Switch to an async mutex for handshake nonces #2031
Merged
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Outdated suggestions cannot be applied.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.
Motivation
In the handshake code, we use a threaded mutex, which blocks all the tasks on the thread when we're waiting for a lock.
Solution
Instead, use an async mutex, which passes the thread to another task while it is waiting.
The code in this pull request has:
Review
@dconnolly can review after #2008 merges. This fix isn't urgent, but we do need to clear some of the PR backlog to avoid conflicts.
Related Issues
Closes #1995 (the error slot and address book need a threaded mutex for now)