[erlang-questions] STM vs Actor Model?

Jesper Louis Andersen jesper.louis.andersen@REDACTED
Tue May 6 15:23:42 CEST 2014

On Tue, May 6, 2014 at 3:12 PM, Bin Wang <wbin00@REDACTED> wrote:

> And for "block the actor", I didn't mean the messages passing are not
> asynced. But if we write a "handle_call" in a "gen_server" that takes
> a long time to compute things for example. Then the other requests
> behind this long time request are blocked (if it wants to get some
> information from the "gen_server").

No. Not necessarily. You could return {noreply, State} in your
handle_call/3 and then spawn a background worker to do the processing. When
data comes back you can respond with gen_server:reply(From, Result). This
avoids the "head of line blocking".

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