919535 - Closing Sqlite.jsm databases should block profileBeforeChange

Status: RESOLVED FIXED

(Toolkit :: Storage, defect)

Description

[David Teller [:Yoric] - still alive but not very active]

Since Sqlite.jsm calls asyncClose, the actual closing could theoretically take place after profile-before-change, which is bad. We need to plug these calls to asyncClose to AsyncShutdown.profileBeforeChange.

This will cause shutdown freezes (or 100% reproducible shutdown crashes once bug 917764 has landed) if the owner of the database calls asyncClose too late, which is certainly better than silent data loss/corruption.

Comment 1

[David Teller [:Yoric] - still alive but not very active]

Gps could you handle this?

Comment 2

[Gregory Szorc [:gps]]

Attachment: Use AsyncShutdown in Sqlite.jsm

I think this will do it! Not sure how to test this explicitly...

Comment 3

[David Teller [:Yoric] - still alive but not very active]

Comment on attachment 813076 [details] [diff] [review]
Use AsyncShutdown in Sqlite.jsm

Review of attachment 813076 [details] [diff] [review]:
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That looks good to me.
I would be slightly more comfortable if that part of the code were written with Task.jsm and we had a try/finally to ensure that we always resolve/reject the promise.
What do you think?

Comment 4

[Gregory Szorc [:gps]]

Comment on attachment 813076 [details] [diff] [review]
Use AsyncShutdown in Sqlite.jsm

(In reply to David Rajchenbach Teller [:Yoric] from comment #3)
> That looks good to me.
> I would be slightly more comfortable if that part of the code were written
> with Task.jsm and we had a try/finally to ensure that we always
> resolve/reject the promise.
> What do you think?

I think the current patch accomplishes what we set out to accomplish in a very simple way and any extra code cleanup should be deferred to a followup bug.

Comment 5

[David Teller [:Yoric] - still alive but not very active]

Comment on attachment 813076 [details] [diff] [review]
Use AsyncShutdown in Sqlite.jsm

Review of attachment 813076 [details] [diff] [review]:
-----------------------------------------------------------------

Ok, I won't insist.

Comment 6

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/integration/fx-team/rev/a5046a3a30ea

Comment 7

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/a5046a3a30ea