/*
 * $Id: uio.h,v 1.5 1993/06/04 11:16:15 jraja Exp $
 *
 * Copyright (c) 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>
 *                    Helsinki University of Technology, Finland.
 *                    All rights reserved.
 *
 * HISTORY
 * $Log: uio.h,v $
 * Revision 1.5  1993/06/04  11:16:15  jraja
 * Fixes for first public release.
 *
 * Revision 1.4  1993/05/17  01:02:04  ppessi
 * Changed RCS version
 *
 * Revision 1.3  1993/03/03  18:27:10  jraja
 * Cleanup2.
 *
 * Revision 1.2  93/03/03  15:23:05  15:23:05  jraja (Jarno Tapio Rajahalme)
 * Cleanup.
 * 
 * Revision 1.1  93/02/23  11:34:25  11:34:25  too (Tomi Ollila)
 * Initial revision
 */

/*
 * Copyright (c) 1982, 1986 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.
 *
 *	@(#)uio.h	7.8 (Berkeley) 4/15/91
 */

#ifndef SYS_UIO_H
#define	SYS_UIO_H

struct iovec {
	caddr_t	iov_base;
	int	iov_len;
};

#ifndef AMITCP
enum	uio_rw { UIO_READ, UIO_WRITE };

/*
 * Segment flag values.
 */
enum	uio_seg {
	UIO_USERSPACE,		/* from user data space */
	UIO_SYSSPACE,		/* from system space */
	UIO_USERISPACE		/* from user I space */
};
#endif /* !AMITCP */

struct uio {
#ifndef AMITCP
	struct	iovec *uio_iov;
	int	uio_iovcnt;
	off_t	uio_offset;
	int	uio_resid;
	enum	uio_seg uio_segflg;
	enum	uio_rw uio_rw;
	struct	proc *uio_procp;
#else
	struct	iovec *uio_iov;
	int	uio_iovcnt;
	int	uio_resid;
	struct	SocketBase *uio_procp;
#endif	
};

 /*
  * Limits
  */
#define UIO_MAXIOV	1024		/* max 1K of iov's */
#define UIO_SMALLIOV	8		/* 8 on stack, else malloc */

#endif /* !SYS_UIO_H */