4.3BSD - /usr/src/sys/h/uio.h

   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

Defined struct's

Defined enum's

Defined macros

Usage of this include