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 #ifndef AUDIO_SHARED_MEMORY_H
17 #define AUDIO_SHARED_MEMORY_H
18 
19 #include <string>
20 #include "stdint.h"
21 
22 #include "message_parcel.h"
23 
24 namespace OHOS {
25 namespace AudioStandard {
26 class AudioSharedMemory {
27 public:
28     virtual ~AudioSharedMemory() = default;
29 
30     virtual uint8_t *GetBase() = 0;
31     virtual size_t GetSize() = 0;
32     virtual int GetFd() = 0;
33     virtual std::string GetName() = 0;
34 
35     static std::shared_ptr<AudioSharedMemory> CreateFormLocal(size_t size, const std::string &name);
36     static std::shared_ptr<AudioSharedMemory> CreateFromRemote(int fd, size_t size, const std::string &name);
37 
38     static int32_t WriteToParcel(const std::shared_ptr<AudioSharedMemory> &memory, MessageParcel &parcel);
39     static std::shared_ptr<AudioSharedMemory> ReadFromParcel(MessageParcel &parcel);
40 };
41 } // namespace AudioStandard
42 } // namespace OHOS
43 #endif // AUDIO_SHARED_MEMORY_H
44