Commit Graph

18 Commits

Author SHA1 Message Date
Erik Johnston
326b3dace7 Make ObservableDeferred.observe() always return deferred.
This makes it easier to use in an async/await world.

Also fixes a bug where cache descriptors would occaisonally return a raw
value rather than a deferred.
2019-10-30 11:35:46 +00:00
Erik Johnston
d0d8a22c13 Quick fix to ensure cache descriptors always return deferreds 2019-10-28 13:33:04 +00:00
Erik Johnston
17e1e80726 Retry well-known lookup before expiry.
This gives a bit of a grace period where we can attempt to refetch a
remote `well-known`, while still using the cached result if that fails.

Hopefully this will make the well-known resolution a bit more torelant
of failures, rather than it immediately treating failures as "no result"
and caching that for an hour.
2019-08-13 16:20:38 +01:00
Richard van der Hoff
618bd1ee76
Fix some error cases in the caching layer. (#5749)
There was some inconsistent behaviour in the caching layer around how
exceptions were handled - particularly synchronously-thrown ones.

This seems to be most easily handled by pushing the creation of
ObservableDeferreds down from CacheDescriptor to the Cache.
2019-07-25 15:59:45 +01:00
Amber Brown
4806651744
Replace returnValue with return (#5736) 2019-07-23 23:00:55 +10:00
Amber Brown
463b072b12
Move logging utilities out of the side drawer of util/ and into logging/ (#5606) 2019-07-04 00:07:04 +10:00
Amber Brown
32e7c9e7f2
Run Black. (#5482) 2019-06-20 19:32:02 +10:00
Richard van der Hoff
bc5f6e1797
Add a caching layer to .well-known responses (#4516) 2019-01-30 10:55:25 +00:00
black
8b3d9b6b19 Run black. 2018-08-10 23:54:09 +10:00
Richard van der Hoff
a8cbce0ced fix invalidation 2018-07-27 16:17:17 +01:00
Richard van der Hoff
f102c05856 Rewrite cache list decorator
Because it was complicated and annoyed me. I suspect this will be more
efficient too.
2018-07-27 13:47:04 +01:00
Amber Brown
49af402019 run isort 2018-07-09 16:09:20 +10:00
Richard van der Hoff
ea555d5633 Reinstate lost run_on_reactor in unit test
a61738b removed a call to run_on_reactor from a unit test, but that call was
doing something useful, in making the function in question asynchronous.

Reinstate the call and add a check that we are testing what we wanted to be
testing.
2018-07-04 09:40:01 +01:00
Amber Brown
a61738b316
Remove run_on_reactor (#3395) 2018-06-14 18:27:37 +10:00
Richard van der Hoff
01afc563c3 Fix overzealous cache invalidation
Fixes an issue where a cache invalidation would invalidate *all* pending
entries, rather than just the entry that we intended to invalidate.
2018-04-05 16:24:04 +01:00
Erik Johnston
eefd9fee81 Fix up tests 2017-03-30 14:14:46 +01:00
Richard van der Hoff
f9b4bb05e0 Fix the logcontext handling in the cache wrappers (#2077)
The cache wrappers had a habit of leaking the logcontext into the reactor while
the lookup function was running, and then not restoring it correctly when the
lookup function had completed. It's all the fault of
`preserve_context_over_{fn,deferred}` which are basically a bit broken.
2017-03-30 13:22:24 +01:00
Richard van der Hoff
95f21c7a66 Fix caching of remote servers' signature keys
The `@cached` decorator on `KeyStore._get_server_verify_key` was missing
its `num_args` parameter, which meant that it was returning the wrong key for
any server which had more than one recorded key.

By way of a fix, change the default for `num_args` to be *all* arguments. To
implement that, factor out a common base class for `CacheDescriptor` and `CacheListDescriptor`.
2017-03-22 15:11:30 +00:00