NTSTATUS NTAPI NtCreateEventPair	(	OUT PHANDLE	EventPairHandle,
		IN ACCESS_MASK	DesiredAccess,
		IN POBJECT_ATTRIBUTES	ObjectAttributes
	)
Definition at line 57 of file evtpair.c.
{
    PKEVENT_PAIR EventPair;
    HANDLE hEventPair;
    KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
    NTSTATUS Status;
    PAGED_CODE();
    DPRINT("NtCreateEventPair: 0x%p\n", EventPairHandle);

    /* Check if we were called from user-mode */
    if (PreviousMode != KernelMode)
    {
        /* Enter SEH Block */
        _SEH2_TRY
        {
            /* Check handle pointer */
            ProbeForWriteHandle(EventPairHandle);
        }
        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
        {
            /* Return the exception code */
            _SEH2_YIELD(return _SEH2_GetExceptionCode());
        }
        _SEH2_END;
    }

    /* Create the Object */
    DPRINT("Creating EventPair\n");
    Status = ObCreateObject(PreviousMode,
                            ExEventPairObjectType,
                            ObjectAttributes,
                            PreviousMode,
                            NULL,
                            sizeof(KEVENT_PAIR),
                            0,
                            0,
                            (PVOID*)&EventPair);

    /* Check for Success */
    if (NT_SUCCESS(Status))
    {
        /* Initalize the Event */
        DPRINT("Initializing EventPair\n");
        KeInitializeEventPair(EventPair);

        /* Insert it */
        Status = ObInsertObject((PVOID)EventPair,
                                 NULL,
                                 DesiredAccess,
                                 0,
                                 NULL,
                                 &hEventPair);

        /* Check for success */
        if (NT_SUCCESS(Status))
        {
            /* Enter SEH */
            _SEH2_TRY
            {
                /* Return the handle */
                *EventPairHandle = hEventPair;
            }
            _SEH2_EXCEPT(ExSystemExceptionFilter())
            {
                /* Get the exception code */
                Status = _SEH2_GetExceptionCode();
            }
            _SEH2_END;
        }
    }

    /* Return Status */
    return Status;
}
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