xref: /xnu-8796.141.3/bsd/kern/sys_eventlink.c (revision 1b191cb58250d0705d8a51287127505aa4bc0789)
1*1b191cb5SApple OSS Distributions /*
2*1b191cb5SApple OSS Distributions  * Copyright (c) 2000-2019 Apple Inc. All rights reserved.
3*1b191cb5SApple OSS Distributions  *
4*1b191cb5SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*1b191cb5SApple OSS Distributions  *
6*1b191cb5SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*1b191cb5SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*1b191cb5SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*1b191cb5SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*1b191cb5SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*1b191cb5SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*1b191cb5SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*1b191cb5SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*1b191cb5SApple OSS Distributions  *
15*1b191cb5SApple OSS Distributions  * Please obtain a copy of the License at
16*1b191cb5SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*1b191cb5SApple OSS Distributions  *
18*1b191cb5SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*1b191cb5SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*1b191cb5SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*1b191cb5SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*1b191cb5SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*1b191cb5SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*1b191cb5SApple OSS Distributions  * limitations under the License.
25*1b191cb5SApple OSS Distributions  *
26*1b191cb5SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*1b191cb5SApple OSS Distributions  */
28*1b191cb5SApple OSS Distributions 
29*1b191cb5SApple OSS Distributions #include <sys/param.h>
30*1b191cb5SApple OSS Distributions #include <sys/kernel.h>
31*1b191cb5SApple OSS Distributions #include <sys/kernel_types.h>
32*1b191cb5SApple OSS Distributions #include <sys/sysproto.h>
33*1b191cb5SApple OSS Distributions #include <mach/mach_types.h>
34*1b191cb5SApple OSS Distributions #include <mach/mach_eventlink_types.h>
35*1b191cb5SApple OSS Distributions 
36*1b191cb5SApple OSS Distributions extern uint64_t
37*1b191cb5SApple OSS Distributions mach_eventlink_signal_trap(
38*1b191cb5SApple OSS Distributions 	mach_port_name_t port,
39*1b191cb5SApple OSS Distributions 	uint64_t         signal_count __unused);
40*1b191cb5SApple OSS Distributions 
41*1b191cb5SApple OSS Distributions extern uint64_t
42*1b191cb5SApple OSS Distributions mach_eventlink_wait_until_trap(
43*1b191cb5SApple OSS Distributions 	mach_port_name_t                    eventlink_port,
44*1b191cb5SApple OSS Distributions 	uint64_t                            wait_count,
45*1b191cb5SApple OSS Distributions 	mach_eventlink_signal_wait_option_t option,
46*1b191cb5SApple OSS Distributions 	kern_clock_id_t                     clock_id,
47*1b191cb5SApple OSS Distributions 	uint64_t                            deadline);
48*1b191cb5SApple OSS Distributions 
49*1b191cb5SApple OSS Distributions extern uint64_t
50*1b191cb5SApple OSS Distributions mach_eventlink_signal_wait_until_trap(
51*1b191cb5SApple OSS Distributions 	mach_port_name_t                    eventlink_port,
52*1b191cb5SApple OSS Distributions 	uint64_t                            wait_count,
53*1b191cb5SApple OSS Distributions 	uint64_t                            signal_count __unused,
54*1b191cb5SApple OSS Distributions 	mach_eventlink_signal_wait_option_t option,
55*1b191cb5SApple OSS Distributions 	kern_clock_id_t                     clock_id,
56*1b191cb5SApple OSS Distributions 	uint64_t                            deadline);
57*1b191cb5SApple OSS Distributions 
58*1b191cb5SApple OSS Distributions int
mach_eventlink_signal(__unused proc_t p,struct mach_eventlink_signal_args * uap,uint64_t * retval)59*1b191cb5SApple OSS Distributions mach_eventlink_signal(
60*1b191cb5SApple OSS Distributions 	__unused proc_t p,
61*1b191cb5SApple OSS Distributions 	struct mach_eventlink_signal_args *uap,
62*1b191cb5SApple OSS Distributions 	uint64_t *retval)
63*1b191cb5SApple OSS Distributions {
64*1b191cb5SApple OSS Distributions 	*retval = mach_eventlink_signal_trap(uap->eventlink_port, uap->signal_count);
65*1b191cb5SApple OSS Distributions 	return 0;
66*1b191cb5SApple OSS Distributions }
67*1b191cb5SApple OSS Distributions 
68*1b191cb5SApple OSS Distributions int
mach_eventlink_wait_until(__unused proc_t p,struct mach_eventlink_wait_until_args * uap,uint64_t * retval)69*1b191cb5SApple OSS Distributions mach_eventlink_wait_until(
70*1b191cb5SApple OSS Distributions 	__unused proc_t p,
71*1b191cb5SApple OSS Distributions 	struct mach_eventlink_wait_until_args *uap,
72*1b191cb5SApple OSS Distributions 	uint64_t *retval)
73*1b191cb5SApple OSS Distributions {
74*1b191cb5SApple OSS Distributions 	*retval = mach_eventlink_wait_until_trap(uap->eventlink_port, uap->wait_count,
75*1b191cb5SApple OSS Distributions 	    uap->option, uap->clock_id, uap->deadline);
76*1b191cb5SApple OSS Distributions 	return 0;
77*1b191cb5SApple OSS Distributions }
78*1b191cb5SApple OSS Distributions 
79*1b191cb5SApple OSS Distributions int
mach_eventlink_signal_wait_until(__unused proc_t p,struct mach_eventlink_signal_wait_until_args * uap,uint64_t * retval)80*1b191cb5SApple OSS Distributions mach_eventlink_signal_wait_until(
81*1b191cb5SApple OSS Distributions 	__unused proc_t p,
82*1b191cb5SApple OSS Distributions 	struct mach_eventlink_signal_wait_until_args *uap,
83*1b191cb5SApple OSS Distributions 	uint64_t *retval)
84*1b191cb5SApple OSS Distributions {
85*1b191cb5SApple OSS Distributions 	*retval = mach_eventlink_signal_wait_until_trap(uap->eventlink_port, uap->wait_count,
86*1b191cb5SApple OSS Distributions 	    uap->signal_count, uap->option, uap->clock_id, uap->deadline);
87*1b191cb5SApple OSS Distributions 	return 0;
88*1b191cb5SApple OSS Distributions }
89