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Length: 2050 (0x802)
Types: TextFile
Notes: UNIX file
Names: »systm.h«
└─⟦26887b7e0⟧ Bits:30009717 Comet 32 harddisk image
└─⟦28c352965⟧ »/a« UNIX Filesystem
└─⟦this⟧ »usr/include/sys/systm.h«
/*
* @(#)systm.h 3.6 7/14/83
* @(#)Copyright (C) 1983 by National Semiconductor Corp.
*/
/*
* Random set of variables
* used by more than one
* routine.
*/
/* extern char canonb[CANBSIZ]; /* buffer for erase and kill (#@) */
extern struct inode *rootdir; /* pointer to inode of root directory */
extern int lbolt; /* time of day in 60th not in time */
extern int hz; /* clock frequency */
extern time_t time; /* time in sec from 1970 */
/*
* Nblkdev is the number of entries
* (rows) in the block switch. It is
* set in binit/bio.c by making
* a pass over the switch.
* Used in bounds checking on major
* device numbers.
*/
extern int nblkdev;
/*
* Number of character switch entries.
* Set by cinit/prim.c
*/
extern int nchrdev;
extern char runrun; /* scheduling flag */
extern char runin; /* scheduling flag */
extern char runout; /* scheduling flag */
extern char curpri; /* more scheduling */
extern char noproc; /* no process running */
extern int wantin; /* more scheduling */
extern daddr_t swplo; /* block number of swap space */
extern int nswap; /* size of swap space */
extern int updlock; /* lock for sync */
extern daddr_t rablock; /* block for read ahead */
extern char regloc[]; /* locs. of saved user regs (trap.c) */
extern dev_t rootdev; /* device of the root */
extern dev_t pipedev; /* pipe device */
extern daddr_t bmap();
extern struct inode *ialloc();
extern struct inode *ifind();
extern struct inode *iget();
extern struct inode *owner();
extern struct inode *maknode();
extern struct inode *namei();
extern struct buf *alloc();
extern struct buf *getblk();
extern struct buf *geteblk();
extern struct buf *bread();
extern struct filsys *getfs();
extern struct file *getf();
extern struct file *falloc();
extern int uchar();
/*
* Structure of the system-entry table
*/
extern struct sysent { /* system call entry table */
char sy_narg; /* total number of arguments */
int (*sy_call)(); /* handler */
} sysent[];
#define SYSINDIR 0 /* ordinal of indirect sys call */