On Mon, Sep 05, 2016 at 09:03:48PM +0200, Johannes Sixt wrote:

> The process spawned in the hook uses the test's trash directory as CWD.
> As long as it is alive, the directory cannot be removed on Windows.
> Although the test succeeds, the 'test_done' that follows produces an
> error message and leaves the trash directory around. Insert a delay to
> give the hook time to go away.

Ugh. I'd love it if we could avoid inserting a sleep, which wastes time
in the optimistic case and is insufficient in the pessimistic one.

The fact that the hook is already using sleep is even nastier, as it
that's a potential race on a loaded system.

Can we do some signaling with fifos to tell the hook when it is safe to
exit? Then we would just need to `wait` for its parent process.


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