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kern_time_60.c revision 1.1 
      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