15b9bcb121
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*
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* Copyright (c) 1982, 1986, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)uio.h 8.5 (Berkeley) 2/22/94
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* $FreeBSD$
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*/
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#ifndef _SYS_UIO_H_
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#define _SYS_UIO_H_
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/*
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* XXX
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* iov_base should be a void *.
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*/
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struct iovec {
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char *iov_base; /* Base address. */
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size_t iov_len; /* Length. */
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};
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enum uio_rw { UIO_READ, UIO_WRITE };
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/* Segment flag values. */
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enum uio_seg {
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UIO_USERSPACE, /* from user data space */
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UIO_SYSSPACE, /* from system space */
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UIO_USERISPACE, /* from user I space */
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UIO_NOCOPY /* don't copy, already in object */
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};
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#ifdef _KERNEL
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struct uio {
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struct iovec *uio_iov;
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int uio_iovcnt;
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off_t uio_offset;
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int uio_resid;
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enum uio_seg uio_segflg;
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enum uio_rw uio_rw;
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struct proc *uio_procp;
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};
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/*
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* Limits
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*/
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#define UIO_MAXIOV 1024 /* max 1K of iov's */
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#define UIO_SMALLIOV 8 /* 8 on stack, else malloc */
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struct vm_object;
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int uiomove __P((caddr_t, int, struct uio *));
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int uiomoveco __P((caddr_t, int, struct uio *, struct vm_object *));
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int uioread __P((int, struct uio *, struct vm_object *, int *));
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#else /* !_KERNEL */
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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ssize_t readv __P((int, const struct iovec *, int));
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ssize_t writev __P((int, const struct iovec *, int));
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* !_SYS_UIO_H_ */
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