1 /* $OpenBSD: atomicio.h,v 1.12 2018/12/27 03:25:25 djm Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Damien Miller. All rights reserved. 5 * Copyright (c) 1995,1999 Theo de Raadt. All rights reserved. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _ATOMICIO_H 30 #define _ATOMICIO_H 31 32 struct iovec; 33 34 /* 35 * Ensure all of data on socket comes through. f==read || f==vwrite 36 */ 37 size_t 38 atomicio6(ssize_t (*f) (int, void *, size_t), int fd, void *_s, size_t n, 39 int (*cb)(void *, size_t), void *); 40 size_t atomicio(ssize_t (*)(int, void *, size_t), int, void *, size_t); 41 42 #define vwrite (ssize_t (*)(int, void *, size_t))write 43 44 /* 45 * ensure all of data on socket comes through. f==readv || f==writev 46 */ 47 size_t 48 atomiciov6(ssize_t (*f) (int, const struct iovec *, int), int fd, 49 const struct iovec *_iov, int iovcnt, int (*cb)(void *, size_t), void *); 50 size_t atomiciov(ssize_t (*)(int, const struct iovec *, int), 51 int, const struct iovec *, int); 52 53 #endif /* _ATOMICIO_H */ 54