lighttpd为什么要accept多次呢

时间：2014-09-29 12:53:40 阅读：160 评论：0 收藏：0 [点我收藏+]

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在lighttpd网络模型里面我们可以看到以下代码

 1 /* accept()s at most 100 connections directly
 2      *
 3      * we jump out after 100 to give the waiting connections a chance */
 4     for (loops = 0; loops < 100 && NULL != (con = connection_accept(srv, srv_socket)); loops++) {
 5         handler_t r;
 6 
 7         connection_state_machine(srv, con);
 8 
 9         switch(r = plugins_call_handle_joblist(srv, con)) {
10         case HANDLER_FINISHED:
11         case HANDLER_GO_ON:
12             break;
13         default:
14             log_error_write(srv, __FILE__, __LINE__, "d", r);
15             break;
16         }
17     }
18     return HANDLER_GO_ON;

顾名思义，当有连接来的时候，从select多路复用，但是我们处理连接的时候，我们不知道事件的来源和次数，所以要循环好、判断，我的猜测是这样的

下面来证明这段代码是来自unix网络编程的sleect模型的服务端

 1  for ( ; ; ) {
 2                 rset = allset;          /* structure assignment */
 3                 nready = Select(maxfd+1, &rset, NULL, NULL, NULL);
 4 
 5                 if (FD_ISSET(listenfd, &rset)) {        /* new client connection */
 6                         clilen = sizeof(cliaddr);
 7                         connfd = Accept(listenfd, (SA *) &cliaddr, &clilen);
 8 
 9 
10                         printf("new client:1, fd %d\n",connfd);
11                          sleep(10);
12                         connfd1 = Accept(listenfd, (SA *) &cliaddr, &clilen);
13                           printf("new client:2, fd %d\n",connfd1);
14 
15                      sleep(10);         
16                       return 0;