[reSIProcate] epoll prototype patch

[Adam Roach]

On 11/16/10 19:12, Nov 16, Francis Joanis wrote:
> Do we know if the current build scripts are all still in use and 
> working (I mean all the targets and options - I mainly only use the 
> core ones myself)? If it turns out only a subset of them are really 
> required it will probably not be a huge task to port the build system 
> to something like CMake.

Yes, by and large, they are. I just took a quick scan through the 
options that the configuration script takes care of. For each option in 
the small handful that I don't use myself, I can easily identify someone 
who does.

There may be a bit of cruft in the files in the build directory -- for 
example, the old and deprecated "armcross" target and the now unused 
"LNDIR" stuff -- but I think most of the contents of that directory are 
pretty much in use nowadays.

> As for using libevent directly in reSIProcate, this could be very 
> interesting (since it looks like it is already doing the best event 
> "selection" abstractions per OS). We would need to see if it would 
> easily integrate within the threading model of the SipStack (I'm 
> thinking process/buildFdSet).

I haven't looked at the epoll patch, but I imagine that whatever 
technique Kennard has used should for epoll should translate pretty 
directly into libevent.

That said, when I took a look at doing exactly this (several years ago), 
I concluded that doing it in a clean fashion that takes full advantage 
of an event model would be fairly major surgery.

/a