59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* clktck.c - get the value of CLK_TCK. */
|
|
|
|
/* Copyright (C) 1997 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Bash, the Bourne Again SHell.
|
|
|
|
Bash is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2, or (at your option) any later
|
|
version.
|
|
|
|
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with Bash; see the file COPYING. If not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA */
|
|
|
|
#include <config.h>
|
|
|
|
#include <bashtypes.h>
|
|
#include <sys/param.h>
|
|
|
|
#if defined (HAVE_UNISTD_H)
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#if defined (HAVE_LIMITS_H)
|
|
# include <limits.h>
|
|
#endif
|
|
|
|
#if !defined (HAVE_SYSCONF) || !defined (_SC_CLK_TCK)
|
|
# if !defined (CLK_TCK)
|
|
# if defined (HZ)
|
|
# define CLK_TCK HZ
|
|
# else
|
|
# define CLK_TCK 60
|
|
# endif
|
|
# endif /* !CLK_TCK */
|
|
#endif /* !HAVE_SYSCONF && !_SC_CLK_TCK */
|
|
|
|
long
|
|
get_clk_tck ()
|
|
{
|
|
static long retval = 0;
|
|
|
|
if (retval != 0)
|
|
return (retval);
|
|
|
|
#if defined (HAVE_SYSCONF) && defined (_SC_CLK_TCK)
|
|
retval = sysconf (_SC_CLK_TCK);
|
|
#else /* !SYSCONF || !_SC_CLK_TCK */
|
|
retval = CLK_TCK;
|
|
#endif /* !SYSCONF || !_SC_CLK_TCK */
|
|
|
|
return (retval);
|
|
}
|