f-fix-deadlock -> dev

Summary

fix #122 (closed)

Focus

Problem was a non-atomic operation (integer decrement). Concurrent reading thread would fail to decrement the acquired counter. See code annotations.

Test Environment

Please use b2faf630 to see failing tests. Please use 9b85d817 for fixed DatabaseAccessManager

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related Issues
• Up-to-date CHANGELOG.md
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there spezifications? Are they satisfied?

For further good practices have a look at our review guidelines.

changed the description

added 1 commit

• 7f4e421b - fix test

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added 1 commit

• b2faf630 - Revert DatabaseAccessManager to buggy implementation

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added 1 commit

• 9b85d817 - Activate fixed DatabaseAccessManager

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changed the description

marked the checklist item All automated tests pass as completed

marked the checklist item Reference related Issues as completed

marked the checklist item Annotations in code (Gitlab comments) as completed

added 2 commits

• 492ddade - 1 commit from branch dev
• 60d6cf7a - Merge branch 'dev' into f-issue-122

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added 1 commit

• 08728fd1 - DOC: update CHANGELOG

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marked the checklist item Up-to-date CHANGELOG.md as completed

marked the checklist item I understand the intent of this MR as completed

marked the checklist item All automated tests pass as completed

marked the checklist item Up-to-date CHANGELOG.md as completed

marked the checklist item The test environment setup works and the intended behavior is as completed

marked the checklist item Check: Are there spezifications? Are they satisfied? as completed