connection_id.h

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// BSD 3-Clause License
// Copyright (c) 2024, 🍀☀🌕🌥 🌊
// See the LICENSE file in the project root for full license information.
 
#pragma once
 
#include <array>
#include <cstdint>
#include <span>
#include <string>
 
namespace kcenon::network::protocols::quic
{
 
class connection_id
{
public:
    static constexpr size_t max_length = 20;
 
    connection_id() = default;
 
    explicit connection_id(std::span<const uint8_t> data);
 
    [[nodiscard]] static auto generate(size_t length = 8) -> connection_id;
 
    [[nodiscard]] auto data() const -> std::span<const uint8_t>;
 
    [[nodiscard]] auto length() const noexcept -> size_t;
 
    [[nodiscard]] auto empty() const noexcept -> bool;
 
    [[nodiscard]] auto operator==(const connection_id& other) const noexcept -> bool;
 
    [[nodiscard]] auto operator!=(const connection_id& other) const noexcept -> bool;
 
    [[nodiscard]] auto operator<(const connection_id& other) const noexcept -> bool;
 
    [[nodiscard]] auto to_string() const -> std::string;
 
private:
    std::array<uint8_t, max_length> data_{};
    uint8_t length_{0};
};
 
} // namespace kcenon::network::protocols::quic