小白求教socket,该怎么解决

小白求教socket
server                                                                                                                             client        
          socket();                                                                                                                         socket();
          bind();                                                                                                                             connect();
         listen();                                                                                                                             while(1)
         while(1)                                                                                                                                           {   read() } 

        {
                    tv_sock.tv_sec = 3;
                tv_sock.tv_usec = 0;
                FD_ZERO(&writefds);
                FD_SET(sockfd,&writefds);
                          ret_socket = select(max+1,NULL,&writefds,NULL,&tv_sock);
                          if(ret_socket == 0) 
                                   printf("!!!!!!!!!!!!!!!!time out\n");
                           if(FD_ISSET(sockfd,&writefdfds)){
                                    accept();
                                    write();
                           }
              }

为什么总是 timeout    服务器啊端不能只写  客户端只接收吗？
[解决办法]

/**
*你要先readfds，读到连上来的socket，建立连接
*然后用这个socket去写！
*/