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Jens Axboee1f36502006-10-27 10:54:08 +02001#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,
Jens Axboe75e6f362006-11-03 08:17:09 +010010 FIO_OPT_STR_VAL_INT,
Jens Axboee1f36502006-10-27 10:54:08 +020011 FIO_OPT_STR_VAL_TIME,
12 FIO_OPT_STR_STORE,
13 FIO_OPT_RANGE,
14 FIO_OPT_INT,
Jens Axboe13335dd2007-01-10 13:14:02 +010015 FIO_OPT_BOOL,
Jens Axboee1f36502006-10-27 10:54:08 +020016 FIO_OPT_STR_SET,
17};
18
19/*
Jens Axboeb1ec1da2007-02-23 10:29:16 +010020 * Match a possible value string with the integer option.
21 */
22struct value_pair {
23 const char *ival; /* string option */
24 unsigned int oval; /* output value */
Jens Axboe78372132007-03-14 13:24:07 +010025 const char *help; /* help text for sub option */
Jens Axboeb1ec1da2007-02-23 10:29:16 +010026};
27
28#define PARSE_MAX_VP 16
29
30/*
Jens Axboee1f36502006-10-27 10:54:08 +020031 * Option define
32 */
33struct fio_option {
Jens Axboeee738492007-01-10 11:23:16 +010034 const char *name; /* option name */
Jens Axboe03b74b32007-01-11 11:04:31 +010035 const char *alias; /* possible old allowed name */
Jens Axboeee738492007-01-10 11:23:16 +010036 enum fio_opt_type type; /* option type */
37 unsigned int off1; /* potential parameters */
Jens Axboee1f36502006-10-27 10:54:08 +020038 unsigned int off2;
Jens Axboef90eff52006-11-06 11:08:21 +010039 unsigned int off3;
40 unsigned int off4;
Jens Axboeee738492007-01-10 11:23:16 +010041 unsigned int maxval; /* max and min value */
Jens Axboe63f29372007-01-10 13:20:09 +010042 int minval;
Jens Axboe76a43db2007-01-11 13:24:44 +010043 int neg; /* negate value stored */
Jens Axboeee738492007-01-10 11:23:16 +010044 void *cb; /* callback */
45 const char *help; /* help text for option */
46 const char *def; /* default setting */
Jens Axboeb1ec1da2007-02-23 10:29:16 +010047 const struct value_pair posval[PARSE_MAX_VP];/* possible values */
Jens Axboeafdf9352007-07-31 16:14:34 +020048 const char *parent; /* parent option */
Jens Axboee1f36502006-10-27 10:54:08 +020049};
50
51typedef int (str_cb_fn)(void *, char *);
52
53extern int parse_option(const char *, struct fio_option *, void *);
Jens Axboeb4692822006-10-27 13:43:22 +020054extern int parse_cmd_option(const char *t, const char *l, struct fio_option *, void *);
Jens Axboefd28ca42007-01-09 21:20:13 +010055extern int show_cmd_help(struct fio_option *, const char *);
Jens Axboeee738492007-01-10 11:23:16 +010056extern void fill_default_options(void *, struct fio_option *);
Jens Axboe13335dd2007-01-10 13:14:02 +010057extern void options_init(struct fio_option *);
Jens Axboee1f36502006-10-27 10:54:08 +020058
59extern void strip_blank_front(char **);
60extern void strip_blank_end(char *);
Jens Axboe564ca972007-12-14 12:21:19 +010061extern int str_to_decimal(const char *, long long *, int);
Jens Axboee1f36502006-10-27 10:54:08 +020062
63/*
64 * Handlers for the options
65 */
Jens Axboeb4692822006-10-27 13:43:22 +020066typedef int (fio_opt_str_fn)(void *, const char *);
Jens Axboe63f29372007-01-10 13:20:09 +010067typedef int (fio_opt_str_val_fn)(void *, long long *);
68typedef int (fio_opt_int_fn)(void *, int *);
Jens Axboee1f36502006-10-27 10:54:08 +020069typedef int (fio_opt_str_set_fn)(void *);
70
71#define td_var(start, offset) ((void *) start + (offset))
72
Jens Axboe0e9f7fa2007-03-01 14:05:30 +010073#ifndef min
74#define min(a, b) ((a) < (b) ? (a) : (b))
75#endif
76#ifndef max
77#define max(a, b) ((a) > (b) ? (a) : (b))
78#endif
79
Jens Axboee1f36502006-10-27 10:54:08 +020080#endif