uio.h

来自「基于组件方式开发操作系统的OSKIT源代码」· C头文件 代码 · 共 36 行

/*
 * Copyright (c) 1996-1998 University of Utah and the Flux Group.
 * All rights reserved.
 * 
 * This file is part of the Flux OSKit.  The OSKit is free software, also known
 * as "open source;" you can redistribute it and/or modify it under the terms
 * of the GNU General Public License (GPL), version 2, as published by the Free
 * Software Foundation (FSF).  To explore alternate licensing terms, contact
 * the University of Utah at [e-mail] or [phone].
 * 
 * The OSKit 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 GPL for more details.  You should have
 * received a copy of the GPL along with the OSKit; see the file COPYING.  If
 * not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
 */
#ifndef _OSKIT_C_SYS_UIO_H_
#define	_OSKIT_C_SYS_UIO_H_

#include <oskit/compiler.h>

/*
 * This iovec structure definition is identical
 * to the oskit_iovec structure defined in <oskit/io/iovec.h>;
 * pointers can be freely cast between the two.
 */
struct iovec {
	void	*iov_base;	/* Base address of memory region. */
	size_t	 iov_len;	/* Size of the memory region. */
};

ssize_t	readv(int fd, const struct iovec *iov, int iovcnt);
ssize_t	writev(int fd, const struct iovec *iov, int iovcnt);

#endif /* !_OSKIT_C_SYS_UIO_H_ */