parse.h revision 7bb591020669b7266c57108f2a68b48a03ae72ee 
1#ifndef FIO_PARSE_H
2#define FIO_PARSE_H
3
4#include "flist.h"
5
6/*
7 * Option types
8 */
9enum fio_opt_type {
10	FIO_OPT_INVALID = 0,
11	FIO_OPT_STR,
12	FIO_OPT_STR_MULTI,
13	FIO_OPT_STR_VAL,
14	FIO_OPT_STR_VAL_TIME,
15	FIO_OPT_STR_STORE,
16	FIO_OPT_RANGE,
17	FIO_OPT_INT,
18	FIO_OPT_BOOL,
19	FIO_OPT_STR_SET,
20	FIO_OPT_DEPRECATED,
21};
22
23/*
24 * Match a possible value string with the integer option.
25 */
26struct value_pair {
27	const char *ival;		/* string option */
28	unsigned int oval;		/* output value */
29	const char *help;		/* help text for sub option */
30	int or;				/* OR value */
31};
32
33#define OPT_LEN_MAX 	4096
34#define PARSE_MAX_VP	16
35
36/*
37 * Option define
38 */
39struct fio_option {
40	const char *name;		/* option name */
41	const char *alias;		/* possible old allowed name */
42	enum fio_opt_type type;		/* option type */
43	unsigned int off1;		/* potential parameters */
44	unsigned int off2;
45	unsigned int off3;
46	unsigned int off4;
47	void *roff1, *roff2, *roff3, *roff4;
48	unsigned int maxval;		/* max and min value */
49	int minval;
50	int neg;			/* negate value stored */
51	int prio;
52	void *cb;			/* callback */
53	const char *help;		/* help text for option */
54	const char *def;		/* default setting */
55	struct value_pair posval[PARSE_MAX_VP];/* possible values */
56	const char *parent;		/* parent option */
57	int (*verify)(struct fio_option *, void *);
58	const char *prof_name;		/* only valid for specific profile */
59};
60
61typedef int (str_cb_fn)(void *, char *);
62
63extern int parse_option(const char *, struct fio_option *, void *);
64extern void sort_options(char **, struct fio_option *, int);
65extern int parse_cmd_option(const char *t, const char *l, struct fio_option *, void *);
66extern int show_cmd_help(struct fio_option *, const char *);
67extern void fill_default_options(void *, struct fio_option *);
68extern void option_init(struct fio_option *);
69extern void options_init(struct fio_option *);
70
71extern void strip_blank_front(char **);
72extern void strip_blank_end(char *);
73extern int str_to_decimal(const char *, long long *, int, void *);
74
75/*
76 * Handlers for the options
77 */
78typedef int (fio_opt_str_fn)(void *, const char *);
79typedef int (fio_opt_str_val_fn)(void *, long long *);
80typedef int (fio_opt_int_fn)(void *, int *);
81typedef int (fio_opt_str_set_fn)(void *);
82
83#define td_var(start, offset)	((void *) start + (offset))
84
85#ifndef min
86#define min(a, b)	((a) < (b) ? (a) : (b))
87#endif
88#ifndef max
89#define max(a, b)	((a) > (b) ? (a) : (b))
90#endif
91
92static inline int parse_is_percent(unsigned long long val)
93{
94	return val <= -1ULL && val >= (-1ULL - 100ULL);
95}
96
97#endif
98