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

1991/1106/port/portdat.h (diff list | history)

1991/0428/sys/src/9/port/portdat.h:409,414 – 1991/0502/sys/src/9/port/portdat.h:409,415 (short | long)
Add Stream.forcedelim.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
	Queue	*procq;		/* write queue at process end */ 
	Queue	*devq;		/* read queue at device end */ 
	Block	*err;		/* error message from down stream */
1991/0502    
	int	forcedelim;	/* force a delimiter before the next message */
1991/0428    
}; 
 
/*
1991/0502/sys/src/9/port/portdat.h:347,354 – 1991/0504/sys/src/9/port/portdat.h:347,358 (short | long)
Change MMU goo to struct. Comment edit.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
	int	wokeup;			/* whether sleep was interrupted */ 
	ulong	pc;			/* DEBUG only */ 
	int	kp;			/* true if a kernel process */ 
	union { 
		int	pidonmach[MAXMACH];	/* !!Compatability with mips!! */
1991/0504    
	/* 
	 *  MMU goo.  which of the fillowing fields gets used depends on the 
	 *  processor. 
	 */ 
	struct { 
		int	pidonmach[MAXMACH];
1991/0428    
		MMU	*mmu; 
		int	nmmuseg;		/* number of segments active in mmu */ 
	};
1991/0504/sys/src/9/port/portdat.h:348,361 – 1991/0507/sys/src/9/port/portdat.h:348,356 (short | long)
Change MMU goo to PMMU.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
	ulong	pc;			/* DEBUG only */ 
	int	kp;			/* true if a kernel process */
1991/0504    
	/* 
	 *  MMU goo.  which of the fillowing fields gets used depends on the 
	 *  processor.
1991/0507    
	 *  machine specific MMU goo
1991/0504    
	 */ 
	struct { 
		int	pidonmach[MAXMACH];
1991/0428    
		MMU	*mmu; 
		int	nmmuseg;		/* number of segments active in mmu */ 
	};
1991/0507    
	PMMU;
1991/0428    
}; 
 
struct PTE
1991/0507/sys/src/9/port/portdat.h:1,4 – 1991/0513/sys/src/9/port/portdat.h:1,5 (short | long)
Add Alarms. In Proc, add palarm, alarm.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
typedef struct Alarm	Alarm;
1991/0513    
typedef struct Alarms	Alarms;
1991/0428    
typedef struct Block	Block; 
typedef struct Blist	Blist; 
typedef struct Chan	Chan;
1991/0507/sys/src/9/port/portdat.h:62,67 – 1991/0513/sys/src/9/port/portdat.h:63,74
1991/0428    
	void	*arg; 
};
1991/0513    
struct Alarms 
{ 
	QLock; 
	Proc	*head; 
};
1991/0428    
/* Block.flags */ 
#define S_DELIM 0x80 
#define S_CLASS 0x07
1991/0507/sys/src/9/port/portdat.h:347,352 – 1991/0513/sys/src/9/port/portdat.h:354,362
1991/0428    
	int	wokeup;			/* whether sleep was interrupted */ 
	ulong	pc;			/* DEBUG only */ 
	int	kp;			/* true if a kernel process */
1991/0513    
	Proc	*palarm;		/* Next alarm time */ 
	ulong	alarm;			/* Time of call */
1991/0504    
	/*
1991/0507    
	 *  machine specific MMU goo
1991/0504    
	 */
1991/0513/sys/src/9/port/portdat.h:273,278 – 1991/0514/sys/src/9/port/portdat.h:273,287 (short | long)
Add FP states.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
	Envp	*etab; 
};
1991/0514    
enum					/* Argument to forkpgrp call */ 
{ 
	FPall 	  = 0,			/* Concession to back portablility */ 
	FPnote 	  = 1, 
	FPnamespc = 2, 
	FPenv	  = 4, 
	FPclear	  = 8, 
};
1991/0428    
/* 
 *  process memory segments 
 */
1991/0514/sys/src/9/port/portdat.h:283,295 – 1991/0605/sys/src/9/port/portdat.h:283,294 (short | long)
Change segments to enum. Add LSEG, NSEG.
rsc Fri Mar 4 12:44:25 2005
1991/0514    
};
1991/0428    
/* 
 *  process memory segments
1991/0605    
 *  process memory segments - NSEG always last !
1991/0428    
 */ 
#define	SSEG	0 
#define	TSEG	1 
#define	DSEG	2 
#define	BSEG	3 
#define	ESEG	4	/* used by exec to build new stack */
1991/0605    
enum 
{ 
	SSEG, TSEG, DSEG, BSEG, ESEG, LSEG, NSEG 
};
1991/0428    
 
struct Seg 
{
1991/0605/sys/src/9/port/portdat.h:297,303 – 1991/0606/sys/src/9/port/portdat.h:297,304 (short | long)
Add Seg.endseg. Remove Proc.bssend.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
	ulong	minva;			/* va of 0th pte (not necessarily Seg->o->va) */ 
	ulong	maxva;			/* va of last pte */ 
	PTE	*mod;			/* list of modified pte's */ 
	ulong	pad[3]; /**/
1991/0606    
	ulong	endseg;			/* segments end */ 
	ulong	pad[2]; /**/
1991/0428    
}; 
 
