trusty (3) ftime.3posix.gz

NAME

       ftime - get date and time (LEGACY)

SYNOPSIS

       #include <sys/timeb.h>

       int ftime(struct timeb *tp);

DESCRIPTION

       The  ftime()  function  shall set the time and millitm members of the timeb structure pointed to by tp to
       contain the seconds and milliseconds portions, respectively, of the current time  in  seconds  since  the
       Epoch. The contents of the timezone and dstflag members of tp after a call to ftime() are unspecified.

       The  system  clock  need  not  have millisecond granularity. Depending on any granularity (particularly a
       granularity of one) renders code non-portable.

RETURN VALUE

       Upon successful completion, the ftime() function shall return 0; otherwise, -1 shall be returned.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

   Getting the Current Time and Date
       The following example shows how to get the current system time values using  the  ftime()  function.  The
       timeb structure pointed to by tp is filled with the current system time values for time and millitm.

              #include <sys/timeb.h>

              struct timeb tp;
              int          status;
              ...
              status = ftime(&tp);

APPLICATION USAGE

       For applications portability, the time() function should be used to determine the current time instead of
       ftime(). Realtime applications should use clock_gettime()  to  determine  the  current  time  instead  of
       ftime().

RATIONALE

       None.

FUTURE DIRECTIONS

       This function may be withdrawn in a future version.

SEE ALSO

       clock_getres() , ctime() , gettimeofday() , time() , the Base Definitions volume of IEEE Std 1003.1-2001,
       <sys/timeb.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
       Standard  for  Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
       Inc  and  The  Open Group. In the event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard  is  the  referee  document.  The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .