1 /* 2 * Copyright (c) 2001-2005 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 #ifndef _MACH_MACH_TIME_H_ 30 #define _MACH_MACH_TIME_H_ 31 32 #include <mach/mach_types.h> 33 #include <sys/cdefs.h> 34 #include <Availability.h> 35 36 struct mach_timebase_info { 37 uint32_t numer; 38 uint32_t denom; 39 }; 40 41 typedef struct mach_timebase_info *mach_timebase_info_t; 42 typedef struct mach_timebase_info mach_timebase_info_data_t; 43 44 __BEGIN_DECLS 45 #ifndef KERNEL 46 47 kern_return_t mach_timebase_info( 48 mach_timebase_info_t info); 49 50 kern_return_t mach_wait_until( 51 uint64_t deadline); 52 53 #endif /* KERNEL */ 54 55 uint64_t mach_absolute_time(void); 56 57 #ifndef KERNEL 58 __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0) 59 #endif 60 uint64_t mach_approximate_time(void); 61 62 /* 63 * like mach_absolute_time, but advances during sleep 64 */ 65 #ifndef KERNEL 66 __OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0) __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0) 67 #endif 68 uint64_t mach_continuous_time(void); 69 70 /* 71 * like mach_approximate_time, but advances during sleep 72 */ 73 #ifndef KERNEL 74 __OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0) __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0) 75 #endif 76 uint64_t mach_continuous_approximate_time(void); 77 78 /* 79 * variant of mach_continuous_time that uses speculative timebase 80 */ 81 #ifdef KERNEL 82 uint64_t mach_continuous_speculative_time(void); 83 #endif 84 85 __END_DECLS 86 87 #ifdef PRIVATE 88 #include <mach/mach_time_private.h> 89 #endif 90 91 #endif /* _MACH_MACH_TIME_H_ */ 92