netbsd32_event.c revision 1.7
1 1.7 christos /* $NetBSD: netbsd32_event.c,v 1.7 2009/01/11 02:45:49 christos 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 1.7 christos __KERNEL_RCSID(0, "$NetBSD: netbsd32_event.c,v 1.7 2009/01/11 02:45:49 christos 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/malloc.h> 41 1.1 cube #include <sys/proc.h> 42 1.1 cube #include <sys/dirent.h> 43 1.1 cube 44 1.1 cube #include <compat/netbsd32/netbsd32.h> 45 1.1 cube #include <compat/netbsd32/netbsd32_syscall.h> 46 1.1 cube #include <compat/netbsd32/netbsd32_syscallargs.h> 47 1.1 cube #include <compat/netbsd32/netbsd32_conv.h> 48 1.1 cube 49 1.1 cube static int 50 1.1 cube netbsd32_kevent_fetch_timeout(const void *src, void *dest, size_t length) 51 1.1 cube { 52 1.1 cube struct netbsd32_timespec ts32; 53 1.1 cube int error; 54 1.1 cube 55 1.1 cube KASSERT(length == sizeof(struct timespec)); 56 1.1 cube 57 1.1 cube error = copyin(src, &ts32, sizeof(ts32)); 58 1.1 cube if (error) 59 1.1 cube return error; 60 1.1 cube netbsd32_to_timespec(&ts32, (struct timespec *)dest); 61 1.1 cube return 0; 62 1.1 cube } 63 1.1 cube 64 1.1 cube static int 65 1.1 cube netbsd32_kevent_fetch_changes(void *private, const struct kevent *changelist, 66 1.1 cube struct kevent *changes, size_t index, int n) 67 1.1 cube { 68 1.1 cube const struct netbsd32_kevent *src = 69 1.1 cube (const struct netbsd32_kevent *)changelist; 70 1.1 cube struct netbsd32_kevent *kev32, *changes32 = private; 71 1.1 cube int error, i; 72 1.1 cube 73 1.1 cube error = copyin(src + index, changes32, n * sizeof(*changes32)); 74 1.1 cube if (error) 75 1.1 cube return error; 76 1.1 cube for (i = 0, kev32 = changes32; i < n; i++, kev32++, changes++) 77 1.1 cube netbsd32_to_kevent(kev32, changes); 78 1.1 cube return 0; 79 1.1 cube } 80 1.1 cube 81 1.1 cube static int 82 1.1 cube netbsd32_kevent_put_events(void *private, struct kevent *events, 83 1.1 cube struct kevent *eventlist, size_t index, int n) 84 1.1 cube { 85 1.1 cube struct netbsd32_kevent *kev32, *events32 = private; 86 1.1 cube int i; 87 1.1 cube 88 1.1 cube for (i = 0, kev32 = events32; i < n; i++, kev32++, events++) 89 1.1 cube netbsd32_from_kevent(events, kev32); 90 1.1 cube kev32 = (struct netbsd32_kevent *)eventlist; 91 1.1 cube return copyout(events32, kev32, n * sizeof(*events32)); 92 1.1 cube } 93 1.1 cube 94 1.1 cube int 95 1.7 christos netbsd32___kevent50(struct lwp *l, 96 1.7 christos const struct netbsd32___kevent50_args *uap, register_t *retval) 97 1.1 cube { 98 1.4 dsl /* { 99 1.1 cube syscallarg(int) fd; 100 1.1 cube syscallarg(netbsd32_keventp_t) changelist; 101 1.1 cube syscallarg(netbsd32_size_t) nchanges; 102 1.1 cube syscallarg(netbsd32_keventp_t) eventlist; 103 1.1 cube syscallarg(netbsd32_size_t) nevents; 104 1.1 cube syscallarg(netbsd32_timespecp_t) timeout; 105 1.4 dsl } */ 106 1.1 cube int error; 107 1.1 cube size_t maxalloc, nchanges, nevents; 108 1.1 cube struct kevent_ops netbsd32_kevent_ops = { 109 1.1 cube keo_fetch_timeout: netbsd32_kevent_fetch_timeout, 110 1.1 cube keo_fetch_changes: netbsd32_kevent_fetch_changes, 111 1.1 cube keo_put_events: netbsd32_kevent_put_events, 112 1.1 cube }; 113 1.1 cube 114 1.1 cube nchanges = SCARG(uap, nchanges); 115 1.1 cube nevents = SCARG(uap, nevents); 116 1.1 cube maxalloc = MIN(KQ_NEVENTS, MAX(nchanges, nevents)); 117 1.1 cube netbsd32_kevent_ops.keo_private = 118 1.1 cube malloc(maxalloc * sizeof(struct netbsd32_kevent), M_TEMP, 119 1.1 cube M_WAITOK); 120 1.1 cube 121 1.5 ad error = kevent1(retval, SCARG(uap, fd), 122 1.1 cube NETBSD32PTR64(SCARG(uap, changelist)), nchanges, 123 1.1 cube NETBSD32PTR64(SCARG(uap, eventlist)), nevents, 124 1.1 cube NETBSD32PTR64(SCARG(uap, timeout)), &netbsd32_kevent_ops); 125 1.1 cube 126 1.1 cube free(netbsd32_kevent_ops.keo_private, M_TEMP); 127 1.1 cube return error; 128 1.1 cube } 129
Indexes created Thu Sep 25 02:09:54 GMT 2025