uio.h (4705B) - Raw
1 /* 2 * Copyright (c) 2000-2019 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 29 /* 30 * Copyright (c) 1982, 1986, 1993, 1994 31 * The Regents of the University of California. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. All advertising materials mentioning features or use of this software 42 * must display the following acknowledgement: 43 * This product includes software developed by the University of 44 * California, Berkeley and its contributors. 45 * 4. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)uio.h 8.5 (Berkeley) 2/22/94 62 */ 63 64 #ifndef _SYS_UIO_H_ 65 #define _SYS_UIO_H_ 66 67 #include <Availability.h> 68 #include <sys/cdefs.h> 69 #include <sys/_types.h> 70 #include <sys/_types/_off_t.h> 71 72 /* 73 * [XSI] The ssize_t and size_t types shall be defined as described 74 * in <sys/types.h>. 75 */ 76 #include <sys/_types/_size_t.h> 77 #include <sys/_types/_ssize_t.h> 78 79 /* 80 * [XSI] Structure whose address is passed as the second parameter to the 81 * readv(), preadv(), writev() and pwritev() functions. 82 */ 83 #include <sys/_types/_iovec_t.h> 84 85 86 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 87 /* 88 * IO direction for uio_t. 89 * UIO_READ - data moves into iovec(s) associated with uio_t 90 * UIO_WRITE - data moves out of iovec(s) associated with uio_t 91 */ 92 enum uio_rw { UIO_READ, UIO_WRITE }; 93 #endif 94 95 96 97 __BEGIN_DECLS 98 ssize_t readv(int, const struct iovec *, int) __DARWIN_ALIAS_C(readv); 99 ssize_t writev(int, const struct iovec *, int) __DARWIN_ALIAS_C(writev); 100 101 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || defined(_DARWIN_C_SOURCE) 102 103 ssize_t preadv(int, const struct iovec *, int, off_t) __DARWIN_NOCANCEL(preadv) __API_AVAILABLE(macos(11.0), ios(14.0), watchos(7.0), tvos(14.0)); 104 ssize_t pwritev(int, const struct iovec *, int, off_t) __DARWIN_NOCANCEL(pwritev) __API_AVAILABLE(macos(11.0), ios(14.0), watchos(7.0), tvos(14.0)); 105 106 #endif /* #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || defined(_DARWIN_C_SOURCE) */ 107 108 __END_DECLS 109 110 111 #endif /* !_SYS_UIO_H_ */