#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
//服務器后臺TCP連接存活問題
int?g_epfd;

int?InitServer（?unsigned?short?port?）
{
????int?nServerFd?=?socket（?AF_INET?SOCK_STREAM?0?）;

????struct?sockaddr_in?addr;
????memset（?&addr?0?sizeof（addr）?）;

????addr.sin_family?=?AF_INET;
????addr.sin_port?=?htons（?port?）;
????addr.sin_addr.s_addr?=?0;

????if?（?bind（?nServerFd?（struct?sockaddr?*）&addr?sizeof（addr）?）?<0?）
????{
????????printf（“bind?error\n“）;
????????exit（-1）;
????}

????if?（?listen（?nServerFd?128?）?????{
????????printf（“listen?error\n“）;
????????exit（-1）;
????}

????return?nServerFd;
}

int?AddFd（?int?epfd?int?nFd??int?nOneShot）
{
????struct?epoll_event?event;
????memset（?&event?0?sizeof（?event）?）;

????event.data.fd?=?nFd;
????event.events?|=?EPOLLIN?|?EPOLLRDHUP?|?EPOLLET;

????if?（