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Annotation of 41BSD/4.0.upgrade/sys/h/systm.h, revision 1.1.1.1

1.1       root        1: /*     systm.h 4.17    81/05/05        */
                      2: 
                      3: /*
                      4:  * Random set of variables
                      5:  * used by more than one
                      6:  * routine.
                      7:  */
                      8: int    hz;                     /* frequency of the clock */
                      9: int    timezone;               /* minutes west from greenwich */
                     10: int    dstflag;                /* daylight savings time in effect? */
                     11: char   canonb[CANBSIZ];        /* buffer for erase and kill (#@) */
                     12: char   version[];              /* system version */
                     13: int    lbolt;                  /* time of day in 60th not in time */
                     14: time_t time;                   /* time in sec from 1970 */
                     15: time_t bootime;                /* time at which booted */
                     16: 
                     17: int    hand;                   /* current index into coremap used by daemon */
                     18: 
                     19: /*
                     20:  * Nblkdev is the number of entries
                     21:  * (rows) in the block switch. It is
                     22:  * set in binit/bio.c by making
                     23:  * a pass over the switch.
                     24:  * Used in bounds checking on major
                     25:  * device numbers.
                     26:  */
                     27: int    nblkdev;
                     28: 
                     29: /*
                     30:  * Number of character switch entries.
                     31:  * Set by cinit/prim.c
                     32:  */
                     33: int    nchrdev;
                     34: 
                     35: int    nswdev;                 /* number of swap devices */
                     36: int    mpid;                   /* generic for unique process id's */
                     37: char   runin;                  /* scheduling flag */
                     38: char   runout;                 /* scheduling flag */
                     39: int    runrun;                 /* scheduling flag */
                     40: char   kmapwnt;                /* kernel map want flag */
                     41: char   curpri;                 /* more scheduling */
                     42: 
                     43: int    maxmem;                 /* actual max memory per process */
                     44: int    physmem;                /* physical memory on this CPU */
                     45: 
                     46: int    nswap;                  /* size of swap space */
                     47: int    updlock;                /* lock for sync */
                     48: daddr_t        rablock;                /* block to be read ahead */
                     49: extern int intstack[];         /* stack for interrupts */
                     50: dev_t  rootdev;                /* device of the root */
                     51: dev_t  dumpdev;                /* device to take dumps on */
                     52: long   dumplo;                 /* offset into dumpdev */
                     53: dev_t  swapdev;                /* swapping device */
                     54: dev_t  argdev;                 /* device for argument lists */
                     55: dev_t  pipedev;                /* pipe device */
                     56: 
                     57: extern int icode[];            /* user init code */
                     58: extern int szicode;            /* its size */
                     59: 
                     60: dev_t  getmdev();
                     61: daddr_t        bmap();
                     62: caddr_t        calloc();
                     63: unsigned max();
                     64: unsigned min();
                     65: int    memall();
                     66: int    uchar(), schar();
                     67: int    vmemall();
                     68: char   *wmemall();
                     69: swblk_t        vtod();
                     70: 
                     71: /*
                     72:  * Structure of the system-entry table
                     73:  */
                     74: extern struct sysent
                     75: {
                     76:        int     sy_narg;                /* total number of arguments */
                     77:        int     (*sy_call)();           /* handler */
                     78: } sysent[];
                     79: 
                     80: char   vmmap[];                /* poor name! */
                     81: int    umbabeg,umbaend;        /* where sensitive vm begins/ends */
                     82: int    noproc;                 /* no one is running just now */
                     83: extern int catcher[256];
                     84: char   *panicstr;
                     85: int    wantin;
                     86: int    boothowto;              /* reboot flags, from console subsystem */

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