| // |
| // 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 <memory> |
| #include <vector> |
| |
| #include "command_packet.h" |
| #include "event_packet.h" |
| #include "packet.h" |
| |
| namespace test_vendor_lib { |
| |
| // Provides abstractions for IO with Packet objects. Used to receive commands |
| // and data from the HCI and to send controller events back to the host. |
| class PacketStream { |
| public: |
| PacketStream() = default; |
| |
| virtual ~PacketStream() = default; |
| |
| // Reads a command packet from the file descriptor at |fd| and returns the |
| // packet back to the caller, along with the responsibility of managing the |
| // packet. |
| std::unique_ptr<CommandPacket> ReceiveCommand(int fd) const; |
| |
| // Reads a single octet from |fd| and interprets it as a packet type octet. |
| // Validates the type octet for correctness. |
| serial_data_type_t ReceivePacketType(int fd) const; |
| |
| // Sends an event to file descriptor |fd|. The ownership of the event is left |
| // with the caller. |
| bool SendEvent(std::unique_ptr<EventPacket> event, int fd) const; |
| |
| private: |
| // Checks if |type| is in the valid range from DATA_TYPE_COMMAND to |
| // DATA_TYPE_SCO. |
| bool ValidateTypeOctet(serial_data_type_t type) const; |
| |
| // Attempts to receive |num_octets_to_receive| into |destination| from |fd|, |
| // returning false if an error occurs. |
| bool ReceiveAll(std::vector<uint8_t>& destination, |
| size_t num_octets_to_receive, int fd) const; |
| |
| // Attempts to send |num_octets_to_send| from |source| to |fd|, returning |
| // false if an error occurs. |
| bool SendAll(const std::vector<uint8_t>& source, size_t num_octets_to_send, |
| int fd) const; |
| }; |
| |
| } // namespace test_vendor_lib |