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1.1 ! root 1: /* systm.h 6.1 83/07/29 */ ! 2: ! 3: /* ! 4: * Random set of variables ! 5: * used by more than one ! 6: * routine. ! 7: */ ! 8: int hand; /* current index into coremap used by daemon */ ! 9: extern char version[]; /* system version */ ! 10: ! 11: /* ! 12: * Nblkdev is the number of entries ! 13: * (rows) in the block switch. It is ! 14: * set in binit/bio.c by making ! 15: * a pass over the switch. ! 16: * Used in bounds checking on major ! 17: * device numbers. ! 18: */ ! 19: int nblkdev; ! 20: ! 21: /* ! 22: * Number of character switch entries. ! 23: * Set by cinit/prim.c ! 24: */ ! 25: int nchrdev; ! 26: ! 27: int nswdev; /* number of swap devices */ ! 28: int mpid; /* generic for unique process id's */ ! 29: char runin; /* scheduling flag */ ! 30: char runout; /* scheduling flag */ ! 31: int runrun; /* scheduling flag */ ! 32: char kmapwnt; /* kernel map want flag */ ! 33: char curpri; /* more scheduling */ ! 34: ! 35: int maxmem; /* actual max memory per process */ ! 36: int physmem; /* physical memory on this CPU */ ! 37: ! 38: int nswap; /* size of swap space */ ! 39: int updlock; /* lock for sync */ ! 40: daddr_t rablock; /* block to be read ahead */ ! 41: int rasize; /* size of block in rablock */ ! 42: extern int intstack[]; /* stack for interrupts */ ! 43: dev_t rootdev; /* device of the root */ ! 44: dev_t dumpdev; /* device to take dumps on */ ! 45: long dumplo; /* offset into dumpdev */ ! 46: dev_t swapdev; /* swapping device */ ! 47: dev_t argdev; /* device for argument lists */ ! 48: ! 49: #ifdef vax ! 50: extern int icode[]; /* user init code */ ! 51: extern int szicode; /* its size */ ! 52: #endif ! 53: ! 54: daddr_t bmap(); ! 55: caddr_t calloc(); ! 56: unsigned max(); ! 57: unsigned min(); ! 58: int memall(); ! 59: int uchar(), schar(); ! 60: int vmemall(); ! 61: caddr_t wmemall(); ! 62: swblk_t vtod(); ! 63: ! 64: /* ! 65: * Structure of the system-entry table ! 66: */ ! 67: extern struct sysent ! 68: { ! 69: int sy_narg; /* total number of arguments */ ! 70: int (*sy_call)(); /* handler */ ! 71: } sysent[]; ! 72: ! 73: int noproc; /* no one is running just now */ ! 74: char *panicstr; ! 75: int wantin; ! 76: int boothowto; /* reboot flags, from console subsystem */ ! 77: int selwait; ! 78: ! 79: extern char vmmap[]; /* poor name! */ ! 80: ! 81: /* casts to keep lint happy */ ! 82: #define insque(q,p) _insque((caddr_t)q,(caddr_t)p) ! 83: #define remque(q) _remque((caddr_t)q) ! 84: #define queue(q,p) _queue((caddr_t)q,(caddr_t)p) ! 85: #define dequeue(q) _dequeue((caddr_t)q)
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