netbsd32_event.c revision 1.9
1 1.9 joerg /* $NetBSD: netbsd32_event.c,v 1.9 2011/05/23 21:34:47 joerg Exp $ */ 2 1.1 cube 3 1.1 cube /* 4 1.1 cube * Copyright (c) 2005 The NetBSD Foundation. 5 1.1 cube * All rights reserved. 6 1.1 cube * 7 1.1 cube * Redistribution and use in source and binary forms, with or without 8 1.1 cube * modification, are permitted provided that the following conditions 9 1.1 cube * are met: 10 1.1 cube * 1. Redistributions of source code must retain the above copyright 11 1.1 cube * notice, this list of conditions and the following disclaimer. 12 1.1 cube * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 cube * notice, this list of conditions and the following disclaimer in the 14 1.1 cube * documentation and/or other materials provided with the distribution. 15 1.1 cube * 16 1.1 cube * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.1 cube * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.1 cube * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.1 cube * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.1 cube * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.1 cube * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.1 cube * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.1 cube * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.1 cube * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.1 cube * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.1 cube * POSSIBILITY OF SUCH DAMAGE. 27 1.1 cube */ 28 1.1 cube 29 1.1 cube #include <sys/cdefs.h> 30 1.9 joerg __KERNEL_RCSID(0, "$NetBSD: netbsd32_event.c,v 1.9 2011/05/23 21:34:47 joerg Exp $"); 31 1.1 cube 32 1.1 cube #include <sys/types.h> 33 1.1 cube #include <sys/param.h> 34 1.1 cube #include <sys/systm.h> 35 1.1 cube #include <sys/file.h> 36 1.1 cube #include <sys/filedesc.h> 37 1.1 cube #include <sys/select.h> 38 1.1 cube #include <sys/event.h> 39 1.1 cube #include <sys/eventvar.h> 40 1.1 cube #include <sys/proc.h> 41 1.1 cube #include <sys/dirent.h> 42 1.1 cube 43 1.1 cube #include <compat/netbsd32/netbsd32.h> 44 1.1 cube #include <compat/netbsd32/netbsd32_syscall.h> 45 1.1 cube #include <compat/netbsd32/netbsd32_syscallargs.h> 46 1.1 cube #include <compat/netbsd32/netbsd32_conv.h> 47 1.1 cube 48 1.1 cube static int 49 1.1 cube netbsd32_kevent_fetch_timeout(const void *src, void *dest, size_t length) 50 1.1 cube { 51 1.1 cube struct netbsd32_timespec ts32; 52 1.1 cube int error; 53 1.1 cube 54 1.1 cube KASSERT(length == sizeof(struct timespec)); 55 1.1 cube 56 1.1 cube error = copyin(src, &ts32, sizeof(ts32)); 57 1.1 cube if (error) 58 1.1 cube return error; 59 1.1 cube netbsd32_to_timespec(&ts32, (struct timespec *)dest); 60 1.1 cube return 0; 61 1.1 cube } 62 1.1 cube 63 1.1 cube static int 64 1.1 cube netbsd32_kevent_fetch_changes(void *private, const struct kevent *changelist, 65 1.1 cube struct kevent *changes, size_t index, int n) 66 1.1 cube { 67 1.1 cube const struct netbsd32_kevent *src = 68 1.1 cube (const struct netbsd32_kevent *)changelist; 69 1.1 cube struct netbsd32_kevent *kev32, *changes32 = private; 70 1.1 cube int error, i; 71 1.1 cube 72 1.1 cube error = copyin(src + index, changes32, n * sizeof(*changes32)); 73 1.1 cube if (error) 74 1.1 cube return error; 75 1.1 cube for (i = 0, kev32 = changes32; i < n; i++, kev32++, changes++) 76 1.1 cube netbsd32_to_kevent(kev32, changes); 77 1.1 cube return 0; 78 1.1 cube } 79 1.1 cube 80 1.1 cube static int 81 1.1 cube netbsd32_kevent_put_events(void *private, struct kevent *events, 82 1.1 cube struct kevent *eventlist, size_t index, int n) 83 1.1 cube { 84 1.1 cube struct netbsd32_kevent *kev32, *events32 = private; 85 1.1 cube int i; 86 1.1 cube 87 1.1 cube for (i = 0, kev32 = events32; i < n; i++, kev32++, events++) 88 1.1 cube netbsd32_from_kevent(events, kev32); 89 1.1 cube kev32 = (struct netbsd32_kevent *)eventlist; 90 1.1 cube return copyout(events32, kev32, n * sizeof(*events32)); 91 1.1 cube } 92 1.1 cube 93 1.1 cube int 94 1.7 christos netbsd32___kevent50(struct lwp *l, 95 1.7 christos const struct netbsd32___kevent50_args *uap, register_t *retval) 96 1.1 cube { 97 1.4 dsl /* { 98 1.1 cube syscallarg(int) fd; 99 1.1 cube syscallarg(netbsd32_keventp_t) changelist; 100 1.1 cube syscallarg(netbsd32_size_t) nchanges; 101 1.1 cube syscallarg(netbsd32_keventp_t) eventlist; 102 1.1 cube syscallarg(netbsd32_size_t) nevents; 103 1.1 cube syscallarg(netbsd32_timespecp_t) timeout; 104 1.4 dsl } */ 105 1.1 cube int error; 106 1.1 cube size_t maxalloc, nchanges, nevents; 107 1.1 cube struct kevent_ops netbsd32_kevent_ops = { 108 1.9 joerg .keo_fetch_timeout = netbsd32_kevent_fetch_timeout, 109 1.9 joerg .keo_fetch_changes = netbsd32_kevent_fetch_changes, 110 1.9 joerg .keo_put_events = netbsd32_kevent_put_events, 111 1.1 cube }; 112 1.1 cube 113 1.1 cube nchanges = SCARG(uap, nchanges); 114 1.1 cube nevents = SCARG(uap, nevents); 115 1.1 cube maxalloc = MIN(KQ_NEVENTS, MAX(nchanges, nevents)); 116 1.1 cube netbsd32_kevent_ops.keo_private = 117 1.8 rmind kmem_alloc(maxalloc * sizeof(struct netbsd32_kevent), KM_SLEEP); 118 1.1 cube 119 1.5 ad error = kevent1(retval, SCARG(uap, fd), 120 1.1 cube NETBSD32PTR64(SCARG(uap, changelist)), nchanges, 121 1.1 cube NETBSD32PTR64(SCARG(uap, eventlist)), nevents, 122 1.1 cube NETBSD32PTR64(SCARG(uap, timeout)), &netbsd32_kevent_ops); 123 1.1 cube 124 1.8 rmind kmem_free(netbsd32_kevent_ops.keo_private, 125 1.8 rmind maxalloc * sizeof(struct netbsd32_kevent)); 126 1.1 cube return error; 127 1.1 cube } 128
Indexes created Mon Sep 22 05:09:51 GMT 2025