home *** CD-ROM | disk | FTP | other *** search
- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
- /*
- * 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
- */
-
- #ifndef _SYS_UIO_H_
- #define _SYS_UIO_H_
-
- /*
- * 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_USERISPACE, /* from user I space */
- UIO_SYSSPACE, /* from system space */
- UIO_PHYS_USERSPACE /* kernel address is physical, to/from user data space */
- };
-
- #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 */
-
- extern int uiomove __P((caddr_t cp, int n, struct uio *uio));
- extern int ureadc __P((int c, struct uio *uio));
- extern int uwritec __P((struct uio *uio));
-
- #endif /* KERNEL */
-
- #ifndef KERNEL
- #include <sys/cdefs.h>
-
- __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_ */
-