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Annotation of researchv8dc/sys/boot/stand/saio.h, revision 1.1

1.1     ! root        1: 
        !             2: /*     saio.h  4.4     3/15/81 */
        !             3: 
        !             4: /*
        !             5:  * header file for standalone package
        !             6:  */
        !             7: 
        !             8: /*
        !             9:  * io block: includes an
        !            10:  * inode, cells for the use of seek, etc,
        !            11:  * and a buffer.
        !            12:  */
        !            13: #undef i_buf   /* curse you clever folk from inode.h */
        !            14: struct iob {
        !            15:        char    i_flgs;
        !            16:        char    i_blksz;        /* BIG or SMALL */
        !            17:        struct  inode i_ino;
        !            18:        int     i_unit;
        !            19:        daddr_t i_boff;
        !            20:        daddr_t i_cyloff;
        !            21:        off_t   i_offset;
        !            22:        daddr_t i_bn;
        !            23:        char    *i_ma;
        !            24:        int     i_cc;
        !            25:        char    i_buf[BUFSIZE];
        !            26: };
        !            27: 
        !            28: #define F_READ 01
        !            29: #define F_WRITE        02
        !            30: #define F_ALLOC        04
        !            31: #define F_FILE 010
        !            32: 
        !            33: /*
        !            34:  * dev switch
        !            35:  */
        !            36: #define SMALL 0
        !            37: #define BIG 64
        !            38: struct devsw {
        !            39:        char    *dv_name;
        !            40:        int     (*dv_strategy)();
        !            41:        int     (*dv_open)();
        !            42:        int     (*dv_close)();
        !            43:        int     dv_size;                /* BIG or SMALL */
        !            44: };
        !            45: 
        !            46: struct devsw devsw[];
        !            47: 
        !            48: /*
        !            49:  * request codes. Must be the same a F_XXX above
        !            50:  */
        !            51: #define        READ    1
        !            52: #define        WRITE   2
        !            53: 
        !            54: #define        NBUFS   4
        !            55: 
        !            56: char   b[NBUFS][BUFSIZE];
        !            57: daddr_t        blknos[NBUFS];
        !            58: 
        !            59: #define NFILES 4
        !            60: struct iob iob[NFILES];

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