plan 9 kernel history: overview | file list | diff list

1993/0501/port/portdat.h (diff list | history)

1993/0407/sys/src/9/port/portdat.h:2,7 – 1993/0501/sys/src/9/port/portdat.h:2,8 (short | long | prev | next)
Convert to Brazil XXX.
Add Crypt, Mntrpc, Mntwalk, Path, Pthash.
Comment edits. Format edits.
In Chan: add link, path, xmnt, mid.
Remove ScsiExtread (XXX).
Add NS* enums.
In Mount: add flag, spec.
Add PG_DATINVALID.
Add Segment.lock (XXX).
Add NERR, NNOTE.
In Proc: add kstack, remove qlock, hasspin, add kpfun, kparg, fpsave, scallnr, s, nerrlab, errlab, error, elem, slash, dot, note, nnote, notified, lastnote, notify, ureg, dbgreg, svstatus, svr1.
Add second int cpuserver.
Add palloc.
Add syspt.
Add AUTHLEN (XXX).
rsc Fri Mar 4 12:44:25 2005
1991/0428    
typedef struct Block	Block; 
typedef struct Blist	Blist; 
typedef struct Chan	Chan;
1993/0501    
typedef struct Crypt	Crypt;
1991/0428    
typedef struct Dev	Dev; 
typedef struct Dirtab	Dirtab;
1991/0705    
typedef struct Egrp	Egrp;
1993/0407/sys/src/9/port/portdat.h:13,18 – 1993/0501/sys/src/9/port/portdat.h:14,21
1991/0607    
typedef struct KIOQ	KIOQ;
1991/0428    
typedef struct List	List; 
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;
1991/1115    
typedef struct Netinf	Netinf;
1993/0407/sys/src/9/port/portdat.h:20,25 – 1993/0501/sys/src/9/port/portdat.h:23,29
1991/1106    
typedef struct Network	Network;
1991/0428    
typedef struct Note	Note; 
typedef struct Page	Page;
1993/0501    
typedef struct Path	Path;
1991/0705    
typedef struct Palloc	Palloc;
1992/0128    
typedef struct Pgrps	Pgrps;
1991/0428    
typedef struct Pgrp	Pgrp;
1993/0407/sys/src/9/port/portdat.h:26,31 – 1993/0501/sys/src/9/port/portdat.h:30,36
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 Qinfo	Qinfo; 
typedef struct QLock	QLock; 
typedef struct Queue	Queue;
1993/0407/sys/src/9/port/portdat.h:33,43 – 1993/0501/sys/src/9/port/portdat.h:38,48
1991/0428    
typedef struct Rendez	Rendez;
1991/1011    
typedef struct RWlock	RWlock;
1992/0625    
typedef struct Sargs	Sargs;
1993/0330    
typedef struct Session	Session;
1992/0808    
typedef struct Scsi	Scsi; 
typedef struct Scsibuf	Scsibuf; 
typedef struct Scsidata	Scsidata;
1991/0705    
typedef struct Segment	Segment;
1993/0501    
typedef struct Session	Session;
1991/0428    
typedef struct Stream	Stream;
1992/0602    
typedef struct Talarm	Talarm;
1991/0926    
typedef struct Waitq	Waitq;
1993/0407/sys/src/9/port/portdat.h:128,134 – 1993/0501/sys/src/9/port/portdat.h:133,139
1991/0428    
}; 
 
/* 
 * Access types in namec
1993/0501    
 * Access types in namec & channel flags
1991/0428    
 */ 
enum 
{
1993/0407/sys/src/9/port/portdat.h:137,178 – 1993/0501/sys/src/9/port/portdat.h:142,192
1991/0724    
	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 */ 
	CRECOV	= 0x0040,		/* requires recovery */
1991/0428    
}; 
 
/* 
 *  Chan.flags 
 */
1991/0724    
#define	COPEN	1			/* for i/o */
1991/1011    
#define	CMSG	2			/* is the message channel for a mount */ 
#define	CCREATE	4			/* permits creation if c->mnt */
1991/0724    
#define	CCEXEC	8			/* close on exec */ 
#define	CFREE	16			/* not in use */
1992/0811    
#define	CRCLOSE	32			/* remove on close */
1993/0501    
struct Path 
{ 
	Ref; 
	Path	*hash; 
	Path	*parent; 
	Pthash	*pthash; 
	char	elem[NAMELEN]; 
};
1991/0428    
 
