Build `task_local!` data from a `Future`

[Ekleog]

Conversation moved to rustasync/team#7

I am currently designing a crate. In this crate, I have a lazy_static! HashMap, that I'm filling with one piece of data per task, in the task_local! constructor.

As a consequence, I have to handle locking to this HashMap. Which would seem to be handled cleanly only by constructing the actual piece of data from a Future, so that the executor loop doesn't have to stop waiting for the RwLock when spawning a task.

What do you think about this idea? (also, is there maybe some other way I don't know of to associate each task with a serializable ID and additional metadata, and my problem is void?)

[tikue]

Should conversation converge on rustasync/team#7?

[Ekleog]

Good point, leaving this open until rustasync/team#7 is solved so that people who search for it find it, plan to close once that's solved :)

[cramertj]

rustasync/team#7 has been closed