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   <H1>[99s-extend] timeout in cowboy loop handler</H1>
    <B>Lo&#239;c Hoguin</B> 
    <A HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20timeout%20in%20cowboy%20loop%20handler&In-Reply-To=%3C525E0AAF.3070203%40ninenines.eu%3E"
       TITLE="[99s-extend] timeout in cowboy loop handler">essen at ninenines.eu
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    <I>Wed Oct 16 05:40:31 CEST 2013</I>
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<PRE>Infinite is bad practice, yes. Infinite means some connections will 
*never* be closed, eating FDs and memory for nothing.

I'm not sure why you want to receive messages, you could just use a 
normal handler that asks for more data, sends it, ask for more data, 
sends it, etc.

On 10/16/2013 05:31 AM, akonsu wrote:
&gt;<i> thanks for your help. suppose that I want to stream live audio. I do not
</I>&gt;<i> know how long my audio program will be, and as I stream it, if I have a
</I>&gt;<i> timeout, the server will just disconnect the user that listens to the
</I>&gt;<i> audio in the browser. and the browser won't reconnect. Would you suggest
</I>&gt;<i> the &quot;right&quot; way to implement something like that? Would infinite timeout
</I>&gt;<i> suffice? or is it a bad practice? another type of handler maybe?
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i> 2013/10/15 Lo&#239;c Hoguin &lt;<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A> &lt;mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>&gt;&gt;
</I>&gt;<i>
</I>&gt;<i>     Yep. And it will also disconnect if the client sends too much. It
</I>&gt;<i>     has to disconnect and reconnect eventually, there's no way around it.
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>     On 10/16/2013 05:03 AM, akonsu wrote:
</I>&gt;<i>
</I>&gt;<i>         so it will disconnect if the client only listens and sends
</I>&gt;<i>         nothing to
</I>&gt;<i>         the socket, correct?
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>         2013/10/15 Lo&#239;c Hoguin &lt;<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>
</I>&gt;<i>         &lt;mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>&gt; &lt;mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>
</I>&gt;<i>         &lt;mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>&gt;&gt;&gt;
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>              The socket connected to the client.
</I>&gt;<i>
</I>&gt;<i>              TCP isn't perfect, there is no way to be 100% sure the
</I>&gt;<i>         client is
</I>&gt;<i>              still connected, hence the timeout. If the client is still
</I>&gt;<i>         up you
</I>&gt;<i>              should make it reconnect.
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>              On 10/16/2013 04:55 AM, akonsu wrote:
</I>&gt;<i>
</I>&gt;<i>                  Hello,
</I>&gt;<i>
</I>&gt;<i>                  the documentation for `init` at
</I>&gt;<i>         <A HREF="http://ninenines.eu/docs/en/____cowboy/HEAD/manual/cowboy_____loop_handler">http://ninenines.eu/docs/en/____cowboy/HEAD/manual/cowboy_____loop_handler</A>
</I>&gt;<i>         &lt;<A HREF="http://ninenines.eu/docs/en/__cowboy/HEAD/manual/cowboy___loop_handler">http://ninenines.eu/docs/en/__cowboy/HEAD/manual/cowboy___loop_handler</A>&gt;
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>         &lt;<A HREF="http://ninenines.eu/docs/en/__cowboy/HEAD/manual/cowboy___loop_handler">http://ninenines.eu/docs/en/__cowboy/HEAD/manual/cowboy___loop_handler</A>
</I>&gt;<i>         &lt;<A HREF="http://ninenines.eu/docs/en/cowboy/HEAD/manual/cowboy_loop_handler">http://ninenines.eu/docs/en/cowboy/HEAD/manual/cowboy_loop_handler</A>&gt;&gt;
</I>&gt;<i>                  says:
</I>&gt;<i>
</I>&gt;<i>                  The receive loop will run for a duration of up to Timeout
</I>&gt;<i>                  milliseconds
</I>&gt;<i>                  after it last received data from the socket, at which
</I>&gt;<i>         point it
</I>&gt;<i>                  will stop
</I>&gt;<i>                  and send a 204 No Content reply.
</I>&gt;<i>
</I>&gt;<i>                  What socket does it refer to? I had an impression that
</I>&gt;<i>         the loop
</I>&gt;<i>                  handles
</I>&gt;<i>                  erlang messages. Do these messages come through a
</I>&gt;<i>         socket (sorry
</I>&gt;<i>                  about a
</I>&gt;<i>                  trivial question, but I am new to erlang), and this is the
</I>&gt;<i>                  socket that
</I>&gt;<i>                  the docs talk about?
</I>&gt;<i>
</I>&gt;<i>                  The reason why I am asking is because I used to have a
</I>&gt;<i>         Timeout
</I>&gt;<i>                  of 60000,
</I>&gt;<i>                  and even though messages kept coming non stop, it still
</I>&gt;<i>         kept
</I>&gt;<i>                  disconnecting after a minute, until I set Timeout to
</I>&gt;<i>         infinity.
</I>&gt;<i>
</I>&gt;<i>                  thanks
</I>&gt;<i>                  Konstantin
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>                  ___________________________________________________
</I>&gt;<i>                  Extend mailing list
</I>&gt;<i>         <A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.ninenines.eu</A> &lt;mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.ninenines.eu</A>&gt;
</I>&gt;<i>         &lt;mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.__ninenines.eu</A>
</I>&gt;<i>         &lt;mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.ninenines.eu</A>&gt;&gt;
</I>&gt;<i>         <A HREF="http://lists.ninenines.eu:81/____listinfo/extend">http://lists.ninenines.eu:81/____listinfo/extend</A>
</I>&gt;<i>         &lt;<A HREF="http://lists.ninenines.eu:81/__listinfo/extend">http://lists.ninenines.eu:81/__listinfo/extend</A>&gt;
</I>&gt;<i>
</I>&gt;<i>                  &lt;<A HREF="http://lists.ninenines.eu:81/__listinfo/extend">http://lists.ninenines.eu:81/__listinfo/extend</A>
</I>&gt;<i>         &lt;<A HREF="http://lists.ninenines.eu:81/listinfo/extend">http://lists.ninenines.eu:81/listinfo/extend</A>&gt;&gt;
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>
</I>&gt;<i>              --
</I>&gt;<i>              Lo&#271;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>
</I>&gt;<i>
</I>&gt;<i>     --
</I>&gt;<i>     Lo&#239;c Hoguin
</I>&gt;<i>
</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>

-- 
Lo&#239;c Hoguin
Erlang Cowboy
Nine Nines
<A HREF="http://ninenines.eu">http://ninenines.eu</A>

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