On 29/09/2025 11:15, Adam Warski wrote:
:
Well if scope.join() waits until all forks complete, it will only do so when
there are no forks left, and then nobody can create new forks? So I don’t think
there’s a race here? In other words, forks can only be created from live forks,
before they complete.
That's right but allowing this (as it was in early previews) creates
weirdness where a subtask can fork it cannot join. It also messes with
the mental model of "parent". Who is my parent when I'm forked by a
sibling?
If the problem has been arranged so that subtask opens a new scope and
decomposes into a set of sub-subtasks forked in this scope, thus
creating a hierarchy, then it becomes simpler to reason about.
-Alan
