队列

队列和WDFDevice一样，也有：

• 属性：就是扩展Context
• 配置：回调函数

NTSTATUS
RawQueueCreate(
    _In_ WDFDEVICE                                        Device,
    _Out_ WDFQUEUE                                        *Queue
    )
{
    NTSTATUS                status;
    WDF_IO_QUEUE_CONFIG     queueConfig;
    WDF_OBJECT_ATTRIBUTES   queueAttributes;
    WDFQUEUE                queue;
    PQUEUE_CONTEXT          queueContext;

    WDF_IO_QUEUE_CONFIG_INIT(
        &queueConfig,
        WdfIoQueueDispatchParallel);

    queueConfig.EvtIoWrite = HIDINJECTOR_EvtIoWriteFromRawPdo;

    WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(
        &queueAttributes,
        QUEUE_CONTEXT);

    status = WdfIoQueueCreate(
        Device,
        &queueConfig,
        &queueAttributes,
        &queue);

    if (!NT_SUCCESS(status)) 
    {
        KdPrint(("WdfIoQueueCreate failed 0x%x\n", status));
        return status;
    }

    queueContext = GetQueueContext(queue);
    queueContext->Queue = queue;
    queueContext->DeviceContext = GetHidDeviceContext(Device);

    *Queue = queue;
    return status;
}