/*
1991/0605/sys/src/9/port/portdat.h:343,349 – 1991/0606/sys/src/9/port/portdat.h:344,349
1991/0428    
	int	state; 
	Page	*upage;			/* BUG: should be unlinked from page list */ 
	Seg	seg[NSEG]; 
	ulong	bssend;			/* initial top of bss seg */ 
	ulong	pid; 
	int	nchild; 
	QLock	wait;			/* exiting children to be waited for */
1991/0606/sys/src/9/port/portdat.h:9,14 – 1991/0607/sys/src/9/port/portdat.h:9,16 (short | long)
Add IOQ, KIOQ, OISMEM, OSHARED. In Orig, add freepg, allocpg. Remove Seg.pad.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
typedef struct Envp	Envp; 
typedef struct Envval	Envval; 
typedef struct Etherpkt	Etherpkt;
1991/0607    
typedef struct IOQ	IOQ; 
typedef struct KIOQ	KIOQ;
1991/0428    
typedef struct List	List; 
typedef struct Mount	Mount; 
typedef struct Mtab	Mtab;
1991/0606/sys/src/9/port/portdat.h:199,204 – 1991/0607/sys/src/9/port/portdat.h:201,237
1991/0428    
#define	ETHERMAXTU	1514	/* maximum transmit size */ 
#define ETHERHDRSIZE	14	/* size of an ethernet header */
1991/0607    
/* 
 *  character based IO (mouse, keyboard, console screen) 
 */ 
#define NQ	4096 
struct IOQ 
{ 
	Lock; 
	uchar	buf[NQ]; 
	uchar	*in; 
	uchar	*out; 
	int	state; 
	Rendez	r; 
	union{ 
		void	(*puts)(IOQ*, void*, int);	/* output */ 
		int	(*putc)(IOQ*, int);		/* input */ 
	}; 
	void	*ptr; 
}; 
struct KIOQ 
{ 
	QLock; 
	IOQ; 
	int	repeat; 
	int	c; 
	int	count; 
}; 
extern IOQ	lineq; 
extern IOQ	printq; 
extern IOQ	mouseq; 
extern KIOQ	kbdq;
1991/0428    
struct Mount 
{ 
	Ref;				/* also used as a lock when playing lists */
1991/0606/sys/src/9/port/portdat.h:229,234 – 1991/0607/sys/src/9/port/portdat.h:262,269
1991/0428    
#define	OWRPERM	0x01	/* write permission */ 
#define	OPURE	0x02	/* original data mustn't be written */ 
#define	OCACHED	0x04	/* cached; don't discard on exit */
1991/0607    
#define OISMEM	0x08	/* origin contains real memory */ 
#define OSHARED	0x10	/* origin does not copy on ref/wr */
1991/0428    
 
struct Orig 
{
1991/0606/sys/src/9/port/portdat.h:247,252 – 1991/0607/sys/src/9/port/portdat.h:282,289
1991/0428    
	Qid	mqid; 
	ulong	minca;			/* base of region in chan */ 
	ulong	maxca;			/* end of region in chan */
1991/0607    
	void	(*freepg)(Page*, int);	/* how to free pages for this origin */ 
	Page	(*allocpg)(int, Orig*, ulong);
1991/0428    
}; 
 
struct Page
1991/0606/sys/src/9/port/portdat.h:298,304 – 1991/0607/sys/src/9/port/portdat.h:335,340
1991/0428    
	ulong	maxva;			/* va of last pte */ 
	PTE	*mod;			/* list of modified pte's */
1991/0606    
	ulong	endseg;			/* segments end */ 
	ulong	pad[2]; /**/
1991/0428    
}; 
 
/*
1991/0607/sys/src/9/port/portdat.h:400,405 – 1991/0614/sys/src/9/port/portdat.h:400,406 (short | long)
Add Proc.hasspin. Add MAXSYSARG. (Note authfd!)
rsc Fri Mar 4 12:44:25 2005
1991/0428    
	int	kp;			/* true if a kernel process */
1991/0513    
	Proc	*palarm;		/* Next alarm time */ 
	ulong	alarm;			/* Time of call */
1991/0614    
	int	hasspin;
1991/0513    
1991/0504    
	/*
1991/0507    
	 *  machine specific MMU goo
1991/0607/sys/src/9/port/portdat.h:491,496 – 1991/0614/sys/src/9/port/portdat.h:492,498
1991/0428    
	Streambhi= 32,		/* block count high water mark */ 
};
1991/0614    
#define MAXSYSARG	6	/* for mount(fd, mpt, flag, arg, srv, authfd) */
1991/0428    
#define	PRINTSIZE	256 
#define	NUMSIZE	12		/* size of formatted number */
1991/0614/sys/src/9/port/portdat.h:5,14 – 1991/0705/sys/src/9/port/portdat.h:5,17 (short | long)
Add Egrp, Fgrp, Image, Palloc, Pte, Segment, Swapalloc. Remove PTE, Seg, Orig.
Add Stopped state and devproc ctl requests.
In Proc: change seg to pointer list, add egrp, fgrp, newtlb, procctl.
Add LSEG1, LSEG2.
Foramt edits.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
typedef struct Chan	Chan; 
typedef struct Dev	Dev; 
typedef struct Dirtab	Dirtab;
1991/0705    
typedef struct Egrp	Egrp;
1991/0428    
typedef struct Env	Env; 
typedef struct Envp	Envp; 
typedef struct Envval	Envval; 
typedef struct Etherpkt	Etherpkt;
1991/0705    
typedef struct Fgrp	Fgrp; 
typedef struct Image	Image;
1991/0607    
typedef struct IOQ	IOQ; 
typedef struct KIOQ	KIOQ;
1991/0428    
typedef struct List	List;
1991/0614/sys/src/9/port/portdat.h:15,31 – 1991/0705/sys/src/9/port/portdat.h:18,34
1991/0428    
typedef struct Mount	Mount; 
typedef struct Mtab	Mtab; 
typedef struct Note	Note; 
typedef struct Orig	Orig; 
typedef struct PTE	PTE; 
typedef struct Page	Page;
1991/0705    
typedef struct Palloc	Palloc;
1991/0428    
typedef struct Pgrp	Pgrp; 
typedef struct Proc	Proc;
1991/0705    
typedef struct Pte	Pte;
1991/0428    
typedef struct Qinfo	Qinfo; 
typedef struct QLock	QLock; 
typedef struct Queue	Queue; 
typedef struct Ref	Ref; 
typedef struct Rendez	Rendez; 
typedef struct Seg	Seg;
1991/0705    
typedef struct Segment	Segment;
1991/0428    
typedef struct Stream	Stream; 
 
typedef int Devgen(Chan*, Dirtab*, int, int, Dir*);
1991/0614/sys/src/9/port/portdat.h:177,183 – 1991/0705/sys/src/9/port/portdat.h:180,186
1991/0428    
	Lock; 
	Envval	*val; 
	char	name[NAMELEN]; 
	Env	*next;			/* in chain of Envs for a pgrp */
1991/0705    
	Env	*next;			/* in chain of Envs for a egrp */
1991/0428    
	int	pgref;			/* # pgrps pointing here */ 
};
1991/0614/sys/src/9/port/portdat.h:259,315 – 1991/0705/sys/src/9/port/portdat.h:262,407
1991/0428    
	int	flag;			/* whether system posted it */ 
}; 
 
