| 1 | /* Copyright (C) 1995, 1996, 1997, 2000, 2001 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, write to the Free |
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 17 | 02111-1307 USA. */ |
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| 18 | |
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| 19 | #ifndef _SYS_PARAM_H |
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| 20 | #define _SYS_PARAM_H 1 |
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| 21 | |
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| 22 | #include <limits.h> |
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| 23 | #include <linux/limits.h> |
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| 24 | #include <linux/param.h> |
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| 25 | |
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| 26 | /* BSD names for some <limits.h> values. */ |
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| 27 | |
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| 28 | #define NBBY CHAR_BIT |
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| 29 | #ifndef NGROUPS |
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| 30 | # define NGROUPS NGROUPS_MAX |
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| 31 | #endif |
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| 32 | #define MAXSYMLINKS 20 |
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| 33 | #define CANBSIZ MAX_CANON |
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| 34 | #define NCARGS ARG_MAX |
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| 35 | #define MAXPATHLEN PATH_MAX |
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| 36 | /* The following is not really correct but it is a value we used for a |
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| 37 | long time and which seems to be usable. People should not use NOFILE |
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| 38 | anyway. */ |
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| 39 | #define NOFILE 256 |
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| 40 | |
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| 41 | |
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| 42 | #include <sys/types.h> |
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| 43 | |
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| 44 | /* Bit map related macros. */ |
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| 45 | #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) |
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| 46 | #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) |
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| 47 | #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) |
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| 48 | #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) |
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| 49 | |
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| 50 | /* Macros for counting and rounding. */ |
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| 51 | #ifndef howmany |
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| 52 | # define howmany(x, y) (((x)+((y)-1))/(y)) |
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| 53 | #endif |
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| 54 | #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) |
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| 55 | #define powerof2(x) ((((x)-1)&(x))==0) |
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| 56 | |
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| 57 | /* Macros for min/max. */ |
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| 58 | #define MIN(a,b) (((a)<(b))?(a):(b)) |
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| 59 | #define MAX(a,b) (((a)>(b))?(a):(b)) |
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| 60 | |
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| 61 | |
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| 62 | /* Unit of `st_blocks'. */ |
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| 63 | #define DEV_BSIZE 512 |
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| 64 | |
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| 65 | |
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| 66 | #endif /* sys/param.h */ |
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