reactos/sdk/include/ndk/cctypes.h

   1 /*++ NDK Version: 0098
   2
   3 Copyright (c) Alex Ionescu.  All rights reserved.
   4
   5 Header Name:
   6
   7     cctypes.h
   8
   9 Abstract:
  10
  11     Type definitions for the Cache Controller.
  12
  13 Author:
  14
  15     Alex Ionescu (alexi@tinykrnl.org) - Updated - 27-Feb-2006
  16
  17 --*/
  18
  19 #ifndef _CCTYPES_H
  20 #define _CCTYPES_H
  21
  22 //
  23 // Dependencies
  24 //
  25 #include <umtypes.h>
  26
  27 #ifndef NTOS_MODE_USER
  28
  29 //
  30 // Kernel Exported CcData
  31 //
  32 extern ULONG NTSYSAPI CcFastReadNotPossible;
  33 extern ULONG NTSYSAPI CcFastReadWait;
  34 extern ULONG NTSYSAPI CcFastReadResourceMiss;
  35 extern ULONG NTSYSAPI CcFastReadNoWait;
  36 extern ULONG NTSYSAPI CcFastMdlReadNotPossible;
  37
  38 //
  39 // Virtual Address Control BLock
  40 //
  41 typedef struct _VACB
  42 {
  43     PVOID BaseAddress;
  44     struct _SHARED_CACHE_MAP *SharedCacheMap;
  45     union
  46     {
  47         LARGE_INTEGER FileOffset;
  48         USHORT ActiveCount;
  49     } Overlay;
  50     LIST_ENTRY LruList;
  51 } VACB, *PVACB;
  52
  53 //
  54 // Private Cache Map Structure and Flags
  55 //
  56 typedef struct _PRIVATE_CACHE_MAP_FLAGS
  57 {
  58     ULONG DontUse:16;
  59     ULONG ReadAheadActive:1;
  60     ULONG ReadAheadEnabled:1;
  61     ULONG Available:14;
  62 } PRIVATE_CACHE_MAP_FLAGS;
  63
  64 typedef struct _PRIVATE_CACHE_MAP
  65 {
  66     union
  67     {
  68         CSHORT NodeTypeCode;
  69         PRIVATE_CACHE_MAP_FLAGS Flags;
  70         ULONG UlongFlags;
  71     };
  72     ULONG ReadAheadMask;
  73     PFILE_OBJECT FileObject;
  74     LARGE_INTEGER FileOffset1;
  75     LARGE_INTEGER BeyondLastByte1;
  76     LARGE_INTEGER FileOffset2;
  77     LARGE_INTEGER BeyondLastByte2;
  78     LARGE_INTEGER ReadAheadOffset[2];
  79     ULONG ReadAheadLength[2];
  80     KSPIN_LOCK ReadAheadSpinLock;
  81     LIST_ENTRY PrivateLinks;
  82 } PRIVATE_CACHE_MAP, *PPRIVATE_CACHE_MAP;
  83
  84 typedef struct _BITMAP_RANGE
  85 {
  86     LIST_ENTRY Links;
  87     LONGLONG BasePage;
  88     ULONG FirstDirtyPage;
  89     ULONG LastDirtyPage;
  90     ULONG DirtyPages;
  91     PULONG Bitmap;
  92 } BITMAP_RANGE, *PBITMAP_RANGE;
  93
  94 typedef struct _MBCB
  95 {
  96     CSHORT NodeTypeCode;
  97     CSHORT NodeIsInZone;
  98     ULONG PagesToWrite;
  99     ULONG DirtyPages;
 100     ULONG Reserved;
 101     LIST_ENTRY BitmapRanges;
 102     LONGLONG ResumeWritePage;
 103     BITMAP_RANGE BitmapRange1;
 104     BITMAP_RANGE BitmapRange2;
 105     BITMAP_RANGE BitmapRange3;
 106 } MBCB, *PMBCB;
 107
 108 #ifdef _NTIFS_INCLUDED_
 109
 110 //
 111 // Shared Cache Map
 112 //
 113 typedef struct _SHARED_CACHE_MAP
 114 {
 115     SHORT NodeTypeCode;
 116     SHORT NodeByteSize;
 117     ULONG OpenCount;
 118     LARGE_INTEGER FileSize;
 119     LIST_ENTRY BcbList;
 120     LARGE_INTEGER SectionSize;
 121     LARGE_INTEGER ValidDataLength;
 122     LARGE_INTEGER ValidDataGoal;
 123     PVACB InitialVacbs[4];
 124     PVACB *Vacbs;
 125     PFILE_OBJECT FileObject;
 126     PVACB ActiveVacb;
 127     PVOID NeedToZero;
 128     ULONG ActivePage;
 129     ULONG NeedToZeroPage;
 130     KSPIN_LOCK ActiveVacbSpinLock;
 131     ULONG VacbActiveCount;
 132     ULONG DirtyPages;
 133     LIST_ENTRY SharedCacheMapLinks;
 134     ULONG Flags;
 135     LONG Status;
 136     PMBCB Mbcb;
 137     PVOID Section;
 138     PKEVENT CreateEvent;
 139     PKEVENT WaitOnActiveCount;
 140     ULONG PagesToWrite;
 141     LONGLONG BeyondLastFlush;
 142     PCACHE_MANAGER_CALLBACKS Callbacks;
 143     PVOID LazyWriteContext;
 144     LIST_ENTRY PrivateList;
 145     PVOID LogHandle;
 146     PFLUSH_TO_LSN FlushToLsnRoutine;
 147     ULONG DirtyPageThreshold;
 148     ULONG LazyWritePassCount;
 149     PCACHE_UNINITIALIZE_EVENT UninitializeEvent;
 150     PVACB NeedToZeroVacb;
 151     KSPIN_LOCK BcbSpinLock;
 152     PVOID Reserved;
 153     KEVENT Event;
 154     EX_PUSH_LOCK VacbPushLock;
 155     PRIVATE_CACHE_MAP PrivateCacheMap;
 156 } SHARED_CACHE_MAP, *PSHARED_CACHE_MAP;
 157
 158 #endif /* _NTIFS_INCLUDED_  */
 159 #endif /* NTOS_MODE_USER    */
 160 #endif /* _CCTYPES_H        */
 161