2000/1205/port/portdat.h (diff list | history)

port/portdat.h on 1991/0513
1991/0513		typedef struct Alarms Alarms;
1991/0428		typedef struct Block Block; typedef struct Chan Chan;
1999/0316		typedef struct Cmdbuf Cmdbuf;
1999/0629		typedef struct Cname Cname;
1993/0501		typedef struct Crypt Crypt;
1991/0428		typedef struct Dev Dev; typedef struct Dirtab Dirtab;
1991/0705		typedef struct Egrp Egrp;
1992/0623		typedef struct Evalue Evalue;
1991/0705		typedef struct Fgrp Fgrp;
2000/1205		typedef struct DevConf DevConf;
1991/0705		typedef struct Image Image;
1991/0428		typedef struct List List;
1999/0316		typedef struct Log Log; typedef struct Logflag Logflag;
1993/1013		typedef struct Mntcache Mntcache;
1991/0428		typedef struct Mount Mount;
1993/0501		typedef struct Mntrpc Mntrpc; typedef struct Mntwalk Mntwalk;
1992/0620		typedef struct Mnt Mnt;
1991/1011		typedef struct Mhead Mhead;
1991/0428		typedef struct Note Note; typedef struct Page Page;
1991/0705		typedef struct Palloc Palloc;
1992/0128		typedef struct Pgrps Pgrps;
1991/0428		typedef struct Pgrp Pgrp;
1993/0210		typedef struct Physseg Physseg;
1991/0428		typedef struct Proc Proc;
1991/0705		typedef struct Pte Pte;
1993/0501		typedef struct Pthash Pthash;
1991/0428		typedef struct QLock QLock; typedef struct Queue Queue; typedef struct Ref Ref; typedef struct Rendez Rendez;
1994/0812		typedef struct Rgrp Rgrp;
1991/1011		typedef struct RWlock RWlock;
1992/0625		typedef struct Sargs Sargs;
1991/0705		typedef struct Segment Segment;
1993/0501		typedef struct Session Session;
1992/0602		typedef struct Talarm Talarm;
1994/0221		typedef struct Target Target;
1991/0926		typedef struct Waitq Waitq;
1992/0307		typedef int Devgen(Chan*, Dirtab*, int, int, Dir*);
1991/0428
1999/0316
1993/0330		#include <auth.h> #include <fcall.h>
1992/0619
1991/0428		struct Ref { Lock;
1992/0309		long ref;
1991/0428		}; struct Rendez {
2000/0919		Lock;
1991/0428		Proc *p; }; struct QLock {
1991/1105		Lock use; /* to access Qlock structure */
1991/0428		Proc *head; /* next process waiting for object */ Proc *tail; /* last process waiting for object */
1991/1002		int locked; /* flag */
1991/0428		};
1991/1011		struct RWlock {
1998/0325		Lock use; Proc *head; /* list of waiting processes */ Proc *tail;
2000/0107		ulong wpc; /* pc of writer */ Proc *wproc; /* writing proc */
1998/0325		int readers; /* number of readers */ int writer; /* number of writers */
1991/1011		};
1992/0602		struct Talarm
1991/0428		{ Lock;
1992/0602		Proc *list;
1991/0428		};
1991/0513		struct Alarms {
1992/0516		QLock;
1991/0513		Proc *head; };
1993/0806		#define MAXSYSARG 5 /* for mount(fd, mpt, flag, arg, srv) */
1992/0625		struct Sargs { ulong args[MAXSYSARG]; };
1991/0428		/*
1993/0501		* Access types in namec & channel flags
1991/0428		*/ enum {
1991/0724		Aaccess, /* as in access, stat */ Atodir, /* as in chdir */ Aopen, /* for i/o */ Amount, /* to be mounted upon */ Acreate, /* file is to be created */
1993/0501		COPEN = 0x0001, /* for i/o */ CMSG = 0x0002, /* the message channel for a mount */ CCREATE = 0x0004, /* permits creation if c->mnt */ CCEXEC = 0x0008, /* close on exec */ CFREE = 0x0010, /* not in use */ CRCLOSE = 0x0020, /* remove on close */
