[erlang-questions] Imagine every (active) entity is a process
Ulf Wiger (TN/EAB)
Tue Nov 6 09:27:27 CET 2007
Alexander Lamb wrote:
> Isn't there a race condition here. Since I have to check first if a
> process exists before creating it, I might end up in a situation where
> two other processes are doing the same thing and creating twice a
> process for the same entity. The second would obviously fail and we
> could catch the error. But is this a correct way of proceeding? Also,
> is it possible to have thousands of registered processes (as opposed
> to non registered processes)?
You will find a contrib called dispatcher at Trapexit.
It does pretty much exactly what you're asking for, including
taking care of the inherent race condition.
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