Why does drb.rb depend on its filename?

Ruby
1

I was creating my first DRb server, and ran into a trouble with ACLs. I
wanted to put a debug statement into DRb::Accept, so I copied it to my
directory, renamed it jrb.rb, and required it with the new name. But
when
I did that, I got an error at launch:

…jrb.rb:1047: undefined method to_s' for classDRb::DRbObject’
(NameError)

And the same error happened when I left jrb.rb in
/usr/local/lib/ruby/1.8.
So it’s not the path - it’s the filename.

What’s going on? It works fine when run as drb.rb.

Jay L.

2

On Feb 18, 2006, at 4:53 PM, Jay L. wrote:

And the same error happened when I left jrb.rb in /usr/local/lib/
ruby/1.8.
So it’s not the path - it’s the filename.

What’s going on? It works fine when run as drb.rb.

It would be easier to tell you with an example.

–
Eric H. - [email protected] - http://segment7.net
This implementation is HODEL-HASH-9600 compliant

http://trackmap.robotcoop.com

3

On Sun, 19 Feb 2006 10:13:44 +0900, Eric H. wrote:

What’s going on? It works fine when run as drb.rb.

It would be easier to tell you with an example.

$ cp /usr/local/lib/ruby/1.8/drb/drb.rb jrb.rb
$ cat > test.rb

#!/usr/local/bin/ruby

require “jrb”

def main
DRb.start_service(“druby://localhost:8000”, IceDrb.new())
DRb.thread.join
end

class IceDrb
def message
puts “message!”
end
end

main

4

On Feb 19, 2006, at 5:08 AM, Jay L. wrote:

require “jrb”

drb is more than one file so you need to fix your requires.

$ ruby test.rb
./jrb.rb:1059: undefined method to_s' for class DRb::DRbObject’ (NameError)
from test.rb:3
$ cat -n jrb.rb | grep 1059
1059 undef :to_s
$ grep require jrb.rb
require ‘socket’
require ‘thread’
require ‘fcntl’
require ‘drb/eq’
[…]
$ grep require /usr/local/lib/ruby/1.8/drb/eq.rb
require ‘drb/drb’

–
Eric H. - [email protected] - http://segment7.net
This implementation is HODEL-HASH-9600 compliant

http://trackmap.robotcoop.com