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Annotation of researchv9/sys/h/text.h, revision 1.1.1.1

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

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