1993/1016		CCACHE = 0x0080, /* client cache */
1991/0428		};
1994/0507		enum { BINTR = (1<<0), BFREE = (1<<1), };
1994/0306		struct Block {
1994/0321		Block* next; Block* list; uchar* rp; /* first unconsumed byte */ uchar* wp; /* first empty byte */ uchar* lim; /* 1 past the end of the buffer */ uchar* base; /* start of the buffer */
1995/0101		void (*free)(Block*);
1994/0507		ulong flag;
1994/0306		};
1994/0309		#define BLEN(s) ((s)->wp - (s)->rp)
1998/0923		#define BALLOC(s) ((s)->lim - (s)->base)
1994/0306
1991/0428		struct Chan { Ref;
1994/0225		Chan* next; /* allocation */ Chan* link;
1998/0319		vlong offset; /* in file */
1991/0428		ushort type;
1994/1124		ulong dev;
1991/0428		ushort mode; /* read/write */ ushort flag; Qid qid; int fid; /* for devmnt */
1998/0829		Mhead* mh; /* mount point that derived Chan */ Mhead* xmh; /* Last mount point crossed */ int uri; /* union read index */
1993/0501		ulong mountid;
1993/1013		Mntcache *mcp; /* Mount cache pointer */
1991/0428		union {
1994/0225		void* aux;
1991/0428		Qid pgrpid; /* for #p/notepg */
1994/0225		Mnt* mntptr; /* for devmnt */
1993/0501		ulong mid; /* for ns in devproc */
1998/0306		char tag[4]; /* for iproute */
1991/0428		};
1994/0225		Chan* mchan; /* channel to mounted server */
1991/0428		Qid mqid; /* qid of root of mount point */
1994/0225		Session*session;
1999/0629		Cname *name;
1991/0428		};
1999/0629		struct Cname { Ref; int alen; /* allocated length */ int len; /* strlen(s) */ char *s; };
1991/0428		struct Dev {
1997/0408		int dc; char* name;
1992/0824		void (*reset)(void); void (*init)(void); Chan* (*attach)(char*); Chan* (*clone)(Chan*, Chan*); int (*walk)(Chan*, char*); void (*stat)(Chan*, char*); Chan* (*open)(Chan*, int); void (*create)(Chan*, char*, int, ulong); void (*close)(Chan*);
1998/0319		long (*read)(Chan*, void*, long, vlong);
1995/0108		Block* (*bread)(Chan*, long, ulong);
1998/0319		long (*write)(Chan*, void*, long, vlong);
1995/0108		long (*bwrite)(Chan*, Block*, ulong);
1992/0824		void (*remove)(Chan*); void (*wstat)(Chan*, char*);
2000/1122		void (*power)(int); /* power mgt: power(1) → on, power (0) → off */
2000/1205		int (*config)(int, char*, DevConf*);
1991/0428		}; struct Dirtab { char name[NAMELEN]; Qid qid;
1998/0617		Length;
1991/0428		long perm;
1992/0808		};
1992/0824
1993/0501		enum { NSMAX = 1000, NSLOG = 7, NSCACHE = (1<<NSLOG), };
1994/0225		struct Mntwalk /* state for /proc/#/ns */
1993/0501		{
1999/0629		int cddone;
1993/0501		ulong id;
1994/0225		Mhead* mh; Mount* cm;
1993/0501		};
1991/0428		struct Mount { ulong mountid;
1994/0225		Mount* next; Mhead* head;
1994/0613		Mount* copy; Mount* order;
1994/0225		Chan* to; /* channel replacing channel */
1993/0501		int flag; char spec[NAMELEN];
1991/0428		};
1991/1011		struct Mhead
1991/0428		{
1998/0829		Ref; RWlock lock;
1994/0225		Chan* from; /* channel mounted upon */ Mount* mount; /* what's mounted upon it */ Mhead* hash; /* Hash chain */
1991/0428		};
1993/0501		struct Mnt { Ref; /* Count of attached channels */ Chan *c; /* Channel to file service */ Proc *rip; /* Reader in progress */ Mntrpc *queue; /* Queue of pending requests on this channel */
