Before we round off this chapter, I want to point out that it should now be clear to us why coroutines aren’t really pre-emptable. If you remember back in Chapter […]
Read MoreIMPORTANT – Coroutines and async/await
There is one subtle point to make a note of here. The first time JoinAll::poll is called, it will call poll on each future in the collection. Polling each future […]
Read Morecoroutine/wait – Coroutines and async/await
The coroutine/wait syntax will have clear similarities to the async/await syntax, although it’s a lot more limited. The basic rules are as follows: Our implementation will make sure that if […]
Read MoreWho on earth wants to write code like this to accomplish a simple task? – Coroutines and async/await
The answer is no one! Yes, it’s a bit bombastic, but I dare guess that very few programmers prefer writing a 55-line state machine when you compare it to the […]
Read MoreNOTE – Coroutines and async/await-2
If anyone tries to call poll on our Coroutine again, we will panic, so the caller must make sure to keep track of when the future returns PollState::Ready and make […]
Read MoreNOTE – Coroutines and async/await-1
We could have simply defined Coroutine as an enum since the only state it holds is an enum indicating its state. But, we’ll set up this example so we can […]
Read More