/* 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); }