From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-07-09T03:16:41+09:00
Subject: Re: Threads: Different behavior under Linux and Windows


On Jul 8, 2008, at 11:59 AM, Armin Armbruster wrote:

> So now I'm stuck. Here's what I really want to do, maybe someone can
> show me a solution to this?
> I'd like to write a little terminal application.
>
> 1. Open a serial port
> 2. Create a sender task that waits for user input on stdin and sends  
> the
> data out the serial port.
> 3. Create a receiver task that waits for data coming from the serial
> port and output it on the screen.
>
> Any suggestions?
>
> Thanks,
> Armin

seems like a class case of using select?

if select( [stdin, serial], nil, nil, 0.2 )
   ...




steve shreeve has had some luck using this paradigm:



require 'socket'

def socketpair
  if RUBY_PLATFORM.include?("win32")
    listen = TCPServer.new('127.0.0.1', 0)
    client = TCPSocket.new('127.0.0.1', listen.addr[1])
    server = listen.accept and listen.close
    [client, server]
  else
    UNIXSocket.socketpair
  end
end

c,s = socketpair

require 'win32/process'
info = Process.create(
  'app_name' => 'cmd /c "type d:\four_megs.txt & pause"',
  'startup_info' => {
    'stdin'  => c,
    'stdout' => c,
  }
)
c.close # needed?


to get nonblocking (in a thread) io on windows.



regards.

a @ http://codeforpeople.com/
--
we can deny everything, except that we have the possibility of being  
better. simply reflect on that.
h.h. the 14th dalai lama