C++ (Cpp) ExInitializeFastReference Examples

Example #1

File: callback.c Project: RPG-7/reactos

VOID
NTAPI
ExInitializeCallBack(IN OUT PEX_CALLBACK Callback)
{
    /* Initialize the fast reference */
    ExInitializeFastReference(&Callback->RoutineBlock, NULL);
}

Example #2

File: obsecure.c Project: HBelusca/NasuTek-Odyssey

NTSTATUS
NTAPI
ObAssignObjectSecurityDescriptor(IN PVOID Object,
                                 IN PSECURITY_DESCRIPTOR SecurityDescriptor OPTIONAL,
                                 IN POOL_TYPE PoolType)
{
    POBJECT_HEADER ObjectHeader;
    NTSTATUS Status;
    PSECURITY_DESCRIPTOR NewSd;
    PEX_FAST_REF FastRef;
    PAGED_CODE();

    /* Get the object header */
    ObjectHeader = OBJECT_TO_OBJECT_HEADER(Object);
    FastRef = (PEX_FAST_REF)&ObjectHeader->SecurityDescriptor;
    if (!SecurityDescriptor)
    {
        /* Nothing to assign */
        ExInitializeFastReference(FastRef, NULL);
        return STATUS_SUCCESS;
    }

    /* Add it to our internal cache */
    Status = ObLogSecurityDescriptor(SecurityDescriptor,
                                     &NewSd,
                                     MAX_FAST_REFS + 1);
    if (NT_SUCCESS(Status))
    {
        /* Free the old copy */
        ExFreePoolWithTag(SecurityDescriptor, TAG_SD);

        /* Set the new pointer */
        ASSERT(NewSd);
        ExInitializeFastReference(FastRef, NewSd);
    }

    /* Return status */
    return Status;
}