The process - deep dive into Elixir processes

[derek-zhou]

@ityonemo

I’m pretty sure the only requirement is that you be able to launch the child process with some MFA that returns one of {:ok, pid}, {:error, reason}, or :ignore, where pid is linked.

True, but there are also some conventions one should follow:

• This MFA shall be named start_link
• start_link shall spawn_link to another MFA, usually called init
• init shall call exit(:shutdown) if it ever wants to exit on its own.
• a child_spec/1 function will make life easier for integration into a supervision tree.