netbsd32_event.c revision 1.4
1 1.4 dsl /* $NetBSD: netbsd32_event.c,v 1.4 2007/12/20 23:03:01 dsl 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 1.3 cube * 3. Neither the name of The NetBSD Foundation nor the names of its 16 1.1 cube * contributors may be used to endorse or promote products derived 17 1.1 cube * from this software without specific prior written permission. 18 1.1 cube * 19 1.1 cube * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.1 cube * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.1 cube * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.1 cube * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.1 cube * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.1 cube * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.1 cube * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1 cube * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.1 cube * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.1 cube * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.1 cube * POSSIBILITY OF SUCH DAMAGE. 30 1.1 cube */ 31 1.1 cube 32 1.1 cube #include <sys/cdefs.h> 33 1.4 dsl __KERNEL_RCSID(0, "$NetBSD: netbsd32_event.c,v 1.4 2007/12/20 23:03:01 dsl Exp $"); 34 1.1 cube 35 1.1 cube #include <sys/types.h> 36 1.1 cube #include <sys/param.h> 37 1.1 cube #include <sys/systm.h> 38 1.1 cube #include <sys/file.h> 39 1.1 cube #include <sys/filedesc.h> 40 1.1 cube #include <sys/select.h> 41 1.1 cube #include <sys/event.h> 42 1.1 cube #include <sys/eventvar.h> 43 1.1 cube #include <sys/malloc.h> 44 1.1 cube #include <sys/proc.h> 45 1.1 cube #include <sys/dirent.h> 46 1.1 cube 47 1.1 cube #include <compat/netbsd32/netbsd32.h> 48 1.1 cube #include <compat/netbsd32/netbsd32_syscall.h> 49 1.1 cube #include <compat/netbsd32/netbsd32_syscallargs.h> 50 1.1 cube #include <compat/netbsd32/netbsd32_conv.h> 51 1.1 cube 52 1.1 cube static int 53 1.1 cube netbsd32_kevent_fetch_timeout(const void *src, void *dest, size_t length) 54 1.1 cube { 55 1.1 cube struct netbsd32_timespec ts32; 56 1.1 cube int error; 57 1.1 cube 58 1.1 cube KASSERT(length == sizeof(struct timespec)); 59 1.1 cube 60 1.1 cube error = copyin(src, &ts32, sizeof(ts32)); 61 1.1 cube if (error) 62 1.1 cube return error; 63 1.1 cube netbsd32_to_timespec(&ts32, (struct timespec *)dest); 64 1.1 cube return 0; 65 1.1 cube } 66 1.1 cube 67 1.1 cube static int 68 1.1 cube netbsd32_kevent_fetch_changes(void *private, const struct kevent *changelist, 69 1.1 cube struct kevent *changes, size_t index, int n) 70 1.1 cube { 71 1.1 cube const struct netbsd32_kevent *src = 72 1.1 cube (const struct netbsd32_kevent *)changelist; 73 1.1 cube struct netbsd32_kevent *kev32, *changes32 = private; 74 1.1 cube int error, i; 75 1.1 cube 76 1.1 cube error = copyin(src + index, changes32, n * sizeof(*changes32)); 77 1.1 cube if (error) 78 1.1 cube return error; 79 1.1 cube for (i = 0, kev32 = changes32; i < n; i++, kev32++, changes++) 80 1.1 cube netbsd32_to_kevent(kev32, changes); 81 1.1 cube return 0; 82 1.1 cube } 83 1.1 cube 84 1.1 cube static int 85 1.1 cube netbsd32_kevent_put_events(void *private, struct kevent *events, 86 1.1 cube struct kevent *eventlist, size_t index, int n) 87 1.1 cube { 88 1.1 cube struct netbsd32_kevent *kev32, *events32 = private; 89 1.1 cube int i; 90 1.1 cube 91 1.1 cube for (i = 0, kev32 = events32; i < n; i++, kev32++, events++) 92 1.1 cube netbsd32_from_kevent(events, kev32); 93 1.1 cube kev32 = (struct netbsd32_kevent *)eventlist; 94 1.1 cube return copyout(events32, kev32, n * sizeof(*events32)); 95 1.1 cube } 96 1.1 cube 97 1.1 cube int 98 1.4 dsl netbsd32_kevent(struct lwp *l, const struct netbsd32_kevent_args *uap, register_t *retval) 99 1.1 cube { 100 1.4 dsl /* { 101 1.1 cube syscallarg(int) fd; 102 1.1 cube syscallarg(netbsd32_keventp_t) changelist; 103 1.1 cube syscallarg(netbsd32_size_t) nchanges; 104 1.1 cube syscallarg(netbsd32_keventp_t) eventlist; 105 1.1 cube syscallarg(netbsd32_size_t) nevents; 106 1.1 cube syscallarg(netbsd32_timespecp_t) timeout; 107 1.4 dsl } */ 108 1.1 cube int error; 109 1.1 cube size_t maxalloc, nchanges, nevents; 110 1.1 cube struct kevent_ops netbsd32_kevent_ops = { 111 1.1 cube keo_fetch_timeout: netbsd32_kevent_fetch_timeout, 112 1.1 cube keo_fetch_changes: netbsd32_kevent_fetch_changes, 113 1.1 cube keo_put_events: netbsd32_kevent_put_events, 114 1.1 cube }; 115 1.1 cube 116 1.1 cube nchanges = SCARG(uap, nchanges); 117 1.1 cube nevents = SCARG(uap, nevents); 118 1.1 cube maxalloc = MIN(KQ_NEVENTS, MAX(nchanges, nevents)); 119 1.1 cube netbsd32_kevent_ops.keo_private = 120 1.1 cube malloc(maxalloc * sizeof(struct netbsd32_kevent), M_TEMP, 121 1.1 cube M_WAITOK); 122 1.1 cube 123 1.1 cube error = kevent1(l, retval, SCARG(uap, fd), 124 1.1 cube NETBSD32PTR64(SCARG(uap, changelist)), nchanges, 125 1.1 cube NETBSD32PTR64(SCARG(uap, eventlist)), nevents, 126 1.1 cube NETBSD32PTR64(SCARG(uap, timeout)), &netbsd32_kevent_ops); 127 1.1 cube 128 1.1 cube free(netbsd32_kevent_ops.keo_private, M_TEMP); 129 1.1 cube return error; 130 1.1 cube } 131
Indexes created Mon Sep 22 21:09:42 GMT 2025