From: matz@... (Yukihiro Matsumoto)
Date: 2004-07-29T18:01:22+09:00
Subject: Re: IO issues: forking, select, and duplexing

Hi,

In message "IO issues: forking, select, and duplexing"
    on 04/07/29, Hal Fulton <hal9000@hypermetrics.com> writes:

|Suppose I have a source and a sink of data. These are IO-like,
|but you can't do a select on them.
|
|I'd like to be able to do a select.
|
|I'd also like to treat these as a single IO object.

If your IO-like object contains a reference to a real IO object that
can be a target of select, you can call select on the IO-like object
by just adding "to_io" method that returns real IO object.

|So I thought: Well, I'll fork a TCPServer.

If you really need full duplex IO object using fork, how about using
"open" instead of TCPServer:

  open("|-", "w+") do
     # the code to copy from STDIN to IO-like
     # and from IO-like to STDOUT
  end

							matz.