projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 224c7076 A |
1 | /* |
| 2 | * Copyright (c) 2007 Apple Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_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. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 24 | #include <mach/kern_return.h> | |
| 25 | #include <mach/mach_time.h> | |
| 26 | #include <stdint.h> | |
| 27 | ||
| 28 | extern void spin_lock(int *); | |
| 29 | extern void spin_unlock(int *); | |
| 30 | ||
| 31 | /* deprecated function stub */ | |
| 32 | kern_return_t | |
| 33 | MKGetTimeBaseInfo( | |
| 34 | uint32_t *minAbsoluteTimeDelta, | |
| 35 | uint32_t *theAbsoluteTimeToNanosecondNumerator, | |
| 36 | uint32_t *theAbsoluteTimeToNanosecondDenominator, | |
| 37 | uint32_t *theProcessorToAbsoluteTimeNumerator, | |
| 38 | uint32_t *theProcessorToAbsoluteTimeDenominator | |
| 39 | ) { | |
| 40 | static struct mach_timebase_info mti = {0}; | |
| 41 | static int MKGetTimeBaseInfo_spin_lock = 0; | |
| 42 | ||
| 43 | if(mti.numer == 0) { | |
| 44 | kern_return_t err; | |
| 45 | spin_lock(&MKGetTimeBaseInfo_spin_lock); | |
| 46 | err = mach_timebase_info(&mti); | |
| 47 | spin_unlock(&MKGetTimeBaseInfo_spin_lock); | |
| 48 | if(err != KERN_SUCCESS) | |
| 49 | return err; | |
| 50 | } | |
| 51 | if(theAbsoluteTimeToNanosecondNumerator) | |
| 52 | *theAbsoluteTimeToNanosecondNumerator = mti.numer; | |
| 53 | if(theAbsoluteTimeToNanosecondDenominator) | |
| 54 | *theAbsoluteTimeToNanosecondDenominator = mti.denom; | |
| 55 | if(minAbsoluteTimeDelta) | |
| 56 | *minAbsoluteTimeDelta = 1; | |
| 57 | if(theProcessorToAbsoluteTimeNumerator) | |
| 58 | *theProcessorToAbsoluteTimeNumerator = 1; | |
| 59 | if(theProcessorToAbsoluteTimeDenominator) | |
| 60 | *theProcessorToAbsoluteTimeDenominator = 1; | |
| 61 | return KERN_SUCCESS; | |
| 62 | } |