slige/runtime/rpc_server.hpp

#pragma once

#include <arpa/inet.h>
#include <cstdint>
#include <netdb.h>
#include <stdlib.h>
#include <string>
#include <unistd.h>
#include <variant>

namespace slige_rpc {

class RpcServer {
public:
private:
};

struct Ewwow {
    std::string message;
};

namespace {
    class ClientSocket {
    public:
        ~ClientSocket() { close(fd); };
        ClientSocket(int fd)
            : fd(fd)
        {
        }
        auto Read(
            uint8_t* buffer, size_t length) -> std::variant<size_t, Ewwow>;
        auto Write(
            uint8_t* buffer, size_t length) -> std::variant<size_t, Ewwow>;

    private:
        int fd;
    };

    class ServerSocket {
    public:
        ServerSocket(int fd, sockaddr_in address)
            : fd(fd)
            , address(address)
        {
        }
        ~ServerSocket() { close(fd); };
        auto Accept() -> std::variant<ClientSocket, Ewwow>;

    private:
        int fd;
        sockaddr_in address;
    };
}

class Socket {
public:
    Socket(uint16_t port)
    {
        address = {
            .sin_family = AF_INET,
            .sin_port = htons(port),
            .sin_addr = { .s_addr = inet_addr("127.0.0.1") },
            .sin_zero = { 0 },
        };
    }

    auto Connect() -> std::variant<ClientSocket, Ewwow>;
    auto Bind() -> std::variant<ServerSocket, Ewwow>;

private:
    sockaddr_in address;
};

};