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Annotation of 43BSD/sys/h/uio.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)uio.h       7.1 (Berkeley) 6/4/86
        !             7:  */
        !             8: 
        !             9: #ifndef _UIO_
        !            10: #define        _UIO_
        !            11: 
        !            12: struct iovec {
        !            13:        caddr_t iov_base;
        !            14:        int     iov_len;
        !            15: };
        !            16: 
        !            17: struct uio {
        !            18:        struct  iovec *uio_iov;
        !            19:        int     uio_iovcnt;
        !            20:        off_t   uio_offset;
        !            21:        int     uio_segflg;
        !            22:        int     uio_resid;
        !            23: };
        !            24: 
        !            25: enum   uio_rw { UIO_READ, UIO_WRITE };
        !            26: 
        !            27: /*
        !            28:  * Segment flag values (should be enum).
        !            29:  */
        !            30: #define UIO_USERSPACE  0               /* from user data space */
        !            31: #define UIO_SYSSPACE   1               /* from system space */
        !            32: #define UIO_USERISPACE 2               /* from user I space */
        !            33: #endif

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