This was removed when the logic for re-subscriptions was taken from %ames
into the generator. Sorting allows us to keep the current (last) subscription
as the last in the list, and in this case we check if it received an ack for
a naxplanation—see https://github.com/urbit/urbit/issues/6065#issuecomment-1322011137—
in which case it's safe to be corked.
+on-kroc was cluttered with ad-hoc logic to indentify stale flows from
failed resubscriptions that were not properly %corked. Here we move
that logic to a generator that, if not in dry mode, will call %ames with a
(list [ship bone]) to %cork them.
Another option would be to move the logic in the generator to a state
update in ames, which will trigger possibly thousands of %ames messages
to be sent, on every ship that runs the state migration—these flows are
not causing a problem that neds to be addressed, and only take extra
space.
If we decide that this needs to be run by everyone, one solution could be
to set up a timer (maybe taking advantage of the fact that ships don't get
the OTA a the same time) that will eventually poke %hood with a
%helm-ames-kroc task.
if all=& in |yawn, it will delete all listeners ducts,
without notifying them about it, which seems bad,
so we migh adress that separatedly.
Also, it might be cleaner to have a separate task instead of
a flag, to have two paths for "remove me" and "remove all",
this way there won't be an option for a listener to remove all
others, and that will have to be handled explicitly.
This commit refactors `sur/hood.hoon` and changes the signature of the
`+vats` generator thus:
```hoon
|= $: [now=@da eny=@uvJ bec=beak]
$@(~ [?(%suspended %running %blocking %nonexistent) ~])
$: verb=?
show-suspended=?
show-running=?
show-blocking=?
show-nonexistent=?
==
==
```
Called with a single positional argument, `+vats` will show only those
desks fitting the description given, while keyword parameters allow
finer-grained control over which desks are described. The `verb`
parameter determines whether the full load of desk information be shown,
or a subset thereof.
Resolves#6297.
