1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2024 The FreeBSD Foundation 5 * 6 * This software were developed by Konstantin Belousov <kib@FreeBSD.org> 7 * under sponsorship from the FreeBSD Foundation. 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 AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/aio.h> 32 #include <errno.h> 33 #include <stddef.h> 34 35 int 36 aio_read2(struct aiocb *iocb, int flags) 37 { 38 int error; 39 40 if ((flags & ~(AIO_OP2_FOFFSET | AIO_OP2_VECTORED)) != 0) { 41 errno = EINVAL; 42 return (-1); 43 } 44 iocb->aio_lio_opcode = LIO_READ; 45 if ((flags & AIO_OP2_FOFFSET) != 0) 46 iocb->aio_lio_opcode |= LIO_FOFFSET; 47 if ((flags & AIO_OP2_VECTORED) != 0) 48 iocb->aio_lio_opcode |= LIO_VECTORED; 49 50 error = lio_listio(LIO_NOWAIT, &iocb, 1, NULL); 51 if (error == -1 && errno == EIO) { 52 error = aio_error(iocb); 53 if (error != -1 && error != 0) 54 errno = error; 55 error = -1; 56 } 57 return (error); 58 } 59