ntoskrnl/config/cmmapvw.c

   1 /*
   2  * PROJECT:         ReactOS Kernel
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * FILE:            ntoskrnl/config/cmmapvw.c
   5  * PURPOSE:         Configuration Manager - Map-Viewed Hive Support
   6  * PROGRAMMERS:     Alex Ionescu (alex.ionescu@reactos.org)
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include "ntoskrnl.h"
  12 #define NDEBUG
  13 #include "debug.h"
  14
  15 /* GLOBALS *******************************************************************/
  16
  17 /* FUNCTIONS *****************************************************************/
  18
  19 VOID
  20 NTAPI
  21 CmpInitHiveViewList(IN PCMHIVE Hive)
  22 {
  23     /* Initialize the list heads */
  24     InitializeListHead(&Hive->LRUViewListHead);
  25     InitializeListHead(&Hive->PinViewListHead);
  26
  27     /* Reset data */
  28     Hive->MappedViews = 0;
  29     Hive->PinnedViews = 0;
  30     Hive->UseCount = 0;
  31 }
  32
  33 VOID
  34 NTAPI
  35 CmpDestroyHiveViewList(IN PCMHIVE Hive)
  36 {
  37     PCM_VIEW_OF_FILE CmView;
  38     PLIST_ENTRY EntryList;
  39
  40     /* Do NOT destroy the views of read-only hives */
  41     ASSERT(Hive->Hive.ReadOnly == FALSE);
  42
  43     /* Free all the views inside the Pinned View List */
  44     while (!IsListEmpty(&Hive->PinViewListHead))
  45     {
  46         EntryList = RemoveHeadList(&Hive->PinViewListHead);
  47
  48         CmView = CONTAINING_RECORD(EntryList, CM_VIEW_OF_FILE, PinViewList);
  49
  50         /* FIXME: Unmap the view if it is mapped */
  51
  52         ExFreePool(CmView);
  53
  54         Hive->PinnedViews--;
  55     }
  56
  57     /* The Pinned View List should be empty */
  58     ASSERT(IsListEmpty(&Hive->PinViewListHead) == TRUE);
  59     ASSERT(Hive->PinnedViews == 0);
  60
  61     /* Now, free all the views inside the LRU View List */
  62     while (!IsListEmpty(&Hive->LRUViewListHead))
  63     {
  64         EntryList = RemoveHeadList(&Hive->LRUViewListHead);
  65
  66         CmView = CONTAINING_RECORD(EntryList, CM_VIEW_OF_FILE, LRUViewList);
  67
  68         /* FIXME: Unmap the view if it is mapped */
  69
  70         ExFreePool(CmView);
  71
  72         Hive->MappedViews--;
  73     }
  74
  75     /* The LRU View List should be empty */
  76     ASSERT(IsListEmpty(&Hive->LRUViewListHead) == TRUE);
  77     ASSERT(Hive->MappedViews == 0);
  78 }
  79
  80 /* EOF */