# `Membrane.UtilitySupervisor`
[🔗](https://github.com/membraneframework/membrane-core/blob/v1.2.6/lib/membrane/utility_supervisor.ex#L1)

A supervisor responsible for managing utility processes under the pipeline's
supervision tree.

The supervisor is spawned with each component and can be accessed from callback contexts.

`Membrane.UtilitySupervisor` does not restart processes. Rather, it ensures that these utility processes
terminate gracefully when the component that initiated them terminates.

If a process needs to be able to restart, spawn a dedicated supervisor  under this supervisor.

## Example

    def handle_setup(ctx, state) do
      Membrane.UtilitySupervisor.start_link_child(
        ctx.utility_supervisor,
        {MySupervisor, children: [SomeWorker, OtherWorker], restart: :one_for_one})
    end

# `t`

```elixir
@type t() :: pid()
```

The pid of the `Membrane.UtilitySupervisor` process.

# `start_child`

```elixir
@spec start_child(t(), Supervisor.child_spec() | {module(), term()} | module()) ::
  Supervisor.on_start_child()
```

Starts a process under the utility supervisor.

Semantics of the `child_spec` argument are the same as in `Supervisor.child_spec/2`.

# `start_link_child`

```elixir
@spec start_link_child(t(), Supervisor.child_spec() | {module(), term()} | module()) ::
  Supervisor.on_start_child()
```

Starts a process under the utility supervisor and links it to the current process.

Semantics of the `child_spec` argument are the same as in `Supervisor.child_spec/2`.

---

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