usr/src/lib/libbc/inc/include/sys/uio.h

   1 /*
   2  * Copyright 1989 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*
   7  * Copyright (c) 1982, 1986 Regents of the University of California.
   8  * All rights reserved.  The Berkeley software License Agreement
   9  * specifies the terms and conditions for redistribution.
  10  */
  11
  12 #pragma ident   "%Z%%M% %I%     %E% SMI"
  13
  14 #ifndef _sys_uio_h
  15 #define _sys_uio_h
  16
  17 struct  iovec {
  18         caddr_t iov_base;
  19         int     iov_len;
  20 };
  21
  22 /*
  23  * The uio_seg define below is obsolete and is included only
  24  * for compatibility with previous releases.  New code should
  25  * use the uio_segflg field.
  26  */
  27 struct  uio {
  28         struct  iovec *uio_iov;
  29         int     uio_iovcnt;
  30         off_t   uio_offset;
  31         short   uio_segflg;
  32 #define uio_seg uio_segflg              /* obsolete */
  33         short   uio_fmode;              /* careful what you put here, the file
  34                                          * bits that fill this are an int. */
  35         int     uio_resid;
  36 };
  37
  38 enum    uio_rw { UIO_READ, UIO_WRITE };
  39
  40 /*
  41  * Segment flag values (should be enum).
  42  *
  43  * The UIOSEG_* defines are obsolete and are included only
  44  * for compatibility with previous releases.  New code should
  45  * use the UIO_* definitions.
  46  */
  47 #define UIO_USERSPACE   0               /* from user data space */
  48 #define UIO_SYSSPACE    1               /* from system space */
  49 #define UIO_USERISPACE  2               /* from user I space */
  50
  51 #define UIOSEG_USER     0               /* obsolete */
  52 #define UIOSEG_KERNEL   1               /* obsolete */
  53
  54 #endif  /*!_sys_uio_h*/