Fixes thread-safety issue in Message.types()#151
Merged
ameyer-rigetti merged 2 commits intomasterfrom Apr 19, 2021
Merged
Conversation
ameyer-rigetti
commented
Apr 16, 2021
| :rtype: Dict[str,type] | ||
| """ | ||
| if Message._types is None: | ||
| Message._types = {} |
Contributor
Author
There was a problem hiding this comment.
One thread might execute this while another thread is in the middle of building the dictionary. The dictionary is a class member and eventually contains a union of all message types encountered, so this fix should cause no backwards incompatibilities.
notmgsk
approved these changes
Apr 19, 2021
Contributor
notmgsk
left a comment
notmgsk
left a comment
There was a problem hiding this comment.
Bump the version in VERSION.txt and then it's good to go.
ameyer-rigetti
force-pushed
the
fix-missing-message-types
branch
from
0ac037f to
0bdb8da
Compare
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Multiple threads can sometimes collide when building
Message._types. This addresses that by ensuring the dictionary is never reset as a whole.