[Pitch] Task Pools

[lukasa (Cory Benfield)]

@Joe_Groff

However, it seems to me that TaskGroup itself ought to also have the same capability for child tasks to add to the group; to me, that seems like an oversight that it doesn't, since it doesn't really affect the "structured"-ness of the task tree, and as you noted, Trio and other libraries allow this.

This is reasonable, but I don’t know how to do this without making TaskGroup Sendable or splitting it into two types.

@ksluder

Is auto-cancellation of the entire pool actually a desired behavior? Why should an error from one connection tear down all of the server’s other connections? How would I implement a server that doesn’t have this behavior while still using native Swift error handling?

Yes, very much. Auto-cancellation affects unhandled errors only. If you don’t want your server taken down, handle the error. But if you can’t, the only logical pattern is to exit.

@ksluder

What if addTask() took an error handler?

We can already spell this with do…catch.