| 1 | /* $Id: OS2KSM.h,v 1.3 2001-09-27 03:04:12 bird Exp $
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| 2 | *
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| 3 | * OS/2 kernel swapper manager stuff.
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| 4 | *
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| 5 | * Copyright (c) 2001 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
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| 6 | *
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| 7 | * Project Odin Software License can be found in LICENSE.TXT
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| 8 | *
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| 9 | */
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| 10 | #ifndef _OS2KSM_H_
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| 11 | #define _OS2KSM_H_
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| 12 |
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| 13 | /*******************************************************************************
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| 14 | * Global Variables *
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| 15 | *******************************************************************************/
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| 16 | #ifndef KKRNLLIB
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| 17 | #if defined(__IBMC__) || defined(__IBMCPP__)
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| 18 | #pragma map(SMswapping , "_SMswapping")
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| 19 | #pragma map(smFileSize , "_smFileSize")
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| 20 | #pragma map(smcBrokenDF , "_smcBrokenDF")
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| 21 | #pragma map(SMcDFInuse , "_SMcDFInuse")
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| 22 | #pragma map(SMMinFree , "_SMMinFree")
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| 23 | #pragma map(SMCFGMinFree , "_SMCFGMinFree")
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| 24 | #pragma map(SMCFGSwapSize, "_SMCFGSwapSize")
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| 25 | #pragma map(smcGrowFails , "_smcGrowFails")
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| 26 | #pragma map(SMcInMemFile , "_SMcInMemFile")
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| 27 | #else
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| 28 | #pragma SMswapping _SMswapping
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| 29 | #pragma smFileSize _smFileSize
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| 30 | #pragma smcBrokenDF _smcBrokenDF
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| 31 | #pragma SMcDFInuse _SMcDFInuse
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| 32 | #pragma SMMinFree _SMMinFree
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| 33 | #pragma SMCFGMinFree _SMCFGMinFree
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| 34 | #pragma SMCFGSwapSize _SMCFGSwapSize
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| 35 | #pragma smcGrowFails _smcGrowFails
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| 36 | #pragma SMcInMemFile _SMcInMemFile
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| 37 | #endif
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| 38 | #endif
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| 39 |
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| 40 | /**
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| 41 | * Swapping enabled flag.
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| 42 | * Two states:<ul>
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| 43 | * <li> 1 - Swapping enabled.
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| 44 | * <li> 0 - Swapping disabled. </ul>
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| 45 | */
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| 46 | #ifdef KKRNLLIB
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| 47 | extern PSHORT pSMswapping;
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| 48 | #define SMswapping (*pSMswapping)
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| 49 | #else
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| 50 | extern SHORT SMswapping;
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| 51 | #endif
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| 52 |
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| 53 |
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| 54 | /**
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| 55 | * Real swapper file size in disk frames (ie. pages).
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| 56 | */
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| 57 | #ifdef KKRNLLIB
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| 58 | extern PULONG psmFileSize;
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| 59 | #define smFileSize (*psmFileSize)
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| 60 | #else
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| 61 | extern ULONG smFileSize;
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| 62 | #endif
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| 63 |
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| 64 |
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| 65 | /**
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| 66 | * Number of broken disk frames.
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| 67 | */
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| 68 | #ifdef KKRNLLIB
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| 69 | extern PULONG psmcBrokenDF;
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| 70 | #define smcBrokenDF (*psmcBrokenDF)
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| 71 | #else
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| 72 | extern ULONG smcBrokenDF;
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| 73 | #endif
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| 74 |
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| 75 |
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| 76 | /**
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| 77 | * Number of disk frames (DF) currently in use.
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| 78 | */
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| 79 | #ifdef KKRNLLIB
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| 80 | extern PULONG pSMcDFInuse;
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| 81 | #define SMcDFInuse (*pSMcDFInuse)
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| 82 | #else
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| 83 | extern ULONG SMcDFInuse;
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| 84 | #endif
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| 85 |
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| 86 |
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| 87 | /**
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| 88 | * Number of available disk frames (DF) currently.
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| 89 | */
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| 90 | #define SMcDFAvail (smFileSize - smcBrokenDF - SMcDFInuse)
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| 91 |
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| 92 |
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| 93 | /**
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| 94 | * The minimum free space on the swap volume (in pages). (Addjusted SMCFGMinFree)
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| 95 | */
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| 96 | #ifdef KKRNLLIB
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| 97 | extern PULONG pSMMinFree;
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| 98 | #define SMMinFree (*pSMMinFree)
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| 99 | #else
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| 100 | extern ULONG SMMinFree;
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| 101 | #endif
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| 102 |
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| 103 |
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| 104 | /**
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| 105 | * The minimum free space on the swap volumen (in pages * 4) specified in config.sys.
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| 106 | */
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| 107 | #ifdef KKRNLLIB
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| 108 | extern PULONG pSMCFGMinFree;
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| 109 | #define SMCFGMinFree (*pSMCFGMinFree)
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| 110 | #else
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| 111 | extern ULONG SMCFGMinFree;
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| 112 | #endif
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| 113 |
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| 114 |
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| 115 | /**
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| 116 | * The initial swapfile size (in pages * 4) specified in config.sys.
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| 117 | */
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| 118 | #ifdef KKRNLLIB
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| 119 | extern PULONG pSMCFGSwapSize;
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| 120 | #define SMCFGSwapSize (*pSMCFGSwapSize)
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| 121 | #else
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| 122 | extern ULONG SMCFGSwapSize;
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| 123 | #endif
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| 124 |
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| 125 |
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| 126 | /**
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| 127 | * Number of swapper grow attempt which has failed since boot.
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| 128 | */
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| 129 | #ifdef KKRNLLIB
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| 130 | extern PULONG psmcGrowFails;
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| 131 | #define smcGrowFails (*psmcGrowFails)
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| 132 | #else
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| 133 | extern ULONG smcGrowFails;
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| 134 | #endif
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| 135 |
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| 136 |
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| 137 | /**
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| 138 | * Number of pages in a in memory swap file.
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| 139 | * This count isn't counted into the SMcDFInuse count I think.
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| 140 | */
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| 141 | #ifdef KKRNLLIB
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| 142 | extern PULONG pSMcInMemFile;
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| 143 | #define SMcInMemFile (*pSMcInMemFile)
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| 144 | #else
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| 145 | extern ULONG SMcInMemFile;
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| 146 | #endif
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| 147 |
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| 148 |
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| 149 | #endif
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