GETTIMEOFDAY(3P) - phpMan

GETTIMEOFDAY(3P)           POSIX Programmer's Manual          GETTIMEOFDAY(3P)
PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.
NAME
       gettimeofday -- get the date and time
SYNOPSIS
       #include <sys/time.h>
       int gettimeofday(struct timeval *restrict tp, void *restrict tzp);
DESCRIPTION
       The gettimeofday() function shall obtain the current time, expressed as
       seconds  and  microseconds since the Epoch, and store it in the timeval
       structure pointed to by tp.  The resolution  of  the  system  clock  is
       unspecified.
       If tzp is not a null pointer, the behavior is unspecified.
RETURN VALUE
       The  gettimeofday()  function  shall  return  0  and  no value shall be
       reserved to indicate an error.
ERRORS
       No errors are defined.
       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       Applications should use the clock_gettime()  function  instead  of  the
       obsolescent gettimeofday() function.
RATIONALE
       None.
FUTURE DIRECTIONS
       The gettimeofday() function may be removed in a future version.
SEE ALSO
       clock_getres(), ctime()
       The Base Definitions volume of POSIX.1-2008, <sys_time.h>
COPYRIGHT
       Portions  of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri-
       cal  and  Electronics  Engineers,  Inc  and  The  Open Group.  (This is
       POSIX.1-2008 with the 2013 Technical Corrigendum  1  applied.)  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.unix.org/online.html .
       Any typographical or formatting errors that appear  in  this  page  are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors,  see  https://www.ker-
       nel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group                  2013                     GETTIMEOFDAY(3P)