Raising my own exceptions with DRb


#1

Hi

I’m looking for a way to raise my own exceptions over drb. It’s no
problem to raise the usual/standard exceptions like ArgumentError etc.

I tried to define the Exceptions in the client and I tried to include
the DRb::DRbUndumped within the Exception class, nothing worked… the
client just throws a DRb::DRbConnError exception.

Can anybody help with this problem? I’ve attached small examples for the
server and the client…

Thanks!
reto

Server:

require ‘drb/drb’

URI = “drbunix:/tmp/ruby.socket”

class Thing
include DRb::DRbUndumped

def normal_exception
raise “aaah”
end

def own_exception
raise MyException
end

class MyException < Exception
# I tried to use DRb::DRbUndumped on the Exception class… didn’t
work
# include DRb::DRbUndumped
end
end

class Srv
def get_thing
@t = Thing.new
end
end

srv = Srv.new()

#$SAFE = 1 # disable eval() and friends

DRb.start_service(URI, srv, {:verbose => true})
DRb.thread.join

Client:

require ‘drb/drb’
class Thing
class MyException < Exception
end
end

uri = “drbunix:/tmp/ruby.socket”
DRb.start_service

c = DRbObject.new_with_uri(uri)

t = c.get_thing

begin
t.normal_exception
rescue RuntimeError => e
puts "Caught a RuntimeError: " + e.inspect
end

begin
t.own_exception
rescue Thing::MyException => e
puts "Caught a Thing::MyException: " + e.inspect
end


#2

On Jan 23, 2006, at 9:55 AM, Reto S. wrote:

for the

class MyException < Exception
^^^^^^^^^

You don’t usually want to inherit exceptions from Exception. If you
change this to RuntimeError, it works.

end

require ‘drb/drb’
class Thing
class MyException < Exception

Same here.

begin


Eric H. - removed_email_address@domain.invalid - http://segment7.net
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