1999/1105		ulong id; /* Multiplexer id for channel check */
1993/0501		Mnt *list; /* Free list */
1999/1105		int flags; /* cache */
1993/0501		int blocksize; /* read/write block size */
1993/1121		char *partial; /* Outstanding read data */ int npart; /* Sizeof remains */
1993/0501		};
1992/0307		enum {
1991/0428		NUser, /* note provided externally */
1991/1105		NExit, /* deliver note quietly */ NDebug, /* print debug message */
1991/0428		}; struct Note { char msg[ERRLEN]; int flag; /* whether system posted it */ };
1992/0625		enum {
1993/0811		PG_NOFLUSH = 0,
2000/0123		PG_TXTFLUSH = 1, /* flush dcache and invalidate icache */ PG_DATFLUSH = 2, /* flush both i & d caches (UNUSED) */
1993/1212		PG_NEWCOL = 3, /* page has been recolored */
1993/0501		PG_MOD = 0x01, /* software modified bit */ PG_REF = 0x02, /* software referenced bit */
1992/0625		};
1991/0428
1991/0705		struct Page
1991/0428		{
1992/0625		Lock;
1991/0705		ulong pa; /* Physical address in memory */ ulong va; /* Virtual address for user */ ulong daddr; /* Disc address on swap */ ushort ref; /* Reference count */ char modref; /* Simulated modify/reference bits */
1993/0817		char color; /* Cache coloring */
1991/0705		char cachectl[MAXMACH]; /* Cache flushing control for putmmu */ Image *image; /* Associated text or swap image */ Page *next; /* Lru free list */ Page *prev; Page *hash; /* Image hash chains */ }; struct Swapalloc {
1991/0724		Lock; /* Free map lock */
1993/0501		int free; /* currently free swap pages */
1995/0319		uchar* swmap; /* Base of swap map in memory */ uchar* alloc; /* Round robin allocator */ uchar* last; /* Speed swap allocation */ uchar* top; /* Top of swap map */
1991/0724		Rendez r; /* Pager kproc idle sleep */
1995/0319		Rendez pause;
1993/0501		ulong highwater; /* Pager start threshold */ ulong headroom; /* Space pager frees under highwater */
1991/0705		}swapalloc; struct Image { Ref;
1999/1022		Chan *c; /* channel to text file */
1993/0501		Qid qid; /* Qid for page cache coherence */
1991/0428		Qid mqid;
1991/0705		Chan *mchan; ushort type; /* Device type of owning channel */
1992/0824		Segment *s; /* TEXT segment for image if running */
1991/0705		Image *hash; /* Qid hash chains */ Image *next; /* Free list */
1994/0817		int notext; /* no file associated */
1991/0428		};
1991/0705		struct Pte
1991/0428		{
1992/0131		Page *pages[PTEPERTAB]; /* Page map for this chunk of pte */ Page **first; /* First used entry */ Page **last; /* Last used entry */ Pte *next; /* Free list */
1991/0428		};
1991/0705		/* Segment types */
1992/0625		enum { SG_TYPE = 07, /* Mask type of segment */ SG_TEXT = 00, SG_DATA = 01, SG_BSS = 02, SG_STACK = 03, SG_SHARED = 04, SG_PHYSICAL = 05, SG_SHDATA = 06,
1997/0516		SG_MAP = 07,
1992/0307
1994/0106		SG_RONLY = 0040, /* Segment is read only */ SG_CEXEC = 0100, /* Detach at exec */
1992/0625		};
1991/0705		#define PG_ONSWAP 1 #define onswap(s) (((ulong)s)&PG_ONSWAP)
1992/0805		#define pagedout(s) (((ulong)s)==0 || onswap(s)) #define swapaddr(s) (((ulong)s)&~PG_ONSWAP)
