projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6bafdb92 C |
1 | /* text.h 4.4 81/03/09 */ |
| 2 | ||
| 3 | /* | |
| 4 | * Text structure. | |
| 5 | * One allocated per pure | |
| 6 | * procedure on swap device. | |
| 7 | * Manipulated by text.c | |
| 8 | */ | |
| 9 | #define NXDAD 12 /* param.h:MAXTSIZ / dmap.h:DMTEXT */ | |
| 10 | ||
| 11 | struct text | |
| 12 | { | |
| 13 | swblk_t x_daddr[NXDAD]; /* disk addresses of DMTEXT-page segments */ | |
| 14 | swblk_t x_ptdaddr; /* disk address of page table */ | |
| 15 | size_t x_size; /* size (clicks) */ | |
| 16 | struct proc *x_caddr; /* ptr to linked proc, if loaded */ | |
| 17 | struct inode *x_iptr; /* inode of prototype */ | |
| 18 | short x_rssize; | |
| 19 | short x_swrss; | |
| 20 | char x_count; /* reference count */ | |
| 21 | char x_ccount; /* number of loaded references */ | |
| 22 | char x_flag; /* traced, written flags */ | |
| 23 | char x_slptime; | |
| 24 | short x_poip; /* page out in progress count */ | |
| 25 | }; | |
| 26 | ||
| 27 | #ifdef KERNEL | |
| 28 | struct text *text, *textNTEXT; | |
| 29 | int ntext; | |
| 30 | #endif | |
| 31 | ||
| 32 | #define XTRC 01 /* Text may be written, exclusive use */ | |
| 33 | #define XWRIT 02 /* Text written into, must swap out */ | |
| 34 | #define XLOAD 04 /* Currently being read from file */ | |
| 35 | #define XLOCK 010 /* Being swapped in or out */ | |
| 36 | #define XWANT 020 /* Wanted for swapping */ | |
| 37 | #define XPAGI 040 /* Page in on demand from inode */ |