/* Copyright (C) 1995,1996,1997,2000,2001,2003 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _SYS_PARAM_H #define _SYS_PARAM_H 1 #include <limits.h> #include <linux/limits.h> #include <linux/param.h> /* BSD names for some <limits.h> values. */ #define NBBY CHAR_BIT #ifndef NGROUPS # define NGROUPS NGROUPS_MAX #endif #define MAXSYMLINKS 20 #define CANBSIZ MAX_CANON #define NCARGS ARG_MAX #define MAXPATHLEN PATH_MAX /* The following is not really correct but it is a value we used for a long time and which seems to be usable. People should not use NOFILE anyway. */ #define NOFILE 256 #include <sys/types.h> /* Bit map related macros. */ #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) /* Macros for counting and rounding. */ #ifndef howmany # define howmany(x, y) (((x) + ((y) - 1)) / (y)) #endif #ifdef __GNUC__ # define roundup(x, y) (__builtin_constant_p (y) && powerof2 (y) \ ? (((x) + (y) - 1) & ~((y) - 1)) \ : ((((x) + ((y) - 1)) / (y)) * (y))) #else # define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) #endif #define powerof2(x) ((((x) - 1) & (x)) == 0) /* Macros for min/max. */ #define MIN(a,b) (((a)<(b))?(a):(b)) #define MAX(a,b) (((a)>(b))?(a):(b)) /* Unit of `st_blocks'. */ #define DEV_BSIZE 512 #endif /* sys/param.h */