Re: using Copas with LuaSec, non-blocking ssl

[Thijs Schreijer <thijs@...>]

Aaron B. wrote
> On Thu, 23 Oct 2014 06:38:45 +0000
> Thijs Schreijer <

> thijs@

> > wrote:
> 
>> Does anyone have (a pointer to) some examples implementing this (copas
>> with luasec, or just luasec used non-blocking)?
>> 
> 
> I remember it being surpisingly simple to get LuaSec and Copas to play
> nice. In short, just call ssl.wrap() inside your handler function.
> 
> I needed it working for a project once, and it looks like my patch was
> applied:
> 
> https://github.com/lipp/tango/blob/master/tango/server/copas_socket.lua
> 
> -- 
> Aaron B. <

> aaron@

> >

Took me a while, but got into this matter rather deep. From this line [1],
it seems to me that it does not do non-blocking ssl. The timeout has a
default of 10 seconds, which means that it still might block for 10 seconds.
The LuaSec  ssl wrapper will return "wantread" or "wantwrite" on a
non-blocking socket, which doesn't seem to be handled in the code. So from
what I see, the timeout is high enough to not encounter it... (but hence it
is blocking)

Or am I missing something?

Thijs

[1]
https://github.com/lipp/tango/blob/master/tango/server/copas_socket.lua#L22




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