+extern char client_sockaddr_str[]; /* used with --client option */
+
+extern struct fio_option fio_options[FIO_MAX_OPTS];
+
+extern bool __fio_option_is_set(struct thread_options *, unsigned int off);
+
+#define fio_option_is_set(__td, name) \
+({ \
+ const unsigned int off = td_var_offset(name); \
+ bool __r = __fio_option_is_set((__td), off); \
+ __r; \
+})
+
+extern void fio_option_mark_set(struct thread_options *, struct fio_option *);
+
+static inline bool o_match(struct fio_option *o, const char *opt)