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Supervisor in Elixir
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=== Examples === To illustrate the usage of supervisors in Elixir, let's consider an example where we create a supervisor to manage a group of worker processes. Each worker process is implemented using the GenServer behavior. ```elixir defmodule Worker do use GenServer # Implementation of worker process and callbacks end defmodule WorkerSupervisor do use Supervisor @children [ worker(Worker, []) ] def start_link(init_arg) do Supervisor.start_link(__MODULE__, init_arg, name: __MODULE__) end def init(init_args) do supervise(@children, strategy: :one_for_one) end end ``` In this example, we define a `Worker` module that implements the GenServer behavior. We then create a `WorkerSupervisor` module that uses the Supervisor behavior to manage the worker processes. The `@children` attribute in the supervisor module specifies the child processes to be supervised. In this case, we have a single worker process. Finally, we start the supervisor by calling `Supervisor.start_link/2`, passing the supervisor module and any initialization arguments.
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