1991/0705		#define SEGMAXSIZE (SEGMAPSIZE*PTEMAPMEM)
1993/0210		struct Physseg { ulong attr; /* Segment attributes */ char *name; /* Attach name */ ulong pa; /* Physical address */ ulong size; /* Maximum segment size in pages */ Page *(*pgalloc)(Segment*, ulong); /* Allocation if we need it */ void (*pgfree)(Page*); };
1991/0705		struct Segment { Ref; QLock lk;
1993/0210		ushort steal; /* Page stealer lock */ ushort type; /* segment type */ ulong base; /* virtual base */ ulong top; /* virtual top */ ulong size; /* size in pages */ ulong fstart; /* start address in file for demand load */ ulong flen; /* length of segment in file */
1993/0501		int flushme; /* maintain icache for this segment */
1993/0210		Image *image; /* text in file attached to this segment */ Physseg *pseg;
1996/0303		ulong* profile; /* Tick profile area */
1998/0916		Pte **map; int mapsize; Pte *ssegmap[SSEGMAPSIZE];
1991/0705		};
1992/0824		enum { RENDHASH = 32, /* Hash to lookup rendezvous tags */ MNTHASH = 32, /* Hash to walk mount table */
1993/0501		NFD = 100, /* per process file descriptors */
1992/1209		PGHLOG = 9, PGHSIZE = 1<<PGHLOG, /* Page hash for image lookup */
1992/0824		};
1991/0806		#define REND(p,s) ((p)->rendhash[(s)%RENDHASH])
1991/1011		#define MOUNTH(p,s) ((p)->mnthash[(s)->qid.path%MNTHASH])
1991/0806
1991/0428		struct Pgrp { Ref; /* also used as a lock when mounting */
2000/0322		int noattach;
1991/0428		ulong pgrpid; QLock debug; /* single access via devproc.c */
1993/0501		RWlock ns; /* Namespace n read/one write lock */ QLock nsh;
1991/1011		Mhead *mnthash[MNTHASH];
1994/0812		}; struct Rgrp { Ref;
1991/0806		Proc *rendhash[RENDHASH]; /* Rendezvous tag hash */
1991/0705		}; struct Egrp { Ref;
1992/0623		QLock; Evalue *entries;
1999/0122		ulong path; /* qid.path of next Evalue to be allocated */ ulong vers; /* of Egrp */
1991/0428		};
1992/0623		struct Evalue { char *name; char *value; int len; Evalue *link;
1999/0122		Qid qid;
1992/0623		};
1991/0705		struct Fgrp { Ref;
1997/0603		Chan **fd; int nfd; /* number allocated */
1991/0705		int maxfd; /* highest fd in use */
1997/0603		}; enum { DELTAFD = 20 /* incremental increase in Fgrp.fd's */
1991/0705		}; struct Palloc { Lock;
1992/0619		ulong p0, p1; /* base of pages in bank 0/1 */ ulong np0, np1; /* number of pages in bank 0/1 */
1991/0724		Page *head; /* most recently used */ Page *tail; /* least recently used */
1993/1120		ulong freecount; /* how many pages on free list now */
1991/0724		ulong user; /* how many user pages */
1991/0705		Page *hash[PGHSIZE]; Lock hashlock;
1993/1120		Rendez r; /* Sleep for free mem */ QLock pwait; /* Queue of procs waiting for memory */
1993/0806		ulong cmembase; /* Key memory */
1992/0824		ulong cmemtop;
1991/0705		};
1991/0926		struct Waitq { Waitmsg w; Waitq *next; };
1991/0807		enum {
1992/0501		RFNAMEG = (1<<0), RFENVG = (1<<1), RFFDG = (1<<2), RFNOTEG = (1<<3), RFPROC = (1<<4), RFMEM = (1<<5), RFNOWAIT = (1<<6), RFCNAMEG = (1<<10), RFCENVG = (1<<11),
1994/0812		RFCFDG = (1<<12), RFREND = (1<<13),
2000/0322		RFNOMNT = (1<<14),
1991/0807		};
1991/0428		/*
1991/0605		* process memory segments - NSEG always last !