#define	OWRPERM	0x01	/* write permission */ 
#define	OPURE	0x02	/* original data mustn't be written */ 
#define	OCACHED	0x04	/* cached; don't discard on exit */
1991/0607    
#define OISMEM	0x08	/* origin contains real memory */ 
#define OSHARED	0x10	/* origin does not copy on ref/wr */
1991/0705    
/* Fields for cache control of pages */ 
#define	PG_NOFLUSH	0 
#define PG_TXTFLUSH	1 
#define PG_DATFLUSH	2 
/* Simulated modified and referenced bits */ 
#define PG_MOD		0x01 
#define PG_REF		0x02
1991/0428    
 
struct Orig
1991/0705    
struct Page
1991/0428    
{ 
	Lock; 
	Orig	*next;			/* for allocation */ 
	ushort	nproc;			/* processes using it */ 
	ushort	npage;			/* sum of refs of pages in it */ 
	ushort	flag; 
	ulong	va;			/* va of 0th pte */ 
	ulong	npte;			/* #pte's in list */ 
	PTE	*pte; 
	Chan	*chan;			/* channel deriving segment (if open) */ 
	ushort	type;			/* of channel (which could be non-open) */ 
	Qid	qid; 
	Chan	*mchan;
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	lock;			/* Software lock */ 
	char	modref;			/* Simulated modify/reference bits */ 
	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 
{ 
	Lock;			/* Free map lock */ 
	int	free;		/* Number of currently free swap pages */ 
	char	*swmap;		/* Base of swap map in memory */ 
	char	*alloc;		/* Round robin allocator */ 
	char	*top;		/* Top of swap map */ 
	Rendez	r;		/* Pager kproc idle sleep */ 
}swapalloc; 
 
struct Image 
{ 
	Ref; 
	Chan	*c;			/* Channel associated with running image */ 
	Qid 	qid;			/* Qid for page cache coherence checks */
1991/0428    
	Qid	mqid; 
	ulong	minca;			/* base of region in chan */ 
	ulong	maxca;			/* end of region in chan */
1991/0607    
	void	(*freepg)(Page*, int);	/* how to free pages for this origin */ 
	Page	(*allocpg)(int, Orig*, ulong);
1991/0705    
	Chan	*mchan; 
	ushort	type;			/* Device type of owning channel */ 
	Segment *s;			/* TEXT segment for image if running, may be null */ 
	Image	*hash;			/* Qid hash chains */ 
	Image	*next;			/* Free list */
1991/0428    
}; 
 
struct Page
1991/0705    
struct Pte
1991/0428    
{ 
	Orig	*o;			/* origin of segment owning page */ 
	ulong	va;			/* virtual address */ 
	ulong	pa;			/* physical address */ 
	ushort	ref; 
	Page	*next; 
	Page	*prev;
1991/0705    
	union { 
		Pte	*next;			/* Free list */ 
		Page	*pages[PTEPERTAB];	/* Page map for this chunk of pte */ 
	};
1991/0428    
};
1991/0705    
/* Segment types */ 
#define SG_TYPE		007		/* Mask type of segment */ 
#define SG_TEXT		000 
#define SG_DATA		001 
#define SG_BSS		002 
#define SG_STACK	003 
#define SG_SHARED	004 
#define SG_PHYSICAL	005 
/* Segment flags */ 
#define SG_RONLY	040		/* Segment is read only */ 
 
#define HIGHWATER	((conf.npage*5)/100) 
#define MAXHEADROOM	HIGHWATER*2	/* Silly but OK for debug */ 
#define PG_ONSWAP	1 
#define pagedout(s)	(((ulong)s)==0 || (((ulong)s)&PG_ONSWAP)) 
#define swapaddr(s)	(((ulong)s)&~PG_ONSWAP) 
#define onswap(s)	(((ulong)s)&PG_ONSWAP) 
 
#define SEGMAXSIZE	(SEGMAPSIZE*PTEMAPMEM) 
 
struct Segment 
{ 
	Ref; 
	QLock	lk; 
	ushort	steal;			/* Page stealer lock */ 
	Segment	*next;			/* free list pointers */ 
	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 */ 
	Image	*image;			/* image in file system attached to this segment */ 
	Page	*(*pgalloc)(ulong addr);/* SG_PHYSICAL page allocator */ 
	void	(*pgfree)(Page *);	/* SG_PHYSICAL page free */ 
	Pte	*map[SEGMAPSIZE];	/* segment pte map */ 
};
1991/0428    
struct Pgrp 
{ 
	Ref;				/* also used as a lock when mounting */ 
	Pgrp	*next;
1991/0705    
	Pgrp	*next;			/* free list */
1991/0428    
	int	index;			/* index in pgrp table */ 
	ulong	pgrpid; 
	char	user[NAMELEN]; 
	int	nmtab;			/* highest active mount table entry, +1 */ 
	int	nenv;			/* highest active env table entry, +1 */ 
	QLock	debug;			/* single access via devproc.c */ 
	Mtab	*mtab;
1991/0705    
}; 
 
struct Egrp 
{ 
	Ref; 
	Egrp	*next; 
	int	nenv;			/* highest active env table entry, +1 */
1991/0428    
	Envp	*etab; 
};
1991/0705    
#define	NFD	100 
struct Fgrp 
{ 
	Ref; 
	Fgrp	*next; 
	Chan	*fd[NFD]; 
	int	maxfd;			/* highest fd in use */ 
}; 
 
#define PGHSIZE	512 
struct Palloc 
{ 
	Lock; 
	ulong	addr; 
	int	active; 
	Page	*page;		/* base of Page structures, indexed by phys page number */ 
	ulong	minppn;		/* index of first usable page */ 
	Page	*head;		/* most recently used */ 
	Page	*tail;		/* least recently used */ 
	ulong	freecount;	/* how many pages on free list now */ 
	ulong	user;		/* how many user pages */ 
	Page	*hash[PGHSIZE]; 
	Lock	hashlock; 
	Rendez	r;		/* Sleep for free mem */ 
	QLock	pwait;		/* Queue of procs waiting for memory */ 
	int	wanted;		/* Do the wakeup at free */ 
};
1991/0514    
enum					/* Argument to forkpgrp call */ 
{ 
	FPall 	  = 0,			/* Concession to back portablility */
1991/0614/sys/src/9/port/portdat.h:324,342 – 1991/0705/sys/src/9/port/portdat.h:416,424
1991/0428    
 */
1991/0605    
enum 
{ 
	SSEG, TSEG, DSEG, BSEG, ESEG, LSEG, NSEG
1991/0705    
	SSEG, TSEG, DSEG, BSEG, ESEG, LSEG, SEG1, SEG2, NSEG
1991/0605    
};
1991/0428    
 
struct Seg 
{ 
	Proc	*proc;			/* process owning this segment */ 
	Orig	*o;			/* root list of pte's */ 
	ulong	minva;			/* va of 0th pte (not necessarily Seg->o->va) */ 
	ulong	maxva;			/* va of last pte */ 
	PTE	*mod;			/* list of modified pte's */
1991/0606    
	ulong	endseg;			/* segments end */
1991/0428    
}; 
                 
