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78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
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/*
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* Copyright (c) 2010 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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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* $FreeBSD$
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*/
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#ifndef _OPENSOLARIS_SYS_UIO_H_
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#define _OPENSOLARIS_SYS_UIO_H_
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#include_next <sys/uio.h>
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#include <sys/_uio.h>
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#include <sys/debug.h>
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#define uio_loffset uio_offset
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typedef struct uio uio_t;
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typedef struct iovec iovec_t;
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typedef enum uio_seg uio_seg_t;
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typedef enum xuio_type {
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UIOTYPE_ASYNCIO,
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UIOTYPE_ZEROCOPY
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} xuio_type_t;
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typedef struct xuio {
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uio_t xu_uio;
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/* Extended uio fields */
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enum xuio_type xu_type; /* What kind of uio structure? */
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union {
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struct {
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int xu_zc_rw;
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void *xu_zc_priv;
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} xu_zc;
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} xu_ext;
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} xuio_t;
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#define XUIO_XUZC_PRIV(xuio) xuio->xu_ext.xu_zc.xu_zc_priv
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#define XUIO_XUZC_RW(xuio) xuio->xu_ext.xu_zc.xu_zc_rw
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static __inline int
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zfs_uiomove(void *cp, size_t n, enum uio_rw dir, uio_t *uio)
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{
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ASSERT(uio->uio_rw == dir);
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return (uiomove(cp, (int)n, uio));
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}
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#define uiomove(cp, n, dir, uio) zfs_uiomove((cp), (n), (dir), (uio))
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int uiocopy(void *p, size_t n, enum uio_rw rw, struct uio *uio, size_t *cbytes);
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void uioskip(uio_t *uiop, size_t n);
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#endif /* !_OPENSOLARIS_SYS_UIO_H_ */
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