HELPLIB.HLB  —  DECdts  utc_binreltime
    Converts a relative binary timestamp to two timespec structures
    that express relative time and inaccuracy.

    Format

      #include <utc.h>

      int utc_binreltime(*timesp, *inaccsp, *utc)

         reltimespec_t *timesp;
         timespec_t *inaccsp;
         const utc_t *utc;

1  –  Parameters

    Input

 utc

    Relative binary timestamp.

    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.

2  –  Description

    The Binary Relative Time routine converts a relative binary
    timestamp to two timespec structures that express relative
    time and inaccuracy. These timespec structures describe a time
    interval.

3  –  Returns

     0   Indicates that the routine executed successfully.
    -1   Indicates an invalid time argument or invalid results.

4  –  Example

    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));

5  –  Related Functions

    utc_mkbinreltime
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