1991/0428		*/
1991/0605		enum {
1993/0915		SSEG, TSEG, DSEG, BSEG, ESEG, LSEG, SEG1, SEG2, SEG3, SEG4, NSEG
1991/0605		};
1991/0428		enum {
1992/0625		Dead = 0, /* Process states */
1991/0428		Moribund, Ready, Scheding, Running, Queueing,
1998/0806		QueueingR,
1998/0325		QueueingW,
1991/0428		Wakeme, Broken,
1991/0705		Stopped,
1991/0806		Rendezvous,
1991/0428
1992/0625		Proc_stopme = 1, /* devproc requests */ Proc_exitme, Proc_traceme,
1995/0215		Proc_exitbig,
1991/0705
1992/0625		TUser = 0, /* Proc.time */
1991/0428		TSys, TReal, TCUser, TCSys, TCReal,
1993/0501		NERR = 15, NNOTE = 5,
1993/1201
1995/0110		Nrq = 20, /* number of scheduler priority levels */
1998/0606		PriLock = 0, /* priority for processes waiting on a lock */
1995/0110		PriNormal = 10, /* base priority for normal processes */ PriKproc = 13, /* base priority for kernel processes */ PriRoot = 13, /* base priority for root processes */
1991/0428		}; struct Proc {
1993/0501		Label sched; /* known to l.s */ char *kstack; /* known to l.s */ Mach *mach; /* machine running this proc */
1991/0428		char text[NAMELEN];
1991/1105		char user[NAMELEN];
1993/0501		Proc *rnext; /* next process in run queue */ Proc *qnext; /* next process on queue for a QLock */ QLock *qlock; /* addrof qlock being queued for DEBUG */
1991/0428		int state;
1993/0501		char *psstate; /* What /proc/#/status reports */
1991/0705		Segment *seg[NSEG];
1999/0108		QLock seglock; /* locked whenever seg[] changes */
1991/0428		ulong pid;
1993/0501		ulong noteid; /* Equivalent of note group */
1991/0926
1993/0501		Lock exl; /* Lock count and waitq */ Waitq *waitq; /* Exited processes wait children */ int nchild; /* Number of living children */ int nwait; /* Number of uncollected wait records */
1993/0309		QLock qwaitr;
1993/0501		Rendez waitr; /* Place to hang out in wait */
1991/0428		Proc *parent;
1991/0705
1993/0501		Pgrp *pgrp; /* Process group for namespace */ Egrp *egrp; /* Environment group */ Fgrp *fgrp; /* File descriptor group */
1994/0812		Rgrp *rgrp; /* Rendez group */
1991/0705
1991/0428		ulong parentpid;
1993/0501		ulong time[6]; /* User, Sys, Real; child U, S, R */
1991/0428		short insyscall; int fpstate;
1991/1109
1993/0501		QLock debug; /* to access debugging elements of User */ Proc *pdbg; /* the debugging process */ ulong procmode; /* proc device file mode */ int hang; /* hang at next exec for debug */ int procctl; /* Control for /proc debugging */ ulong pc; /* DEBUG only */
1991/1109
1996/1016		Lock rlock; /* sync sleep/wakeup with postnote */
1993/0501		Rendez *r; /* rendezvous point slept on */ Rendez sleep; /* place for syssleep/debug */ int notepending; /* note issued but not acted on */ int kp; /* true if a kernel process */ Proc *palarm; /* Next alarm time */ ulong alarm; /* Time of call */
1993/0806		int newtlb; /* Pager has changed my pte's, I must flush */
1991/0806
1998/0512		ulong rendtag; /* Tag for rendezvous */
1993/0501		ulong rendval; /* Value for rendezvous */ Proc *rendhash; /* Hash list for tag values */
1992/0602		ulong twhen; Rendez *trend; Proc *tlink;
1992/0617		int (*tfn)(void*);
1993/0501		void (*kpfun)(void*); void *kparg;
1992/0602
1993/0501		FPsave fpsave; /* address of this is known by db */ int scallnr; /* sys call number - known by db */ Sargs s; /* address of this is known by db */ int nerrlab; Label errlab[NERR]; char error[ERRLEN]; char elem[NAMELEN]; /* last name element from namec */ Chan *slash; Chan *dot; Note note[NNOTE]; short nnote; short notified; /* sysnoted is due */ Note lastnote; int (*notify)(void*, char*);
1998/0605