/* 
 * Process states 
 */
1991/0614/sys/src/9/port/portdat.h:354,362 – 1991/0705/sys/src/9/port/portdat.h:436,454
1991/0428    
	Inwait, 
	Wakeme, 
	Broken,
1991/0705    
	Stopped,
1991/0428    
}; 
 
/*
1991/0705    
 * devproc requests 
 */ 
enum 
{ 
	Proc_stopme = 1, 
	Proc_exitme = 2, 
}; 
 
/*
1991/0428    
 * Proc.time 
 */ 
enum
1991/0614/sys/src/9/port/portdat.h:379,385 – 1991/0705/sys/src/9/port/portdat.h:471,477
1991/0428    
	QLock	*qlock;			/* address of qlock being queued for DEBUG */ 
	int	state; 
	Page	*upage;			/* BUG: should be unlinked from page list */ 
	Seg	seg[NSEG];
1991/0705    
	Segment	*seg[NSEG];
1991/0428    
	ulong	pid; 
	int	nchild; 
	QLock	wait;			/* exiting children to be waited for */
1991/0614/sys/src/9/port/portdat.h:386,392 – 1991/0705/sys/src/9/port/portdat.h:478,488
1991/0428    
	Waitmsg	waitmsg;		/* this is large but must be addressable */ 
	Proc	*child; 
	Proc	*parent; 
	Pgrp	*pgrp;
1991/0705    
 
	Pgrp	*pgrp;			/* Process group for notes and namespace */ 
	Egrp 	*egrp;			/* Environment group */ 
	Fgrp	*fgrp;			/* File descriptor group */
1991/0428    
	ulong	parentpid; 
	ulong	time[6];		/* User, Sys, Real; child U, S, R */ 
	short	exiting;
1991/0614/sys/src/9/port/portdat.h:400,407 – 1991/0705/sys/src/9/port/portdat.h:496,504
1991/0428    
	int	kp;			/* true if a kernel process */
1991/0513    
	Proc	*palarm;		/* Next alarm time */ 
	ulong	alarm;			/* Time of call */
1991/0614    
	int	hasspin;
1991/0513    
                 
1991/0705    
	int 	hasspin;		/* I hold a spin lock */ 
	int	newtlb;			/* Pager has touched my tables so I must flush */ 
	int	procctl;		/* Control for /proc debugging */
1991/0504    
	/*
1991/0507    
	 *  machine specific MMU goo
1991/0504    
	 */
1991/0614/sys/src/9/port/portdat.h:408,421 – 1991/0705/sys/src/9/port/portdat.h:505,510
1991/0507    
	PMMU;
1991/0428    
}; 
 
struct PTE 
{ 
	Proc	*proc;			/* process owning this PTE (0 in Orig) */ 
	PTE	*nextmod;		/* next at this va */ 
	PTE	*nextva;		/* next in this proc at higher va */ 
	Page	*page; 
}; 
                 
/* 
 *  operations available to a queue 
 */
1991/0614/sys/src/9/port/portdat.h:504,513 – 1991/0705/sys/src/9/port/portdat.h:593,604
1991/0428    
extern	char	user[NAMELEN]; 
extern	char	*errstrtab[]; 
extern	char	*statename[];
1991/0705    
extern	Palloc 	palloc; 
extern  Image	swapimage;
1991/0428    
 
#define	CHDIR	0x80000000L 
#define	CHAPPEND 0x40000000L 
#define	CHEXCL	0x20000000L
1991/0705    
#define	CHDIR		0x80000000L 
#define	CHAPPEND 	0x40000000L 
#define	CHEXCL		0x20000000L
1991/0428    
1991/0705/sys/src/9/port/portdat.h:348,353 – 1991/0706/sys/src/9/port/portdat.h:348,354 (short | long)
Add Segment.flushme.
rsc Fri Mar 4 12:44:25 2005
1991/0705    
	ulong	size;			/* size in pages */ 
	ulong	fstart;			/* start address in file for demand load */ 
	ulong	flen;			/* length of segment in file */
1991/0706    
	int	flushme;		/* maintain consistent icache for this segment */
1991/0705    
	Image	*image;			/* image in file system attached to this segment */ 
	Page	*(*pgalloc)(ulong addr);/* SG_PHYSICAL page allocator */ 
	void	(*pgfree)(Page *);	/* SG_PHYSICAL page free */
1991/0706/sys/src/9/port/portdat.h:63,69 – 1991/0724/sys/src/9/port/portdat.h:63,69 (short | long)
Format edit, remove blank lines.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
	List; 
	Lock; 
	int	busy; 
	long	dt;		/* may underflow in clock(); must be signed */
1991/0724    
	long	dt;			/* may underflow in clock(); must be signed */
1991/0428    
	void	(*f)(void*); 
	void	*arg; 
};
1991/0706/sys/src/9/port/portdat.h:86,95 – 1991/0724/sys/src/9/port/portdat.h:86,95
1991/0428    
struct Block 
{ 
	Block	*next; 
	uchar	*rptr;		/* first unconsumed byte */ 
	uchar	*wptr;		/* first empty byte */ 
	uchar	*lim;		/* 1 past the end of the buffer */ 
	uchar	*base;		/* start of the buffer */
1991/0724    
	uchar	*rptr;			/* first unconsumed byte */ 
	uchar	*wptr;			/* first empty byte */ 
	uchar	*lim;			/* 1 past the end of the buffer */ 
	uchar	*base;			/* start of the buffer */
1991/0428    
	uchar	flags; 
	uchar	type; 
};
1991/0706/sys/src/9/port/portdat.h:96,105 – 1991/0724/sys/src/9/port/portdat.h:96,105
1991/0428    
 
struct Blist { 
	Lock; 
	Block	*first;		/* first data block */ 
	Block	*last;		/* last data block */ 
	long	len;		/* length of list in bytes */ 
	int	nb;		/* number of blocks in list */
1991/0724    
	Block	*first;			/* first data block */ 
	Block	*last;			/* last data block */ 
	long	len;			/* length of list in bytes */ 
	int	nb;			/* number of blocks in list */
1991/0428    
}; 
 
/*
1991/0706/sys/src/9/port/portdat.h:107,127 – 1991/0724/sys/src/9/port/portdat.h:107,127
1991/0428    
 */ 
enum 
{ 
	Aaccess,	/* as in access, stat */ 
	Atodir,		/* as in chdir */ 
	Aopen,		/* for i/o */ 
	Amount,		/* to be mounted upon */ 
	Acreate,	/* file is to be created */
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 */
1991/0428    
}; 
 
/* 
 *  Chan.flags 
 */ 
#define	COPEN	1	/* for i/o */ 
#define	CMOUNT	2	/* is result of a mount/bind */ 
#define	CCREATE	4	/* permits creation if CMOUNT */ 
#define	CCEXEC	8	/* close on exec */ 
#define	CFREE	16	/* not in use */
1991/0724    
#define	COPEN	1			/* for i/o */ 
#define	CMOUNT	2			/* is result of a mount/bind */ 
#define	CCREATE	4			/* permits creation if CMOUNT */ 
#define	CCEXEC	8			/* close on exec */ 
#define	CFREE	16			/* not in use */
1991/0428    
 
struct Chan 
{
1991/0706/sys/src/9/port/portdat.h:200,208 – 1991/0724/sys/src/9/port/portdat.h:200,208
1991/0428    
	uchar data[1500]; 
	uchar crc[4]; 
}; 
#define	ETHERMINTU	60	/* minimum transmit size */ 
#define	ETHERMAXTU	1514	/* maximum transmit size */ 
#define ETHERHDRSIZE	14	/* size of an ethernet header */
1991/0724    
#define	ETHERMINTU	60		/* minimum transmit size */ 
#define	ETHERMAXTU	1514		/* maximum transmit size */ 
#define ETHERHDRSIZE	14		/* size of an ethernet header */
1991/0428    
1991/0607    
/* 
 *  character based IO (mouse, keyboard, console screen)
1991/0706/sys/src/9/port/portdat.h:287,298 – 1991/0724/sys/src/9/port/portdat.h:287,298
1991/0705    
 
struct Swapalloc 
{ 
	Lock;			/* Free map lock */ 
	int	free;		/* Number of currently free swap pages */ 
	char	*swmap;		/* Base of swap map in memory */ 
	char	*alloc;		/* Round robin allocator */ 
	char	*top;		/* Top of swap map */ 
	Rendez	r;		/* Pager kproc idle sleep */
1991/0724    
	Lock;				/* Free map lock */ 
	int	free;			/* Number of currently free swap pages */ 
	char	*swmap;			/* Base of swap map in memory */ 
	char	*alloc;			/* Round robin allocator */ 
	char	*top;			/* Top of swap map */ 
	Rendez	r;			/* Pager kproc idle sleep */
1991/0705    
}swapalloc; 
 
struct Image
1991/0706/sys/src/9/port/portdat.h:390,406 – 1991/0724/sys/src/9/port/portdat.h:390,406
1991/0705    
	Lock; 
	ulong	addr; 
	int	active; 
	Page	*page;		/* base of Page structures, indexed by phys page number */ 
	ulong	minppn;		/* index of first usable page */ 
	Page	*head;		/* most recently used */ 
	Page	*tail;		/* least recently used */ 
	ulong	freecount;	/* how many pages on free list now */ 
	ulong	user;		/* how many user pages */
1991/0724    
	Page	*page;			/* base of Page structures */ 
	ulong	minppn;			/* index of first usable page */ 
	Page	*head;			/* most recently used */ 
	Page	*tail;			/* least recently used */ 
	ulong	freecount;		/* how many pages on free list now */ 
	ulong	user;			/* how many user pages */
1991/0705    
	Page	*hash[PGHSIZE]; 
	Lock	hashlock; 
	Rendez	r;		/* Sleep for free mem */ 
	QLock	pwait;		/* Queue of procs waiting for memory */ 
	int	wanted;		/* Do the wakeup at free */
1991/0724    
	Rendez	r;			/* Sleep for free mem */ 
	QLock	pwait;			/* Queue of procs waiting for memory */ 
	int	wanted;			/* Do the wakeup at free */
1991/0705    
};
1991/0514    
enum					/* Argument to forkpgrp call */
1991/0706/sys/src/9/port/portdat.h:523,559 – 1991/0724/sys/src/9/port/portdat.h:523,559
1991/0428    
/* 
 *  Queue.flag 
 */ 
#define QHUNGUP	0x1	/* flag bit meaning the stream has been hung up */
1991/0724    
#define QHUNGUP	0x1			/* flag bit meaning the stream has been hung up */
1991/0428    
#define QINUSE	0x2 
#define QHIWAT	0x4	/* queue has gone past the high water mark */
1991/0724    
#define QHIWAT	0x4			/* queue has gone past the high water mark */
1991/0428    
#define QDEBUG	0x8 
 
struct Queue { 
	Blist; 
	int	flag; 
	Qinfo	*info;		/* line discipline definition */ 
	Queue	*other;		/* opposite direction, same line discipline */ 
	Queue	*next;		/* next queue in the stream */
1991/0724    
	Qinfo	*info;			/* line discipline definition */ 
	Queue	*other;			/* opposite direction, same line discipline */ 
	Queue	*next;			/* next queue in the stream */
1991/0428    
	void	(*put)(Queue*, Block*); 
	QLock	rlock;		/* mutex for processes sleeping at r */ 
	Rendez	r;		/* standard place to wait for flow control */ 
	Rendez	*rp;		/* where flow control wakeups go to */ 
	void	*ptr;		/* private info for the queue */
1991/0724    
	QLock	rlock;			/* mutex for processes sleeping at r */ 
	Rendez	r;			/* standard place to wait for flow control */ 
	Rendez	*rp;			/* where flow control wakeups go to */ 
	void	*ptr;			/* private info for the queue */
1991/0428    
}; 
 
struct Stream { 
	QLock;			/* structure lock */ 
	short	inuse;		/* number of processes in stream */ 
	short	opens;		/* number of processes with stream open */ 
	ushort	hread;		/* number of reads after hangup */ 
	ushort	type;		/* correlation with Chan */ 
	ushort	dev;		/* ... */ 
	ushort	id;		/* ... */ 
	QLock	rdlock;		/* read lock */ 
	Queue	*procq;		/* write queue at process end */ 
	Queue	*devq;		/* read queue at device end */ 
	Block	*err;		/* error message from down stream */
1991/0502    
	int	forcedelim;	/* force a delimiter before the next message */
1991/0724    
	QLock;				/* structure lock */ 
	short	inuse;			/* number of processes in stream */ 
	short	opens;			/* number of processes with stream open */ 
	ushort	hread;			/* number of reads after hangup */ 
	ushort	type;			/* correlation with Chan */ 
	ushort	dev;			/* ... */ 
	ushort	id;			/* ... */ 
	QLock	rdlock;			/* read lock */ 
	Queue	*procq;			/* write queue at process end */ 
	Queue	*devq;			/* read queue at device end */ 
	Block	*err;			/* error message from down stream */ 
	int	forcedelim;		/* force a delimiter before the next message */
1991/0428    
}; 
 
