Re: io.popen processes hanging around after close

[Philipp Janda <siffiejoe@...>]

Am 28.10.2013 18:05 schröbte Rena:
> #!/usr/bin/env lua5.1
> local posix = require('posix')
> local function spawn(program, ...)
>      local read, write = posix.pipe()
>      local cpid = posix.fork()
>      if cpid == 0 then --child
           assert(posix.dup2(write, 1)) -- replace stdout with pipe-end
>          assert(posix.execp(program, ...))
>      else return {read=read, write=write, pid=cpid}
>      end
> end
>
> local proc = assert(spawn('ping', '127.0.0.1'))
> while true do
>      local data = assert(posix.read(proc.read, 1024))
>      print("ping says:", data)
> end
>
> but ping doesn't write to the pipe, and just outputs to my terminal instead.

HTH,
Philipp