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Annotation of XNU/osfmk/kern/MKTiming.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /*
                     23:  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
                     24:  *
                     25:  * HISTORY
                     26:  *
                     27:  */
                     28: 
                     29: #include <mach/mach_types.h>
                     30: 
                     31: #include <kern/clock.h>
                     32: 
                     33: #include <mach/MKTraps.h>
                     34: 
                     35: void
                     36: MKGetTimeBaseInfo(
                     37:        UInt32*         minAbsoluteTimeDelta,
                     38:        UInt32*         theAbsoluteTimeToNanosecondNumerator,
                     39:        UInt32*         theAbsoluteTimeToNanosecondDenominator,
                     40:        UInt32*         theProcessorToAbsoluteTimeNumerator,
                     41:        UInt32*         theProcessorToAbsoluteTimeDenominator)
                     42: {
                     43:        UInt32          result[5];
                     44: 
                     45:        clock_get_timebase_info(
                     46:                                                &result[0],
                     47:                                                &result[1],     &result[2],
                     48:                                                &result[3],     &result[4]);
                     49: 
                     50:        copyout((void *)&result[0], (void *)minAbsoluteTimeDelta,
                     51:                sizeof (UInt32));
                     52: 
                     53:        copyout((void *)&result[1], (void *)theAbsoluteTimeToNanosecondNumerator,
                     54:                sizeof (UInt32));
                     55:        copyout((void *)&result[2], (void *)theAbsoluteTimeToNanosecondDenominator,
                     56:                sizeof (UInt32));
                     57: 
                     58:        copyout((void *)&result[3], (void *)theProcessorToAbsoluteTimeNumerator,
                     59:                sizeof (UInt32));
                     60:        copyout((void *)&result[4], (void *)theProcessorToAbsoluteTimeDenominator,
                     61:                sizeof (UInt32));
                     62: }

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