2.11BSD#431 - /usr/src/sys/h/uio.h

   1: /*
   2:  * Copyright (c) 1982, 1986, 1993, 1994
   3:  *	The Regents of the University of California.  All rights reserved.
   4:  *
   5:  * Redistribution and use in source and binary forms, with or without
   6:  * modification, are permitted provided that the following conditions
   7:  * are met:
   8:  * 1. Redistributions of source code must retain the above copyright
   9:  *    notice, this list of conditions and the following disclaimer.
  10:  * 2. Redistributions in binary form must reproduce the above copyright
  11:  *    notice, this list of conditions and the following disclaimer in the
  12:  *    documentation and/or other materials provided with the distribution.
  13:  * 3. All advertising materials mentioning features or use of this software
  14:  *    must display the following acknowledgement:
  15:  *	This product includes software developed by the University of
  16:  *	California, Berkeley and its contributors.
  17:  * 4. Neither the name of the University nor the names of its contributors
  18:  *    may be used to endorse or promote products derived from this software
  19:  *    without specific prior written permission.
  20:  *
  21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31:  * SUCH DAMAGE.
  32:  *
  33:  *	@(#)uio.h	8.5.2 (2.11BSD GTE) 12/20/94
  34:  *
  35:  * Copied from 4.4-Lite and modified for 2.11BSD.  Modifications were removal
  36:  * of prototypes, limits for dynamic allocation of iovec structs and changing
  37:  * uio_resid to u_short from int.
  38:  */
  39: 
  40: #ifndef _SYS_UIO_H_
  41: #define _SYS_UIO_H_
  42: 
  43: /*
  44:  * XXX
  45:  * iov_base should be a void *.
  46:  */
  47: struct iovec {
  48:     char    *iov_base;  /* Base address. */
  49:     size_t   iov_len;   /* Length. */
  50: };
  51: 
  52: enum    uio_rw { UIO_READ, UIO_WRITE };
  53: 
  54: /* Segment flag values. */
  55: enum uio_seg {
  56:     UIO_USERSPACE,      /* from user data space */
  57:     UIO_SYSSPACE,       /* from system space */
  58:     UIO_USERISPACE      /* from user I space */
  59: };
  60: 
  61: struct uio {
  62:     struct  iovec *uio_iov;
  63:     int uio_iovcnt;
  64:     off_t   uio_offset;
  65:     u_short uio_resid;
  66:     enum    uio_seg uio_segflg;
  67:     enum    uio_rw uio_rw;
  68: };
  69: #endif /* !_SYS_UIO_H_ */

Defined struct's

Defined enum's

Defined macros

Usage of this include