serenity/LibCore/CNotifier.h

#pragma once

#include <AK/Function.h>

class CNotifier {
public:
    enum Event {
        None        = 0,
        Read        = 1,
        Write       = 2,
        Exceptional = 4,
    };
    CNotifier(int fd, unsigned event_mask);
    ~CNotifier();

    Function<void()> on_ready_to_read;
    Function<void()> on_ready_to_write;

    int fd() const { return m_fd; }
    unsigned event_mask() const { return m_event_mask; }
    void set_event_mask(unsigned event_mask) { m_event_mask = event_mask; }

private:
    int m_fd { -1 };
    unsigned m_event_mask { 0 };
};