home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (c) 1984, 1986, 1987, 1988 AT&T */
- /* All Rights Reserved */
-
- /* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
- /* The copyright notice above does not evidence any */
- /* actual or intended publication of such source code. */
-
- /* Copyright (c) 1987, 1988 Microsoft Corporation */
- /* All Rights Reserved */
-
- /* This Module contains Proprietary Information of Microsoft */
- /* Corporation and should be treated as Confidential. */
-
- #ident "@(#)head.sys:systm.h 1.3.1.4"
-
- /*
- * Random set of variables used by more than one routine.
- */
-
- extern struct inode *rootdir; /* pointer to inode of root directory */
- extern short cputype; /* type of cpu = 40, 45, 70, 780, 0x3b15 */
- extern time_t lbolt; /* time in HZ since last boot */
- extern time_t time; /* time in sec from 1970 */
- extern int Dstflag; /* configurable timezone */
- extern int Timezone; /* configurable DST flag */
- extern int Hz; /* Ticks/second of the clock */
-
- extern char runin; /* scheduling flag */
- extern char runout; /* scheduling flag */
- extern char runrun; /* scheduling flag */
- extern char curpri; /* current priority */
- extern struct proc *curproc; /* current proc */
- extern struct proc *old_curproc;/* previous curproc */
- extern struct proc *oldproc; /* previous proc that exited */
- extern struct proc *runq; /* head of linked list of running processes */
-
- extern maxmem; /* max available memory (clicks) */
- extern physmem; /* physical memory (clicks) on this CPU */
- extern maxclick; /* Highest physical click + 1. */
- extern daddr_t swplo; /* block number of start of swap space */
- extern nswap; /* size of swap space in blocks*/
- extern dev_t rootdev; /* device of the root */
- extern dev_t swapdev; /* swapping device */
- extern dev_t pipedev; /* pipe device */
- extern dev_t dumpdev; /* dump device */
- extern char *panicstr; /* panic string pointer */
- extern blkacty; /* active block devices */
- extern pwr_cnt, pwr_act;
- extern int (*pwr_clr[])();
-
- dev_t getmdev();
- struct inode *iget();
- struct inode *namei();
- struct inode *remote_call();
- struct buf *getblk();
- struct buf *geteblk();
- struct buf *bread();
- struct buf *breada();
- struct file *falloc();
- int upath();
- int spath();
- struct proc *prfind();
-
- /*
- * Structure of the system-entry table
- */
- extern struct sysent {
- char sy_narg; /* total number of arguments */
- char sy_setjmp; /* set to 1 if systrap() should not do a setjmp() */
- int (*sy_call)(); /* handler */
- } sysent[];
-
- extern int nsysent; /* number of valid entries in sysent */
-