23 int sockfd;  variable
75         } else if (clientfd == sockfd || clientfd == sockfd6) {  in loop()
77         } else if (clientfd == sockfd) {  in loop()
116     sockfd = ff_socket(AF_INET, SOCK_STREAM, 0);  in main()
117     if (sockfd < 0) {  in main()
118         printf("ff_socket failed, sockfd:%d, errno:%d, %s\n", sockfd, errno, strerror(errno));  in main()
128     int ret = ff_bind(sockfd, (struct linux_sockaddr *)&my_addr, sizeof(my_addr));  in main()
130         printf("ff_bind failed, sockfd:%d, errno:%d, %s\n", sockfd, errno, strerror(errno));  in main()
134      ret = ff_listen(sockfd, MAX_EVENTS);  in main()
136         printf("ff_listen failed, sockfd:%d, errno:%d, %s\n", sockfd, errno, strerror(errno));  in main()
140     EV_SET(&kevSet, sockfd, EVFILT_READ, EV_ADD, 0, MAX_EVENTS, NULL);  in main()