Remember randomly selected ports, and don't reuse them #5685
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Outdated suggestions cannot be applied.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.
WHY are these changes introduced?
To prevent port conflicts when multiple processes request random TCP ports in quick succession. If a caller doesn't use a port immediately, a duplicate random port can be chosen.
WHAT is this pull request doing?
Enhances the
getAvailableTCPPort
function to track previously obtained random ports and ensure they aren't reused within the same process. This is accomplished by:obtainedRandomPorts
Set to keep track of ports that have been assignedAdded a test case to verify that random ports are not reused.