| // |
| // Copyright 2015 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #pragma once |
| |
| #include <cstdint> |
| #include <vector> |
| |
| extern "C" { |
| #include "hci/include/hci_hal.h" |
| } // extern "C" |
| |
| namespace test_vendor_lib { |
| |
| // Abstract base class that manages a contiguous block of data and is |
| // subclassed to provide type-specifc accessors on said data. Manages the data's |
| // memory and guarantees the data's persistence for IO operations. |
| class Packet { |
| public: |
| virtual ~Packet() = default; |
| |
| // Returns the size in octets of the entire packet, which consists of the type |
| // octet, the header, and the payload. |
| size_t GetPacketSize() const; |
| |
| const std::vector<std::uint8_t>& GetPayload() const; |
| |
| std::uint8_t GetPayloadSize() const; |
| |
| const std::vector<std::uint8_t>& GetHeader() const; |
| |
| std::uint8_t GetHeaderSize() const; |
| |
| serial_data_type_t GetType() const; |
| |
| // Validates the packet by checking that the payload size in the header is |
| // accurate. If the size is not valid, returns false. Otherwise, the data in |
| // |header| and |payload| is copied into |header_| and |payload_| |
| // respectively. If an error occurs while the data is being copied, the |
| // contents of |header| and |payload| are guaranteed to be preserved. The |
| // packet object will assume ownership of the copied data for its entire |
| // lifetime. |
| bool Encode(const std::vector<std::uint8_t>& header, |
| const std::vector<std::uint8_t>& payload); |
| |
| protected: |
| // Constructs an empty packet of type |type|. A call to Encode() shall be made |
| // to check and fill in the packet's data. |
| Packet(serial_data_type_t type); |
| |
| private: |
| // Underlying containers for storing the actual packet, broken down into the |
| // packet header and the packet payload. Data is copied into the vectors |
| // during the constructor and becomes accessible (read only) to children |
| // through GetHeader() and GetPayload(). |
| std::vector<std::uint8_t> header_; |
| |
| std::vector<std::uint8_t> payload_; |
| |
| // The packet type is one of DATA_TYPE_ACL, DATA_TYPE_COMMAND, |
| // DATA_TYPE_EVENT, or DATA_TYPE_SCO. |
| serial_data_type_t type_; |
| }; |
| |
| } // namespace test_vendor_lib |