xref: /xnu-10002.61.3/bsd/kern/sys_eventlink.c (revision 0f4c859e951fba394238ab619495c4e1d54d0f34)
1 /*
2  * Copyright (c) 2000-2019 Apple Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 
29 #include <sys/param.h>
30 #include <sys/kernel.h>
31 #include <sys/kernel_types.h>
32 #include <sys/sysproto.h>
33 #include <mach/mach_types.h>
34 #include <mach/mach_eventlink_types.h>
35 
36 extern uint64_t
37 mach_eventlink_signal_trap(
38 	mach_port_name_t port,
39 	uint64_t         signal_count __unused);
40 
41 extern uint64_t
42 mach_eventlink_wait_until_trap(
43 	mach_port_name_t                    eventlink_port,
44 	uint64_t                            wait_count,
45 	mach_eventlink_signal_wait_option_t option,
46 	kern_clock_id_t                     clock_id,
47 	uint64_t                            deadline);
48 
49 extern uint64_t
50 mach_eventlink_signal_wait_until_trap(
51 	mach_port_name_t                    eventlink_port,
52 	uint64_t                            wait_count,
53 	uint64_t                            signal_count __unused,
54 	mach_eventlink_signal_wait_option_t option,
55 	kern_clock_id_t                     clock_id,
56 	uint64_t                            deadline);
57 
58 int
mach_eventlink_signal(__unused proc_t p,struct mach_eventlink_signal_args * uap,uint64_t * retval)59 mach_eventlink_signal(
60 	__unused proc_t p,
61 	struct mach_eventlink_signal_args *uap,
62 	uint64_t *retval)
63 {
64 	*retval = mach_eventlink_signal_trap(uap->eventlink_port, uap->signal_count);
65 	return 0;
66 }
67 
68 int
mach_eventlink_wait_until(__unused proc_t p,struct mach_eventlink_wait_until_args * uap,uint64_t * retval)69 mach_eventlink_wait_until(
70 	__unused proc_t p,
71 	struct mach_eventlink_wait_until_args *uap,
72 	uint64_t *retval)
73 {
74 	*retval = mach_eventlink_wait_until_trap(uap->eventlink_port, uap->wait_count,
75 	    uap->option, uap->clock_id, uap->deadline);
76 	return 0;
77 }
78 
79 int
mach_eventlink_signal_wait_until(__unused proc_t p,struct mach_eventlink_signal_wait_until_args * uap,uint64_t * retval)80 mach_eventlink_signal_wait_until(
81 	__unused proc_t p,
82 	struct mach_eventlink_signal_wait_until_args *uap,
83 	uint64_t *retval)
84 {
85 	*retval = mach_eventlink_signal_wait_until_trap(uap->eventlink_port, uap->wait_count,
86 	    uap->signal_count, uap->option, uap->clock_id, uap->deadline);
87 	return 0;
88 }
89