[erlang-questions] Semaphores

[ok]

On 15 Mar 2007, at 7:45 pm, Corrado Santoro wrote:
> Maybe someone reminds that, at the last EUC, the talk by Enzo  
> Nicosia on
> programming robots with Erlang presented the possibility (or  
> necessity)
> to have a *native support* for sharing simple data among processes.  
> This
> was due to avoid the latency of message passing between processes that
> need/share the same information (this latency is dangerous for a
> real-time system).

I didn't see that.  Erlang has had shared binaries for a long time,  
and the
hybrid heap provides other kinds of shared data.  What Erlang does  
not have,
and cannot have without completely destroying its simplicity of  
distribution,
is shared *mutable* data.