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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [sys/] [uio.h] - Rev 291
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/* * 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 * $Id: uio.h,v 1.2 2001-09-27 12:02:00 chris Exp $ */ #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_SYSSPACE, /* from system space */ UIO_USERISPACE, /* from user I space */ UIO_NOCOPY /* don't copy, already in object */ }; #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 */ #endif /* KERNEL */ #ifdef KERNEL int uiomove __P((caddr_t, int, struct uio *)); #else /* !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_ */
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