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00001 /*++ NDK Version: 0098
00002 
00003 Copyright (c) Alex Ionescu.  All rights reserved.
00004 
00005 Header Name:
00006 
00007     cctypes.h
00008 
00009 Abstract:
00010 
00011     Type definitions for the Cache Controller.
00012 
00013 Author:
00014 
00015     Alex Ionescu (alexi@tinykrnl.org) - Updated - 27-Feb-2006
00016 
00017 --*/
00018 
00019 #ifndef _CCTYPES_H
00020 #define _CCTYPES_H
00021 
00022 //
00023 // Dependencies
00024 //
00025 #include <umtypes.h>
00026 
00027 #ifndef NTOS_MODE_USER
00028 
00029 //
00030 // Kernel Exported CcData
00031 //
00032 extern ULONG NTSYSAPI CcFastReadNotPossible;
00033 extern ULONG NTSYSAPI CcFastReadWait;
00034 extern ULONG NTSYSAPI CcFastReadResourceMiss;
00035 extern ULONG NTSYSAPI CcFastReadNoWait;
00036 extern ULONG NTSYSAPI CcFastMdlReadNotPossible;
00037 
00038 //
00039 // Virtual Address Control BLock
00040 //
00041 typedef struct _VACB
00042 {
00043     PVOID BaseAddress;
00044     struct _SHARED_CACHE_MAP *SharedCacheMap;
00045     union
00046     {
00047         LARGE_INTEGER FileOffset;
00048         USHORT ActiveCount;
00049     } Overlay;
00050     LIST_ENTRY LruList;
00051 } VACB, *PVACB;
00052 
00053 //
00054 // Private Cache Map Structure and Flags
00055 //
00056 typedef struct _PRIVATE_CACHE_MAP_FLAGS
00057 {
00058     ULONG DontUse:16;
00059     ULONG ReadAheadActive:1;
00060     ULONG ReadAheadEnabled:1;
00061     ULONG Available:14;
00062 } PRIVATE_CACHE_MAP_FLAGS;
00063 
00064 typedef struct _PRIVATE_CACHE_MAP
00065 {
00066     union
00067     {
00068         CSHORT NodeTypeCode;
00069         PRIVATE_CACHE_MAP_FLAGS Flags;
00070         ULONG UlongFlags;
00071     };
00072     ULONG ReadAheadMask;
00073     PFILE_OBJECT FileObject;
00074     LARGE_INTEGER FileOffset1;
00075     LARGE_INTEGER BeyondLastByte1;
00076     LARGE_INTEGER FileOffset2;
00077     LARGE_INTEGER BeyondLastByte2;
00078     LARGE_INTEGER ReadAheadOffset[2];
00079     ULONG ReadAheadLength[2];
00080     KSPIN_LOCK ReadAheadSpinLock;
00081     LIST_ENTRY PrivateLinks;
00082 } PRIVATE_CACHE_MAP, *PPRIVATE_CACHE_MAP;
00083 
00084 #ifdef _NTIFS_INCLUDED_
00085 
00086 //
00087 // Shared Cache Map
00088 //
00089 typedef struct _SHARED_CACHE_MAP
00090 {
00091     SHORT NodeTypeCode;
00092     SHORT NodeByteSize;
00093     ULONG OpenCount;
00094     LARGE_INTEGER FileSize;
00095     LIST_ENTRY BcbList;
00096     LARGE_INTEGER SectionSize;
00097     LARGE_INTEGER ValidDataLength;
00098     LARGE_INTEGER ValidDataGoal;
00099     PVACB InitialVacbs[4];
00100     PVACB *Vacbs;
00101     PFILE_OBJECT FileObject;
00102     PVACB ActiveVacb;
00103     PVOID NeedToZero;
00104     ULONG ActivePage;
00105     ULONG NeedToZeroPage;
00106     ULONG ActiveVacbSpinLock;
00107     ULONG VacbActiveCount;
00108     ULONG DirtyPages;
00109     LIST_ENTRY SharedCacheMapLinks;
00110     ULONG Flags;
00111     ULONG Status;
00112     PMBCB Mbcb;
00113     PVOID Section;
00114     PKEVENT CreateEvent;
00115     PKEVENT WaitOnActiveCount;
00116     ULONG PagesToWrite;
00117     LONGLONG BeyondLastFlush;
00118     PCACHE_MANAGER_CALLBACKS Callbacks;
00119     PVOID LazyWriteContext;
00120     LIST_ENTRY PrivateList;
00121     PVOID LogHandle;
00122     PVOID FlushToLsnRoutine;
00123     ULONG DirtyPageThreshold;
00124     ULONG LazyWritePassCount;
00125     PCACHE_UNINITIALIZE_EVENT UninitializeEvent;
00126     PVACB NeedToZeroVacb;
00127     ULONG BcbSpinLock;
00128     PVOID Reserved;
00129     KEVENT Event;
00130     EX_PUSH_LOCK VacbPushLock;
00131     PRIVATE_CACHE_MAP PrivateCacheMap;
00132 } SHARED_CACHE_MAP, *PSHARED_CACHE_MAP;
00133 
00134 #endif /* _NTIFS_INCLUDED_  */
00135 #endif /* NTOS_MODE_USER    */
00136 #endif /* _CCTYPES_H        */
00137
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