pub type QoSOverrideCode = (&'static str, u8, u8, u32);Expand description
Issue 0303 — the wire form a baked QoS override travels in:
(topic, role, policy, value), all primitives.
One numbering for every language: nros_qos_override_t (C),
nros_cpp_qos_override_t (C++), RuntimeCtx::qos_overrides (the Rust
entry bake) and NodeRecord::qos_overrides are all THIS tuple. Codes rather
than QoSOverride because the table crosses the C ABI and rides
nros-platform, which sits below this crate in the layer graph.
topic is &'static because every producer bakes a literal.