#pragma once
+//
+// Define this if you want debugging support
+//
+#define _CC_DEBUG_ 0x00
+
+//
+// These define the Debug Masks Supported
+//
+#define CC_API_DEBUG 0x01
+
+//
+// Debug/Tracing support
+//
+#if _CC_DEBUG_
+#ifdef NEW_DEBUG_SYSTEM_IMPLEMENTED // enable when Debug Filters are implemented
+#define CCTRACE(x, ...) \
+ { \
+ DbgPrintEx("%s [%.16s] - ", \
+ __FUNCTION__, \
+ PsGetCurrentProcess()->ImageFileName); \
+ DbgPrintEx(__VA_ARGS__); \
+ }
+#else
+#define CCTRACE(x, ...) \
+ if (x & CcRosTraceLevel) \
+ { \
+ DbgPrint("%s [%.16s] - ", \
+ __FUNCTION__, \
+ PsGetCurrentProcess()->ImageFileName); \
+ DbgPrint(__VA_ARGS__); \
+ }
+#endif
+#else
+#define CCTRACE(x, fmt, ...) DPRINT(fmt, ##__VA_ARGS__)
+#endif
+
+//
+// Global Cc Data
+//
+extern ULONG CcRosTraceLevel;
+extern LIST_ENTRY DirtyVacbListHead;
+extern ULONG CcDirtyPageThreshold;
+extern ULONG CcTotalDirtyPages;
+extern LIST_ENTRY CcDeferredWrites;
+extern KSPIN_LOCK CcDeferredWriteSpinLock;
+
typedef struct _PF_SCENARIO_ID
{
WCHAR ScenName[30];
LONG ActivePrefetches;
} PFSN_PREFETCHER_GLOBALS, *PPFSN_PREFETCHER_GLOBALS;
-typedef struct _BCB
+typedef struct _ROS_SHARED_CACHE_MAP
{
- LIST_ENTRY BcbSegmentListHead;
- LIST_ENTRY BcbRemoveListEntry;
- BOOLEAN RemoveOnClose;
+ LIST_ENTRY CacheMapVacbListHead;
ULONG TimeStamp;
PFILE_OBJECT FileObject;
- ULONG CacheSegmentSize;
- LARGE_INTEGER AllocationSize;
+ LARGE_INTEGER SectionSize;
LARGE_INTEGER FileSize;
+ BOOLEAN PinAccess;
PCACHE_MANAGER_CALLBACKS Callbacks;
PVOID LazyWriteContext;
- KSPIN_LOCK BcbLock;
- ULONG RefCount;
+ KSPIN_LOCK CacheMapLock;
+ ULONG OpenCount;
+ ULONG DirtyPageThreshold;
+ LIST_ENTRY SharedCacheMapLinks;
#if DBG
- BOOLEAN Trace; /* enable extra trace output for this BCB and it's cache segments */
+ BOOLEAN Trace; /* enable extra trace output for this cache map and it's VACBs */
#endif
-} BCB, *PBCB;
+} ROS_SHARED_CACHE_MAP, *PROS_SHARED_CACHE_MAP;
-typedef struct _CACHE_SEGMENT
+typedef struct _ROS_VACB
{
- /* Base address of the region where the cache segment data is mapped. */
+ /* Base address of the region where the view's data is mapped. */
PVOID BaseAddress;
- /*
- * Memory area representing the region where the cache segment data is
- * mapped.
