nl_neighbor_get_task.hxx

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#pragma once
 
#include <stdint.h>
#include <array>
#include <expected>
#include <optional>
#include <span>
#include <system_error>
 
#include "rtaco/events/nl_neighbor_event.hxx"
#include "rtaco/tasks/nl_neighbor_task.hxx"
 
struct nlmsghdr;
 
namespace llmx {
namespace rtaco {
 
class SocketGuard;

class NeighborGetTask : public NeighborTask<NeighborGetTask, NeighborEvent> {
    std::array<uint8_t, 16> address_;
 
public:
    NeighborGetTask(SocketGuard& socket_guard, uint16_t uint16_t, uint32_t sequence,
            std::span<uint8_t, 16> address);

    void prepare_request();

    auto process_message(const nlmsghdr& header)
            -> std::optional<std::expected<NeighborEvent, std::error_code>>;
 
private:
    auto handle_done() -> std::expected<NeighborEvent, std::error_code>;
    auto handle_error(const nlmsghdr& header)
            -> std::expected<NeighborEvent, std::error_code>;
    auto handle_neighbor(const nlmsghdr& header)
            -> std::optional<std::expected<NeighborEvent, std::error_code>>;
};
 
} // namespace rtaco
} // namespace llmx