struct Chan 
{ 
	Ref; 
	union{ 
		Chan	*next;		/* allocation */ 
		ulong	offset;		/* in file */ 
	};
1993/0501    
	Chan	*next;			/* allocation */ 
	Chan	*link; 
	ulong	offset;			/* in file */
1991/0428    
	ushort	type; 
	ushort	dev; 
	ushort	mode;			/* read/write */ 
	ushort	flag; 
	Qid	qid; 
	Mount	*mnt;			/* mount point that derived Chan */ 
	ulong	mountid; 
	int	fid;			/* for devmnt */
1992/0318    
	Stream	*stream;		/* for stream channels */
1993/0501    
	Path	*path; 
	Mount	*mnt;			/* mount point that derived Chan */ 
	Mount	*xmnt;			/* Last mount point crossed */ 
	ulong	mountid;
1991/0428    
	union { 
		void	*aux; 
		Qid	pgrpid;		/* for #p/notepg */
1992/0620    
		Mnt	*mntptr;	/* for devmnt */
1993/0501    
		ulong	mid;		/* for ns in devproc */
1991/0428    
	}; 
	Chan	*mchan;			/* channel to mounted server */ 
	Qid	mqid;			/* qid of root of mount point */
1993/0330    
	Session	*session;
1993/0501    
	Session *session;
1991/0428    
}; 
 
struct Dev
1993/0407/sys/src/9/port/portdat.h:231,238 – 1993/0501/sys/src/9/port/portdat.h:245,250
1992/0808    
	ScsiGetcap	= 0x25, 
	ScsiRead	= 0x08, 
	ScsiWrite	= 0x0a,
1993/0407    
	ScsiExtread	= 0x28, 
	ScsiExtwrite	= 0x2a,
1992/0808    
1992/0824    
	/* data direction */
1992/0808    
	ScsiIn		= 1,
1993/0407/sys/src/9/port/portdat.h:298,309 – 1993/0501/sys/src/9/port/portdat.h:310,345
1991/0607    
	int	count; 
};
1992/0307    
1993/0501    
enum 
{ 
	NSMAX	=	1000, 
	NSLOG	=	7, 
	NSCACHE	=	(1<<NSLOG), 
}; 
 
struct Pthash 
{ 
	QLock; 
	int	npt; 
	Path	*root; 
	Path	*hash[NSCACHE]; 
}; 
 
struct Mntwalk 
{ 
	ulong	id; 
	Mhead	*mh; 
	Mount	*cm; 
};
1991/0428    
struct Mount 
{ 
	ulong	mountid; 
	Mount	*next;
1991/1011    
	Mhead	*head; 
	Chan	*to;			/* channel replacing underlying channel */
1993/0501    
	Chan	*to;			/* channel replacing channel */ 
	int	flag; 
	char	spec[NAMELEN];
1991/0428    
};
1991/1011    
struct Mhead
1993/0407/sys/src/9/port/portdat.h:313,318 – 1993/0501/sys/src/9/port/portdat.h:349,372
1991/1011    
	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 */ 
	Mntrpc	*recwait;	/* List of rpc's with recovery pending */ 
	ulong	id;		/* Multiplexor id for channel check */ 
	Mnt	*list;		/* Free list */ 
	char	mux;		/* Set if the device does the multiplexing */ 
	char	recov;		/* Run recovery if channel is lost */ 
	char	recprog;	/* Recovery in progress */ 
	int	blocksize;	/* read/write block size */ 
	ushort	flushtag;	/* Tag to send flush on */ 
	ushort	flushbase;	/* Base tag of flush window for this buffer */ 
	Pthash	tree;		/* Path names from this mount point */ 
};
1992/0307    
enum 
{
1991/0428    
	NUser,				/* note provided externally */
1993/0407/sys/src/9/port/portdat.h:328,338 – 1993/0501/sys/src/9/port/portdat.h:382,393
1991/0428    
1992/0625    
enum 
{ 
	PG_NOFLUSH	= 0,		/* Fields for cache control of pages */ 
	PG_TXTFLUSH	= 1, 
	PG_DATFLUSH	= 2, 
	PG_MOD		= 0x01,		/* Simulated modified and referenced bits */ 
	PG_REF		= 0x02,
1993/0501    
	PG_TXTFLUSH	= 1<<1,		/* flush icache */ 
	PG_DATFLUSH	= 1<<2,		/* flush both i & d caches */ 
	PG_DATINVALID	= 1<<3,		/* invalidate d cache */ 
 
