/* text.h 4.4 81/03/09 */ /* * Text structure. * One allocated per pure * procedure on swap device. * Manipulated by text.c */ #define NXDAD 12 /* param.h:MAXTSIZ / dmap.h:DMTEXT */ struct text { swblk_t x_daddr[NXDAD]; /* disk addresses of DMTEXT-page segments */ swblk_t x_ptdaddr; /* disk address of page table */ size_t x_size; /* size (clicks) */ struct proc *x_caddr; /* ptr to linked proc, if loaded */ struct inode *x_iptr; /* inode of prototype */ short x_rssize; short x_swrss; char x_count; /* reference count */ char x_ccount; /* number of loaded references */ char x_flag; /* traced, written flags */ char x_slptime; short x_poip; /* page out in progress count */ }; #ifdef KERNEL struct text *text, *textNTEXT; int ntext; #endif #define XTRC 01 /* Text may be written, exclusive use */ #define XWRIT 02 /* Text written into, must swap out */ #define XLOAD 04 /* Currently being read from file */ #define XLOCK 010 /* Being swapped in or out */ #define XWANT 020 /* Wanted for swapping */ #define XPAGI 040 /* Page in on demand from inode */