reactos/ntoskrnl/cc/mdl.c

   1 /* $Id:$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            ntoskrnl/cc/fs.c
   6  * PURPOSE:         Implements MDL Cache Manager Functions
   7  *
   8  * PROGRAMMERS:     Alex Ionescu
   9  */
  10
  11 /* INCLUDES ******************************************************************/
  12
  13 #include <ntoskrnl.h>
  14 #define NDEBUG
  15 #include <internal/debug.h>
  16
  17 /* FUNCTIONS *****************************************************************/
  18
  19 /*
  20  * @unimplemented
  21  */
  22 VOID
  23 STDCALL
  24 CcMdlRead (
  25         IN      PFILE_OBJECT            FileObject,
  26         IN      PLARGE_INTEGER          FileOffset,
  27         IN      ULONG                   Length,
  28         OUT     PMDL                    * MdlChain,
  29         OUT     PIO_STATUS_BLOCK        IoStatus
  30         )
  31 {
  32         UNIMPLEMENTED;
  33 }
  34
  35 /**********************************************************************
  36  * NAME                                                 INTERNAL
  37  *      CcMdlReadCompleteDev@8
  38  *
  39  * DESCRIPTION
  40  *
  41  * ARGUMENTS
  42  *      MdlChain
  43  *      DeviceObject
  44  *
  45  * RETURN VALUE
  46  *      None.
  47  *
  48  * NOTE
  49  *      Used by CcMdlReadComplete@8 and FsRtl
  50  *
  51  */
  52 VOID STDCALL
  53 CcMdlReadCompleteDev (IN        PMDL            MdlChain,
  54                       IN        PDEVICE_OBJECT  DeviceObject)
  55 {
  56   UNIMPLEMENTED;
  57 }
  58
  59
  60 /**********************************************************************
  61  * NAME                                                 EXPORTED
  62  *      CcMdlReadComplete@8
  63  *
  64  * DESCRIPTION
  65  *
  66  * ARGUMENTS
  67  *
  68  * RETURN VALUE
  69  *      None.
  70  *
  71  * NOTE
  72  *      From Bo Branten's ntifs.h v13.
  73  *
  74  * @unimplemented
  75  */
  76 VOID STDCALL
  77 CcMdlReadComplete (IN   PFILE_OBJECT    FileObject,
  78                    IN   PMDL            MdlChain)
  79 {
  80    PDEVICE_OBJECT       DeviceObject = NULL;
  81
  82    DeviceObject = IoGetRelatedDeviceObject (FileObject);
  83    /* FIXME: try fast I/O first */
  84    CcMdlReadCompleteDev (MdlChain,
  85                          DeviceObject);
  86 }
  87
  88 /*
  89  * @unimplemented
  90  */
  91 VOID
  92 STDCALL
  93 CcMdlWriteComplete (
  94         IN      PFILE_OBJECT            FileObject,
  95         IN      PLARGE_INTEGER          FileOffset,
  96         IN      PMDL                    MdlChain
  97         )
  98 {
  99         UNIMPLEMENTED;
 100 }
 101
 102 /*
 103  * @unimplemented
 104  */
 105 VOID
 106 STDCALL
 107 CcMdlWriteAbort (
 108     IN PFILE_OBJECT FileObject,
 109     IN PMDL MdlChain
 110     )
 111 {
 112         UNIMPLEMENTED;
 113 }
 114
 115 /*
 116  * @unimplemented
 117  */
 118 VOID
 119 STDCALL
 120 CcPrepareMdlWrite (
 121         IN      PFILE_OBJECT            FileObject,
 122         IN      PLARGE_INTEGER          FileOffset,
 123         IN      ULONG                   Length,
 124         OUT     PMDL                    * MdlChain,
 125         OUT     PIO_STATUS_BLOCK        IoStatus
 126         )
 127 {
 128         UNIMPLEMENTED;
 129 }