TaskRunner support for shutting down queues #5502
Merged
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Shutting down queues makes it easier to implement HTTP/2
shutdown because we can enqueue everywhere and centralize
the logic that decides whether we're shutdown or not.
Use this new functionality to implement HTTP/2 on task queues.
It's mostly a drop-in replacement, though opting-into cancel
looks like a mistake when it's what we do most of the time.
When testing this the OkHttpClientTestRule was failing because
tasks were incomplete. I was puzzled by this until I realized
that the OkHttpClientTestRule performs that validation before
we stop the MockWebServer. I changed MockWebServer to have its
own TaskRunner and that made the problem go away.