Commit Graph
5 Commits
Author SHA1 Message Date
Nils Andreas Svee 48a50d7f3a tests: rework the actually useful tests to live in the integration crate
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2026-10-03 13:59:38 +07:00
Nils Andreas Svee d3f93a9370 fix(server): use kernel receive time for wall timestamps
An echo reply's receive wall timestamp now prefers the kernel arrival
reading the Linux listener captured, where that reading is plausible for
the datagram it describes. That removes socket-queue and runtime wakeup
latency from the upstream one-way delay a client computes, and it is the
only thing the observation is allowed to change.

The runtime reaches the core through a crate-private entry point taking
the optional observation as an explicit per-datagram argument; the public
ServerCore::handle_datagram is unchanged in signature and in behavior, and
both run one implementation. There is no "next receive timestamp" side
channel and no clock wrapper.

ClockSample stays one paired userspace instant: the preferred wall value
is carried beside it on the classified echo, never inside it. Lifecycle,
rate and maximum-duration policy remain on received_at.mono_ns, midpoints
remain the mean of the paired userspace samples, and no monotonic instant
is estimated from a wall reading. A reading that does not convert, that is
later than the core's own sample, or that lags it by more than one second
falls back to the userspace wall; it is never a reason to drop a datagram.
2026-08-15 13:46:29 +07:00
Nils Andreas Svee 683b52d334 feat(server): add lifetime negotiation policy 2026-08-13 00:24:42 +07:00
Nils Andreas Svee cce2ff731a fix(server): order an echo reply's timestamp pair 2026-08-12 23:47:34 +07:00
Nils Andreas Svee 8abab7ee38 feat(server): implement echo core 2026-08-12 23:21:02 +07:00