/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* * University Copyright- Copyright (c) 1982, 1986, 1988 * The Regents of the University of California * All Rights Reserved * * University Acknowledgment- Portions of this document are derived from * software developed by the University of California, Berkeley, and its * contributors. */ #ifndef _SYS_PARAM_H #define _SYS_PARAM_H /* * Fundamental variables; don't change too often. * * This file is included here for compatibility with * SunOS, but it does *not* include all the values * define in the SunOS version of this file. */ #include <sys/isa_defs.h> #include <limits.h> #include <unistd.h> #ifdef __cplusplus extern "C" { #endif #ifndef MAX_INPUT #define MAX_INPUT 512 /* Maximum bytes stored in the input queue */ #endif #ifndef MAX_CANON #define MAX_CANON 256 /* Maximum bytes for canoical processing */ #endif #define UID_NOBODY 60001 #define GID_NOBODY 60001 #define UID_NOACCESS 60002 /* user ID no access */ #define MAXPID ((pid_t)sysconf(_SC_MAXPID)) /* max process id */ #define MAXUID 2147483647 /* max user id */ #define MAXLINK 32767 /* max links */ #define NMOUNT 40 /* est. of # mountable fs for quota calc */ /* The values below are defined in limits.h */ #define NOFILE OPEN_MAX /* max open files per process */ #define CANBSIZ 256 /* max size of typewriter line */ #define HZ ((int)sysconf(_SC_CLK_TCK)) /* ticks/second of the clock */ #define TICK (1000000000/((int)sysconf(_SC_CLK_TCK))) #define NCARGS 0x100000 /* # characters in exec arglist */ /* must be multiple of NBPW. */ /* * These define the maximum and minimum allowable values of the * configurable parameter NGROUPS_MAX. */ #define NGROUPS_UMAX 32 #define NGROUPS_UMIN 8 #define NGROUPS NGROUPS_MAX /* max number groups, from limits.h */ #define NOGROUP -1 /* marker for empty group set member */ /* * Priorities. Should not be altered too much. */ #define PMASK 0177 #define PCATCH 0400 #define PNOSTOP 01000 #define PSWP 0 #define PINOD 10 #define PSNDD PINOD #define PAMAP PINOD #define PPMAP PINOD #define PRIBIO 20 #define PZERO 25 #define PMEM 0 #define NZERO 20 #define PPIPE 26 #define PVFS 27 #define PWAIT 30 #define PLOCK 35 #define PSLEP 39 #define PUSER 60 #define PIDLE 127 /* * Fundamental constants of the implementation--cannot be changed easily. */ #define NBPS 0x20000 /* Number of bytes per segment */ #define NBPW sizeof (int) /* number of bytes in an integer */ #define CMASK 0 /* default mask for file creation */ #define CDLIMIT (1L<<11) /* default max write address */ #define NODEV (dev_t)(-1) #define NBPSCTR 512 /* Bytes per disk sector. */ #define UBSIZE 512 /* unix block size. */ #define SCTRSHFT 9 /* Shift for BPSECT. */ #define lobyte(X) (((unsigned char *)&(X))[1]) #define hibyte(X) (((unsigned char *)&(X))[0]) #define loword(X) (((ushort_t *)&(X))[1]) #define hiword(X) (((ushort_t *)&(X))[0]) /* REMOTE -- whether machine is primary, secondary, or regular */ #define SYSNAME 9 /* # chars in system name */ #define PREMOTE 39 /* * MAXPATHLEN defines the longest permissible path length, * including the terminating null, after expanding symbolic links. * MAXSYMLINKS defines the maximum number of symbolic links * that may be expanded in a path name. It should be set high * enough to allow all legitimate uses, but halt infinite loops * reasonably quickly. * MAXNAMELEN is the length (including the terminating null) of * the longest permissible file (component) name. */ #define MAXPATHLEN 1024 #define MAXSYMLINKS 20 #define MAXNAMELEN 256 #ifndef NADDR #define NADDR 13 #endif /* * The following are defined to be the same as * defined in /usr/include/limits.h. They are * needed for pipe and FIFO compatibility. */ #ifndef PIPE_BUF /* max # bytes atomic in write to a pipe */ #define PIPE_BUF 5120 #endif /* PIPE_BUF */ #ifndef PIPE_MAX /* max # bytes written to a pipe in a write */ #define PIPE_MAX 5120 #endif /* PIPE_MAX */ #define PIPEBUF PIPE_BUF /* pipe buffer size */ #ifndef NBBY #define NBBY 8 /* number of bits per byte */ #endif /* macros replacing interleaving functions */ #define dkblock(bp) ((bp)->b_blkno) #define dkunit(bp) (minor((bp)->b_dev) >> 3) /* * File system parameters and macros. * * The file system is made out of blocks of at most MAXBSIZE units, * with smaller units (fragments) only in the last direct block. * MAXBSIZE primarily determines the size of buffers in the buffer * pool. It may be made larger without any effect on existing * file systems; however making it smaller make make some file * systems unmountable. * * Note that the blocked devices are assumed to have DEV_BSIZE * "sectors" and that fragments must be some multiple of this size. */ #define MAXBSIZE 8192 #define DEV_BSIZE 512 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #define MAXFRAG 8 #ifdef _LP64 #define MAXOFF_T 0x7fffffffffffffffl #define MAXOFFSET_T 0x7fffffffffffffffll #else #define MAXOFF_T 0x7fffffff #ifndef _LONGLONG_TYPE #define MAXOFFSET_T 0x7fffffff #else #define MAXOFFSET_T 0x7fffffffffffffffLL #endif #endif /* _LP64 */ #define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \ ((unsigned)(bytes) >> DEV_BSHIFT) #define dbtob(db) /* calculates (db * DEV_BSIZE) */ \ ((unsigned)(db) << DEV_BSHIFT) /* * PAGES* describes the logical page size used by the system. */ #define PAGESIZE (sysconf(_SC_PAGESIZE)) /* All the above, for logical */ #define PAGEOFFSET (PAGESIZE - 1) #define PAGEMASK (~PAGEOFFSET) /* * Some random macros for units conversion. */ /* * pages to bytes, and back (with and without rounding) */ #define ptob(x) ((x) * PAGESIZE) #define btop(x) (((unsigned)(x)) / PAGESIZE) #define btopr(x) ((((unsigned)(x) + PAGEOFFSET) / PAGESIZE)) /* * Signals */ #include <sys/signal.h> #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 fast min/max. */ #ifndef MIN #define MIN(a, b) (((a) < (b))?(a):(b)) #endif #ifndef MAX #define MAX(a, b) (((a) > (b))?(a):(b)) #endif #define howmany(x, y) (((x)+((y)-1))/(y)) #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* * Scale factor for scaled integers used to count * %cpu time and load averages. */ #define FSHIFT 8 /* bits to right of fixed binary point */ #define FSCALE (1<<FSHIFT) /* * Maximum size of hostname recognized and stored in the kernel. * Same as in /usr/include/netdb.h */ #ifndef MAXHOSTNAMELEN #define MAXHOSTNAMELEN 256 #endif #ifdef __cplusplus } #endif #endif /* _SYS_PARAM_H */
