FTIME(3P)                                           POSIX Programmer's Manual                                          FTIME(3P)



PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (con-
       sult the corresponding Linux manual page for details of Linux behavior), or the  interface  may  not  be  implemented  on
       Linux.

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 sec-
       onds and milliseconds portions, respectively, of the current time in seconds since the Epoch. The contents of  the  time-
       zone 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(). Real-
       time 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       This function may be withdrawn in a future version.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, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                     FTIME(3P)