vendor_libs/test_vendor_lib/packets/link_layer/command_view.h

/*
 * Copyright 2018 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 <log/log.h>

#include "packets/link_layer/link_layer_packet_view.h"
#include "packets/packet_view.h"

namespace test_vendor_lib {
namespace packets {

class CommandView : public PacketView<true> {
 public:
  CommandView(const CommandView&) = default;
  virtual ~CommandView() = default;

  static CommandView GetCommand(const LinkLayerPacketView& view) {
    CHECK(view.GetType() == Link::PacketType::COMMAND);
    return CommandView(view.GetPayload());
  }

  uint16_t GetOpcode() {
    return begin().extract<uint16_t>();
  }

  Iterator<true> GetData() {
    return begin() + sizeof(uint16_t);
  }

 private:
  CommandView() = delete;
  CommandView(const PacketView<true>& view) : PacketView(view) {}
};

}  // namespace packets
}  // namespace test_vendor_lib