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<H1>[99s-extend] timeout in cowboy loop handler</H1>
<B>Loïc Hoguin</B>
<A HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20timeout%20in%20cowboy%20loop%20handler&In-Reply-To=%3C525E1A85.3070706%40ninenines.eu%3E"
TITLE="[99s-extend] timeout in cowboy loop handler">essen at ninenines.eu
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<I>Wed Oct 16 06:48:05 CEST 2013</I>
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<PRE>Then use a loop handler, set its timeout to infinity *but* create a new
timeout that checks regularly if the handler is active or not to be able
to kill it off in case something happens.
On 10/16/2013 06:42 AM, akonsu wrote:
><i> ok. the data that I need to send are coming as erlang messages to the
</I>><i> process that runs my handler. so it sounds like if I want to use the
</I>><i> "normal" cowboy_http_handler, then I need a receive loop
</I>><i> inside handle(Req, State) callback, right? Basically, my response stream
</I>><i> will potentially never end, I do not know how to handle this properly in
</I>><i> cowboy...
</I>><i>
</I>><i>
</I>><i> 2013/10/16 Loïc Hoguin <<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A> <mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>>>
</I>><i>
</I>><i> Loop handlers are designed to wait for a long time with the socket
</I>><i> *idle* and then eventually send one response then close the socket.
</I>><i> Things like long-polling.
</I>><i>
</I>><i> What you are doing is just streaming, for which you do not need a
</I>><i> timeout because the socket isn't idle. You are just sending a large
</I>><i> response, and normal handlers are perfectly capable of doing that.
</I>><i>
</I>
--
Loïc Hoguin
Erlang Cowboy
Nine Nines
<A HREF="http://ninenines.eu">http://ninenines.eu</A>
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