[#200] 32 bit atomic64

[elfenpiff]

Notes for Reviewer

Pre-Review Checklist for the PR Author

1. [x] Add sensible notes for the reviewer
2. [x] PR title is short, expressive and meaningful
3. [x] Relevant issues are linked in the References section
4. [x] Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
5. [x] Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
6. [x] Commits messages are according to this guideline
   • [x] Commit messages have the issue ID ([#123] Add posix ipc example)
   • [x] Commit author matches Eclipse Contributor Agreement (and ECA is signed)
7. [x] Tests follow the best practice for testing
8. [x] Changelog updated in the unreleased section including API breaking changes
9. [x] Assign PR to reviewer
10. [x] All checks have passed (except task-list-completed)

Checklist for the PR Reviewer

• [x] Commits are properly organized and messages are according to the guideline
• [x] Unit tests have been written for new behavior
• [x] Public API is documented
• [x] PR title describes the changes

Post-review Checklist for the PR Author

1. [ ] All open points are addressed and tracked via issues

References

Relates to #200

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 99.51691% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 79.25%. Comparing base (3325ac9) to head (9ad018d).

Additional details and impacted files

[](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/202?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) ```diff @@ Coverage Diff @@ ## main #202 +/- ## ========================================== + Coverage 78.99% 79.25% +0.25% ========================================== Files 182 183 +1 Lines 20213 20415 +202 ========================================== + Hits 15968 16179 +211 + Misses 4245 4236 -9 ``` | [Files](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/202?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) | Coverage Δ | | |---|---|---| | [iceoryx2-pal/concurrency-sync/src/iox\_atomic.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/202?src=pr&el=tree&filepath=iceoryx2-pal%2Fconcurrency-sync%2Fsrc%2Fiox_atomic.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItcGFsL2NvbmN1cnJlbmN5LXN5bmMvc3JjL2lveF9hdG9taWMucnM=) | `100.00% <100.00%> (ø)` | | | [iceoryx2-pal/concurrency-sync/src/rwlock.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/202?src=pr&el=tree&filepath=iceoryx2-pal%2Fconcurrency-sync%2Fsrc%2Frwlock.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItcGFsL2NvbmN1cnJlbmN5LXN5bmMvc3JjL3J3bG9jay5ycw==) | `97.41% <80.00%> (-0.44%)` | :arrow_down: | ... and [4 files with indirect coverage changes](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/202/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx)