1991/0607/port/portdat.h (diff list | history)

1991/0606/sys/src/9/port/portdat.h:9,14 – 1991/0607/sys/src/9/port/portdat.h:9,16 (short | long | prev | next)
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		}; /*