When some functions require Arc<Self> due to tokio::task::spawn_blocking, what's the best practice?

[jbe]

@jonh

Take time to code as not to need Arc and spawn_blocking.

In my code I need spawn_blocking because of this:

@jbe

Note that default_net::interface::get_interfaces seems to be a somewhat expensive operation.

Maybe I should consider this to be an (ugly) implementation detail and go for variant 5. But in the particular case, it will be a private module, so I don't need to care for a clean/stable API.

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Anyway, I believe that in Rust it's usualluy idiomatic to expose the question whether an Arc is needed/consumed/created to the user of an API.