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annotate packages/kernel/current/include/ktypes.h @ 64:c38311975d4f ecos-sw-2000-01-28
Merge from eCos master repository on 2000-01-28-04:28:11-GMT
| author | jlarmour |
|---|---|
| date | Fri, 28 Jan 2000 04:59:39 +0000 |
| parents | 443894e2e912 |
| children | bf00f99aec69 |
| rev | line source |
|---|---|
| 0 | 1 #ifndef CYGONCE_KERNEL_KTYPES_H |
| 2 #define CYGONCE_KERNEL_KTYPES_H | |
| 3 | |
| 4 //========================================================================== | |
| 5 // | |
| 2 | 6 // ktypes.h |
| 0 | 7 // |
| 2 | 8 // Standard types used in the kernel and its interfaces |
| 0 | 9 // |
| 10 //========================================================================== | |
| 11 //####COPYRIGHTBEGIN#### | |
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12 // |
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13 // ------------------------------------------- |
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14 // The contents of this file are subject to the Red Hat eCos Public License |
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15 // Version 1.0 (the "License"); you may not use this file except in |
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16 // compliance with the License. You may obtain a copy of the License at |
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17 // http://sourceware.cygnus.com/ecos |
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18 // |
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19 // Software distributed under the License is distributed on an |
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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21 // License for the specific language governing rights and limitations under |
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22 // the License. |
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23 // |
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24 // The Original Code is eCos - Embedded Configurable Operating System, |
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25 // released September 30, 1998. |
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26 // |
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27 // The Initial Developer of the Original Code is Red Hat. |
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28 // Portions created by Red Hat are |
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29 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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30 // All Rights Reserved. |
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31 // ------------------------------------------- |
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32 // |
| 0 | 33 //####COPYRIGHTEND#### |
| 34 //========================================================================== | |
| 35 //#####DESCRIPTIONBEGIN#### | |
| 36 // | |
| 37 // Author(s): nickg from an original by hmt | |
| 38 // Contributors: nickg | |
| 39 // Date: 1997-09-08 | |
| 40 // Purpose: Define kernel specific types | |
| 2 | 41 // Description: Kernel specific types |
| 0 | 42 // Usage: #include <cyg/kernel/ktypes.h> |
| 2 | 43 // ... |
| 44 // cyg_priority priority; // etc | |
| 45 // | |
| 0 | 46 //####DESCRIPTIONEND#### |
| 47 // | |
| 48 //========================================================================== | |
| 49 | |
| 50 // ------------------------------------------------------------------------- | |
| 51 // Check that a configuration file is present. | |
| 52 | |
| 53 #ifndef CYGONCE_PKGCONF_KERNEL_H | |
| 54 #error "No Configuration file included" | |
| 55 #endif | |
| 56 | |
| 57 // ------------------------------------------------------------------------- | |
| 58 | |
| 59 #include <cyg/infra/cyg_type.h> | |
| 60 #include <stddef.h> // for size_t | |
| 61 | |
| 62 // ------------------------------------------------------------------------- | |
| 63 // Integer types: | |
| 64 | |
| 65 typedef cyg_int32 cyg_code; // General return/error/status code | |
| 66 | |
| 67 typedef cyg_count32 cyg_priority; // priority value | |
| 68 | |
| 69 typedef cyg_uint32 cyg_vector; // vector number/descriptor | |
| 70 | |
| 71 typedef cyg_uint64 cyg_tick_count; // clock tick count value | |
| 72 | |
| 73 // ------------------------------------------------------------------------- | |
| 74 // Predefinitions of various kernel classes | |
| 75 | |
| 76 #ifdef __cplusplus | |
| 77 | |
| 78 class Cyg_Scheduler; | |
| 79 class Cyg_Scheduler_Implementation; | |
| 80 | |
| 81 class Cyg_HardwareThread; | |
| 82 class Cyg_SchedThread; | |
| 83 class Cyg_SchedThread_Implementation; | |
| 84 class Cyg_Thread; | |
| 85 | |
| 86 class Cyg_ThreadQueue; | |
| 87 class Cyg_ThreadQueue_Implementation; | |
| 88 | |
| 89 #endif | |
| 90 | |
| 91 | |
| 92 // ------------------------------------------------------------------------- | |
| 93 // Class and structure conversion macros. | |
| 94 // CYG_CLASSFROMFIELD translates a pointer to a field of a struct or | |
| 95 // class into a pointer to the class. | |
| 96 // CYG_OFFSETOFBASE yields the offset of a base class of a derived | |
| 97 // class. | |
| 98 // CYG_CLASSFROMBASE translates a pointer to a base class into a pointer | |
| 99 // to a selected derived class. The base class object _must_ be part of | |
| 100 // the specified derived class. This is essentially a poor mans version | |
| 101 // of the RTTI dynamic_cast operator. | |
| 102 // Caveat: These macros do not work for virtual base classes. | |
| 103 | |
| 104 #define CYG_CLASSFROMFIELD(_type_,_member_,_ptr_)\ | |
| 105 ((_type_ *)((char *)(_ptr_)-((char *)&(((_type_ *)0)->_member_)))) | |
| 106 | |
| 107 #ifdef __cplusplus | |
| 108 | |
| 109 #define CYG_OFFSETOFBASE(_type_,_base_)\ | |
| 110 ((char *)((_base_ *)((_type_ *)4)) - (char *)4) | |
| 111 | |
| 112 # define CYG_CLASSFROMBASE(_class_,_base_,_ptr_)\ | |
| 113 ((_class_ *)((char *)(_ptr_) - CYG_OFFSETOFBASE(_class_,_base_))) | |
| 114 | |
| 115 #endif | |
| 116 | |
| 117 // ------------------------------------------------------------------------- | |
| 118 #endif // CYGONCE_KERNEL_KTYPES_H | |
| 119 // EOF ktypes.h | |
| 120 |
