# `Mailglass.SuppressionStore.ETS.TableOwner`
[🔗](https://github.com/szTheory/mailglass/blob/v1.0.0/lib/mailglass/suppression_store/ets/table_owner.ex#L1)

Init-and-idle GenServer owning the `:mailglass_suppression_store` ETS
table. Same pattern as `Mailglass.RateLimiter.TableOwner` (D-22).

## ETS opts

- `:set` — single-entry-per-key
- `:public` — cross-process read/write
- `:named_table`
- `read_concurrency: true`
- `write_concurrency: :auto`
- `decentralized_counters: false` — suppression lookups are reads,
  not counter updates; `decentralized_counters` trades read speed
  for write parallelism (not what we want here).

## Key shape

ETS keys are `{tenant_id, address, scope, stream_or_nil}` tuples
(matches the Ecto UNIQUE constraint `(tenant_id, address, scope,
COALESCE(stream, ''))`).

## LIB-05 note

This module uses `name: __MODULE__`. It is library-internal machinery
(not a user-facing singleton) and documented in `docs/api_stability.md`
as a reserved singleton. Phase 6 `LINT-07 NoDefaultModuleNameSingleton`
has an allowlist entry for this module.

# `child_spec`

Returns a specification to start this module under a supervisor.

See `Supervisor`.

# `start_link`

```elixir
@spec start_link(keyword()) :: GenServer.on_start()
```

# `table`
*since 0.1.0* 

Returns the ETS table name. Public so tests can inspect state.

---

*Consult [api-reference.md](api-reference.md) for complete listing*