projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| f427ee49 A |
1 | /* |
| 2 | * Copyright (c) 2019 Apple Computer, 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 <mach/boolean.h> | |
| 30 | #include <mach/message.h> | |
| 31 | #include <mach/kern_return.h> | |
| 32 | #include <mach/mach_traps.h> | |
| 33 | #include <mach/mach_types.h> | |
| 34 | #include <mach/clock_types.h> | |
| 35 | #include <mach/mach_eventlink_types.h> | |
| 36 | ||
| 37 | /* | |
| 38 | * __mach_eventlink* calls are bsd syscalls instead of mach traps because | |
| 39 | * they need to return a 64 bit value in register and mach traps currently | |
| 40 | * does not allow 64 bit return values. | |
| 41 | */ | |
| 42 | uint64_t | |
| 43 | __mach_eventlink_signal( | |
| 44 | mach_port_t eventlink_port, | |
| 45 | uint64_t signal_count); | |
| 46 | ||
| 47 | uint64_t | |
| 48 | __mach_eventlink_wait_until( | |
| 49 | mach_port_t eventlink_port, | |
| 50 | uint64_t wait_signal_count, | |
| 51 | uint64_t deadline, | |
| 52 | kern_clock_id_t clock_id, | |
| 53 | mach_eventlink_signal_wait_option_t option); | |
| 54 | ||
| 55 | uint64_t | |
| 56 | __mach_eventlink_signal_wait_until( | |
| 57 | mach_port_t eventlink_port, | |
| 58 | uint64_t wait_count, | |
| 59 | uint64_t signal_count, | |
| 60 | uint64_t deadline, | |
| 61 | kern_clock_id_t clock_id, | |
| 62 | mach_eventlink_signal_wait_option_t option); | |
| 63 | ||
| 64 | kern_return_t | |
| 65 | mach_eventlink_signal( | |
| 66 | mach_port_t eventlink_port, | |
| 67 | uint64_t signal_count) | |
| 68 | { | |
| 69 | uint64_t retval = __mach_eventlink_signal(eventlink_port, signal_count); | |
| 70 | ||
| 71 | return decode_eventlink_error_from_retval(retval); | |
| 72 | } | |
| 73 | ||
| 74 | kern_return_t | |
| 75 | mach_eventlink_wait_until( | |
| 76 | mach_port_t eventlink_port, | |
| 77 | uint64_t *wait_count_ptr, | |
| 78 | mach_eventlink_signal_wait_option_t option, | |
| 79 | kern_clock_id_t clock_id, | |
| 80 | uint64_t deadline) | |
| 81 | { | |
| 82 | uint64_t retval; | |
| 83 | ||
| 84 | retval = __mach_eventlink_wait_until(eventlink_port, *wait_count_ptr, | |
| 85 | deadline, clock_id, option); | |
| 86 | ||
| 87 | *wait_count_ptr = decode_eventlink_count_from_retval(retval); | |
| 88 | return decode_eventlink_error_from_retval(retval); | |
| 89 | } | |
| 90 | ||
| 91 | kern_return_t | |
| 92 | mach_eventlink_signal_wait_until( | |
| 93 | mach_port_t eventlink_port, | |
| 94 | uint64_t *wait_count_ptr, | |
| 95 | uint64_t signal_count, | |
| 96 | mach_eventlink_signal_wait_option_t option, | |
| 97 | kern_clock_id_t clock_id, | |
| 98 | uint64_t deadline) | |
| 99 | { | |
| 100 | uint64_t retval; | |
| 101 | retval = __mach_eventlink_signal_wait_until(eventlink_port, *wait_count_ptr, | |
| 102 | signal_count, deadline, clock_id, option); | |
| 103 | *wait_count_ptr = decode_eventlink_count_from_retval(retval); | |
| 104 | return decode_eventlink_error_from_retval(retval); | |
| 105 | } |