reactos/ntoskrnl/cache/newcc.h

165 lines
3.8 KiB
C

#pragma once
typedef struct _NOCC_BCB
{
/* Public part */
PUBLIC_BCB Bcb;
struct _NOCC_CACHE_MAP *Map;
PROS_SECTION_OBJECT SectionObject;
LARGE_INTEGER FileOffset;
ULONG Length;
PVOID BaseAddress;
BOOLEAN Dirty;
PVOID OwnerPointer;
/* Reference counts */
ULONG RefCount;
LIST_ENTRY ThisFileList;
KEVENT ExclusiveWait;
ULONG ExclusiveWaiter;
BOOLEAN Exclusive;
} NOCC_BCB, *PNOCC_BCB;
typedef struct _NOCC_CACHE_MAP
{
LIST_ENTRY Entry;
LIST_ENTRY AssociatedBcb;
LIST_ENTRY PrivateCacheMaps;
ULONG NumberOfMaps;
ULONG RefCount;
CC_FILE_SIZES FileSizes;
CACHE_MANAGER_CALLBACKS Callbacks;
PVOID LazyContext;
PVOID LogHandle;
PFLUSH_TO_LSN FlushToLsn;
ULONG ReadAheadGranularity;
} NOCC_CACHE_MAP, *PNOCC_CACHE_MAP;
VOID
NTAPI
CcPfInitializePrefetcher(VOID);
VOID
NTAPI
CcMdlReadComplete2(IN PFILE_OBJECT FileObject,
IN PMDL MemoryDescriptorList);
VOID
NTAPI
CcMdlWriteComplete2(IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN PMDL MdlChain);
VOID
NTAPI
CcInitView(VOID);
BOOLEAN
NTAPI
CcpUnpinData(PNOCC_BCB Bcb,
BOOLEAN ActuallyRelease);
BOOLEAN
NTAPI
CcInitializeCacheManager(VOID);
VOID
NTAPI
CcShutdownSystem(VOID);
VOID
NTAPI
CcInitCacheZeroPage(VOID);
/* Called by section.c */
BOOLEAN
NTAPI
CcFlushImageSection(PSECTION_OBJECT_POINTERS SectionObjectPointer,
MMFLUSH_TYPE FlushType);
VOID
NTAPI
_CcpFlushCache(IN PNOCC_CACHE_MAP Map,
IN OPTIONAL PLARGE_INTEGER FileOffset,
IN ULONG Length,
OUT OPTIONAL PIO_STATUS_BLOCK IoStatus,
BOOLEAN Delete,
const char *File,
int Line);
#define CcpFlushCache(M,F,L,I,D) _CcpFlushCache(M,F,L,I,D,__FILE__,__LINE__)
BOOLEAN
NTAPI
CcGetFileSizes(PFILE_OBJECT FileObject,
PCC_FILE_SIZES FileSizes);
ULONG
NTAPI
CcpCountCacheSections(PNOCC_CACHE_MAP Map);
BOOLEAN
NTAPI
CcpAcquireFileLock(PNOCC_CACHE_MAP Map);
VOID
NTAPI
CcpReleaseFileLock(PNOCC_CACHE_MAP Map);
/*
* Macro for generic cache manage bugchecking. Note that this macro assumes
* that the file name including extension is always longer than 4 characters.
*/
#define KEBUGCHECKCC \
KEBUGCHECKEX(CACHE_MANAGER, \
(*(ULONG*)(__FILE__ + sizeof(__FILE__) - 4) << 16) | \
(__LINE__ & 0xFFFF), 0, 0, 0)
/* Private data */
#define CACHE_SINGLE_FILE_MAX (16)
#define CACHE_OVERALL_SIZE (32 * 1024 * 1024)
#define CACHE_STRIPE VACB_MAPPING_GRANULARITY
#define CACHE_SHIFT 18
#define CACHE_NUM_SECTIONS (CACHE_OVERALL_SIZE / CACHE_STRIPE)
#define CACHE_ROUND_UP(x) (((x) + (CACHE_STRIPE-1)) & ~(CACHE_STRIPE-1))
#define CACHE_ROUND_DOWN(x) ((x) & ~(CACHE_STRIPE-1))
#define INVALID_CACHE ((ULONG)~0)
extern NOCC_BCB CcCacheSections[CACHE_NUM_SECTIONS];
extern PRTL_BITMAP CcCacheBitmap;
extern FAST_MUTEX CcMutex;
extern KEVENT CcDeleteEvent;
extern ULONG CcCacheClockHand;
extern LIST_ENTRY CcPendingUnmap;
extern KEVENT CcpLazyWriteEvent;
#define CcpLock() _CcpLock(__FILE__,__LINE__)
#define CcpUnlock() _CcpUnlock(__FILE__,__LINE__)
extern VOID _CcpLock(const char *file, int line);
extern VOID _CcpUnlock(const char *file, int line);
extern VOID CcpReferenceCache(ULONG Sector);
extern VOID CcpDereferenceCache(ULONG Sector, BOOLEAN Immediate);
BOOLEAN
NTAPI
CcpMapData(IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN ULONG Flags,
OUT PVOID *BcbResult,
OUT PVOID *Buffer);
BOOLEAN
NTAPI
CcpPinMappedData(IN PNOCC_CACHE_MAP Map,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN ULONG Flags,
IN OUT PVOID *Bcb);