| commit | b9166943e5dc23f7ce8ef2dce3cb98e5ce26e50b | [log] [tgz] |
|---|---|---|
| author | mschaller <mschaller@google.com> | Sun Jul 01 19:41:03 2018 -0700 |
| committer | Copybara-Service <copybara-piper@google.com> | Sun Jul 01 19:42:30 2018 -0700 |
| tree | 1a25cc094c95b4cbed711712256683e138038114 | |
| parent | 1e54246d27417dd69aa5553da9e945254c492cd0 [diff] |
Restart node building if previous dep is dirty, fix check-then-act races While initializing the SkyFunctionEnvironment for a node being built, if a previously requested dep is found to be not done, reset and re-enqueue the building node. This lets the node handle the not-done dep like any other not-done dep (e.g. by enqueuing it or by waiting to be signalled by it). Similarly, while registering newly requested deps when building a node yields a value or an error, if a newly requested dep is found to be not done, return without completing the node, so that it may be signalled by the dep (without crashing; done nodes cannot be signalled). Also fixes a handful of remaining check-then-act races during Skyframe evaluation that were vulnerable to done->dirty node transitions. (Note that done->dirty node transitions during evaluation are planned, but not yet possible.) RELNOTES: None. PiperOrigin-RevId: 202886360
{Fast, Correct} - Choose two
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