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   <H1>[99s-extend] [erlang-questions]  How to broadcaset with ranch?</H1>
    <B>Sean Cribbs</B> 
    <A HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20%5Berlang-questions%5D%20%20How%20to%20broadcaset%20with%20ranch%3F&In-Reply-To=%3CCAPGJuCaYJnOn-Hq_GgQZV2pxmaUwCxbS372dapbnQiOZ8vWC%3Dw%40mail.gmail.com%3E"
       TITLE="[99s-extend] [erlang-questions]  How to broadcaset with ranch?">seancribbs at gmail.com
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    <I>Wed Aug 21 05:18:19 CEST 2013</I>
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<PRE>This is exactly the sort of thing gen_event is for. I would make each
server process register a handler at startup using
gen_event:add_sup_handler() and then have the handle_event callback simply
relay the event to the server processes. Yes, gproc can do this, but why
incur its extra features and overhead?


On Sat, Aug 17, 2013 at 3:10 AM, Lo&#239;c Hoguin &lt;<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>&gt; wrote:

&gt;<i> On 08/17/2013 10:00 AM, Bin Wang wrote:
</I>&gt;<i>
</I>&gt;&gt;<i> Hi,
</I>&gt;&gt;<i>
</I>&gt;&gt;<i> I'm new to ranch. In my application, I need to send some message to
</I>&gt;&gt;<i> all connections. So I'd like to know can I get all connections from
</I>&gt;&gt;<i> ranch, so I could use Transport:send to send them, or I must manage
</I>&gt;&gt;<i> all the created connections by myself? Or is there any other better
</I>&gt;&gt;<i> way?
</I>&gt;&gt;<i>
</I>&gt;<i>
</I>&gt;<i> The best way to do that is on your end, using gproc properties. When the
</I>&gt;<i> connection is accepted, register the process with the property and use the
</I>&gt;<i> property to send messages to all processes. You don't need to unregister
</I>&gt;<i> when the connection ends, gproc does that automatically.
</I>&gt;<i>
</I>&gt;<i> The hackish way to do that would be to call supervisor:which_children on
</I>&gt;<i> the ranch_conns_sup supervisor of your listener, but that will slow down
</I>&gt;<i> the accepting of new connections, so don't do this if you need high accept
</I>&gt;<i> rates.
</I>&gt;<i>
</I>&gt;<i> --
</I>&gt;<i> Lo&#239;c Hoguin
</I>&gt;<i> Erlang Cowboy
</I>&gt;<i> Nine Nines
</I>&gt;<i> <A HREF="http://ninenines.eu">http://ninenines.eu</A>
</I>&gt;<i>
</I>&gt;<i> ______________________________**_________________
</I>&gt;<i> erlang-questions mailing list
</I>&gt;<i> <A HREF="https://lists.ninenines.eu/listinfo/extend">erlang-questions at erlang.org</A>
</I>&gt;<i> <A HREF="http://erlang.org/mailman/**listinfo/erlang-questions&lt;http://erlang.org/mailman/listinfo/erlang-questions">http://erlang.org/mailman/**listinfo/erlang-questions&lt;http://erlang.org/mailman/listinfo/erlang-questions</A>&gt;
</I>&gt;<i>
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