[logs] Remove arc-swap dependency from Rust backend.

There's a newer version we're looking at updating to, but it has a lot
more unsafe and will be very high effort to verify. It's only used here,
so we're going to be a bit risk averse and just remove it from the tree.

AFAIK there's nothing that will suffer seriously when going from an
ArcSwap<Severity> to a RwLock<Severity>, and the .read() calls might
even be faster than ArcSwap's fast path when uncontended.

A future change will actually remove the crate, as its still depended on
by an out of date version of signal-hook-registry which will we'll
update past in fxr/512238.

Change-Id: I048d5750d730b352e811c2a4ebe3d34db6bc29fd
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/514600
Fuchsia-Auto-Submit: Adam Perry <adamperry@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
Reviewed-by: Miguel Flores <miguelfrde@google.com>
5 files changed
tree: 6fa63485e83c1bcc1d3d3de4c8c2fd4e599be2d3
  1. boards/
  2. build/
  3. buildtools/
  4. bundles/
  5. docs/
  6. examples/
  7. garnet/
  8. products/
  9. scripts/
  10. sdk/
  11. src/
  12. third_party/
  13. tools/
  14. zircon/
  15. .clang-format
  16. .clang-tidy
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. .style.yapf
  22. AUTHORS
  23. BUILD.gn
  24. CODE_OF_CONDUCT.md
  25. CONTRIBUTING.md
  26. LICENSE
  27. OWNERS
  28. PATENTS
  29. README.md
  30. rustfmt.toml
README.md

Fuchsia

Pink + Purple == Fuchsia (a new operating system)

What is Fuchsia?

Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.

Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.

Read more about Fuchsia's principles.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See fuchsia.dev.