1 /* Old-style Unix parameters and limits. Hurd version. 2 Copyright (C) 1993-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #ifndef _SYS_PARAM_H 20 # error "Never use <bits/param.h> directly; include <sys/param.h> instead." 21 #endif 22 23 #include <bits/mach/param.h> 24 25 /* This file is deprecated and is provided only for compatibility with 26 Unix systems. It is unwise to include this file on programs which 27 are intended only for GNU systems. 28 29 Parts from: 30 31 * Copyright (c) 1982, 1986, 1989 The Regents of the University of California. 32 * All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 4. Neither the name of the University nor the names of its contributors 43 * may be used to endorse or promote products derived from this software 44 * without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 * 58 * @(#)param.h 7.23 (Berkeley) 5/6/91 59 */ 60 61 62 /* What versions of BSD we are compatible with. */ 63 #define BSD 199306 /* System version (year & month). */ 64 #define BSD4_3 1 65 #define BSD4_4 1 66 67 #define GNU 1994100 /* GNU version (year, month, and release). */ 68 69 70 /* BSD names for some <limits.h> values. We do not define the BSD names 71 for the values which are not statically limited, such as NOFILE. */ 72 73 74 /* There is nothing quite equivalent in GNU to Unix "mounts", but there is 75 no limit on the number of simultaneously attached filesystems. */ 76 #define NMOUNT INT_MAX 77 78 79 /* Scale factor for scaled integers used to count %cpu time and load avgs. 80 81 The number of CPU `tick's that map to a unique `%age' can be expressed 82 by the formula (1 / (2 ^ (FSHIFT - 11))). The maximum load average that 83 can be calculated (assuming 32 bits) can be closely approximated using 84 the formula (2 ^ (2 * (16 - FSHIFT))) for (FSHIFT < 15). */ 85 86 #define FSHIFT 11 /* Bits to right of fixed binary point. */ 87 #define FSCALE (1<<FSHIFT) 88