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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1998-08-19 21:32:28 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1998-08-19 21:32:28 +0000 |
commit | 39e6e65a2c5a3312f365d59f23c469641e049c82 (patch) | |
tree | c0d6000a18918db140589a84596a8dfc215a4ced /c/src/lib/libnetworking/sys/uio.h | |
parent | First version produced. (diff) | |
download | rtems-39e6e65a2c5a3312f365d59f23c469641e049c82.tar.bz2 |
Base files
Diffstat (limited to 'c/src/lib/libnetworking/sys/uio.h')
-rw-r--r-- | c/src/lib/libnetworking/sys/uio.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/c/src/lib/libnetworking/sys/uio.h b/c/src/lib/libnetworking/sys/uio.h new file mode 100644 index 0000000000..305941500d --- /dev/null +++ b/c/src/lib/libnetworking/sys/uio.h @@ -0,0 +1,92 @@ +/* + * 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 + * $Id$ + */ + +#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_ */ |