chatroom_lt/server_init.c at master · liutingjieni/chatroom_lt · GitHub

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/*************************************************************************
	> File Name: server_main.c
	> Author:
	> Mail:
	> Created Time: 2019年08月07日 星期三 09时21分20秒
 ************************************************************************/
#include "server_deal.h"
#include "MYSQL.h"

#include <pthread.h>
#include <fcntl.h>
#include <sys/epoll.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <signal.h>
#include <math.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#define SERV_PORT       8888
#define IP              "0.0.0.0"
#define EPOLL_MAX       10000
#define LISTENMAX       1000


void my_err(const char * err_string,int line)
{
	fprintf(stderr, "line:%d  ", line);
	perror(err_string);
	exit(1);
}

int init()
{
    int sock_fd,epoll_fd,fd_num,conn_fd;
    struct sockaddr_in serv_addr;
    struct sockaddr_in cli_addr;
    struct epoll_event ev, events[LISTENMAX];
    int cli_len = sizeof(struct sockaddr_in);

    MYSQL_main_init();

    sock_fd = socket(AF_INET, SOCK_STREAM, 0);
    if (sock_fd < 0)
    {
        perror("创建socket失败");
        exit(-1);
    }

    int optval = 1;
    if (setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR, (void *)&optval, sizeof(int))<0)
    {
        perror("套接字重新绑定失败");

    }

    memset(&serv_addr, 0,sizeof(struct sockaddr_in));
    serv_addr.sin_family =  AF_INET;
    serv_addr.sin_port = htons(SERV_PORT);
    serv_addr.sin_addr.s_addr = inet_addr(IP);

    if (bind(sock_fd, (struct sockaddr *)&serv_addr, sizeof(struct sockaddr_in))<0)
    {
        perror("绑定失败");
        exit(-1);
    }

    epoll_fd = epoll_create(EPOLL_MAX);//生成epoll句柄
    ev.data.fd = sock_fd;//设置与要处理事件相关的文件描述符
    ev.events = EPOLLIN;//设置要处理的事件类型
    epoll_ctl(epoll_fd, EPOLL_CTL_ADD, sock_fd, &ev);//注册epoll事件


    if (listen(sock_fd, 10) < 0)
    {
        perror("设置监听失败");
        exit(-1);
    }
    printf("listen success\n");
    while(1)
    {
        fd_num = epoll_wait(epoll_fd, events, EPOLL_MAX, 1000);
        for (int i = 0; i < fd_num; i++)
        {
            if (events[i].data.fd == sock_fd)
            {
                conn_fd = accept(sock_fd, (struct sockaddr *)&cli_addr, &cli_len);
                if (conn_fd < 0)
                {
                    perror("连接失败");
                }
                ev.data.fd = conn_fd;
                ev.events = EPOLLIN;
                epoll_ctl(epoll_fd, EPOLL_CTL_ADD, conn_fd, &ev);

            }
            else if (events[i].events & EPOLLIN)
            {
               recv_PACK(events[i].data.fd);
               // n = recv(events[i].data.fd, &recv_t, sizeof(PACK), 0);
               // recv_t.data.send_fd = events[i].data.fd;
            }
        }
    }


}