59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* 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 <features.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
#define __need_size_t
|
|
#include <stddef.h>
|
|
|
|
|
|
/* 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 <unistd.h>) 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 <unistd.h>) 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 */
|