osfmk/mach/mach_time.h

   1 /*
   2  * Copyright (c) 2001 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 2001 Apple Computer, Inc.  All rights reserved.
  27  *
  28  * HISTORY
  29  *
  30  * 30 January 2001 (debo)
  31  *  Created.
  32  */
  33
  34 #ifndef _MACH_MACH_TIME_H_
  35 #define _MACH_MACH_TIME_H_
  36
  37 #include <mach/mach_types.h>
  38
  39 uint64_t                        mach_absolute_time(void);
  40
  41 kern_return_t           mach_wait_until(
  42                                                 uint64_t                deadline);
  43
  44 struct mach_timebase_info {
  45         uint32_t        numer;
  46         uint32_t        denom;
  47 };
  48
  49 typedef struct mach_timebase_info       *mach_timebase_info_t;
  50 typedef struct mach_timebase_info       mach_timebase_info_data_t;
  51
  52 kern_return_t           mach_timebase_info(
  53                                                 mach_timebase_info_t    info);
  54
  55 #endif /* _MACH_MACH_TIME_H_ */