- */
+ /* Memory area representing the region where the view's data is mapped. */
struct _MEMORY_AREA* MemoryArea;
- /* Are the contents of the cache segment data valid. */
+ /* Are the contents of the view valid. */
BOOLEAN Valid;
- /* Are the contents of the cache segment data newer than those on disk. */
+ /* Are the contents of the view newer than those on disk. */
BOOLEAN Dirty;
/* Page out in progress */
BOOLEAN PageOut;
ULONG MappedCount;
- /* Entry in the list of segments for this BCB. */
- LIST_ENTRY BcbSegmentListEntry;
- /* Entry in the list of segments which are dirty. */
- LIST_ENTRY DirtySegmentListEntry;
- /* Entry in the list of segments. */
- LIST_ENTRY CacheSegmentListEntry;
- LIST_ENTRY CacheSegmentLRUListEntry;
- /* Offset in the file which this cache segment maps. */
- ULONG FileOffset;
+ /* Entry in the list of VACBs for this shared cache map. */
+ LIST_ENTRY CacheMapVacbListEntry;
+ /* Entry in the list of VACBs which are dirty. */
+ LIST_ENTRY DirtyVacbListEntry;
+ /* Entry in the list of VACBs. */
+ LIST_ENTRY VacbLruListEntry;
+ /* Offset in the file which this view maps. */
+ LARGE_INTEGER FileOffset;
/* Mutex */
KMUTEX Mutex;
/* Number of references. */
ULONG ReferenceCount;
- /* Pointer to the BCB for the file which this cache segment maps data for. */
- PBCB Bcb;
- /* Pointer to the next cache segment in a chain. */
- struct _CACHE_SEGMENT* NextInChain;
-} CACHE_SEGMENT, *PCACHE_SEGMENT;
+ /* How many times was it pinned? */
+ _Guarded_by_(Mutex)
+ LONG PinCount;
+ /* Pointer to the shared cache map for the file which this view maps data for. */
+ PROS_SHARED_CACHE_MAP SharedCacheMap;
+ /* Pointer to the next VACB in a chain. */
+} ROS_VACB, *PROS_VACB;
+
+typedef struct _ROS_DEFERRED_WRITE_CONTEXT
+{
+ LIST_ENTRY CcDeferredWritesEntry;
+ PFILE_OBJECT FileObject;
+ PCC_POST_DEFERRED_WRITE PostRoutine;
+ PVOID Context1;
+ PVOID Context2;
+ ULONG BytesToWrite;
+ BOOLEAN Retrying;
+} ROS_DEFERRED_WRITE_CONTEXT, *PROS_DEFERRED_WRITE_CONTEXT;
typedef struct _INTERNAL_BCB
{
+ /* Lock */
+ ERESOURCE Lock;
PUBLIC_BCB PFCB;
- PCACHE_SEGMENT CacheSegment;
+ PROS_VACB Vacb;
BOOLEAN Dirty;
+ BOOLEAN Pinned;
CSHORT RefCount; /* (At offset 0x34 on WinNT4) */
} INTERNAL_BCB, *PINTERNAL_BCB;
VOID
NTAPI
CcMdlReadComplete2(
- IN PMDL MemoryDescriptorList,
- IN PFILE_OBJECT FileObject
+ IN PFILE_OBJECT FileObject,
+ IN PMDL MemoryDescriptorList
);
VOID
NTSTATUS
NTAPI
-CcRosFlushCacheSegment(PCACHE_SEGMENT CacheSegment);
+CcRosFlushVacb(PROS_VACB Vacb);
NTSTATUS
NTAPI
-CcRosGetCacheSegment(
- PBCB Bcb,
- ULONG FileOffset,
- PULONG BaseOffset,
+CcRosGetVacb(
+ PROS_SHARED_CACHE_MAP SharedCacheMap,
+ LONGLONG FileOffset,
+ PLONGLONG BaseOffset,
PVOID *BaseAddress,
PBOOLEAN UptoDate,
- PCACHE_SEGMENT *CacheSeg
+ PROS_VACB *Vacb
);
-VOID
+BOOLEAN
NTAPI
CcInitView(VOID);
-NTSTATUS
+VOID
NTAPI
