e0cc03a09b
kqueue provides a stateful and efficient event notification framework currently supported events include socket, file, directory, fifo, pipe, tty and device changes, and monitoring of processes and signals kqueue is supported by all writable filesystems in NetBSD tree (with exception of Coda) and all device drivers supporting poll(2) based on work done by Jonathan Lemon for FreeBSD initial NetBSD port done by Luke Mewburn and Jason Thorpe
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
/* $NetBSD: clockctl.c,v 1.9 2002/10/23 09:13:00 jdolecek Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: clockctl.c,v 1.9 2002/10/23 09:13:00 jdolecek Exp $");
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#include "opt_ntp.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/time.h>
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#include <sys/conf.h>
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#ifdef NTP
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#include <sys/timex.h>
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#endif /* NTP */
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#include <sys/clockctl.h>
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struct clockctl_softc {
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struct device clockctl_dev;
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};
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dev_type_ioctl(clockctlioctl);
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const struct cdevsw clockctl_cdevsw = {
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nullopen, nullclose, noread, nowrite, clockctlioctl,
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nostop, notty, nopoll, nommap, nokqfilter,
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};
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void
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clockctlattach(parent, self, aux)
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struct device *self;
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struct device *parent;
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void *aux;
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{
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/* Nothing to set up before open is called */
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return;
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}
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int
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clockctlioctl(dev, cmd, data, flags, p)
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dev_t dev;
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u_long cmd;
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caddr_t data;
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int flags;
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struct proc *p;
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{
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int error = 0;
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switch (cmd) {
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case CLOCKCTL_SETTIMEOFDAY: {
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struct sys_settimeofday_args *args =
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(struct sys_settimeofday_args *)data;
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error = settimeofday1(SCARG(args, tv),
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SCARG(args, tzp), p);
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if (error)
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return (error);
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break;
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}
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case CLOCKCTL_ADJTIME: {
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struct sys_adjtime_args *args =
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(struct sys_adjtime_args *)data;
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error = adjtime1(SCARG(args, delta),
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SCARG(args, olddelta), p);
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if (error)
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return (error);
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break;
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}
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case CLOCKCTL_CLOCK_SETTIME: {
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struct sys_clock_settime_args *args =
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(struct sys_clock_settime_args *)data;
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error = clock_settime1(SCARG(args, clock_id),
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SCARG(args, tp));
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if (error)
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return (error);
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break;
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}
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#ifdef NTP
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case CLOCKCTL_NTP_ADJTIME: {
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struct clockctl_ntp_adjtime_args *args =
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(struct clockctl_ntp_adjtime_args *)data;
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struct timex ntv;
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error = copyin((caddr_t)SCARG(args,uas.tp),
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(caddr_t)&ntv, sizeof(ntv));
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if (error)
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return (error);
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error = ntp_adjtime1(&ntv, args, &args->retval);
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return (error);
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}
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#endif /* NTP */
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default:
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error = EINVAL;
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}
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return (error);
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}
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