25 * Match a possible value string with the integer option.
28 const char *ival; /* string option */
29 unsigned int oval; /* output value */
30 const char *help; /* help text for sub option */
31 int or; /* OR value */
32 void *cb; /* sub-option callback */
35 #define OPT_LEN_MAX 4096
36 #define PARSE_MAX_VP 24
42 const char *name; /* option name */
43 const char *lname; /* long option name */
44 const char *alias; /* possible old allowed name */
45 enum fio_opt_type type; /* option type */
46 unsigned int off1; /* potential parameters */
52 void *roff1, *roff2, *roff3, *roff4, *roff5, *roff6;
53 unsigned int maxval; /* max and min value */
55 double maxfp; /* max and min floating value */
57 unsigned int interval; /* client hint for suitable interval */
58 unsigned int maxlen; /* max length */
59 int neg; /* negate value stored */
61 void *cb; /* callback */
62 const char *help; /* help text for option */
63 const char *def; /* default setting */
64 struct value_pair posval[PARSE_MAX_VP];/* possible values */
65 const char *parent; /* parent option */
66 int hide; /* hide if parent isn't set */
67 int hide_on_set; /* hide on set, not on unset */
68 const char *inverse; /* if set, apply opposite action to this option */
69 struct fio_option *inv_opt; /* cached lookup */
70 int (*verify)(struct fio_option *, void *);
71 const char *prof_name; /* only valid for specific profile */
72 unsigned int category; /* what type of option */
73 unsigned int group; /* who to group with */
77 typedef int (str_cb_fn)(void *, char *);
79 extern int parse_option(char *, const char *, struct fio_option *, struct fio_option **, void *);
80 extern void sort_options(char **, struct fio_option *, int);
81 extern int parse_cmd_option(const char *t, const char *l, struct fio_option *, void *);
82 extern int show_cmd_help(struct fio_option *, const char *);
83 extern void fill_default_options(void *, struct fio_option *);
84 extern void option_init(struct fio_option *);
85 extern void options_init(struct fio_option *);
86 extern void options_free(struct fio_option *, void *);
88 extern void strip_blank_front(char **);
89 extern void strip_blank_end(char *);
90 extern int str_to_decimal(const char *, long long *, int, void *);
91 extern int check_str_bytes(const char *p, long long *val, void *data);
92 extern int str_to_float(const char *str, double *val);
95 * Handlers for the options
97 typedef int (fio_opt_str_fn)(void *, const char *);
98 typedef int (fio_opt_str_val_fn)(void *, long long *);
99 typedef int (fio_opt_int_fn)(void *, int *);
100 typedef int (fio_opt_str_set_fn)(void *);
102 #define td_var(start, offset) ((void *) start + (offset))
104 static inline int parse_is_percent(unsigned long long val)
106 return val <= -1ULL && val >= (-1ULL - 100ULL);