/*通过poll函数循环监视套结字*/
int poll_server (int *sock_fd)
{
int server_recv_return = 0 ;
int n ;
int poll_num = 0 ; /*记录poll函数返回 发生事件的套结字的个数*/
int count = 0 ; /*需要监视的套结字个数*/
struct pollfd poll_fd[POLLMAX] ; /*监视列表数组*/
struct pollfd *poll_fd_temp ;
memset (&poll_fd[0], 0, POLLMAX*sizeof (struct pollfd)) ; /*监视列表数组全部清0*/
/*将侦听套结字存入poll_fd[0]元素中,监听事件为有普通可读数据就绪*/
poll_fd[0].fd = *sock_fd ;
poll_fd[0].events = POLLRDNORM ;
count = 1 ;
/*循环监视事件*/
while((poll_num = poll (&poll_fd[0], count, -1)) >= 0) {printf ("start deal\n") ;
if(poll_fd[0].revents == POLLRDNORM) { /*侦听套结字上有可读数据时，说明有客户端请求连接*/
/*从监视列表中寻找第一个未使用的元素*/
if((poll_fd_temp = poll_get (&poll_fd[0])) == NULL) {
printf ("too many client\n") ;
break ;
}
if(server_accept (&poll_fd[0].fd, poll_fd_temp) < 0) {
break ;
}
count++ ;
}
/*将整个监视列表查看一遍，对发生事件的套结字进行处理*/
for(n = 1; n < POLLMAX; n++) {
if(poll_fd[n].revents == POLLRDNORM) {
/*接收命令包*/
if((server_recv_return = server_recv (&poll_fd[n])) < 0) {
continue ;
}
/*如果该套结字断开连接，将poll_fd数组中该元素清空*/
else if(server_recv_return == 1) {
memset (&poll_fd[n], 0, sizeof (struct pollfd)) ;
printf ("a client gone\n") ;
}
else {
poll_fd[n].revents = 0 ; /*重新将发生的事件置为0，以便下一次监视*/
}
poll_num-- ;
}
if(poll_num <= 0) { /*发生事件的套结字处理完，直接退出循环*/
break ;
}
}
printf ("deal end\n") ;
}
return 0 ;
}
lagopus_qmuxer_poll_t
ofp_bridgeq_mgr_dataq_poll_get(struct ofp_bridgeq *bridgeq) {
return poll_get(bridgeq, DATAQ_POLL);
}
lagopus_qmuxer_poll_t
ofp_bridgeq_mgr_event_dataq_dp_poll_get(struct ofp_bridgeq *bridgeq) {
return poll_get(bridgeq, EVENT_DATAQ_DP_POLL);
}
lagopus_qmuxer_poll_t
ofp_bridgeq_mgr_eventq_poll_get(struct ofp_bridgeq *bridgeq) {
return poll_get(bridgeq, EVENTQ_POLL);
}
