From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- misc/sys/uio.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 misc/sys/uio.h (limited to 'misc/sys/uio.h') diff --git a/misc/sys/uio.h b/misc/sys/uio.h new file mode 100644 index 0000000000..301712546f --- /dev/null +++ b/misc/sys/uio.h @@ -0,0 +1,58 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#ifndef _SYS_UIO_H + +#define _SYS_UIO_H 1 +#include + +__BEGIN_DECLS + +#define __need_size_t +#include + + +/* Structure describing a section of memory. */ + +struct iovec +{ + /* Starting address. */ + __ptr_t iov_base; + /* Length in bytes. */ + size_t iov_len; +}; + + +/* Read data from file descriptor FD, and put the result in the + buffers described by VECTOR, which is a vector of COUNT `struct iovec's. + The buffers are filled in the order specified. + Operates just like `read' (see ) except that data are + put in VECTOR instead of a contiguous buffer. */ +int readv __P ((int __fd, __const struct iovec * __vector, size_t __count)); + +/* Write data pointed by the buffers described by VECTOR, which + is a vector of COUNT `struct iovec's, to file descriptor FD. + The data is written in the order specified. + Operates just like `write' (see ) except that the data + are taken from VECTOR instead of a contiguous buffer. */ +int writev __P ((int __fd, __const struct iovec * __vector, size_t __count)); + + +__END_DECLS + +#endif /* sys/uio.h */ -- cgit 1.4.1