VOID
NTAPI
CmpCleanUpKcbCacheWithLock(IN PCM_KEY_CONTROL_BLOCK Kcb,
IN BOOLEAN LockHeldExclusively)
{
PCM_KEY_CONTROL_BLOCK Parent;
PAGED_CODE();
/* Sanity checks */
ASSERT((CmpIsKcbLockedExclusive(Kcb) == TRUE) ||
(CmpTestRegistryLockExclusive() == TRUE));
ASSERT(Kcb->RefCount == 0);
/* Cleanup the value cache */
CmpCleanUpKcbValueCache(Kcb);
/* Dereference the NCB */
CmpDereferenceNameControlBlockWithLock(Kcb->NameBlock);
/* Check if we have an index hint block and free it */
if (Kcb->ExtFlags & CM_KCB_SUBKEY_HINT) CmpFree(Kcb->IndexHint, 0);
/* Check if we were already deleted */
Parent = Kcb->ParentKcb;
if (!Kcb->Delete) CmpRemoveKeyControlBlock(Kcb);
/* Set invalid KCB signature */
Kcb->Signature = CM_KCB_INVALID_SIGNATURE;
/* Free the KCB as well */
CmpFreeKeyControlBlock(Kcb);
/* Check if we have a parent */
if (Parent)
{
/* Dereference the parent */
LockHeldExclusively ?
CmpDereferenceKeyControlBlockWithLock(Parent,LockHeldExclusively) :
CmpDelayDerefKeyControlBlock(Parent);
}
}
VOID
CmpCleanUpKcbCacheWithLock(
PCM_KEY_CONTROL_BLOCK KeyControlBlock
)
/*++
Routine Description:
Clean up all cached allocations that are associated to this key.
If the parent is still open just because of this one, Remove the parent as well.
Arguments:
KeyControlBlock - pointer to a key control block.
Return Value:
NONE.
--*/
{
PCM_KEY_CONTROL_BLOCK Kcb;
PCM_KEY_CONTROL_BLOCK ParentKcb;
Kcb = KeyControlBlock;
ASSERT(KeyControlBlock->RefCount == 0);
while (Kcb->RefCount == 0) {
//
// First, free allocations for Value/data.
//
CmpCleanUpKcbValueCache(Kcb);
//
// Free the kcb and dereference parentkcb and nameblock.
//
CmpDereferenceNameControlBlockWithLock(Kcb->NameBlock);
if (Kcb->ExtFlags & CM_KCB_SUBKEY_HINT) {
//
// Now free the HintIndex allocation
//
ExFreePoolWithTag(Kcb->IndexHint, CM_CACHE_INDEX_TAG | PROTECTED_POOL);
}
//
// Save the ParentKcb before we free the Kcb
//
ParentKcb = Kcb->ParentKcb;
//
// We cannot call CmpDereferenceKeyControlBlockWithLock so we can avoid recurrsion.
//
if (!Kcb->Delete) {
CmpRemoveKeyControlBlock(Kcb);
}
SET_KCB_SIGNATURE(Kcb, '4FmC');
ASSERT_KEYBODY_LIST_EMPTY(Kcb);
ExFreePoolWithTag(Kcb, CM_KCB_TAG | PROTECTED_POOL);
Kcb = ParentKcb;
Kcb->RefCount--;
}
}
