utc_binreltime(3dts)

Synopsis

#include <dce/utc.h>

int utc_binreltime(
reltimespec_t *timesp,
timespec_t *inaccsp,
utc_t *utc);

Parameters

Input

utc
Relative binary timestamp. Use NULL if you want this routine to use the current time for this parameter.

Output

timesp
Time component of the relative binary timestamp, in the form of seconds and nanoseconds since the base time (1970-01-01:00:00:00.0+00:00I0).

inaccsp
Inaccuracy component of the relative binary timestamp, in the form of seconds and nanoseconds.

Description
The utc_binreltime( ) routine converts a relative binary timestamp to two timespec structures that express relative time and inaccuracy. These timespec structures describe a time interval.

Return Values
~0 Indicates that the routine executed successfully.

1 Indicates an invalid time argument or invalid results.

Examples
The following example measures the duration of a process, then prints the resulting relative time and inaccuracy.

utc_t before, duration;
reltimespec_t tduration;
timespec_t iduration;
/* Get the time before the start of the operation...
*/
utc_gettime(&before); /* Out: Before binary timestamp */
/* ...Later...
* Subtract, getting the duration as a relative time.
*
* NOTE: The NULL argument is used to obtain the current time.
*/
utc_subtime(&duration, /* Out: Duration rel bin timestamp */
(utc_t *)0, /* In: After binary timestamp */
&before); /* In: Before binary timestamp */
/* Convert the relative times to timespec structures...
*/
utc_binreltime(&tduration, /* Out: Duration time timespec */
&iduration, /* Out: Duration inacc timespec */
&duration); /* In: Duration rel bin timestamp */
/* Print the duration...
*/
printf(%d.%04d, tduration.tv_sec, (tduration.tv_nsec/10000));
if ((long)iduration.tv_sec == -1)
printf(Iinf\n);
else
printf(I%d.%04d\n, iduration.tv_sec, (iduration.tv_nsec/100000));

Related Information
Function: utc_mkbinreltime(3dts)