1998/0606		int lockwait; /* waiting for lock to be released */
1993/0501
1995/0110		Mach *wired; Mach *mp; /* machine this process last ran on */ ulong priority; /* priority level */ ulong basepri; /* base priority level */ ulong rt; /* # ticks used since last blocked */ ulong art; /* avg # ticks used since last blocked */ ulong movetime; /* last time process switched processors */ ulong readytime; /* time process went ready */
1998/0516		int preempted; /* true if this process hasn't finished the interrupt * that last preempted it */
1999/0110		ulong qpc; /* pc calling last blocking qlock */
1993/1204
1993/0501		void *ureg; /* User registers for notes */ void *dbgreg; /* User registers for devproc */
1993/1013		Notsave;
1993/1201
1991/0504		/*
1992/0824		* machine specific MMU
1991/0504		*/
1991/0507		PMMU;
1993/1204		};
1992/0824		enum { PRINTSIZE = 256,
1992/0826		MAXCRYPT = 127,
1992/0824		NUMSIZE = 12, /* size of formatted number */ MB = (1024*1024),
1997/0417		READSTR = 1000, /* temporary buffer size for device reads */
1992/0824		};
1991/0428		extern Conf conf;
1992/0625		extern char* conffile; extern int cpuserver;
1997/0327		extern Dev* devtab[];
1991/1109		extern char eve[];
1993/0330		extern char hostdomain[];
1992/0902		extern uchar initcode[];
1992/0625		extern FPsave initfp;
1997/0327		extern Queue* kbdq;
1992/0625		extern Ref noteidalloc;
1991/1112		extern int nrdy;
1993/0501		extern Palloc palloc;
1993/0601		extern Queue *printq;
1992/0625		extern char* statename[]; extern Image swapimage;
1992/0321		extern char sysname[NAMELEN];
1993/0501		extern Pthash syspt;
1992/0602		extern Talarm talarm;
1991/0428
1992/0824		enum { CHDIR = 0x80000000L, CHAPPEND = 0x40000000L, CHEXCL = 0x20000000L,
1993/0323		CHMOUNT = 0x10000000L,
1992/0824		};
1992/0318		/* * auth messages */
1992/0625		enum {
1992/0318		FScchal = 1,
1992/0321		FSschal, FSok,
1992/0318		FSctick,
1992/0321		FSstick, FSerr,
1992/0318		RXschal = 0, RXstick = 1,
1993/0501		AUTHLEN = 8,
1994/0221		};
1992/1021		enum {
1996/0303		LRESPROF = 3,
1999/0316		}; /* * action log */ struct Log { Lock; int opens; char* buf; char *end; char *rptr; int len;
2000/1018		int nlog; int minread;
1999/0316		int logmask; /* mask of things to debug */ QLock readq; Rendez readr; }; struct Logflag { char* name; int mask; }; struct Cmdbuf {
1999/0731		char buf[256];
1999/0316		char *f[16]; int nf;
1996/0303		};
1994/0814
1994/0407		extern int nsyscall;
1998/0811
1999/1230		#define DEVDOTDOT -1
1998/0811		#pragma varargck argpos print 1 #pragma varargck argpos snprint 3 #pragma varargck argpos sprint 2 #pragma varargck argpos fprint 2 #pragma varargck type "lld" vlong #pragma varargck type "llx" vlong #pragma varargck type "lld" uvlong #pragma varargck type "llx" uvlong #pragma varargck type "lx" void* #pragma varargck type "ld" long #pragma varargck type "lx" long #pragma varargck type "ld" ulong #pragma varargck type "lx" ulong #pragma varargck type "d" int #pragma varargck type "x" int #pragma varargck type "c" int #pragma varargck type "C" int #pragma varargck type "d" uint #pragma varargck type "x" uint #pragma varargck type "c" uint #pragma varargck type "C" uint #pragma varargck type "f" double #pragma varargck type "e" double #pragma varargck type "g" double #pragma varargck type "s" char* #pragma varargck type "S" Rune* #pragma varargck type "r" void #pragma varargck type "%" void #pragma varargck type "I" uchar* #pragma varargck type "V" uchar* #pragma varargck type "E" uchar* #pragma varargck type "M" uchar*
1999/0517		#pragma varargck type "p" void*