/sys$common/syshlp/helplib.hlb DCE_DTS, Application Routines, utc_mkreltime  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 NAME

   utc_mkreltime - Converts a tm structure that expresses relative time
                   to a relative binary timestamp

 SYNOPSIS

   #include <dce/utc.h>

   int utc_mkreltime( utc_t *utc,
                      struct tm *timetm,
                      long tns,
                      struct tm *inacctm,
                      long ins );

 PARAMETERS

   Input

   timetm
          A tm structure that expresses a relative time. On input,
          tm_wday and tm_yday are ignored; the value of tm_isdst
          should be -1.

   tns    Nanoseconds since the Time component.

   inacctm
          A tm structure that expresses seconds of inaccuracy.  If
          a null pointer is passed, or if tm_yday is negative, the
          inaccuracy is considered to be unspecified. On input,
          tm_mday, tm_mon, tm_year, tm_wday, tm_isdst, and tm_zone
          are ignored.

   ins    Nanoseconds of the inaccuracy component.

   Output

   utc    Resulting relative binary timestamp.

 DESCRIPTION

   The utc_mkreltime() routine converts a tm structure that expresses
   relative time to a relative binary timestamp. Additional inputs
   include nanoseconds since the last second of Time and nanoseconds
   of inaccuracy.

 RETURN VALUES

    0    Indicates that the routine executed successfully.

   -1    Indicates an invalid time argument or invalid results.

 EXAMPLES

   The following example converts the relative time: 125-03:12:30.1I120.25
   to a relative binary timestamp.

        utc_t       utc;
        struct tm   tmtime,tminacc;
        long        tnsec,insec;

        /* Fill in the fields            */
        memset((void *)&tmtime,0,sizeof(tmtime));
        tmtime.tm_mday = 125;
        tmtime.tm_hour = 3;
        tmtime.tm_min  = 12;
        tmtime.tm_sec  = 30;
        tnsec = 100000000;     /* .1 * 1.0E9 */

        memset((void *)&tminacc,0,sizeof(tminacc));
        tminacc.tm_sec = 120;
        tnsec = 250000000;     /* .25 * 1.0E9 */

    /* Convert to a relative binary timestamp...        */
    utc_mkreltime(&utc,     /* Out: Resultant relative binary timestamp */
                  &tmtime,  /* In:  tm struct that represents input     */
                  tnsec,    /* In:  Nanoseconds from input              */
                  &tminacc, /* In:  tm struct that represents inacc     */
                  insec);   /* In:  Nanoseconds from input              */