packet.hpp

// Copyright Takatoshi Kondo 2022
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
 
#if !defined(ASYNC_MQTT_PACKET_HPP)
#define ASYNC_MQTT_PACKET_HPP
 
#include <async_mqtt/buffer.hpp>
#include <async_mqtt/util/static_vector.hpp>
#include <async_mqtt/packet/fixed_header.hpp>
 
namespace async_mqtt {
 
namespace detail {
 
class header_only_packet {
public:
    header_only_packet(control_packet_type type, std::uint8_t flags)
        : packet_ { static_cast<char>(make_fixed_header(type, flags)), 0 }
    {}
 
    std::vector<as::const_buffer> const_buffer_sequence() const {
        return { as::buffer(packet_.data(), packet_.size()) };
    }
 
    std::size_t size() const {
        return packet_.size();
    }
 
    static constexpr std::size_t num_of_const_buffer_sequence() {
        return 1;
    }
 
    std::string continuous_buffer() const {
        return std::string(packet_.data(), size());
    }
private:
    static_vector<char, 2> packet_;
};
 
} // namespace detail
 
} // namespace async_mqtt
 
#endif // ASYNC_MQTT_PACKET_HPP