0e718abe27
Codex flagged that `profile use`, `profile reload`, `route set`, and
`route unset` updated overlay state and (sometimes) propagated DSP
configs but never asked the registry thread to re-route existing
streams. The new policy only applied to *future* connections;
anything already routed kept its old explicit links until the app
disconnected.
The plumbing was actually already in place from F1 — the bypass
toggle posted `PwCommand::ReevaluateAll`, the registry handled it,
and `reevaluate_all` iterated the `known_streams` cache. This
commit is just the missing call sites: a `post_reevaluate(state)`
helper that reads `state.pw_command_tx` and sends
`ReevaluateAll`, called after each of the four mutating IPC ops.
`execute_reload` (which the profile-watcher also calls) gets the
post too, so editing a TOML on disk now re-routes live streams.
Tests
All 188 still pass; clippy clean.
Live verification
Sine flowing through `headroom-processed` while the daemon is
on the `layer-a-test` profile (default_route = processed):
- `headroom profile use bypass-all` → pw-cat's explicit link
flips from processed → Mbox within ~50 ms (one drain tick).
- `headroom profile use layer-a-test` → flips back to
processed.
- Layer A tap link survives both transitions (orthogonal,
unaffected by bus rerouting — same invariant as F1).
Adjacent issue noted (not in F2 scope)
`headroom route set <app> <route>` only writes the rule's
`process_binary` field. Streams that don't advertise
`application.process.binary` (pw-cat is one) can't be matched
by this single-field rule even though they have an
`application.name`. The fix is either to widen `route.set` into
a smarter "match by app label" verb (which would either need a
new OR-across-fields matcher kind or a CLI flag to pick which
field) or to teach the materialiser to produce both
process_binary AND application_name rules with the same name,
with the matcher then OR'd. Either way it's a separate UX bug;
filed as a follow-up.
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| .. | ||
| headroom-cli | ||
| headroom-client | ||
| headroom-core | ||
| headroom-dsp | ||
| headroom-ipc | ||