/*
 * $Id$
 * 
 * This file belongs to FreeMiNT. It's not in the original MiNT 1.12
 * distribution. See the file CHANGES for a detailed log of changes.
 * 
 * 
 * Modified for FreeMiNT by Frank Naumann <fnaumann@freemint.de>
 * 
 * Please send suggestions, patches or bug reports to me or
 * the MiNT mailing list.
 * 
 * 
 * Copyright (c) 1982, 1986, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 */

# ifndef _mint_uio_h
# define _mint_uio_h

# ifdef __KERNEL__
# inckude "ktypes.h"
# endif


struct iovec;
struct proc;


/* rw flag values */
enum uio_rw
{
	UIO_READ,
	UIO_WRITE
};

/* segment flag values */
enum uio_seg
{
	UIO_USERSPACE,			/* from user data space */
	UIO_SYSSPACE			/* from system space */
};

struct uio
{
	struct iovec	*uio_iov;	/* pointer to array of iovecs */
	short		 uio_iovcnt;	/* number of iovecs in array */
	short		 uio_res;	/* reserved */
	llong		 uio_offset;	/* offset into file this uio corresponds to */
	long		 uio_resid;	/* residual i/o count */
	enum uio_seg	 uio_segflg;	/* see above */
	enum uio_rw	 uio_rw;	/* see above */
	struct proc	*uio_proc;	/* process if UIO_USERSPACE */
};


# ifdef __KERNEL__
# define UIO_SMALLIOV	8		/* 8 on stack, else malloc */
# endif


# endif /* _mint_uio_h */
