Add option priorities
[fio.git] / parse.h
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1#ifndef FIO_PARSE_H
2#define FIO_PARSE_H
3
4/*
5 * Option types
6 */
7enum fio_opt_type {
8 FIO_OPT_STR = 0,
9 FIO_OPT_STR_VAL,
75e6f36f 10 FIO_OPT_STR_VAL_INT,
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11 FIO_OPT_STR_VAL_TIME,
12 FIO_OPT_STR_STORE,
13 FIO_OPT_RANGE,
14 FIO_OPT_INT,
13335ddb 15 FIO_OPT_BOOL,
e1f36503 16 FIO_OPT_STR_SET,
15ca150e 17 FIO_OPT_DEPRECATED,
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18};
19
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20/*
21 * Match a possible value string with the integer option.
22 */
23struct value_pair {
24 const char *ival; /* string option */
25 unsigned int oval; /* output value */
7837213b 26 const char *help; /* help text for sub option */
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27};
28
29#define PARSE_MAX_VP 16
30
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31/*
32 * Option define
33 */
34struct fio_option {
ee738499 35 const char *name; /* option name */
03b74b3e 36 const char *alias; /* possible old allowed name */
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37 enum fio_opt_type type; /* option type */
38 unsigned int off1; /* potential parameters */
e1f36503 39 unsigned int off2;
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40 unsigned int off3;
41 unsigned int off4;
ee738499 42 unsigned int maxval; /* max and min value */
63f29372 43 int minval;
76a43db4 44 int neg; /* negate value stored */
3b8b7135 45 int prio;
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46 void *cb; /* callback */
47 const char *help; /* help text for option */
48 const char *def; /* default setting */
b1ec1da6 49 const struct value_pair posval[PARSE_MAX_VP];/* possible values */
afdf9352 50 const char *parent; /* parent option */
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51};
52
53typedef int (str_cb_fn)(void *, char *);
54
55extern int parse_option(const char *, struct fio_option *, void *);
3b8b7135 56extern void sort_options(char **, struct fio_option *, int);
b4692828 57extern int parse_cmd_option(const char *t, const char *l, struct fio_option *, void *);
fd28ca49 58extern int show_cmd_help(struct fio_option *, const char *);
ee738499 59extern void fill_default_options(void *, struct fio_option *);
13335ddb 60extern void options_init(struct fio_option *);
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61
62extern void strip_blank_front(char **);
63extern void strip_blank_end(char *);
564ca972 64extern int str_to_decimal(const char *, long long *, int);
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65
66/*
67 * Handlers for the options
68 */
b4692828 69typedef int (fio_opt_str_fn)(void *, const char *);
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70typedef int (fio_opt_str_val_fn)(void *, long long *);
71typedef int (fio_opt_int_fn)(void *, int *);
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72typedef int (fio_opt_str_set_fn)(void *);
73
74#define td_var(start, offset) ((void *) start + (offset))
75
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76#ifndef min
77#define min(a, b) ((a) < (b) ? (a) : (b))
78#endif
79#ifndef max
80#define max(a, b) ((a) > (b) ? (a) : (b))
81#endif
82
e1f36503 83#endif