (*OnRemoteDied)(struct HdfDeathRecipient *, struct HdfRemoteService *); 33 }; 34 35 struct HdfRemoteService { 36 struct HdfObject object_; 37 struct HdfObject *target; 38 struct HdfRemoteDispatcher *dispatcher; 39 uint64_t index; 40 }; 41 42 struct HdfRemoteService *HdfRemoteServiceObtain( 43 struct HdfObject *object, struct HdfRemoteDispatcher *dispatcher); 44 45 void HdfRemoteServiceRecycle(struct HdfRemoteService *service); 46 47 void HdfRemoteServiceAddDeathRecipient(struct HdfRemoteService *service, struct HdfDeathRecipient *recipient); 48 49 void HdfRemoteServiceRemoveDeathRecipient(struct HdfRemoteService *service, struct HdfDeathRecipient *recipient); 50 51 int HdfRemoteServiceRegister(int32_t serviceId, struct HdfRemoteService *service); 52 53 struct HdfRemoteService *HdfRemoteServiceGet(int32_t serviceId); 54 55 bool HdfRemoteServiceSetInterfaceDesc(struct HdfRemoteService *service, const char *descriptor); 56 57 bool HdfRemoteServiceWriteInterfaceToken(struct HdfRemoteService *service, struct HdfSBuf *data); 58 59 bool HdfRemoteServiceCheckInterfaceToken(struct HdfRemoteService *service, struct HdfSBuf *data); 60 61 int HdfRemoteServiceDefaultDispatch( 62 struct HdfRemoteService *service, int code, struct HdfSBuf *data, struct HdfSBuf *reply); 63 64 #ifdef __cplusplus 65 } 66 #endif /* __cplusplus */ 67 68 #endif /* HDF_REMOTE_SERVICE_H */ 69