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 <ddk/ntddk.h>
  13 #include <ddk/ntifs.h>
  14 #include <internal/mm.h>
  15 #include <internal/cc.h>
  16 #include <internal/pool.h>
  17 #include <internal/io.h>
  18 #include <ntos/minmax.h>
  19
  20 #define NDEBUG
  21 #include <internal/debug.h>
  22
  23 /* FUNCTIONS *****************************************************************/
  24
  25 /*
  26  * @unimplemented
  27  */
  28 VOID
  29 STDCALL
  30 CcMdlRead (
  31         IN      PFILE_OBJECT            FileObject,
  32         IN      PLARGE_INTEGER          FileOffset,
  33         IN      ULONG                   Length,
  34         OUT     PMDL                    * MdlChain,
  35         OUT     PIO_STATUS_BLOCK        IoStatus
  36         )
  37 {
  38         UNIMPLEMENTED;
  39 }
  40
  41 /**********************************************************************
  42  * NAME                                                 INTERNAL
  43  *      CcMdlReadCompleteDev@8
  44  *
  45  * DESCRIPTION
  46  *
  47  * ARGUMENTS
  48  *      MdlChain
  49  *      DeviceObject
  50  *
  51  * RETURN VALUE
  52  *      None.
  53  *
  54  * NOTE
  55  *      Used by CcMdlReadComplete@8 and FsRtl
  56  *
  57  */
  58 VOID STDCALL
  59 CcMdlReadCompleteDev (IN        PMDL            MdlChain,
  60                       IN        PDEVICE_OBJECT  DeviceObject)
  61 {
  62   UNIMPLEMENTED;
  63 }
  64
  65
  66 /**********************************************************************
  67  * NAME                                                 EXPORTED
  68  *      CcMdlReadComplete@8
  69  *
  70  * DESCRIPTION
  71  *
  72  * ARGUMENTS
  73  *
  74  * RETURN VALUE
  75  *      None.
  76  *
  77  * NOTE
  78  *      From Bo Branten's ntifs.h v13.
  79  *
  80  * @unimplemented
  81  */
  82 VOID STDCALL
  83 CcMdlReadComplete (IN   PFILE_OBJECT    FileObject,
  84                    IN   PMDL            MdlChain)
  85 {
  86    PDEVICE_OBJECT       DeviceObject = NULL;
  87
  88    DeviceObject = IoGetRelatedDeviceObject (FileObject);
  89    /* FIXME: try fast I/O first */
  90    CcMdlReadCompleteDev (MdlChain,
  91                          DeviceObject);
  92 }
  93
  94 /*
  95  * @unimplemented
  96  */
  97 VOID
  98 STDCALL
  99 CcMdlWriteComplete (
 100         IN      PFILE_OBJECT            FileObject,
 101         IN      PLARGE_INTEGER          FileOffset,
 102         IN      PMDL                    MdlChain
 103         )
 104 {
 105         UNIMPLEMENTED;
 106 }
 107
 108 /*
 109  * @unimplemented
 110  */
 111 VOID
 112 STDCALL
 113 CcMdlWriteAbort (
 114     IN PFILE_OBJECT FileObject,
 115     IN PMDL MdlChain
 116     )
 117 {
 118         UNIMPLEMENTED;
 119 }
 120
 121 /*
 122  * @unimplemented
 123  */
 124 VOID
 125 STDCALL
 126 CcPrepareMdlWrite (
 127         IN      PFILE_OBJECT            FileObject,
 128         IN      PLARGE_INTEGER          FileOffset,
 129         IN      ULONG                   Length,
 130         OUT     PMDL                    * MdlChain,
 131         OUT     PIO_STATUS_BLOCK        IoStatus
 132         )
 133 {
 134         UNIMPLEMENTED;
 135 }