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[PR #11189] Attempt to make the monarch more thread safe. #28449

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opened 2026-01-31 09:28:35 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 09:28:35 +00:00
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Original Pull Request: https://github.com/microsoft/terminal/pull/11189

State: closed
Merged: Yes

Summary of the Pull Request

References

#11083
#11143

PR Checklist

  • Closes #xxx
  • CLA signed. If not, go over here and sign the CLA
  • Tests added/passed
  • Documentation updated. If checked, please file a pull request on our docs repo and link it here: #xxx
  • Schema updated.
  • I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Detailed Description of the Pull Request / Additional comments

While testing the save/quit features a number of issues were found that were caused by poor synchronization on the monarch, resulting in various unexpected crashes. Because this uses std collections, and I didn't see any builtin winrt multithreaded containers I went with the somewhat heavy-handed mutex approach.

e.g.

This also makes it so that on quit peasants don't try to become the monarch, and the monarch closes their peasant last to prevent elections from happening.

Validation Steps Performed

Create many windows (hold down ctrl-shift-n) then use the quit action from peasants/the monarch to make sure everything closes properly.

**Original Pull Request:** https://github.com/microsoft/terminal/pull/11189 **State:** closed **Merged:** Yes --- <!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? --> ## Summary of the Pull Request <!-- Other than the issue solved, is this relevant to any other issues/existing PRs? --> ## References #11083 #11143 <!-- Please review the items on the PR checklist before submitting--> ## PR Checklist * [ ] Closes #xxx * [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA * [x] Tests added/passed * [ ] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: #xxx * [ ] Schema updated. * [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx <!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here --> ## Detailed Description of the Pull Request / Additional comments While testing the save/quit features a number of issues were found that were caused by poor synchronization on the monarch, resulting in various unexpected crashes. Because this uses std collections, and I didn't see any builtin winrt multithreaded containers I went with the somewhat heavy-handed mutex approach. e.g. - https://github.com/microsoft/terminal/pull/11083#issuecomment-916218353 - https://github.com/microsoft/terminal/pull/11083#issuecomment-916220521 - https://github.com/microsoft/terminal/pull/11143/#discussion_r704738433 This also makes it so that on quit peasants don't try to become the monarch, and the monarch closes their peasant last to prevent elections from happening. <!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well --> ## Validation Steps Performed Create many windows (hold down ctrl-shift-n) then use the quit action from peasants/the monarch to make sure everything closes properly.
claunia added the pull-request label 2026-01-31 09:28:35 +00:00
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