EuvDns.hpp

//
// Created by xiong on 2021/6/29.
//
 
#ifndef EMX_EuvDns_HPP
#define EMX_EuvDns_HPP
 
#include "uv.h"
#include <functional>
#include "core/EmxTypeDef.hpp"
 
namespace Emx {
    class EuvDns {
    public:
        EuvDns() :
                m_loop(nullptr),
                m_resolver(nullptr),
                m_isRunning(false),
                m_cb(nullptr) {}
 
        enum class TypeE : uint8_t {
            Ipv4,
            Ipv6,
            UnSpec
        };
        using OnResolved = std::function<void(Emx::ErrCodeE e, addrinfo *addr, void *arg)>;
 
        ErrCodeE Create(EuvLoop *loop);
 
        void Destroy();
 
        ErrCodeE Run(const char *server, OnResolved cb,
                     void *arg = nullptr, TypeE type = TypeE::UnSpec);
 
    private:
        static void OnDestroy(uv_getaddrinfo_t *resolver, int status, struct addrinfo *res);
 
    private:
        EuvLoop *m_loop;
        struct Data {
            void *obj;
            void *arg;
        } m_data;
        uv_getaddrinfo_t *m_resolver;
        bool m_isRunning;
        OnResolved m_cb;
        char m_server[EMX_MAX_PATH_SIZE];
    };
}
 
#endif //EMX_EuvDns_HPP