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/*-
* Copyright (c) 2010 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
*
* $FreeBSD: release/9.1.0/sys/cddl/compat/opensolaris/sys/uio.h 219089 2011-02-27 19:41:40Z pjd $
*/
#ifndef _OPENSOLARIS_SYS_UIO_H_
#define _OPENSOLARIS_SYS_UIO_H_
#include_next <sys/uio.h>
#include <sys/debug.h>
#ifndef _KERNEL
#define FOF_OFFSET 1 /* Use the offset in uio argument */
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;
void *uio_td;
};
#endif
#define uio_loffset uio_offset
typedef struct uio uio_t;
typedef struct iovec iovec_t;
typedef enum xuio_type {
UIOTYPE_ASYNCIO,
UIOTYPE_ZEROCOPY
} xuio_type_t;
typedef struct xuio {
uio_t xu_uio;
/* Extended uio fields */
enum xuio_type xu_type; /* What kind of uio structure? */
union {
struct {
int xu_zc_rw;
void *xu_zc_priv;
} xu_zc;
} xu_ext;
} xuio_t;
#define XUIO_XUZC_PRIV(xuio) xuio->xu_ext.xu_zc.xu_zc_priv
#define XUIO_XUZC_RW(xuio) xuio->xu_ext.xu_zc.xu_zc_rw
#ifdef BUILDING_ZFS
static __inline int
zfs_uiomove(void *cp, size_t n, enum uio_rw dir, uio_t *uio)
{
ASSERT(uio->uio_rw == dir);
return (uiomove(cp, (int)n, uio));
}
#define uiomove(cp, n, dir, uio) zfs_uiomove((cp), (n), (dir), (uio))
int uiocopy(void *p, size_t n, enum uio_rw rw, struct uio *uio, size_t *cbytes);
void uioskip(uio_t *uiop, size_t n);
#endif /* BUILDING_ZFS */
#endif /* !_OPENSOLARIS_SYS_UIO_H_ */