ntoskrnl/cc/cacheman.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS kernel
   4  * FILE:            ntoskrnl/cc/cacheman.c
   5  * PURPOSE:         Cache manager
   6  *
   7  * PROGRAMMERS:     David Welch (welch@cwcom.net)
   8  */
   9
  10 /* INCLUDES *****************************************************************/
  11
  12 #include <ntoskrnl.h>
  13 #define NDEBUG
  14 #include <debug.h>
  15
  16 PFSN_PREFETCHER_GLOBALS CcPfGlobals;
  17
  18 /* FUNCTIONS *****************************************************************/
  19
  20 VOID
  21 NTAPI
  22 INIT_FUNCTION
  23 CcPfInitializePrefetcher(VOID)
  24 {
  25     /* Notify debugger */
  26     DbgPrintEx(DPFLTR_PREFETCHER_ID,
  27                DPFLTR_TRACE_LEVEL,
  28                "CCPF: InitializePrefetecher()\n");
  29
  30     /* Setup the Prefetcher Data */
  31     InitializeListHead(&CcPfGlobals.ActiveTraces);
  32     InitializeListHead(&CcPfGlobals.CompletedTraces);
  33     ExInitializeFastMutex(&CcPfGlobals.CompletedTracesLock);
  34
  35     /* FIXME: Setup the rest of the prefetecher */
  36 }
  37
  38 BOOLEAN
  39 NTAPI
  40 INIT_FUNCTION
  41 CcInitializeCacheManager(VOID)
  42 {
  43     CcInitView();
  44     return TRUE;
  45 }
  46
  47 /*
  48  * @unimplemented
  49  */
  50 LARGE_INTEGER
  51 NTAPI
  52 CcGetFlushedValidData (
  53     IN PSECTION_OBJECT_POINTERS SectionObjectPointer,
  54     IN BOOLEAN BcbListHeld
  55     )
  56 {
  57         LARGE_INTEGER i;
  58
  59         UNIMPLEMENTED;
  60
  61         i.QuadPart = 0;
  62         return i;
  63 }
  64
  65 /*
  66  * @unimplemented
  67  */
  68 PVOID
  69 NTAPI
  70 CcRemapBcb (
  71     IN PVOID Bcb
  72     )
  73 {
  74         UNIMPLEMENTED;
  75
  76     return 0;
  77 }
  78
  79 /*
  80  * @unimplemented
  81  */
  82 VOID
  83 NTAPI
  84 CcScheduleReadAhead (
  85         IN      PFILE_OBJECT            FileObject,
  86         IN      PLARGE_INTEGER          FileOffset,
  87         IN      ULONG                   Length
  88         )
  89 {
  90         UNIMPLEMENTED;
  91 }
  92
  93 /*
  94  * @unimplemented
  95  */
  96 VOID
  97 NTAPI
  98 CcSetAdditionalCacheAttributes (
  99         IN      PFILE_OBJECT    FileObject,
 100         IN      BOOLEAN         DisableReadAhead,
 101         IN      BOOLEAN         DisableWriteBehind
 102         )
 103 {
 104     CCTRACE(CC_API_DEBUG, "FileObject=%p DisableReadAhead=%d DisableWriteBehind=%d\n",
 105         FileObject, DisableReadAhead, DisableWriteBehind);
 106
 107         UNIMPLEMENTED;
 108 }
 109
 110 /*
 111  * @unimplemented
 112  */
 113 VOID
 114 NTAPI
 115 CcSetBcbOwnerPointer (
 116         IN      PVOID   Bcb,
 117         IN      PVOID   Owner
 118         )
 119 {
 120     PINTERNAL_BCB iBcb = Bcb;
 121
 122     CCTRACE(CC_API_DEBUG, "Bcb=%p Owner=%p\n",
 123         Bcb, Owner);
 124
 125     if (iBcb->OwnerPointer)
 126         DPRINT1("OwnerPointer was already set?! Old: %p, New: %p\n", iBcb->OwnerPointer, Owner);
 127     iBcb->OwnerPointer = Owner;
 128 }
 129
 130 /*
 131  * @unimplemented
 132  */
 133 VOID
 134 NTAPI
 135 CcSetDirtyPageThreshold (
 136         IN      PFILE_OBJECT    FileObject,
 137         IN      ULONG           DirtyPageThreshold
 138         )
 139 {
 140     CCTRACE(CC_API_DEBUG, "FileObject=%p DirtyPageThreshold=%lu\n",
 141         FileObject, DirtyPageThreshold);
 142
 143         UNIMPLEMENTED;
 144 }
 145
 146 /*
 147  * @unimplemented
 148  */
 149 VOID
 150 NTAPI
 151 CcSetReadAheadGranularity (
 152         IN      PFILE_OBJECT    FileObject,
 153         IN      ULONG           Granularity
 154         )
 155 {
 156     CCTRACE(CC_API_DEBUG, "FileObject=%p Granularity=%lu\n",
 157         FileObject, Granularity);
 158
 159         UNIMPLEMENTED;
 160 }