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Annotation of xinu/h/rfile.h, revision 1.1

1.1     ! root        1: /* rfile.h */
        !             2: 
        !             3: #include <file.h>
        !             4: 
        !             5: /* Remote file device control block and defined constants */
        !             6: 
        !             7: /* Constants for server device control functions */
        !             8: 
        !             9: #define        RFCLEAR         1               /* Clear incoming messages      */
        !            10: 
        !            11: /* Constants for controlling retrys for server communication */
        !            12: 
        !            13: #define        RTIMOUT         5               /* Timeout for server response  */
        !            14: #define        RMAXTRY         2               /* Number of retrys per op.     */
        !            15: 
        !            16: /* Constants for rf pseudo-device state variable */
        !            17: 
        !            18: #define        RFREE           -1              /* This pseudo-device is unused */
        !            19: #define        RUSED           1               /* This pseudo-device is used   */
        !            20: 
        !            21: /* Declaration of rf pseudo-device I/O control block */
        !            22: 
        !            23: struct rfblk   {                       /* Remote file control block    */
        !            24:        int     rf_dnum;                /* File's device num in devtab  */
        !            25:        char    rf_name[RNAMLEN];       /* Name of remote file          */
        !            26:        int     rf_state;               /* State of this pseudo device  */
        !            27:        int     rf_mode;                /* FLREAD, FLWRITE or both      */
        !            28:        int     rf_mutex;               /* exclusion for this file      */
        !            29:        long    rf_pos;                 /* current byte offset in file  */
        !            30: };
        !            31: 
        !            32: #ifndef        Nrf
        !            33: #define        Nrf     1
        !            34: #endif
        !            35: struct rfinfo  {                       /* all remote server info.      */
        !            36:        int     device;                 /* device descriptor for server */
        !            37:        int     rmutex;                 /* mutual exclusion for server  */
        !            38:        struct  rfblk   rftab[Nrf];     /* remote file control blocks   */
        !            39: };
        !            40: 
        !            41: extern struct  rfinfo  Rf;

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