[erlang-questions] How to solve the blocking accept call in a tcp_listener process ?
Tue May 19 23:30:40 CEST 2009
James Hague wrote:
>> Many examples uses the async_accept primitive from the module prim_inet.
>> This primitive is not documented (low level) and might change or dissapear.
>> Do you know examples which don't use it but use a "clean" solution for the blocking accept call ?
>> Or could you show an elegant solution in this forum ?
> You could always put the blocking call into it's own process. When a
> connection occurs, change the port's owner and send the port in a
> message. (And open the port in passive mode to make sure messages
> aren't received before switching the owner.)
The way I've always done it is to spawn the acceptor as:
L = listen(...),
Top = self(),
Sock = accept(L),
Top ! one_more,
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