[netstack3] Use zx::Time instead of std::time::Instant for timers

- Previously, we used std::time::Instant because the core's
  EventDispatcher trait used that type in order to avoid a platform-
  specific dependency on zx::Time; this required some gymnastics,
  and meant that we had an open TODO to figure out how to convert
  from std::time::Instant to zx::Time
- Now that the EventDispatcher trait provides an abstraction for
  the instant at which a timer is scheduled, we can just use zx::Time
  directly without exposing that detail to the core, and thus avoid
  violating the core's platform-agnosticism requirement
- This also allows us to implement EventDispatcher::schedule_timeout_instant,
  which was previously a TODO for the reasons described above

NET-2367 #done

Change-Id: Ic40de7fbaed7ac1f1861cc60f3db14c8937cf743
2 files changed
tree: cc031aba592b2fec7a278651a5602a1f10a37b75
  1. boards/
  2. build/
  3. buildtools/
  4. bundles/
  5. docs/
  6. examples/
  7. garnet/
  8. peridot/
  9. products/
  10. scripts/
  11. sdk/
  12. src/
  13. third_party/
  14. tools/
  15. zircon/
  16. .clang-format
  17. .clang-tidy
  18. .dir-locals.el
  19. .gitattributes
  20. .gitignore
  21. .gn
  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.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See the documentation.