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Make HvIsCellAllocated working.

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svn path=/trunk/; revision=32175
This commit is contained in:
Filip Navara 2008-02-07 03:32:47 +00:00
parent dbfe16d4c3
commit 9c1dc73ab3
2 changed files with 29 additions and 28 deletions
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55
reactos/lib/cmlib/hivecell.c
View File

@ -46,26 +46,24 @@ BOOLEAN CMAPI
HvIsCellAllocated(IN PHHIVE RegistryHive,
IN HCELL_INDEX CellIndex)
{
ULONG Type, Block;
ULONG Type, Block;
/* If it's a flat hive, the cell is always allocated */
if (RegistryHive->Flat) return TRUE;
/* If it's a flat hive, the cell is always allocated */
if (RegistryHive->Flat)
return TRUE;
/* Otherwise, get the type and make sure it's valid */
Type = HvGetCellType(CellIndex);
if (((CellIndex % ~HCELL_TYPE_MASK) > RegistryHive->Storage[Type].Length) ||
(CellIndex % (RegistryHive->Version >= 2 ? 8 : 16)))
{
/* Invalid cell index */
return FALSE;
}
/* Otherwise, get the type and make sure it's valid */
Type = HvGetCellType(CellIndex);
Block = HvGetCellBlock(CellIndex);
if (Block >= RegistryHive->Storage[Type].Length)
return FALSE;
/* Try to get the cell block */
Block = (CellIndex & HCELL_BLOCK_MASK) >> HCELL_BLOCK_SHIFT;
if (RegistryHive->Storage[Type].BlockList[Block].BlockAddress) return TRUE;
/* Try to get the cell block */
if (RegistryHive->Storage[Type].BlockList[Block].BlockAddress)
return TRUE;
/* No valid block, fail */
return FALSE;
/* No valid block, fail */
return FALSE;
}
PVOID CMAPI
@ -88,13 +86,13 @@ LONG CMAPI
HvGetCellSize(IN PHHIVE Hive,
IN PVOID Address)
{
PHCELL CellHeader;
LONG Size;
PHCELL CellHeader;
LONG Size;
CellHeader = (PHCELL)Address - 1;
Size = CellHeader->Size * -1;
Size -= sizeof(HCELL);
return Size;
CellHeader = (PHCELL)Address - 1;
Size = CellHeader->Size * -1;
Size -= sizeof(HCELL);
return Size;
}
BOOLEAN CMAPI
@ -126,14 +124,15 @@ BOOLEAN CMAPI
HvIsCellDirty(IN PHHIVE Hive,
IN HCELL_INDEX Cell)
{
/* Sanity checks */
ASSERT(Hive->ReadOnly == FALSE);
/* Sanity checks */
ASSERT(Hive->ReadOnly == FALSE);
/* Volatile cells are always "dirty" */
if (HvGetCellType(Cell) == Volatile) return TRUE;
/* Volatile cells are always "dirty" */
if (HvGetCellType(Cell) == Volatile)
return TRUE;
/* Check if the dirty bit is set */
return RtlCheckBit(&Hive->DirtyVector, Cell / HV_BLOCK_SIZE);
/* Check if the dirty bit is set */
return RtlCheckBit(&Hive->DirtyVector, Cell / HV_BLOCK_SIZE);
}
static ULONG __inline CMAPI

2
reactos/lib/cmlib/hivedata.h
View File

@ -92,6 +92,8 @@ typedef ULONG HCELL_INDEX, *PHCELL_INDEX;
#define HvGetCellType(Cell) \
((ULONG)((Cell & HCELL_TYPE_MASK) >> HCELL_TYPE_SHIFT))
#define HvGetCellBlock(Cell) \
((ULONG)((Cell & HCELL_BLOCK_MASK) >> HCELL_BLOCK_SHIFT))
typedef enum
{