/*
1991/0706/sys/src/9/port/portdat.h:578,590 – 1991/0724/sys/src/9/port/portdat.h:578,590
1991/0428    
	Sdataqid = Shighqid, 
	Sctlqid = Sdataqid-1, 
	Slowqid = Sctlqid, 
	Streamhi= (9*1024),	/* byte count high water mark */ 
	Streambhi= 32,		/* block count high water mark */
1991/0724    
	Streamhi= (9*1024),		/* byte count high water mark */ 
	Streambhi= 32,			/* block count high water mark */
1991/0428    
};
1991/0614    
#define MAXSYSARG	6	/* for mount(fd, mpt, flag, arg, srv, authfd) */
1991/0724    
#define MAXSYSARG	6		/* for mount(fd, mpt, flag, arg, srv, authfd) */
1991/0428    
#define	PRINTSIZE	256 
#define	NUMSIZE	12		/* size of formatted number */
1991/0724    
#define	NUMSIZE		12		/* size of formatted number */
1991/0428    
 
extern	FPsave	initfp; 
extern	Conf	conf;
1991/0706/sys/src/9/port/portdat.h:600,605 – 1991/0724/sys/src/9/port/portdat.h:600,602
1991/0705    
#define	CHDIR		0x80000000L 
#define	CHAPPEND 	0x40000000L 
#define	CHEXCL		0x20000000L
1991/0428    
                 
                 
                 
1991/0724/sys/src/9/port/portdat.h:70,76 – 1991/0727/sys/src/9/port/portdat.h:70,76 (short | long)
Change Alarms QLock to Lock. In Proc: add notepending, remove wokeup.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
1991/0513    
struct Alarms 
{ 
	QLock;
1991/0727    
	Lock;
1991/0513    
	Proc	*head; 
};
1991/0724/sys/src/9/port/portdat.h:492,498 – 1991/0727/sys/src/9/port/portdat.h:492,498
1991/0428    
	Lock	debug;			/* to access debugging elements of User */ 
	Rendez	*r;			/* rendezvous point slept on */ 
	Rendez	sleep;			/* place for tsleep and syssleep */ 
	int	wokeup;			/* whether sleep was interrupted */
1991/0727    
	int	notepending;		/* note issued but not acted on */
1991/0428    
	ulong	pc;			/* DEBUG only */ 
	int	kp;			/* true if a kernel process */
1991/0513    
	Proc	*palarm;		/* Next alarm time */
1991/0727/sys/src/9/port/portdat.h:582,588 – 1991/0731/sys/src/9/port/portdat.h:582,588 (short | long)
Comment edit.
rsc Fri Mar 4 12:44:25 2005
1991/0724    
	Streambhi= 32,			/* block count high water mark */
1991/0428    
};
1991/0724    
#define MAXSYSARG	6		/* for mount(fd, mpt, flag, arg, srv, authfd) */
1991/0731    
#define MAXSYSARG	6		/* for mount(fd, mpt, flag, arg, srv) */
1991/0428    
#define	PRINTSIZE	256
1991/0724    
#define	NUMSIZE		12		/* size of formatted number */
1991/0428    
1991/0731/sys/src/9/port/portdat.h:388,397 – 1991/0802/sys/src/9/port/portdat.h:388,396 (short | long)
In Palloc: replace addr with addr0, addr1 (for gnot?). Remove page, minppn.
rsc Fri Mar 4 12:44:25 2005
1991/0705    
struct Palloc 
{ 
	Lock; 
	ulong	addr;
1991/0802    
	ulong	addr0;			/* next available ialloc addr in bank 0 */ 
	ulong	addr1;			/* next available ialloc addr in bank 1 */
1991/0705    
	int	active;
1991/0724    
	Page	*page;			/* base of Page structures */ 
	ulong	minppn;			/* index of first usable page */ 
	Page	*head;			/* most recently used */ 
	Page	*tail;			/* least recently used */ 
	ulong	freecount;		/* how many pages on free list now */
1991/0802/sys/src/9/port/portdat.h:355,360 – 1991/0806/sys/src/9/port/portdat.h:355,363 (short | long)
Add rendezvous hash table to Pgrp, Rendezvous state, rendezvous info in Proc.
rsc Fri Mar 4 12:44:25 2005
1991/0705    
	Pte	*map[SEGMAPSIZE];	/* segment pte map */ 
};
1991/0806    
#define RENDHASH	32 
#define REND(p,s)	((p)->rendhash[(s)%RENDHASH])
1991/0428    
struct Pgrp 
{ 
	Ref;				/* also used as a lock when mounting */
1991/0802/sys/src/9/port/portdat.h:365,370 – 1991/0806/sys/src/9/port/portdat.h:368,374
1991/0428    
	int	nmtab;			/* highest active mount table entry, +1 */ 
	QLock	debug;			/* single access via devproc.c */ 
	Mtab	*mtab;
1991/0806    
	Proc	*rendhash[RENDHASH];	/* Rendezvous tag hash */
1991/0705    
}; 
 
struct Egrp
1991/0802/sys/src/9/port/portdat.h:437,442 – 1991/0806/sys/src/9/port/portdat.h:441,447
1991/0428    
	Wakeme, 
	Broken,
1991/0705    
	Stopped,
1991/0806    
	Rendezvous,
1991/0428    
}; 
 
