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On Wed, Jul 1, 2015 at 8:00 AM, Jorge <> wrote:
On 01/07/15 13:28, Bernd Eggink wrote:
luaposix has a function fileno(file) wich does this.

Thanks for the pointer. Nevertheless, pull luaposix as dependence in only to use a hack over luasocket looks weird... Why not use luaposix's select() then?

What about using Alien [1] to declare a binding to that function? (fileno) It is one more dependency, yes, but it might be lighter than luaposix (don't know, really).