ReactOS Development > Doxygen

00001 #pragma once
00002 
00003 typedef struct _NOCC_BCB
00004 {
00005     /* Public part */
00006     PUBLIC_BCB Bcb;
00007 
00008     struct _NOCC_CACHE_MAP *Map;
00009     PROS_SECTION_OBJECT SectionObject;
00010     LARGE_INTEGER FileOffset;
00011     ULONG Length;
00012     PVOID BaseAddress;
00013     BOOLEAN Dirty;
00014     PVOID OwnerPointer;
00015 
00016     /* Reference counts */
00017     ULONG RefCount;
00018 
00019     LIST_ENTRY ThisFileList;
00020 
00021     KEVENT ExclusiveWait;
00022     ULONG ExclusiveWaiter;
00023     BOOLEAN Exclusive;
00024 } NOCC_BCB, *PNOCC_BCB;
00025 
00026 typedef struct _NOCC_CACHE_MAP
00027 {
00028     LIST_ENTRY Entry;
00029     LIST_ENTRY AssociatedBcb;
00030     LIST_ENTRY PrivateCacheMaps;
00031     ULONG NumberOfMaps;
00032     ULONG RefCount;
00033     CC_FILE_SIZES FileSizes;
00034     CACHE_MANAGER_CALLBACKS Callbacks;
00035     PVOID LazyContext;
00036     PVOID LogHandle;
00037     PFLUSH_TO_LSN FlushToLsn;
00038     ULONG ReadAheadGranularity;
00039 } NOCC_CACHE_MAP, *PNOCC_CACHE_MAP;
00040 
00041 VOID
00042 NTAPI
00043 CcPfInitializePrefetcher(VOID);
00044 
00045 VOID
00046 NTAPI
00047 CcMdlReadComplete2(IN PMDL MemoryDescriptorList,
00048                    IN PFILE_OBJECT FileObject);
00049 
00050 VOID
00051 NTAPI
00052 CcMdlWriteComplete2(IN PFILE_OBJECT FileObject,
00053                     IN PLARGE_INTEGER FileOffset,
00054                     IN PMDL MdlChain);
00055 
00056 VOID
00057 NTAPI
00058 CcInitView(VOID);
00059 
00060 BOOLEAN
00061 NTAPI
00062 CcpUnpinData(PNOCC_BCB Bcb,
00063              BOOLEAN ActuallyRelease);
00064 
00065 BOOLEAN
00066 NTAPI
00067 CcInitializeCacheManager(VOID);
00068 
00069 VOID
00070 NTAPI
00071 CcShutdownSystem(VOID);
00072 
00073 VOID
00074 NTAPI
00075 CcInitCacheZeroPage(VOID);
00076 
00077 /* Called by section.c */
00078 BOOLEAN
00079 NTAPI
00080 CcFlushImageSection(PSECTION_OBJECT_POINTERS SectionObjectPointer,
00081                     MMFLUSH_TYPE FlushType);
00082 
00083 VOID
00084 NTAPI
00085 _CcpFlushCache(IN PNOCC_CACHE_MAP Map,
00086                IN OPTIONAL PLARGE_INTEGER FileOffset,
00087                IN ULONG Length,
00088                OUT OPTIONAL PIO_STATUS_BLOCK IoStatus,
00089                BOOLEAN Delete,
00090                const char *File,
00091                int Line);
00092 
00093 #define CcpFlushCache(M,F,L,I,D) _CcpFlushCache(M,F,L,I,D,__FILE__,__LINE__)
00094 
00095 BOOLEAN
00096 NTAPI
00097 CcGetFileSizes(PFILE_OBJECT FileObject,
00098                PCC_FILE_SIZES FileSizes);
00099 
00100 ULONG
00101 NTAPI
00102 CcpCountCacheSections(PNOCC_CACHE_MAP Map);
00103 
00104 BOOLEAN
00105 NTAPI
00106 CcpAcquireFileLock(PNOCC_CACHE_MAP Map);
00107 
00108 VOID
00109 NTAPI
00110 CcpReleaseFileLock(PNOCC_CACHE_MAP Map);
00111 
00112 /*
00113  * Macro for generic cache manage bugchecking. Note that this macro assumes
00114  * that the file name including extension is always longer than 4 characters.
00115  */
00116 #define KEBUGCHECKCC \
00117     KEBUGCHECKEX(CACHE_MANAGER, \
00118     (*(ULONG*)(__FILE__ + sizeof(__FILE__) - 4) << 16) | \
00119     (__LINE__ & 0xFFFF), 0, 0, 0)
00120 
00121 /* Private data */
00122 
00123 #define CACHE_SINGLE_FILE_MAX (16)
00124 #define CACHE_OVERALL_SIZE    (32 * 1024 * 1024)
00125 #define CACHE_STRIPE          VACB_MAPPING_GRANULARITY
00126 #define CACHE_SHIFT           18
00127 #define CACHE_NUM_SECTIONS    (CACHE_OVERALL_SIZE / CACHE_STRIPE)
00128 #define CACHE_ROUND_UP(x)     (((x) + (CACHE_STRIPE-1)) & ~(CACHE_STRIPE-1))
00129 #define CACHE_ROUND_DOWN(x)   ((x) & ~(CACHE_STRIPE-1))
00130 #define INVALID_CACHE         ((ULONG)~0)
00131 
00132 extern NOCC_BCB CcCacheSections[CACHE_NUM_SECTIONS];
00133 extern PRTL_BITMAP CcCacheBitmap;
00134 extern FAST_MUTEX CcMutex;
00135 extern KEVENT CcDeleteEvent;
00136 extern ULONG CcCacheClockHand;
00137 extern LIST_ENTRY CcPendingUnmap;
00138 extern KEVENT CcpLazyWriteEvent;
00139 
00140 #define CcpLock() _CcpLock(__FILE__,__LINE__)
00141 #define CcpUnlock() _CcpUnlock(__FILE__,__LINE__)
00142 
00143 extern VOID _CcpLock(const char *file, int line);
00144 extern VOID _CcpUnlock(const char *file, int line);
00145 
00146 extern VOID CcpReferenceCache(ULONG Sector);
00147 extern VOID CcpDereferenceCache(ULONG Sector, BOOLEAN Immediate);
00148 
00149 BOOLEAN
00150 NTAPI
00151 CcpMapData(IN PFILE_OBJECT FileObject,
00152            IN PLARGE_INTEGER FileOffset,
00153            IN ULONG Length,
00154            IN ULONG Flags,
00155            OUT PVOID *BcbResult,
00156            OUT PVOID *Buffer);
00157 
00158 BOOLEAN
00159 NTAPI
00160 CcpPinMappedData(IN PNOCC_CACHE_MAP Map,
00161                  IN PLARGE_INTEGER FileOffset,
00162                  IN ULONG Length,
00163                  IN ULONG Flags,
00164                  IN OUT PVOID *Bcb);
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