gno/include/sys/uio.h
gdr-ftp 4e1bec2062 stdio.h:
Changed some '0' constants to '0L'.  Probably not necessary, but
	consider it paranoia from earlier ORCA/C bugs.

sys/syslog.h:
	These changes reflect the new implementation for syslog(3) and
	friends.  The biggest change is that the facility/priority (which
	is encoded as a single number) requires 32 bits, so has been moved
	from an int value to a long value.

	This means that any programs using syslog(3) cannot merely be
	relinked, but will need to be recompiled.

	This file also contained various constants coded as bitshift
	values, like (4<<3).  ORCA/C can't handle this in the context
	of a constant initializer, so these constants have been resolved
	and changed to single hex values.  The originals are left in
	comments.

sys/uio.h:
	- #include <sys/types.h> if it has not already been done.
	- change the return value of readv/writev back from size_t to
	  ssize_t.  I don't recall why they were originally changed,
	  given that they weren't implemented and BSD uses ssize_t.
1998-06-24 00:12:32 +00:00

99 lines
3.0 KiB
C

/*
* 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.
*
* @(#)uio.h 8.5 (Berkeley) 2/22/94
* $Id: uio.h,v 1.2 1998/06/24 00:12:32 gdr-ftp Exp $
*/
#ifndef _SYS_UIO_H_
#define _SYS_UIO_H_
#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif
/*
* XXX
* iov_base should be a void *.
*/
struct iovec {
char *iov_base; /* Base address. */
size_t iov_len; /* Length. */
};
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 */
UIO_NOCOPY /* don't copy, already in object */
};
#ifdef KERNEL
struct uio {
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;
};
/*
* Limits
*/
#define UIO_MAXIOV 1024 /* max 1K of iov's */
#define UIO_SMALLIOV 8 /* 8 on stack, else malloc */
#endif /* KERNEL */
#ifdef KERNEL
int uiomove __P((caddr_t, int, struct uio *));
#else /* !KERNEL */
#ifndef _SYS_CDEFS_H_
#include <sys/cdefs.h>
#endif
__BEGIN_DECLS
ssize_t readv __P((int, const struct iovec *, int));
ssize_t writev __P((int, const struct iovec *, int));
__END_DECLS
#endif /* KERNEL */
#endif /* !_SYS_UIO_H_ */