2011-04-27 23:42:16 +02:00
|
|
|
/* $NetBSD: uio.h,v 1.34 2006/03/01 12:38:32 yamt Exp $ */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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. 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
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef _SYS_UIO_H_
|
|
|
|
#define _SYS_UIO_H_
|
|
|
|
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#ifndef __UIO_EXPOSE
|
|
|
|
#define __UIO_EXPOSE
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include <machine/ansi.h>
|
|
|
|
#include <sys/featuretest.h>
|
|
|
|
|
2011-06-28 04:34:10 +02:00
|
|
|
#ifdef _EFI_SIZE_T_
|
|
|
|
typedef _EFI_SIZE_T_ size_t;
|
|
|
|
#undef _EFI_SIZE_T_
|
2011-04-27 23:42:16 +02:00
|
|
|
#undef _BSD_SIZE_T_
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef _BSD_SSIZE_T_
|
|
|
|
typedef _BSD_SSIZE_T_ ssize_t;
|
|
|
|
#undef _BSD_SSIZE_T_
|
|
|
|
#endif
|
|
|
|
|
|
|
|
struct iovec {
|
|
|
|
void *iov_base; /* Base address. */
|
|
|
|
size_t iov_len; /* Length. */
|
|
|
|
};
|
|
|
|
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
|
|
#include <sys/ansi.h>
|
|
|
|
|
|
|
|
#ifndef off_t
|
|
|
|
typedef __off_t off_t; /* file offset */
|
|
|
|
#define off_t __off_t
|
|
|
|
#endif
|
|
|
|
|
|
|
|
enum uio_rw { UIO_READ, UIO_WRITE };
|
|
|
|
|
|
|
|
/* Segment flag values. */
|
|
|
|
enum uio_seg {
|
|
|
|
UIO_USERSPACE, /* from user data space */
|
|
|
|
UIO_SYSSPACE /* from system space */
|
|
|
|
};
|
|
|
|
|
|
|
|
#ifdef __UIO_EXPOSE
|
|
|
|
|
|
|
|
struct uio {
|
|
|
|
struct iovec *uio_iov; /* pointer to array of iovecs */
|
|
|
|
int uio_iovcnt; /* number of iovecs in array */
|
|
|
|
off_t uio_offset; /* offset into file this uio corresponds to */
|
|
|
|
size_t uio_resid; /* residual i/o count */
|
|
|
|
enum uio_rw uio_rw; /* see above */
|
|
|
|
struct vmspace *uio_vmspace;
|
|
|
|
};
|
|
|
|
#define UIO_SETUP_SYSSPACE(uio) uio_setup_sysspace(uio)
|
|
|
|
|
|
|
|
#endif /* __UIO_EXPOSE */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Limits
|
|
|
|
*/
|
|
|
|
/* Deprecated: use IOV_MAX from <limits.h> instead. */
|
|
|
|
#define UIO_MAXIOV 1024 /* max 1K of iov's */
|
|
|
|
#endif /* _NETBSD_SOURCE */
|
|
|
|
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <sys/mallocvar.h>
|
|
|
|
|
|
|
|
MALLOC_DECLARE(M_IOV);
|
|
|
|
|
|
|
|
#define UIO_SMALLIOV 8 /* 8 on stack, else malloc */
|
|
|
|
|
|
|
|
void uio_setup_sysspace(struct uio *);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef _KERNEL
|
|
|
|
#include <sys/EfiCdefs.h>
|
|
|
|
|
|
|
|
__BEGIN_DECLS
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
|
|
ssize_t preadv(int, const struct iovec *, int, off_t);
|
|
|
|
ssize_t pwritev(int, const struct iovec *, int, off_t);
|
|
|
|
#endif /* _NETBSD_SOURCE */
|
|
|
|
ssize_t readv(int, const struct iovec *, int);
|
|
|
|
ssize_t writev(int, const struct iovec *, int);
|
|
|
|
__END_DECLS
|
|
|
|
#else
|
|
|
|
int ureadc(int, struct uio *);
|
|
|
|
#endif /* !_KERNEL */
|
|
|
|
|
|
|
|
#endif /* !_SYS_UIO_H_ */
|