projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 95f51977 C |
1 | /* |
| 2 | * Copyright (c) 1982, 1986 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| ca67e7b4 | 6 | * @(#)text.h 7.2 (Berkeley) 10/13/86 |
| 95f51977 | 7 | */ |
| 59703a43 C |
8 | |
| 9 | /* | |
| 10 | * Text structure. | |
| 11 | * One allocated per pure | |
| 12 | * procedure on swap device. | |
| 13 | * Manipulated by text.c | |
| 14 | */ | |
| 95f51977 | 15 | #define NXDAD 12 /* param.h:MAXTSIZ / vmparam.h:DMTEXT */ |
| 59703a43 C |
16 | |
| 17 | struct text | |
| 18 | { | |
| 95f51977 C |
19 | struct text *x_forw; /* forward link in free list */ |
| 20 | struct text **x_back; /* backward link in free list */ | |
| 21 | swblk_t x_daddr[NXDAD]; /* disk addresses of dmtext-page segments */ | |
| 59703a43 C |
22 | swblk_t x_ptdaddr; /* disk address of page table */ |
| 23 | size_t x_size; /* size (clicks) */ | |
| 24 | struct proc *x_caddr; /* ptr to linked proc, if loaded */ | |
| 25 | struct inode *x_iptr; /* inode of prototype */ | |
| 26 | short x_rssize; | |
| 27 | short x_swrss; | |
| 95f51977 C |
28 | short x_count; /* reference count */ |
| 29 | short x_ccount; /* number of loaded references */ | |
| 59703a43 C |
30 | char x_flag; /* traced, written flags */ |
| 31 | char x_slptime; | |
| 32 | short x_poip; /* page out in progress count */ | |
| ca67e7b4 C |
33 | #if defined(tahoe) |
| 34 | short x_ckey; /* code cache key */ | |
| 35 | #endif | |
| 59703a43 C |
36 | }; |
| 37 | ||
| 38 | #ifdef KERNEL | |
| 39 | struct text *text, *textNTEXT; | |
| 40 | int ntext; | |
| 41 | #endif | |
| 42 | ||
| 95f51977 C |
43 | #define XTRC 0x01 /* Text may be written, exclusive use */ |
| 44 | #define XWRIT 0x02 /* Text written into, must swap out */ | |
| 45 | #define XLOAD 0x04 /* Currently being read from file */ | |
| 46 | #define XLOCK 0x08 /* Being swapped in or out */ | |
| 47 | #define XWANT 0x10 /* Wanted for swapping */ | |
| 48 | #define XPAGI 0x20 /* Page in on demand from inode */ | |
| 49 | #define XUNUSED 0x40 /* unused since swapped out for cache */ | |
| 50 | ||
| 51 | /* | |
| 52 | * Text table statistics | |
| 53 | */ | |
| 54 | struct xstats { | |
| 55 | u_long alloc; /* calls to xalloc */ | |
| 56 | u_long alloc_inuse; /* found in use/sticky */ | |
| 57 | u_long alloc_cachehit; /* found in cache */ | |
| 58 | u_long alloc_cacheflush; /* flushed cached text */ | |
| 59 | u_long alloc_unused; /* flushed unused cached text */ | |
| 60 | u_long free; /* calls to xfree */ | |
| 61 | u_long free_inuse; /* still in use/sticky */ | |
| 62 | u_long free_cache; /* placed in cache */ | |
| 63 | u_long free_cacheswap; /* swapped out to place in cache */ | |
| 64 | }; |