Man Pages

ftime(3p) - phpMan ftime(3p) - phpMan

Command: man perldoc info search(apropos)  


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 dif-
       fer (consult 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 seconds and milliseconds portions, respectively, of the current time in seconds since the Epoch.  The  con-
       tents 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 granular-
       ity 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       This function may be withdrawn in a future version.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, Stan-
       dard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base  Specifica-
       tions  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 Stan-
       dard,  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 .



IEEE/The Open Group                  2003                            FTIME(3P)