From: Worky Workerson <worky.workerson@...>
Date: 2007-03-21T02:12:33+09:00
Subject: Re: Passing File Descriptors?

On 3/19/07, Gary Wright <gwtmp01@mac.com> wrote:
>
> On Mar 19, 2007, at 12:43 PM, Worky Workerson wrote:
> > Is there a ruby way to pass file descriptors to separate processes?
> > I'm thinking of interfacing with a C program, which uses the
> > SCM_RIGHTS cmsg over a unix-domain socket ... is this idiom
> > implemented in Ruby?  How would I marshall an IO object into (and out
> > of) the integer file descriptor, or does this "just work"?
>
> After a little investigation, this turned out to be easier than
> I thought.
...
> clientfile  = client.recv_io
> puts "parent received fd: #{clientfile.fileno}, contents:"

Sweet, thanks!  I guess I had missed the {send,recv}_io methods.
They're not in the Ruby book ... guess I should have done to the
online docs.  Ruby does make this trivial ... even works with my
existing C program.

-Mike