136 lines
3.9 KiB
C
136 lines
3.9 KiB
C
/* $NetBSD: mach_clock.c,v 1.19 2008/04/28 20:23:44 martin Exp $ */
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/*-
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* Copyright (c) 2002-2003 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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mach_clock.c,v 1.19 2008/04/28 20:23:44 martin Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/signal.h>
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#include <sys/proc.h>
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#include <sys/time.h>
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#include <compat/mach/mach_types.h>
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#include <compat/mach/mach_message.h>
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#include <compat/mach/mach_port.h>
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#include <compat/mach/mach_clock.h>
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#include <compat/mach/mach_services.h>
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#include <compat/mach/mach_syscallargs.h>
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int
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mach_sys_clock_sleep_trap(struct lwp *l, const struct mach_sys_clock_sleep_trap_args *uap, register_t *retval)
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{
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/* {
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syscallarg(mach_clock_port_t) clock_name;
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syscallarg(mach_sleep_type_t) sleep_type;
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syscallarg(int) sleep_sec;
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syscallarg(int) sleep_nsec;
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syscallarg(mach_timespec_t *) wakeup_time;
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} */
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struct timespec mts, cts, tts;
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mach_timespec_t mcts;
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int dontcare;
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int error;
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int ticks;
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mts.tv_sec = SCARG(uap, sleep_sec);
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mts.tv_nsec = SCARG(uap, sleep_nsec);
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if (SCARG(uap, sleep_type) == MACH_TIME_ABSOLUTE) {
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nanotime(&cts);
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timespecsub(&mts, &cts, &tts);
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} else {
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tts.tv_sec = mts.tv_sec;
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tts.tv_nsec = mts.tv_nsec;
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}
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ticks = tts.tv_sec * hz;
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ticks += (tts.tv_nsec * hz) / 100000000L;
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tsleep(&dontcare, PZERO|PCATCH, "sleep", ticks);
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if (SCARG(uap, wakeup_time) != NULL) {
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nanotime(&cts);
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mcts.tv_sec = cts.tv_sec;
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mcts.tv_nsec = cts.tv_nsec;
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error = copyout(&mcts, SCARG(uap, wakeup_time), sizeof(mcts));
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if (error != 0)
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return error;
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}
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return 0;
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}
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int
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mach_sys_timebase_info(struct lwp *l, const struct mach_sys_timebase_info_args *uap, register_t *retval)
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{
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/* {
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syscallarg(mach_timebase_info_t) info;
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} */
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int error;
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struct mach_timebase_info info;
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/* XXX This is probably bus speed, fill it accurately */
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info.numer = 4000000000UL;
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info.denom = 75189611UL;
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if ((error = copyout(&info, (void *)SCARG(uap, info),
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sizeof(info))) != 0)
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return error;
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return 0;
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}
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int
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mach_clock_get_time(struct mach_trap_args *args)
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{
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mach_clock_get_time_request_t *req = args->smsg;
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mach_clock_get_time_reply_t *rep = args->rmsg;
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size_t *msglen = args->rsize;
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struct timeval tv;
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microtime(&tv);
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*msglen = sizeof(*rep);
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mach_set_header(rep, req, *msglen);
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rep->rep_cur_time.tv_sec = tv.tv_sec;
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rep->rep_cur_time.tv_nsec = tv.tv_usec * 1000;
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mach_set_trailer(rep, *msglen);
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return 0;
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}
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