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ftime(3)


NAME

   ftime - return date and time

SYNOPSIS

   #include <sys/timeb.h>

   int ftime(struct timeb *tp);

DESCRIPTION

   This  function  returns  the  current  time as seconds and milliseconds
   since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).  The time is returned
   in tp, which is declared as follows:

       struct timeb {
           time_t         time;
           unsigned short millitm;
           short          timezone;
           short          dstflag;
       };

   Here  time is the number of seconds since the Epoch, and millitm is the
   number of  milliseconds  since  time  seconds  since  the  Epoch.   The
   timezone  field  is the local timezone measured in minutes of time west
   of  Greenwich  (with  a  negative  value  indicating  minutes  east  of
   Greenwich).   The  dstflag  field is a flag that, if nonzero, indicates
   that Daylight Saving time applies locally during the  appropriate  part
   of the year.

   POSIX.1-2001  says that the contents of the timezone and dstflag fields
   are unspecified; avoid relying on them.

RETURN VALUE

   This function always returns  0.   (POSIX.1-2001  specifies,  and  some
   systems document, a -1 error return.)

ATTRIBUTES

   For   an   explanation   of   the  terms  used  in  this  section,  see
   attributes(7).

   
   Interface  Attribute      Value   
   
   ftime()    Thread safety  MT-Safe

CONFORMING TO

   4.2BSD,  POSIX.1-2001.   POSIX.1-2008  removes  the  specification   of
   ftime().

   This  function  is  obsolete.   Don't  use  it.  If the time in seconds
   suffices, time(2) can  be  used;  gettimeofday(2)  gives  microseconds;
   clock_gettime(2) gives nanoseconds but is not as widely available.

BUGS

   Early  glibc2  is buggy and returns 0 in the millitm field; glibc 2.1.1
   is correct again.

SEE ALSO

   gettimeofday(2), time(2)

COLOPHON

   This page is part of release 4.09 of the Linux  man-pages  project.   A
   description  of  the project, information about reporting bugs, and the
   latest    version    of    this    page,    can     be     found     at
   https://www.kernel.org/doc/man-pages/.



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