1 /* $NetBSD: kern_time_60.c,v 1.1 2013/03/29 01:02:50 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: kern_time_60.c,v 1.1 2013/03/29 01:02:50 christos Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/lwp.h> 37 #include <sys/time.h> 38 #include <sys/sysctl.h> 39 #include <sys/syscallargs.h> 40 41 #include <compat/common/compat_util.h> 42 #include <compat/common/compat_mod.h> 43 44 int 45 compat_60_sys__lwp_park(struct lwp *l, 46 const struct compat_60_sys__lwp_park_args *uap, register_t *retval) 47 { 48 /* { 49 syscallarg(const struct timespec *) ts; 50 syscallarg(lwpid_t) unpark; 51 syscallarg(const void *) hint; 52 syscallarg(const void *) unparkhint; 53 } */ 54 55 int error; 56 struct timespec ts, *tsp; 57 58 if (SCARG(uap, ts) == NULL) 59 tsp = NULL; 60 else { 61 error = copyin(SCARG(uap, ts), &ts, sizeof(ts)); 62 if (error != 0) 63 return error; 64 tsp = &ts; 65 } 66 67 if (SCARG(uap, unpark) != 0) { 68 error = lwp_unpark(SCARG(uap, unpark), SCARG(uap, unparkhint)); 69 if (error != 0) 70 return error; 71 } 72 73 return lwp_park(CLOCK_REALTIME, TIMER_ABSTIME, tsp, SCARG(uap, hint)); 74 } 75