Rework extension point for checking for already-completed futures #155
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
The current extension point assumes that if a future is in the completed state, a subsequent call to get the already completed value will succeed. While this assumption holds for scala.concurrent.Future, it might not hold for a future system that has semantics like a weak reference. This commit uses a single call `getCompleted` to query the state and get the already completed value. This returns null if the value is not available.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The current extension point assumes that if a future is in the
completed state, a subsequent call to get the already completed
value will succeed. While this assumption holds for
scala.concurrent.Future, it might not hold for a future system
that has semantics like a weak reference.
This commit uses a single call
getCompletedto query the stateand get the already completed value. This returns null if the
value is not available.