| /* Copyright (C) 1993, 1994, 1995, 1997, 1999 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. */ |
| |
| /* This file is deprecated and is provided only for compatibility with |
| Unix systems. It is unwise to include this file on programs which |
| are intended only for GNU systems. |
| |
| Parts from: |
| |
| * Copyright (c) 1982, 1986, 1989 The Regents of the University of California. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * @(#)param.h 7.23 (Berkeley) 5/6/91 |
| */ |
| |
| |
| #ifndef _SYS_PARAM_H |
| |
| #define _SYS_PARAM_H 1 |
| #include <features.h> |
| |
| #define __need_NULL |
| #include <stddef.h> |
| |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <signal.h> |
| #include <endian.h> |
| #include <limits.h> |
| #ifdef notyet |
| # include <ufs/param.h> |
| #endif |
| |
| |
| /* What versions of BSD we are compatible with. */ |
| #define BSD 199306 /* System version (year & month). */ |
| #define BSD4_3 1 |
| #define BSD4_4 1 |
| |
| #define GNU 1994100 /* GNU version (year, month, and release). */ |
| |
| |
| /* BSD names for some <limits.h> values. We do not define the BSD names |
| for the values which are not statically limited, such as NOFILE. */ |
| |
| #define NBBY CHAR_BIT |
| #define NGROUPS NGROUPS_MAX |
| #define MAXSYMLINKS SYMLOOP_MAX |
| #define CANBSIZ MAX_CANON /* XXX ? */ |
| |
| /* ARG_MAX is unlimited, but we define NCARGS for BSD programs that want to |
| compare against some fixed limit. */ |
| #define NCARGS INT_MAX |
| |
| /* There is nothing quite equivalent in GNU to Unix "mounts", but there is |
| no limit on the number of simultaneously attached filesystems. */ |
| #define NMOUNT INT_MAX |
| |
| |
| /* Magical constants. */ |
| #define NOGROUP 65535 /* Marker for empty group set member. */ |
| #define NODEV ((dev_t) -1) /* Non-existent device. */ |
| |
| |
| /* 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 |
| #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) |
| #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)) |
| |
| |
| /* Scale factor for scaled integers used to count %cpu time and load avgs. |
| |
| The number of CPU `tick's that map to a unique `%age' can be expressed |
| by the formula (1 / (2 ^ (FSHIFT - 11))). The maximum load average that |
| can be calculated (assuming 32 bits) can be closely approximated using |
| the formula (2 ^ (2 * (16 - FSHIFT))) for (FSHIFT < 15). */ |
| |
| #define FSHIFT 11 /* Bits to right of fixed binary point. */ |
| #define FSCALE (1<<FSHIFT) |
| |
| #endif /* sys/param.h */ |