Re: Bidirectional io.open()...anyone got one?

[Javier Guerra Giraldez <javier@...>]

Duck wrote:
> Forgive my ignorance, but why do you need two pipes...in other words, 

each pipe is an unidireccional channel between two ends; so you have to 
give two endpoints (one of each pipe) to the process, and use the other 
two to read and write.

what you're asking for could (in theory, i guess) would need sockets 
(which are bidirectional). you creae a socket pair (using socketpair(), 
of course), give one to the process creator and use the other to read/write

like this:

local sktA, sktB = socketpair()
local proc, err = os.spawn (stdio=sktB, ...)
-- use sktA to communicate

i don't know how hard would it be to make os.spawn accept a socket and 
use it for both stdin and stdout...

--
Javier