/*
1991/0802/sys/src/9/port/portdat.h:499,504 – 1991/0806/sys/src/9/port/portdat.h:504,513
1991/0705    
	int 	hasspin;		/* I hold a spin lock */ 
	int	newtlb;			/* Pager has touched my tables so I must flush */ 
	int	procctl;		/* Control for /proc debugging */
1991/0806    
 
	ulong	rendtag;		/* Tag for rendezvous */  
	ulong	rendval;		/* Value for rendezvous */ 
	Proc	*rendhash;		/* Hash list for tag values */
1991/0504    
	/*
1991/0507    
	 *  machine specific MMU goo
1991/0504    
	 */
1991/0806/sys/src/9/port/portdat.h:415,420 – 1991/0807/sys/src/9/port/portdat.h:415,427 (short | long)
Add Forkpg, Forkeg, Forkfd.
rsc Fri Mar 4 12:44:25 2005
1991/0514    
	FPclear	  = 8, 
};
1991/0807    
enum 
{ 
	Forkpg	  = 1, 
	Forkeg	  = 2, 
	Forkfd	  = 4, 
};
1991/0428    
/*
1991/0605    
 *  process memory segments - NSEG always last !
1991/0428    
 */
1991/0807/sys/src/9/port/portdat.h:569,574 – 1991/0809/sys/src/9/port/portdat.h:569,575 (short | long)
Add Stream.flushmsg.
rsc Fri Mar 4 12:44:25 2005
1991/0724    
	Queue	*devq;			/* read queue at device end */ 
	Block	*err;			/* error message from down stream */ 
	int	forcedelim;		/* force a delimiter before the next message */
1991/0809    
	int	flushmsg;		/* flush up till the next delimiter */
1991/0428    
}; 
 
/*
1991/0809/sys/src/9/port/portdat.h:220,225 – 1991/0810/sys/src/9/port/portdat.h:220,229 (short | long)
Add IOQ.gets, IOQ.getc.
rsc Fri Mar 4 12:44:25 2005
1991/0607    
		void	(*puts)(IOQ*, void*, int);	/* output */ 
		int	(*putc)(IOQ*, int);		/* input */ 
	};
1991/0810    
	union{ 
		int	(*gets)(IOQ*, void*, int);	/* input */ 
		int	(*getc)(IOQ*);			/* output */ 
	};
1991/0607    
	void	*ptr; 
}; 
struct KIOQ
1991/0810/sys/src/9/port/portdat.h:485,490 – 1991/0830/sys/src/9/port/portdat.h:485,491 (short | long)
Add Proc.qlockpc.
rsc Fri Mar 4 12:44:25 2005
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 */
1991/0428    
	int	state; 
	Page	*upage;			/* BUG: should be unlinked from page list */
1991/0705    
	Segment	*seg[NSEG];
1991/0830/sys/src/9/port/portdat.h:30,35 – 1991/0926/sys/src/9/port/portdat.h:30,36 (short | long)
Add Waitq and use in Proc.
Remove unused process states, Proc.exiting, Stream.forcedelim.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
typedef struct Rendez	Rendez;
1991/0705    
typedef struct Segment	Segment;
1991/0428    
typedef struct Stream	Stream;
1991/0926    
typedef struct Waitq	Waitq;
1991/0428    
 
typedef int Devgen(Chan*, Dirtab*, int, int, Dir*);
1991/0830/sys/src/9/port/portdat.h:410,415 – 1991/0926/sys/src/9/port/portdat.h:411,422
1991/0724    
	int	wanted;			/* Do the wakeup at free */
1991/0705    
};
1991/0926    
struct Waitq 
{ 
	Waitmsg	w; 
	Waitq	*next; 
};
1991/0514    
enum					/* Argument to forkpgrp call */ 
{ 
	FPall 	  = 0,			/* Concession to back portablility */
1991/0830/sys/src/9/port/portdat.h:441,454 – 1991/0926/sys/src/9/port/portdat.h:448,457
1991/0428    
{ 
	Dead = 0, 
	Moribund, 
	Zombie, 
	Ready, 
	Scheding, 
	Running, 
	Queueing, 
	MMUing, 
	Exiting, 
	Inwait, 
	Wakeme, 
	Broken,
1991/0705    
	Stopped,
1991/0830/sys/src/9/port/portdat.h:487,499 – 1991/0926/sys/src/9/port/portdat.h:490,505
1991/0428    
	QLock	*qlock;			/* address of qlock being queued for DEBUG */
1991/0830    
	ulong	qlockpc;		/* pc of last call to qlock */
1991/0428    
	int	state;
1991/0926    
	char	*psstate;		/* What /proc/???/status reports */
1991/0428    
	Page	*upage;			/* BUG: should be unlinked from page list */
1991/0705    
	Segment	*seg[NSEG];
1991/0428    
	ulong	pid; 
	int	nchild; 
	QLock	wait;			/* exiting children to be waited for */ 
	Waitmsg	waitmsg;		/* this is large but must be addressable */ 
	Proc	*child;
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 */ 
	Rendez	waitr;			/* Place to hang out in wait */
1991/0428    
	Proc	*parent;
1991/0705    
 
	Pgrp	*pgrp;			/* Process group for notes and namespace */
1991/0830/sys/src/9/port/portdat.h:502,508 – 1991/0926/sys/src/9/port/portdat.h:508,513
1991/0705    
1991/0428    
	ulong	parentpid; 
	ulong	time[6];		/* User, Sys, Real; child U, S, R */ 
	short	exiting; 
	short	insyscall; 
	int	fpstate; 
	Lock	debug;			/* to access debugging elements of User */
1991/0830/sys/src/9/port/portdat.h:573,579 – 1991/0926/sys/src/9/port/portdat.h:578,583
1991/0724    
	Queue	*procq;			/* write queue at process end */ 
	Queue	*devq;			/* read queue at device end */ 
	Block	*err;			/* error message from down stream */ 
	int	forcedelim;		/* force a delimiter before the next message */
1991/0809    
	int	flushmsg;		/* flush up till the next delimiter */
1991/0428    
};
1991/0926/sys/src/9/port/portdat.h:53,62 – 1991/1002/sys/src/9/port/portdat.h:53,62 (short | long)
In QLock: add locked, remove queue.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
 
struct QLock 
{
1991/1002    
	Lock	use;			/* to use object */
1991/0428    
	Proc	*head;			/* next process waiting for object */ 
	Proc	*tail;			/* last process waiting for object */ 
	Lock	use;			/* to use object */ 
	Lock	queue;			/* to access list */
1991/1002    
	int	locked;			/* flag */
1991/0428    
}; 
 
