1 /*
2  * Copyright (c) 2024 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 #ifndef WIFI_DIRECT_TLV_PROTOCOL_H
16 #define WIFI_DIRECT_TLV_PROTOCOL_H
17 
18 #include "wifi_direct_protocol.h"
19 
20 namespace OHOS::SoftBus {
21 class TlvProtocol : public WifiDirectProtocol {
22 public:
GetType()23     ProtocolType GetType() override { return ProtocolType::TLV; };
24     void SetFormat(const ProtocolFormat &format) override;
25     ProtocolFormat GetFormat() const override;
26 
27     void Write(int key, Serializable::ValueType type, const uint8_t *value, size_t size) override;
28     bool Read(int &key, uint8_t *&value, size_t &size) override;
29 
30     void SetInput(const std::vector<uint8_t> &input) override;
31     void GetOutput(std::vector<uint8_t> &output) override;
32 
33     static constexpr int TLV_TAG_SIZE = 1;
34     static constexpr int TLV_LENGTH_SIZE1 = 1;
35     static constexpr int TLV_LENGTH_SIZE2 = 2;
36 
37 private:
38     size_t readPos_ = 0;
39     std::vector<uint8_t> data_;
40     ProtocolFormat format_ { TLV_TAG_SIZE, TLV_LENGTH_SIZE2 };
41 };
42 }
43 
44 #endif
45