I have no problem with reusing existing libraries, queues whatever. But sometimes you have to work with lower level stuff. Even in 2017. So the question is less

I have no problem with reusing existing libraries, queues whatever. But sometimes you have to work with lower level stuff. Even in 2017. So the question is less about general recommendations and more about specific methods that can help in designing and analysing concurrent code. Sorry if I did not make it clear.