struct Alarm
1991/1002/sys/src/9/port/portdat.h:16,22 – 1991/1011/sys/src/9/port/portdat.h:16,22 (short | long)
Rename Mtab to Mhead. Add Proc.mnthash, RWlock.
Rename CMOUNT to CMSG. Comment edit.
In Mount: remove Ref, term, rename c to to, add head.
In Mhead: rename c to from, mnt to mount, add hash.
Add MNTHASH, Proc.ns, Proc.mnthash.
rsc Fri Mar 4 12:44:25 2005
1991/0607    
typedef struct KIOQ	KIOQ;
1991/0428    
typedef struct List	List; 
typedef struct Mount	Mount; 
typedef struct Mtab	Mtab;
1991/1011    
typedef struct Mhead	Mhead;
1991/0428    
typedef struct Note	Note; 
typedef struct Page	Page;
1991/0705    
typedef struct Palloc	Palloc;
1991/1002/sys/src/9/port/portdat.h:28,33 – 1991/1011/sys/src/9/port/portdat.h:28,34
1991/0428    
typedef struct Queue	Queue; 
typedef struct Ref	Ref; 
typedef struct Rendez	Rendez;
1991/1011    
typedef struct RWlock	RWlock;
1991/0705    
typedef struct Segment	Segment;
1991/0428    
typedef struct Stream	Stream;
1991/0926    
typedef struct Waitq	Waitq;
1991/1002/sys/src/9/port/portdat.h:59,64 – 1991/1011/sys/src/9/port/portdat.h:60,73
1991/1002    
	int	locked;			/* flag */
1991/0428    
};
1991/1011    
struct RWlock 
{ 
	Lock;				/* Lock modify lock */ 
	QLock	x;			/* Mutual exclusion lock */ 
	QLock	k;			/* Lock for waiting writers held for readers */ 
	int	readers;		/* Count of readers in lock */ 
};
1991/0428    
struct Alarm 
{ 
	List;
1991/1002/sys/src/9/port/portdat.h:119,126 – 1991/1011/sys/src/9/port/portdat.h:128,135
1991/0428    
 *  Chan.flags 
 */
1991/0724    
#define	COPEN	1			/* for i/o */ 
#define	CMOUNT	2			/* is result of a mount/bind */ 
#define	CCREATE	4			/* permits creation if CMOUNT */
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 */
1991/0428    
1991/1002/sys/src/9/port/portdat.h:242,258 – 1991/1011/sys/src/9/port/portdat.h:251,267
1991/0607    
1991/0428    
struct Mount 
{ 
	Ref;				/* also used as a lock when playing lists */ 
	short	term;			/* terminates list */ 
	ulong	mountid; 
	Mount	*next; 
	Chan	*c;			/* channel replacing underlying channel */
1991/1011    
	Mhead	*head; 
	Chan	*to;			/* channel replacing underlying channel */
1991/0428    
}; 
 
struct Mtab
1991/1011    
struct Mhead
1991/0428    
{ 
	Chan	*c;			/* channel mounted upon */ 
	Mount	*mnt;			/* what's mounted upon it */
1991/1011    
	Chan	*from;			/* channel mounted upon */ 
	Mount	*mount;			/* what's mounted upon it */ 
	Mhead	*hash;			/* Hash chain */
1991/0428    
}; 
 
enum{
1991/1002/sys/src/9/port/portdat.h:362,367 – 1991/1011/sys/src/9/port/portdat.h:371,378
1991/0705    
1991/0806    
#define RENDHASH	32 
#define REND(p,s)	((p)->rendhash[(s)%RENDHASH])
1991/1011    
#define MNTHASH		32 
#define MOUNTH(p,s)	((p)->mnthash[(s)->qid.path%MNTHASH])
1991/0806    
1991/0428    
struct Pgrp 
{
1991/1002/sys/src/9/port/portdat.h:370,378 – 1991/1011/sys/src/9/port/portdat.h:381,389
1991/0428    
	int	index;			/* index in pgrp table */ 
	ulong	pgrpid; 
	char	user[NAMELEN]; 
	int	nmtab;			/* highest active mount table entry, +1 */ 
	QLock	debug;			/* single access via devproc.c */ 
	Mtab	*mtab;
1991/1011    
	RWlock	ns;			/* Namespace many read/one write lock */ 
	Mhead	*mnthash[MNTHASH];
1991/0806    
	Proc	*rendhash[RENDHASH];	/* Rendezvous tag hash */
1991/0705    
};
1991/1011/sys/src/9/port/portdat.h:7,13 – 1991/1018/sys/src/9/port/portdat.h:7,12 (short | long)
Remove Envp. Simplify Env. Add QLock Egrp.ev for all of etab. (Bug fix? proper locking)
rsc Fri Mar 4 12:44:25 2005
1991/0428    
typedef struct Dirtab	Dirtab;
1991/0705    
typedef struct Egrp	Egrp;
1991/0428    
typedef struct Env	Env; 
typedef struct Envp	Envp; 
typedef struct Envval	Envval; 
typedef struct Etherpkt	Etherpkt;
1991/0705    
typedef struct Fgrp	Fgrp;
1991/1011/sys/src/9/port/portdat.h:187,205 – 1991/1018/sys/src/9/port/portdat.h:186,195
1991/0428    
 
struct Env 
{ 
	Lock;
1991/1018    
	Envval	*name;
1991/0428    
	Envval	*val; 
	char	name[NAMELEN];
1991/0705    
	Env	*next;			/* in chain of Envs for a egrp */
1991/0428    
	int	pgref;			/* # pgrps pointing here */ 
}; 
 
struct Envp 
{ 
	Env	*env; 
	int	chref;			/* # chans from pgrp pointing here */ 
}; 
                 
/* 
 *  Ethernet packet buffers. 
 */
1991/1011/sys/src/9/port/portdat.h:392,398 – 1991/1018/sys/src/9/port/portdat.h:382,389
1991/0705    
	Ref; 
	Egrp	*next; 
	int	nenv;			/* highest active env table entry, +1 */
1991/0428    
	Envp	*etab;
1991/1018    
	QLock	ev;			/* for all of etab */ 
	Env	*etab;
1991/0428    
};
1991/0705    
#define	NFD	100
1991/1018/sys/src/9/port/portdat.h:95,100 – 1991/10302/sys/src/9/port/portdat.h:95,101 (short | long)
Add Block.list.
rsc Fri Mar 4 12:44:25 2005
1991/0428    
struct Block 
{ 
	Block	*next;
1991/10302    
	Block	*list;			/* chain of block lists */
1991/0724    
	uchar	*rptr;			/* first unconsumed byte */ 
	uchar	*wptr;			/* first empty byte */ 
	uchar	*lim;			/* 1 past the end of the buffer */
Too many diffs (26 > 25). Stopping.


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