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 OHOS_IPC_RPC_SKELETON_H
17 #define OHOS_IPC_RPC_SKELETON_H
18 
19 #include <stdbool.h>
20 #include <stdint.h>
21 #include <sys/types.h>
22 #include <unistd.h>
23 
24 #include "serializer.h"
25 
26 #ifdef __cplusplus
27 extern "C" {
28 #endif /* __cplusplus */
29 
30 enum {
31     TF_OP_SYNC = 0x00,
32     TF_OP_ASYNC = 0x01,
33     TF_OP_STATUS_CODE = 0x08,
34     TF_OP_ACCEPT_FDS = 0x10,
35 };
36 
37 typedef struct {
38     uint32_t flags;
39     uint32_t waitTime;
40     void *args;
41 } MessageOption;
42 
43 typedef int32_t (*OnRemoteRequest)(uint32_t code, IpcIo *data, IpcIo *reply, MessageOption option);
44 typedef void (*OnRemoteDead)(void *args);
45 
46 typedef struct {
47     OnRemoteRequest func;
48     void *args;
49     bool isRemote;
50 } IpcObjectStub;
51 
52 // default is 4
53 int32_t SetMaxWorkThreadNum(int32_t maxThreadNum);
54 
55 // join current thread into work loop.
56 void JoinWorkThread(void);
57 
58 pid_t GetCallingPid(void);
59 
60 pid_t GetCallingUid(void);
61 
62 const SvcIdentity *GetContextObject(void);
63 
64 int32_t SetContextObject(SvcIdentity target);
65 
66 int32_t SendRequest(SvcIdentity target, uint32_t code, IpcIo *data, IpcIo *reply,
67     MessageOption option, uintptr_t *buffer);
68 
69 int32_t FreeBuffer(void *ptr);
70 
71 int32_t AddDeathRecipient(SvcIdentity target, OnRemoteDead deathFunc, void *args, uint32_t *cbId);
72 
73 int32_t RemoveDeathRecipient(SvcIdentity target, uint32_t cbId);
74 
75 int32_t MessageOptionInit(MessageOption *option);
76 
77 int32_t ReleaseSvc(SvcIdentity target);
78 #ifdef __cplusplus
79 }
80 #endif /* __cplusplus */
81 #endif /* OHOS_IPC_RPC_SKELETON_H */
82