unitparse.c File Reference

Functions for parsing values with units from a configuration file. More...

#include "orconfig.h"
#include "lib/confmgt/unitparse.h"
#include "lib/log/log.h"
#include "lib/log/util_bug.h"
#include "lib/malloc/malloc.h"
#include "lib/string/parse_int.h"
#include "lib/string/printf.h"
#include "lib/string/util_string.h"
#include "lib/intmath/muldiv.h"
#include <string.h>

Go to the source code of this file.

Functions
uint64_t	config_parse_units (const char *val, const unit_table_t *u, int *ok, char **errmsg_out)
uint64_t	config_parse_memunit (const char *s, int *ok)
int	config_parse_msec_interval (const char *s, int *ok)
int	config_parse_interval (const char *s, int *ok)

Variables
const struct unit_table_t	memory_units []
const struct unit_table_t	time_units []
const struct unit_table_t	time_msec_units []

Detailed Description

Functions for parsing values with units from a configuration file.

Definition in file unitparse.c.

Function Documentation

config_parse_interval()

int config_parse_interval	(	const char *	s,
		int *	ok
	)

Parse a string in the format "number unit", where unit is a unit of time. On success, set *ok to true and return the number of seconds in the provided interval. Otherwise, set *ok to 0 and return -1.

Definition at line 250 of file unitparse.c.

config_parse_memunit()

uint64_t config_parse_memunit	(	const char *	s,
		int *	ok
	)

Parse a string in the format "number unit", where unit is a unit of information (byte, KB, M, etc). On success, set *ok to true and return the number of bytes specified. Otherwise, set *ok to false and return 0.

Definition at line 222 of file unitparse.c.

config_parse_msec_interval()

int config_parse_msec_interval	(	const char *	s,
		int *	ok
	)

Parse a string in the format "number unit", where unit is a unit of time in milliseconds. On success, set *ok to true and return the number of milliseconds in the provided interval. Otherwise, set *ok to 0 and return -1.

Definition at line 233 of file unitparse.c.

config_parse_units()

uint64_t config_parse_units	(	const char *	val,
		const unit_table_t *	u,
		int *	ok,
		char **	errmsg_out
	)

Parse a string val containing a number, zero or more spaces, and an optional unit string. If the unit appears in the table u, then multiply the number by the unit multiplier. On success, set *ok to 1 and return this product. Otherwise, set *ok to 0.

If an error (like overflow or a negative value is detected), put an error message in *errmsg_out if that pointer is non-NULL, and otherwise log a warning.

Definition at line 127 of file unitparse.c.

Referenced by config_parse_interval(), config_parse_memunit(), and config_parse_msec_interval().

Variable Documentation

memory_units

const struct unit_table_t memory_units[]

Table to map the names of memory units to the number of bytes they contain.

Definition at line 27 of file unitparse.c.

Referenced by config_parse_memunit().

time_msec_units

const struct unit_table_t time_msec_units[]

Initial value:

= {
  { "",         1 },
  { "msec",     1 },
  { "millisecond", 1 },
  { "milliseconds", 1 },
  { "second",   1000 },
  { "seconds",  1000 },
  { "minute",   60*1000 },
  { "minutes",  60*1000 },
  { "hour",     60*60*1000 },
  { "hours",    60*60*1000 },
  { "day",      24*60*60*1000 },
  { "days",     24*60*60*1000 },
  { "week",     7*24*60*60*1000 },
  { "weeks",    7*24*60*60*1000 },
  { NULL, 0 },
}

Table to map the names of time units to the number of milliseconds they contain.

Definition at line 97 of file unitparse.c.

Referenced by config_parse_msec_interval().

time_units

const struct unit_table_t time_units[]

Initial value:

= {
  { "",         1 },
  { "second",   1 },
  { "seconds",  1 },
  { "minute",   60 },
  { "minutes",  60 },
  { "hour",     60*60 },
  { "hours",    60*60 },
  { "day",      24*60*60 },
  { "days",     24*60*60 },
  { "week",     7*24*60*60 },
  { "weeks",    7*24*60*60 },
  { "month",    2629728, }, 
  { "months",   2629728, },
  { NULL, 0 },
}

Table to map the names of time units to the number of seconds they contain.

Definition at line 76 of file unitparse.c.

Referenced by config_parse_interval().