1 /*	$NetBSD: atomicio.h,v 1.2 2009/06/07 22:38:46 christos Exp $	*/
2 /* $OpenBSD: atomicio.h,v 1.10 2006/08/03 03:34:41 deraadt Exp $ */
3 
4 /*
5  * Copyright (c) 2006 Damien Miller.  All rights reserved.
6  * Copyright (c) 1995,1999 Theo de Raadt.  All rights reserved.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #ifndef _ATOMICIO_H
31 #define _ATOMICIO_H
32 
33 /*
34  * Ensure all of data on socket comes through. f==read || f==vwrite
35  */
36 size_t	atomicio(ssize_t (*)(int, void *, size_t), int, void *, size_t);
37 
38 #define vwrite (ssize_t (*)(int, void *, size_t))write
39 
40 /*
41  * ensure all of data on socket comes through. f==readv || f==writev
42  */
43 size_t	atomiciov(ssize_t (*)(int, const struct iovec *, int),
44     int, const struct iovec *, int);
45 
46 #endif /* _ATOMICIO_H */
47