	PG_MOD		= 0x01,		/* software modified bit */ 
	PG_REF		= 0x02,		/* software referenced bit */
1992/0625    
};
1991/0428    
1991/0705    
struct Page
1993/0407/sys/src/9/port/portdat.h:342,347 – 1993/0501/sys/src/9/port/portdat.h:397,403
1991/0705    
	ulong	va;			/* Virtual address for user */ 
	ulong	daddr;			/* Disc address on swap */ 
	ushort	ref;			/* Reference count */
1993/0501    
	char	lock;			/* Software lock */
1991/0705    
	char	modref;			/* Simulated modify/reference bits */ 
	char	cachectl[MAXMACH];	/* Cache flushing control for putmmu */ 
	Image	*image;			/* Associated text or swap image */
1993/0407/sys/src/9/port/portdat.h:353,373 – 1993/0501/sys/src/9/port/portdat.h:409,429
1991/0705    
struct Swapalloc 
{
1991/0724    
	Lock;				/* Free map lock */ 
	int	free;			/* Number of currently free swap pages */
1993/0501    
	int	free;			/* currently free swap pages */
1992/0912    
	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 */
1992/0303    
	ulong	highwater;		/* Threshold beyond which we must page */
1992/0824    
	ulong	headroom;		/* Space pager keeps free under highwater */
1993/0501    
	ulong	highwater;		/* Pager start threshold */ 
	ulong	headroom;		/* Space pager frees under highwater */
1991/0705    
}swapalloc; 
 
struct Image 
{ 
	Ref; 
	Chan	*c;			/* Channel associated with running image */ 
	Qid 	qid;			/* Qid for page cache coherence checks */
1993/0501    
	Chan	*c;			/* channl to text file */ 
	Qid 	qid;			/* Qid for page cache coherence */
1991/0428    
	Qid	mqid;
1991/0705    
	Chan	*mchan; 
	ushort	type;			/* Device type of owning channel */
1993/0407/sys/src/9/port/portdat.h:428,437 – 1993/0501/sys/src/9/port/portdat.h:484,493
1993/0210    
	ulong	size;		/* size in pages */ 
	ulong	fstart;		/* start address in file for demand load */ 
	ulong	flen;		/* length of segment in file */ 
	int	flushme;	/* maintain consistent icache for this segment */
1993/0501    
	int	flushme;	/* maintain icache for this segment */
1993/0210    
	Image	*image;		/* text in file attached to this segment */ 
	Physseg *pseg;
1991/0705    
	Pte	*map[SEGMAPSIZE];	/* segment pte map */
1993/0501    
	Pte	*map[SEGMAPSIZE];
1991/0705    
};
1992/0824    
enum
1993/0407/sys/src/9/port/portdat.h:438,444 – 1993/0501/sys/src/9/port/portdat.h:494,500
1992/0824    
{ 
	RENDHASH =	32,		/* Hash to lookup rendezvous tags */ 
	MNTHASH	=	32,		/* Hash to walk mount table */ 
	NFD =		100,		/* Number of per process file descriptors */
1993/0501    
	NFD =		100,		/* per process file descriptors */
1992/1209    
	PGHLOG  =	9, 
	PGHSIZE	=	1<<PGHLOG,	/* Page hash for image lookup */
1992/0824    
};
1993/0407/sys/src/9/port/portdat.h:451,457 – 1993/0501/sys/src/9/port/portdat.h:507,514
1991/0705    
	Pgrp	*next;			/* free list */
1991/0428    
	ulong	pgrpid; 
	QLock	debug;			/* single access via devproc.c */
1991/1011    
	RWlock	ns;			/* Namespace many read/one write lock */
1993/0501    
	RWlock	ns;			/* Namespace n read/one write lock */ 
	QLock	nsh;
1991/1011    
	Mhead	*mnthash[MNTHASH];
1991/0806    
	Proc	*rendhash[RENDHASH];	/* Rendezvous tag hash */
1991/0705    
};
1993/0407/sys/src/9/port/portdat.h:549,615 – 1993/0501/sys/src/9/port/portdat.h:606,697
1991/0428    
	TCUser, 
	TCSys, 
	TCReal,
1993/0501    
 
	NERR = 15, 
	NNOTE = 5,
1991/0428    
}; 
 
struct Proc 
{ 
	Label	sched; 
	Mach	*mach;			/* machine running this 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];
1991/0428    
	Proc	*rnext;			/* next process in run queue */ 
	Proc	*qnext;			/* next process on queue for a QLock */ 
	QLock	*qlock;			/* address of qlock being queued for DEBUG */
1991/0830    
	ulong	qlockpc;		/* pc of last call to qlock */
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;
1992/0428    
	char	*psstate;		/* What /proc/#/status reports */
1992/0805    
	Page	*upage;			/* page from palloc */
1993/0501    
	char	*psstate;	/* What /proc/#/status reports */ 
	Page	*upage;		/* page from palloc */
1991/0705    
	Segment	*seg[NSEG];
1991/0428    
	ulong	pid;
1992/0428    
	ulong	noteid;			/* Equivalent of note group */
1993/0501    
	ulong	noteid;		/* Equivalent of note group */
1991/0926    
 
