1/* $NetBSD: atomicio.h,v 1.8 2019/04/20 17:16:40 christos Exp $ */
2/* $OpenBSD: atomicio.h,v 1.12 2018/12/27 03:25:25 djm 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
33struct iovec;
34
35/*
36 * Ensure all of data on socket comes through. f==read || f==vwrite
37 */
38size_t
39atomicio6(ssize_t (*f) (int, void *, size_t), int fd, void *_s, size_t n,
40 int (*cb)(void *, size_t), void *);
41size_t atomicio(ssize_t (*)(int, void *, size_t), int, void *, size_t);
42
43#define vwrite (ssize_t (*)(int, void *, size_t))write
44
45/*
46 * ensure all of data on socket comes through. f==readv || f==writev
47 */
48size_t
49atomiciov6(ssize_t (*f) (int, const struct iovec *, int), int fd,
50 const struct iovec *_iov, int iovcnt, int (*cb)(void *, size_t), void *);
51size_t atomiciov(ssize_t (*)(int, const struct iovec *, int),
52 int, const struct iovec *, int);
53
54#endif /* _ATOMICIO_H */
55