#include <stdio.h>

#include "src2/shmh.h"
#include <sys/types.h>
#include <sys/stat.h>

#include <thread>
#include <unistd.h>
using namespace std;

static int handle_memfd(void* args, struct fd_msg* msg){
    int fd = msg->fd;
    if (fd > 0){
        // struct stat st;
        // if (fstat (fd, &st))
        // {
        //     return -1;
        // }
        // printf("st size %ld\n", st.st_size);

        unsigned char* addr;
        int len = basic_shm_mmap(fd, &addr);
        if (len <= 0) {
            printf("======>> basic_shm_mmap failed\n");
            return -1;
        }
        printf("======>> mmap len %d msg %s\n", len, addr);
        basic_shm_unmmap(fd, &addr);
        basic_shm_close(fd);
        return fd;
    }
    return 0;
}

int main(int argc, char const *argv[])
{
    int sock = unix_domain_server_fd("/tmp/memfd_shm.sock", 1);
    if (sock < 0){
        printf("unix_domain_server_fd failed\n");
        return 0;
    }

    thread t([&sock]{
        epoll_loop(sock, NULL, handle_memfd, NULL, NULL);
        // poll_loop(sock, NULL, handle_memfd, NULL, NULL);
        // select_loop(sock, NULL, handle_memfd, NULL, NULL);
    });

    t.join();
    close(sock);

    return 0;
}