reactos/ntoskrnl/cc/mdl.c

   1 /* COPYRIGHT:       See COPYING in the top level directory
   2  * PROJECT:         ReactOS kernel
   3  * FILE:            ntoskrnl/cc/fs.c
   4  * PURPOSE:         Implements MDL Cache Manager Functions
   5  * PROGRAMMER:      Alex Ionescu
   6  * UPDATE HISTORY:
   7  *                  Created 20/06/04
   8  */
   9
  10 /* INCLUDES ******************************************************************/
  11
  12 #include <ntoskrnl.h>
  13 #define NDEBUG
  14 #include <internal/debug.h>
  15
  16 /* FUNCTIONS *****************************************************************/
  17
  18 /*
  19  * @unimplemented
  20  */
  21 VOID
  22 STDCALL
  23 CcMdlRead (
  24         IN      PFILE_OBJECT            FileObject,
  25         IN      PLARGE_INTEGER          FileOffset,
  26         IN      ULONG                   Length,
  27         OUT     PMDL                    * MdlChain,
  28         OUT     PIO_STATUS_BLOCK        IoStatus
  29         )
  30 {
  31         UNIMPLEMENTED;
  32 }
  33
  34 /**********************************************************************
  35  * NAME                                                 INTERNAL
  36  *      CcMdlReadCompleteDev@8
  37  *
  38  * DESCRIPTION
  39  *
  40  * ARGUMENTS
  41  *      MdlChain
  42  *      DeviceObject
  43  *
  44  * RETURN VALUE
  45  *      None.
  46  *
  47  * NOTE
  48  *      Used by CcMdlReadComplete@8 and FsRtl
  49  *
  50  */
  51 VOID STDCALL
  52 CcMdlReadCompleteDev (IN        PMDL            MdlChain,
  53                       IN        PDEVICE_OBJECT  DeviceObject)
  54 {
  55   UNIMPLEMENTED;
  56 }
  57
  58
  59 /**********************************************************************
  60  * NAME                                                 EXPORTED
  61  *      CcMdlReadComplete@8
  62  *
  63  * DESCRIPTION
  64  *
  65  * ARGUMENTS
  66  *
  67  * RETURN VALUE
  68  *      None.
  69  *
  70  * NOTE
  71  *      From Bo Branten's ntifs.h v13.
  72  *
  73  * @unimplemented
  74  */
  75 VOID STDCALL
  76 CcMdlReadComplete (IN   PFILE_OBJECT    FileObject,
  77                    IN   PMDL            MdlChain)
  78 {
  79    PDEVICE_OBJECT       DeviceObject = NULL;
  80
  81    DeviceObject = IoGetRelatedDeviceObject (FileObject);
  82    /* FIXME: try fast I/O first */
  83    CcMdlReadCompleteDev (MdlChain,
  84                          DeviceObject);
  85 }
  86
  87 /*
  88  * @unimplemented
  89  */
  90 VOID
  91 STDCALL
  92 CcMdlWriteComplete (
  93         IN      PFILE_OBJECT            FileObject,
  94         IN      PLARGE_INTEGER          FileOffset,
  95         IN      PMDL                    MdlChain
  96         )
  97 {
  98         UNIMPLEMENTED;
  99 }
 100
 101 /*
 102  * @unimplemented
 103  */
 104 VOID
 105 STDCALL
 106 CcMdlWriteAbort (
 107     IN PFILE_OBJECT FileObject,
 108     IN PMDL MdlChain
 109     )
 110 {
 111         UNIMPLEMENTED;
 112 }
 113
 114 /*
 115  * @unimplemented
 116  */
 117 VOID
 118 STDCALL
 119 CcPrepareMdlWrite (
 120         IN      PFILE_OBJECT            FileObject,
 121         IN      PLARGE_INTEGER          FileOffset,
 122         IN      ULONG                   Length,
 123         OUT     PMDL                    * MdlChain,
 124         OUT     PIO_STATUS_BLOCK        IoStatus
 125         )
 126 {
 127         UNIMPLEMENTED;
 128 }