libkern/libkern/OSTypes.h

   1 /*
   2  * Copyright (c) 2000 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  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  30  *
  31  * HISTORY
  32  *
  33  */
  34
  35 #ifndef _OS_OSTYPES_H
  36 #define _OS_OSTYPES_H
  37
  38 #define OSTYPES_K64_REV         2
  39
  40 typedef unsigned int       UInt;
  41 typedef signed int         SInt;
  42
  43 #ifndef __MACTYPES__    /* CF MacTypes.h */
  44 #ifndef __TYPES__       /* guess... Mac Types.h */
  45
  46 typedef unsigned char      UInt8;
  47 typedef unsigned short     UInt16;
  48 #if __LP64__
  49 typedef unsigned int       UInt32;
  50 #else
  51 typedef unsigned long      UInt32;
  52 #endif
  53 typedef unsigned long long UInt64;
  54 #if             defined(__BIG_ENDIAN__)
  55 typedef struct UnsignedWide {
  56                         UInt32          hi;
  57                         UInt32          lo;
  58 }                                                       UnsignedWide;
  59 #elif           defined(__LITTLE_ENDIAN__)
  60 typedef struct UnsignedWide {
  61                         UInt32          lo;
  62                         UInt32          hi;
  63 }                                                       UnsignedWide;
  64 #else
  65 #error Unknown endianess.
  66 #endif
  67
  68 typedef signed char        SInt8;
  69 typedef signed short       SInt16;
  70 #if __LP64__
  71 typedef signed int         SInt32;
  72 #else
  73 typedef signed long        SInt32;
  74 #endif
  75 typedef signed long long   SInt64;
  76 #if             defined(__BIG_ENDIAN__)
  77 typedef struct wide {
  78                         SInt32          hi;
  79                         UInt32          lo;
  80 }                                                       wide;
  81 #elif           defined(__LITTLE_ENDIAN__)
  82 typedef struct wide {
  83                         UInt32          lo;
  84                         SInt32          hi;
  85 }                                                       wide;
  86 #else
  87 #error Unknown endianess.
  88 #endif
  89
  90 typedef SInt32                          OSStatus;
  91
  92 #if (defined(__LP64__) || defined (__arm__)) && defined(KERNEL)
  93 #ifndef ABSOLUTETIME_SCALAR_TYPE
  94 #define ABSOLUTETIME_SCALAR_TYPE    1
  95 #endif
  96 typedef UInt64          AbsoluteTime;
  97 #else
  98 typedef UnsignedWide            AbsoluteTime;
  99 #endif
 100
 101 typedef UInt32                          OptionBits;
 102
 103 #if defined(KERNEL) && defined(__LP64__)
 104 /*
 105  * Use intrinsic boolean types for the LP64 kernel, otherwise maintain
 106  * source and binary backward compatibility.  This attempts to resolve
 107  * the "(x == true)" vs. "(x)" conditional issue.
 108  */
 109 #ifdef __cplusplus
 110 typedef bool Boolean;
 111 #else   /* !__cplusplus */
 112 #if defined(__STDC_VERSION__) && ((__STDC_VERSION__ - 199901L) > 0L)
 113 /* only use this if we are sure we are using a c99 compiler */
 114 typedef _Bool Boolean;
 115 #else   /* !c99 */
 116 /* Fall back to previous definition unless c99 */
 117 typedef unsigned char Boolean;
 118 #endif  /* !c99 */
 119 #endif  /* !__cplusplus */
 120 #else   /* !(KERNEL && __LP64__) */
 121 typedef unsigned char Boolean;
 122 #endif  /* !(KERNEL && __LP64__) */
 123
 124 #endif /* __TYPES__ */
 125 #endif /* __MACTYPES__ */
 126
 127 #if !defined(OS_INLINE)
 128 #       define OS_INLINE static inline
 129 #endif
 130
 131 #endif /* _OS_OSTYPES_H */