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Annotation of researchv9/sys/h/systm.h, revision 1.1

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

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