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 #ifdef _NTIFS_INCLUDED_
  85
  86 //
  87 // Shared Cache Map
  88 //
  89 typedef struct _SHARED_CACHE_MAP
  90 {
  91     SHORT NodeTypeCode;
  92     SHORT NodeByteSize;
  93     ULONG OpenCount;
  94     LARGE_INTEGER FileSize;
  95     LIST_ENTRY BcbList;
  96     LARGE_INTEGER SectionSize;
  97     LARGE_INTEGER ValidDataLength;
  98     LARGE_INTEGER ValidDataGoal;
  99     PVACB InitialVacbs[4];
 100     PVACB *Vacbs;
 101     PFILE_OBJECT FileObject;
 102     PVACB ActiveVacb;
 103     PVOID NeedToZero;
 104     ULONG ActivePage;
 105     ULONG NeedToZeroPage;
 106     ULONG ActiveVacbSpinLock;
 107     ULONG VacbActiveCount;
 108     ULONG DirtyPages;
 109     LIST_ENTRY SharedCacheMapLinks;
 110     ULONG Flags;
 111     ULONG Status;
 112     PMBCB Mbcb;
 113     PVOID Section;
 114     PKEVENT CreateEvent;
 115     PKEVENT WaitOnActiveCount;
 116     ULONG PagesToWrite;
 117     LONGLONG BeyondLastFlush;
 118     PCACHE_MANAGER_CALLBACKS Callbacks;
 119     PVOID LazyWriteContext;
 120     LIST_ENTRY PrivateList;
 121     PVOID LogHandle;
 122     PVOID FlushToLsnRoutine;
 123     ULONG DirtyPageThreshold;
 124     ULONG LazyWritePassCount;
 125     PCACHE_UNINITIALIZE_EVENT UninitializeEvent;
 126     PVACB NeedToZeroVacb;
 127     ULONG BcbSpinLock;
 128     PVOID Reserved;
 129     KEVENT Event;
 130     EX_PUSH_LOCK VacbPushLock;
 131     PRIVATE_CACHE_MAP PrivateCacheMap;
 132 } SHARED_CACHE_MAP, *PSHARED_CACHE_MAP;
 133
 134 #endif /* _NTIFS_INCLUDED_  */
 135 #endif /* NTOS_MODE_USER    */
 136 #endif /* _CCTYPES_H        */
 137