extern void fio_server_send_du(void);
extern void fio_server_send_job_options(struct flist_head *, unsigned int);
extern int fio_server_get_verify_state(const char *, int, void **);
+extern bool fio_server_poll_fd(int fd, short events, int timeout);
extern struct fio_net_cmd *fio_net_recv_cmd(int sk, bool wait);