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/*-
* Copyright (c) 1982, 1988, 1991, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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.
*
* @(#)systm.h 8.7 (Berkeley) 3/29/95
* $Id$
*/
#ifndef _SYS_SYSTM_H_
#define _SYS_SYSTM_H_
#include <machine/cpufunc.h>
extern int securelevel; /* system security level (see init(8)) */
extern int cold; /* nonzero if we are doing a cold boot */
extern const char *panicstr; /* panic message */
extern char version[]; /* system version */
extern char copyright[]; /* system copyright */
extern int nblkdev; /* number of entries in bdevsw */
extern int nchrdev; /* number of entries in cdevsw */
extern struct swdevt *swdevt; /* swap-device information */
extern int nswdev; /* number of swap devices */
extern int nswap; /* size of swap space */
extern int selwait; /* select timeout address */
extern u_char curpriority; /* priority of current process */
extern int physmem; /* physical memory */
extern dev_t dumpdev; /* dump device */
extern long dumplo; /* offset into dumpdev */
extern dev_t rootdev; /* root device */
extern struct vnode *rootvp; /* vnode equivalent to above */
extern dev_t swapdev; /* swapping device */
extern struct vnode *swapdev_vp;/* vnode equivalent to above */
extern int boothowto; /* reboot flags, from console subsystem */
extern int bootverbose; /* nonzero to print verbose messages */
/*
* General function declarations.
*/
void Debugger __P((const char *msg));
int nullop __P((void));
int eopnotsupp __P((void));
int einval __P((void));
int seltrue __P((dev_t dev, int which, struct proc *p));
int ureadc __P((int, struct uio *));
void *hashinit __P((int count, int type, u_long *hashmask));
void *phashinit __P((int count, int type, u_long *nentries));
void panic __P((const char *, ...)) __dead2;
void boot __P((int)) __dead2;
void cpu_boot __P((int));
void tablefull __P((const char *));
int addlog __P((const char *, ...));
int kvprintf __P((char const *, void (*)(int, void*), void *, int,
_BSD_VA_LIST_));
void log __P((int, const char *, ...));
int printf __P((const char *, ...));
int sprintf __P((char *buf, const char *, ...));
void uprintf __P((const char *, ...));
void ttyprintf __P((struct tty *, const char *, ...));
#define bcopy(f,t,n) memcpy((t),(f),(n))
#define bzero(p,n) memset((p),(0),(n))
int copystr __P((const void *kfaddr, void *kdaddr, size_t len,
size_t *lencopied));
int copyinstr __P((const void *udaddr, void *kaddr, size_t len,
size_t *lencopied));
int copyin __P((const void *udaddr, void *kaddr, size_t len));
int copyout __P((const void *kaddr, void *udaddr, size_t len));
int fubyte __P((const void *base));
int fuibyte __P((const void *base));
int subyte __P((void *base, int byte));
int suibyte __P((void *base, int byte));
int fuword __P((const void *base));
int suword __P((void *base, int word));
int susword __P((void *base, int word));
int hzto __P((struct timeval *tv));
void realitexpire __P((void *));
struct clockframe;
void hardclock __P((struct clockframe *frame));
void softclock __P((void));
void statclock __P((struct clockframe *frame));
void startprofclock __P((struct proc *));
void stopprofclock __P((struct proc *));
void setstatclockrate __P((int hzrate));
void hardupdate __P((long));
void hardpps __P((struct timeval *tvp, long usec));
#include <sys/libkern.h>
/* Initialize the world */
extern void consinit(void);
extern void usrinfoinit(void);
extern void cpu_initclocks(void);
extern void vntblinit(void);
extern void nchinit(void);
/* Finalize the world. */
void shutdown_nice __P((void));
/*
* Kernel to clock driver interface.
*/
void inittodr __P((time_t base));
void resettodr __P((void));
void startrtclock __P((void));
/* Timeouts */
typedef void (timeout_t)(void *); /* actual timeout function type */
typedef timeout_t *timeout_func_t; /* a pointer to this type */
void timeout(timeout_func_t, void *, int);
void untimeout(timeout_func_t, void *);
void logwakeup __P((void));
/* Various other callout lists that modules might want to know about */
/* shutdown callout list definitions */
typedef void (*bootlist_fn)(int,void *);
int at_shutdown(bootlist_fn function, void *arg, int);
int rm_at_shutdown(bootlist_fn function, void *arg);
#define SHUTDOWN_PRE_SYNC 0
#define SHUTDOWN_POST_SYNC 1
/* forking */ /* XXX not yet */
typedef void (*forklist_fn)(struct proc *parent,struct proc *child,int flags);
int at_fork(forklist_fn function);
int rm_at_fork(forklist_fn function);
/* exiting */
typedef void (*exitlist_fn)(struct proc *procp);
int at_exit(exitlist_fn function);
int rm_at_exit(exitlist_fn function);
/* Not exactly a callout LIST, but a callout entry.. */
/* Allow an external module to define a hardware watchdog tickler */
/* Normally a process would do this, but there are times when the */
/* kernel needs to be able to hold off the watchdog, when the process */
/* is not active, e.g. when dumping core. Costs us a whole 4 bytes to */
/* make this generic. the variable is in kern_shutdown.c */
typedef void (*watchdog_tickle_fn)(void);
extern watchdog_tickle_fn wdog_tickler;
/*
* Common `proc' functions are declared here so that proc.h can be included
* less often.
*/
int tsleep __P((void *chan, int pri, char *wmesg, int timo));
void wakeup __P((void *chan));
#endif /* !_SYS_SYSTM_H_ */
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