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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=%3C525E10FE.2020107%40ninenines.eu%3E"
TITLE="[99s-extend] timeout in cowboy loop handler">essen at ninenines.eu
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<I>Wed Oct 16 06:07:26 CEST 2013</I>
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<PRE>On 10/16/2013 05:48 AM, akonsu wrote:
><i> 1. do you mean that there is no way on the server side to tell if the
</I>><i> client has disconnected?
</I>
There are ways, and Cowboy will happily detect them. There's also the
problem that a side may be closed without the other side knowing about
it, which is why you need timeouts.
><i> 2. if I use a normal handler, I will still run into the same problem, it
</I>><i> does not matter which handler I use, from the standpoint of deciding
</I>><i> whether the client is still there, right?
</I>
If the client is gone, the send will fail. Normal handlers are pretty
much the same except they don't have a timeout, because your code has an
explicit end.
><i> I am confused as to how I can implement my streaming and not drop the
</I>><i> connection on each client and yet make sure I do close the connections
</I>><i> when the clients disconnect...
</I>><i>
</I>><i>
</I>><i> 2013/10/15 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> Infinite is bad practice, yes. Infinite means some connections will
</I>><i> *never* be closed, eating FDs and memory for nothing.
</I>><i>
</I>><i> I'm not sure why you want to receive messages, you could just use a
</I>><i> normal handler that asks for more data, sends it, ask for more data,
</I>><i> sends it, etc.
</I>><i>
</I>
--
Loïc Hoguin
Erlang Cowboy
Nine Nines
<A HREF="http://ninenines.eu">http://ninenines.eu</A>
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