-CcRosFreeCacheSegment(
- PBCB,
- PCACHE_SEGMENT
-);
+CcShutdownLazyWriter(VOID);
NTSTATUS
NTAPI
-ReadCacheSegment(PCACHE_SEGMENT CacheSeg);
+CcReadVirtualAddress(PROS_VACB Vacb);
NTSTATUS
NTAPI
-WriteCacheSegment(PCACHE_SEGMENT CacheSeg);
+CcWriteVirtualAddress(PROS_VACB Vacb);
BOOLEAN
NTAPI
NTSTATUS
NTAPI
-CcRosUnmapCacheSegment(
- PBCB Bcb,
- ULONG FileOffset,
+CcRosUnmapVacb(
+ PROS_SHARED_CACHE_MAP SharedCacheMap,
+ LONGLONG FileOffset,
BOOLEAN NowDirty
);
-PCACHE_SEGMENT
-NTAPI
-CcRosLookupCacheSegment(
- PBCB Bcb,
- ULONG FileOffset
-);
-
-NTSTATUS
+PROS_VACB
NTAPI
-CcRosGetCacheSegmentChain(
- PBCB Bcb,
- ULONG FileOffset,
- ULONG Length,
- PCACHE_SEGMENT* CacheSeg
+CcRosLookupVacb(
+ PROS_SHARED_CACHE_MAP SharedCacheMap,
+ LONGLONG FileOffset
);
VOID
NTSTATUS
NTAPI
-CcRosMarkDirtyCacheSegment(
- PBCB Bcb,
- ULONG FileOffset
+CcRosMarkDirtyFile(
+ PROS_SHARED_CACHE_MAP SharedCacheMap,
+ LONGLONG FileOffset
);
+VOID
+NTAPI
+CcRosMarkDirtyVacb(
+ PROS_VACB Vacb);
+
NTSTATUS
NTAPI
CcRosFlushDirtyPages(
ULONG Target,
PULONG Count,
- BOOLEAN Wait
+ BOOLEAN Wait,
+ BOOLEAN CalledFromLazy
);
VOID
VOID
NTAPI
-CcRosSetRemoveOnClose(PSECTION_OBJECT_POINTERS SectionObjectPointer);
+CcRosRemoveIfClosed(PSECTION_OBJECT_POINTERS SectionObjectPointer);
NTSTATUS
NTAPI
-CcRosReleaseCacheSegment(
- BCB* Bcb,
- CACHE_SEGMENT *CacheSeg,
+CcRosReleaseVacb(
+ PROS_SHARED_CACHE_MAP SharedCacheMap,
+ PROS_VACB Vacb,
BOOLEAN Valid,
BOOLEAN Dirty,
BOOLEAN Mapped
NTSTATUS
NTAPI
-CcRosRequestCacheSegment(
- BCB *Bcb,
- ULONG FileOffset,
+CcRosRequestVacb(
+ PROS_SHARED_CACHE_MAP SharedCacheMap,
+ LONGLONG FileOffset,
PVOID* BaseAddress,
PBOOLEAN UptoDate,
- CACHE_SEGMENT **CacheSeg
+ PROS_VACB *Vacb
);
NTSTATUS
NTAPI
CcRosInitializeFileCache(
PFILE_OBJECT FileObject,
- ULONG CacheSegmentSize,
+ PCC_FILE_SIZES FileSizes,
+ BOOLEAN PinAccess,
PCACHE_MANAGER_CALLBACKS CallBacks,
PVOID LazyWriterContext
);
NTSTATUS
NTAPI
CcTryToInitializeFileCache(PFILE_OBJECT FileObject);
+
+VOID
+NTAPI
+CcShutdownSystem(VOID);
+
+FORCEINLINE
+NTSTATUS
+CcRosAcquireVacbLock(
+ _Inout_ PROS_VACB Vacb,
+ _In_ PLARGE_INTEGER Timeout)
+{
+ NTSTATUS Status;
+ Status = KeWaitForSingleObject(&Vacb->Mutex,
+ Executive,
+ KernelMode,
+ FALSE,
+ Timeout);
+ return Status;
+}
+
+FORCEINLINE
+VOID
+CcRosReleaseVacbLock(
+ _Inout_ PROS_VACB Vacb)
+{
+ KeReleaseMutex(&Vacb->Mutex, FALSE);
+}
+
+FORCEINLINE
+BOOLEAN
+DoRangesIntersect(
+ _In_ LONGLONG Offset1,
+ _In_ LONGLONG Length1,
+ _In_ LONGLONG Offset2,
+ _In_ LONGLONG Length2)
+{
+ if (Offset1 + Length1 <= Offset2)
+ return FALSE;
+ if (Offset2 + Length2 <= Offset1)
+ return FALSE;
+ return TRUE;
+}
+
+FORCEINLINE
+BOOLEAN
+IsPointInRange(
+ _In_ LONGLONG Offset1,
+ _In_ LONGLONG Length1,
+ _In_ LONGLONG Point)
+{
+ return DoRangesIntersect(Offset1, Length1, Point, 1);
+}
projects / reactos.git / blobdiff