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Annotation of coherent/a/usr/include.b4ps2/fcntl.h, revision 1.1

1.1     ! root        1: /* (-lgl
        !             2:  *     COHERENT Version 3.2.2
        !             3:  *     Copyright (c) 1982, 1992 by Mark Williams Company.
        !             4:  *     All rights reserved. May not be copied without permission.
        !             5:  -lgl) */
        !             6: /*
        !             7:  * /usr/include/fcntl.h
        !             8:  * Cf. Intel iBCS2, pp. 6-35, 6-36.
        !             9:  */
        !            10: 
        !            11: #ifndef        _FCNTL_H
        !            12: #define        _FCNTL_H
        !            13: 
        !            14: /*
        !            15:  * Flag values accessible to open() and fcntl()
        !            16:  * The first three can only be set by open().
        !            17:  */
        !            18: #define        O_RDONLY        0x00
        !            19: #define        O_WRONLY        0x01
        !            20: #define        O_RDWR          0x02
        !            21: #define        O_NDELAY        0x04    /* non-blocking i/o                     */
        !            22: #define        O_APPEND        0x08    /* append (writes guaranteed at the end */
        !            23: 
        !            24: #ifdef _I386
        !            25: #define O_SYNC         0x10    /* sync on every write                  */
        !            26: #define        O_NONBLOCK      0x80    /* non-blocking i/o                     */
        !            27: 
        !            28: /* Flag values accessible only to 3 argument open(). */
        !            29: #define        O_CREAT         0x100   /* open with file create (third open arg) */
        !            30: #define        O_TRUNC         0x200   /* open with truncation                 */
        !            31: #define        O_EXCL          0x400   /* exclusive open                       */
        !            32: #define O_NOCTTY       0x800   /* don't assign a controlling tty       */
        !            33: 
        !            34: #endif /* _I386 */
        !            35: 
        !            36: /* fcntl() requests. */
        !            37: #define        F_DUPFD         0       /* duplicate file desriptor             */
        !            38: #define        F_GETFD         1       /* get file descriptor flags            */
        !            39: #define        F_SETFD         2       /* set file descriptor flags            */
        !            40: #define        F_GETFL         3       /* get file flags                       */
        !            41: #define        F_SETFL         4       /* set file flags                       */
        !            42: #define        F_GETLK         5       /* return blocking lock                 */
        !            43: #define        F_SETLK         6       /* set or remove lock, return if blocked */
        !            44: #define        F_SETLKW        7       /* set or remove lock, sleep if blocked */
        !            45: 
        !            46: /* Locking command/return structure. */
        !            47: typedef struct flock {
        !            48:        short   l_type;         /* F_RDLCK, F_WRLCK, or F_UNLCK         */
        !            49:        short   l_whence;       /* SEEK_SET, SEEK_CUR, SEEK_END         */
        !            50:        long    l_start;        /* location                             */
        !            51:        long    l_len;          /* 0 is through EOF                     */
        !            52:        short   l_sysid;        /* system id of lock (for GETLK) ?      */
        !            53:        short   l_pid;          /* process id of owner (for GETLK)      */
        !            54: } FLOCK;
        !            55: 
        !            56: /* lock() command types. */
        !            57: #define        F_RDLCK 1               /* read lock; more than 1 allowed       */
        !            58: #define        F_WRLCK 2               /* write lock; blocks any lock          */
        !            59: #define        F_UNLCK 3               /* unlock                               */
        !            60: 
        !            61: /* Close on exec bit for struct fd member f_flags2. */
        !            62: #define        FD_CLOEXEC      1       /* close fd on exec                     */
        !            63: 
        !            64: #endif /* _FCNTL_H */
        !            65: /* end of fcntl.h */

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