	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 */
1993/0501    
	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;
1991/0926    
	Rendez	waitr;			/* Place to hang out in wait */
1993/0501    
	Rendez	waitr;		/* Place to hang out in wait */
1991/0428    
	Proc	*parent;
1991/0705    
 
	Pgrp	*pgrp;			/* Process group for notes and namespace */ 
	Egrp 	*egrp;			/* Environment group */ 
	Fgrp	*fgrp;			/* File descriptor group */
1993/0501    
	Pgrp	*pgrp;		/* Process group for namespace */ 
	Egrp 	*egrp;		/* Environment group */ 
	Fgrp	*fgrp;		/* File descriptor group */
1991/0705    
1991/0428    
	ulong	parentpid; 
	ulong	time[6];		/* User, Sys, Real; child U, S, R */
1993/0501    
	ulong	time[6];	/* User, Sys, Real; child U, S, R */
1991/0428    
	short	insyscall; 
	int	fpstate;
1991/1109    
1991/1216    
	QLock	debug;			/* to access debugging elements of User */
1991/1110    
	Proc	*pdbg;			/* the debugging process */
1991/1109    
	ulong	procmode;		/* proc device file mode */
1991/1110    
	int	hang;			/* hang at next exec for debug */ 
	int	procctl;		/* Control for /proc debugging */ 
	ulong	pc;			/* DEBUG only */
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    
1991/0428    
	Rendez	*r;			/* rendezvous point slept on */
1992/0602    
	Rendez	sleep;			/* place for syssleep/debug */
1991/0727    
	int	notepending;		/* note issued but not acted on */
1991/0428    
	int	kp;			/* true if a kernel process */
1991/0513    
	Proc	*palarm;		/* Next alarm time */ 
	ulong	alarm;			/* Time of call */
1991/0705    
	int 	hasspin;		/* I hold a spin lock */ 
	int	newtlb;			/* Pager has touched my tables so I must flush */
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 */ 
	int	newtlb;		/* Pager has changed my pte's so I must flush */
1991/0806    
 
	ulong	rendtag;		/* Tag for rendezvous */  
	ulong	rendval;		/* Value for rendezvous */ 
	Proc	*rendhash;		/* Hash list for tag values */
1993/0501    
	ulong	rendtag;	/* Tag for rendezvous */  
	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*); 
 
	void	*ureg;		/* User registers for notes */ 
	void	*dbgreg;	/* User registers for devproc */ 
	ulong	svstatus; 
	ulong	svr1;
1991/0504    
	/*
1992/0824    
	 *  machine specific MMU
1991/0504    
	 */
1993/0407/sys/src/9/port/portdat.h:739,744 – 1993/0501/sys/src/9/port/portdat.h:821,827
1991/0428    
extern	Conf	conf;
1992/0625    
extern	char*	conffile; 
extern	int	cpuserver;
1993/0501    
extern	int	cpuserver;
1992/1217    
extern	Rune*	devchar;
1991/0428    
extern	Dev	devtab[];
1991/1109    
extern  char	eve[];
1993/0407/sys/src/9/port/portdat.h:750,762 – 1993/0501/sys/src/9/port/portdat.h:833,845
1992/0625    
extern  IOQ	mouseq; 
extern  Ref	noteidalloc;
1991/1112    
extern	int	nrdy;
1993/0501    
extern	Palloc	palloc;
1992/0625    
extern  IOQ	printq; 
extern	char*	statename[]; 
extern  Image	swapimage;
1992/0321    
extern	char	sysname[NAMELEN];
1993/0501    
extern	Pthash	syspt;
1992/0602    
extern	Talarm	talarm;
1992/0625    
extern	Palloc 	palloc;
1992/0725    
extern	int	cpuserver;
1991/0428    
1992/0824    
enum 
{
1993/0407/sys/src/9/port/portdat.h:780,785 – 1993/0501/sys/src/9/port/portdat.h:863,870
1992/0318    
 
	RXschal	= 0, 
	RXstick	= 1,
1993/0501    
 
	AUTHLEN	= 8,
1992/0318    
};
1992/1021    
 
/*


source code copyright © 1990-2005 Lucent Technologies; see license
Plan 9 distribution
comments to russ cox (rsc@swtch.com)