rumpfiber_bio.c revision 1.1.6.2
1 1.1.6.2 tls /*- 2 1.1.6.2 tls * Copyright (c) 2014 Antti Kantee. All Rights Reserved. 3 1.1.6.2 tls * 4 1.1.6.2 tls * Redistribution and use in source and binary forms, with or without 5 1.1.6.2 tls * modification, are permitted provided that the following conditions 6 1.1.6.2 tls * are met: 7 1.1.6.2 tls * 1. Redistributions of source code must retain the above copyright 8 1.1.6.2 tls * notice, this list of conditions and the following disclaimer. 9 1.1.6.2 tls * 2. Redistributions in binary form must reproduce the above copyright 10 1.1.6.2 tls * notice, this list of conditions and the following disclaimer in the 11 1.1.6.2 tls * documentation and/or other materials provided with the distribution. 12 1.1.6.2 tls * 13 1.1.6.2 tls * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 14 1.1.6.2 tls * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 1.1.6.2 tls * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 1.1.6.2 tls * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 1.1.6.2 tls * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 1.1.6.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19 1.1.6.2 tls * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 1.1.6.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 1.1.6.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 1.1.6.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 1.1.6.2 tls * SUCH DAMAGE. 24 1.1.6.2 tls */ 25 1.1.6.2 tls 26 1.1.6.2 tls #include "rumpuser_port.h" 27 1.1.6.2 tls 28 1.1.6.2 tls #if !defined(lint) 29 1.1.6.2 tls __RCSID("$NetBSD: rumpfiber_bio.c,v 1.1.6.2 2014/08/20 00:02:21 tls Exp $"); 30 1.1.6.2 tls #endif /* !lint */ 31 1.1.6.2 tls 32 1.1.6.2 tls #include <sys/types.h> 33 1.1.6.2 tls 34 1.1.6.2 tls #include <stdint.h> 35 1.1.6.2 tls #include <unistd.h> 36 1.1.6.2 tls 37 1.1.6.2 tls #include <rump/rumpuser.h> 38 1.1.6.2 tls 39 1.1.6.2 tls #include "rumpuser_int.h" 40 1.1.6.2 tls 41 1.1.6.2 tls void 42 1.1.6.2 tls rumpuser_bio(int fd, int op, void *data, size_t dlen, int64_t doff, 43 1.1.6.2 tls rump_biodone_fn biodone, void *bioarg) 44 1.1.6.2 tls { 45 1.1.6.2 tls ssize_t rv; 46 1.1.6.2 tls int error = 0; 47 1.1.6.2 tls 48 1.1.6.2 tls if (op & RUMPUSER_BIO_READ) { 49 1.1.6.2 tls if ((rv = pread(fd, data, dlen, doff)) == -1) 50 1.1.6.2 tls error = errno; 51 1.1.6.2 tls } else { 52 1.1.6.2 tls if ((rv = pwrite(fd, data, dlen, doff)) == -1) 53 1.1.6.2 tls error = errno; 54 1.1.6.2 tls if (error == 0 && (op & RUMPUSER_BIO_SYNC)) { 55 1.1.6.2 tls #ifdef __NetBSD__ 56 1.1.6.2 tls fsync_range(fd, FDATASYNC, doff, dlen); 57 1.1.6.2 tls #else 58 1.1.6.2 tls fsync(fd); 59 1.1.6.2 tls #endif 60 1.1.6.2 tls } 61 1.1.6.2 tls } 62 1.1.6.2 tls if (rv == -1) 63 1.1.6.2 tls rv = 0; 64 1.1.6.2 tls biodone(bioarg, (size_t)rv, error); 65 1.1.6.2 tls } 66
Indexes created Sat Nov 01 05:10:12 GMT 2025