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Annotation of coherent/c/usr/include/sys/filsys.h, revision 1.1

1.1     ! root        1: /* (-lgl
        !             2:  *     COHERENT Version 3.0
        !             3:  *     Copyright (c) 1982, 1990 by Mark Williams Company.
        !             4:  *     All rights reserved. May not be copied without permission.
        !             5:  -lgl) */
        !             6: /*
        !             7:  * Super block.
        !             8:  */
        !             9: 
        !            10: #ifndef         FILSYS_H
        !            11: #define  FILSYS_H      FILSYS_H
        !            12: 
        !            13: #include <sys/types.h>
        !            14: #include <sys/fblk.h>
        !            15: 
        !            16: /*
        !            17:  * Size definitions.
        !            18:  */
        !            19: #define NICINOD        100                     /* Number of free in core inodes */
        !            20: #define BSIZE  512                     /* Block size */
        !            21: #define INOPB  8                       /* Number of inodes per block */
        !            22: #define BOOTBI 0                       /* Boot block index */
        !            23: #define SUPERI 1                       /* Super block index */
        !            24: #define INODEI 2                       /* Inode block index */
        !            25: #define BADFIN 1                       /* Bad block inode number */
        !            26: #define ROOTIN 2                       /* Root inode number */
        !            27: 
        !            28: /*
        !            29:  * Super block.
        !            30:  */
        !            31: struct filsys {
        !            32:        unsigned short s_isize;         /* Firt block not in inode list */
        !            33:        daddr_t  s_fsize;               /* Size of entire volume */
        !            34:        short    s_nfree;               /* Number of addresses in s_free */
        !            35:        daddr_t  s_free[NICFREE];       /* Free block list */
        !            36:        short    s_ninode;              /* Number of inodes in s_inode */
        !            37:        ino_t    s_inode[NICINOD];      /* Free inode list */
        !            38:        char     s_flock;               /* Not used */
        !            39:        char     s_ilock;               /* Not used */
        !            40:        char     s_fmod;                /* Super block modified flag */
        !            41:        char     s_ronly;               /* Mounted read only flag */
        !            42:        time_t   s_time;                /* Last super block update */
        !            43:        daddr_t  s_tfree;               /* Total free blocks */
        !            44:        ino_t    s_tinode;              /* Total free inodes */
        !            45:        short    s_m;                   /* Interleave factor */
        !            46:        short    s_n;                   /* Interleave factor */
        !            47:        char     s_fname[6];            /* File system name */
        !            48:        char     s_fpack[6];            /* File system pack name */
        !            49:        long     s_unique;              /* Unique number */
        !            50: };
        !            51: 
        !            52: /*
        !            53:  * Functions.
        !            54:  */
        !            55: #define iblockn(ino)   (INODEI+(ino-1)/INOPB)
        !            56: #define iblocko(ino)   ((ino-1)%INOPB)
        !            57: 
        !            58: #endif

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