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https://github.com/reactos/reactos.git
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f93acd806a
Namely, implement CcSetDirtyPageThreshold() and add support for it in CcCanIWrite(). Also added my name in the headers of the few files I touched tonight. CORE-14235
189 lines
3.4 KiB
C
189 lines
3.4 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/cc/cacheman.c
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* PURPOSE: Cache manager
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*
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* PROGRAMMERS: David Welch (welch@cwcom.net)
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* Pierre Schweitzer (pierre@reactos.org)
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*/
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/* INCLUDES *****************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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BOOLEAN CcPfEnablePrefetcher;
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PFSN_PREFETCHER_GLOBALS CcPfGlobals;
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/* FUNCTIONS *****************************************************************/
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VOID
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NTAPI
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INIT_FUNCTION
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CcPfInitializePrefetcher(VOID)
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{
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/* Notify debugger */
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DbgPrintEx(DPFLTR_PREFETCHER_ID,
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DPFLTR_TRACE_LEVEL,
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"CCPF: InitializePrefetecher()\n");
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/* Setup the Prefetcher Data */
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InitializeListHead(&CcPfGlobals.ActiveTraces);
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InitializeListHead(&CcPfGlobals.CompletedTraces);
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ExInitializeFastMutex(&CcPfGlobals.CompletedTracesLock);
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/* FIXME: Setup the rest of the prefetecher */
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}
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BOOLEAN
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NTAPI
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INIT_FUNCTION
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CcInitializeCacheManager(VOID)
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{
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return CcInitView();
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}
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VOID
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NTAPI
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CcShutdownSystem(VOID)
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{
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/* Inform the lazy writer it has to stop activity */
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CcShutdownLazyWriter();
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}
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/*
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* @unimplemented
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*/
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LARGE_INTEGER
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NTAPI
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CcGetFlushedValidData (
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IN PSECTION_OBJECT_POINTERS SectionObjectPointer,
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IN BOOLEAN BcbListHeld
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)
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{
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LARGE_INTEGER i;
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UNIMPLEMENTED;
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i.QuadPart = 0;
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return i;
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}
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/*
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* @unimplemented
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*/
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PVOID
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NTAPI
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CcRemapBcb (
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IN PVOID Bcb
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)
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{
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UNIMPLEMENTED;
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return 0;
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}
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/*
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* @unimplemented
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*/
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VOID
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NTAPI
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CcScheduleReadAhead (
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IN PFILE_OBJECT FileObject,
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IN PLARGE_INTEGER FileOffset,
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IN ULONG Length
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)
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{
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UNIMPLEMENTED;
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}
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/*
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* @unimplemented
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*/
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VOID
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NTAPI
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CcSetAdditionalCacheAttributes (
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IN PFILE_OBJECT FileObject,
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IN BOOLEAN DisableReadAhead,
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IN BOOLEAN DisableWriteBehind
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)
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{
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CCTRACE(CC_API_DEBUG, "FileObject=%p DisableReadAhead=%d DisableWriteBehind=%d\n",
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FileObject, DisableReadAhead, DisableWriteBehind);
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UNIMPLEMENTED;
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}
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/*
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* @unimplemented
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*/
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VOID
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NTAPI
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CcSetBcbOwnerPointer (
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IN PVOID Bcb,
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IN PVOID Owner
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)
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{
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PINTERNAL_BCB iBcb = Bcb;
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CCTRACE(CC_API_DEBUG, "Bcb=%p Owner=%p\n",
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Bcb, Owner);
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if (!ExIsResourceAcquiredExclusiveLite(&iBcb->Lock) && !ExIsResourceAcquiredSharedLite(&iBcb->Lock))
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{
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DPRINT1("Current thread doesn't own resource!\n");
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return;
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}
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ExSetResourceOwnerPointer(&iBcb->Lock, Owner);
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}
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/*
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* @implemented
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*/
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VOID
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NTAPI
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CcSetDirtyPageThreshold (
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IN PFILE_OBJECT FileObject,
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IN ULONG DirtyPageThreshold
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)
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{
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PFSRTL_COMMON_FCB_HEADER Fcb;
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PROS_SHARED_CACHE_MAP SharedCacheMap;
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CCTRACE(CC_API_DEBUG, "FileObject=%p DirtyPageThreshold=%lu\n",
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FileObject, DirtyPageThreshold);
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SharedCacheMap = FileObject->SectionObjectPointer->SharedCacheMap;
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if (SharedCacheMap != NULL)
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{
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SharedCacheMap->DirtyPageThreshold = DirtyPageThreshold;
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}
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Fcb = FileObject->FsContext;
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if (!BooleanFlagOn(Fcb->Flags, FSRTL_FLAG_LIMIT_MODIFIED_PAGES))
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{
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SetFlag(Fcb->Flags, FSRTL_FLAG_LIMIT_MODIFIED_PAGES);
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}
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}
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/*
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* @unimplemented
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*/
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VOID
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NTAPI
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CcSetReadAheadGranularity (
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IN PFILE_OBJECT FileObject,
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IN ULONG Granularity
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)
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{
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static ULONG Warn;
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CCTRACE(CC_API_DEBUG, "FileObject=%p Granularity=%lu\n",
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FileObject, Granularity);
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if (!Warn++) UNIMPLEMENTED;
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}
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