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<H1>[99s-extend] How to broadcaset with ranch?</H1>
<B>Loïc Hoguin</B>
<A HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20How%20to%20broadcaset%20with%20ranch%3F&In-Reply-To=%3C520F3001.5010504%40ninenines.eu%3E"
TITLE="[99s-extend] How to broadcaset with ranch?">essen at ninenines.eu
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<I>Sat Aug 17 10:10:41 CEST 2013</I>
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<PRE>On 08/17/2013 10:00 AM, Bin Wang wrote:
><i> Hi,
</I>><i>
</I>><i> I'm new to ranch. In my application, I need to send some message to
</I>><i> all connections. So I'd like to know can I get all connections from
</I>><i> ranch, so I could use Transport:send to send them, or I must manage
</I>><i> all the created connections by myself? Or is there any other better
</I>><i> way?
</I>
The best way to do that is on your end, using gproc properties. When the
connection is accepted, register the process with the property and use
the property to send messages to all processes. You don't need to
unregister when the connection ends, gproc does that automatically.
The hackish way to do that would be to call supervisor:which_children on
the ranch_conns_sup supervisor of your listener, but that will slow down
the accepting of new connections, so don't do this if you need high
accept rates.
--
Loïc Hoguin
Erlang Cowboy
Nine Nines
<A HREF="http://ninenines.eu">http://ninenines.eu</A>
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