netclock implements the fuchsia.time.Utc protocol.
Because netclock is implemented in Rust, we recommend that you have consulted the Fuchsia docs on developing with Rust.
Generate a Cargo.toml for your editor to use:
fx gen-cargo //src/sys/netclock:bin
fx rustdoc src/sys/netclock:bin --open
netclock itself is included in the core product configuration, no specific fx set is needed to ensure it is included in an image. You may wish to build only a small image like core‘s while working on this service. Our tests must be included explicitly in your device’s package universe:
fx set PRODUCT.ARCH --with //src/sys/netclock:tests
After this, fx build will include the test package as well.
Once you have your build working:
fx shell killall netclock_bin_test.cmx ; fx run-test netclock_bin_test
This command ensures that any previous instances of the test have been exited before running again. Because deadlocks (and the need to exit them with ctrl+c) are common when writing event notification tests, dead test instances can stack up quickly during a development session.
Minimum before submitting a CL: fx rustfmt //src/sys/netclock:bin. Prefer fx format-code.