[Ironruby-core] Asynchronous Calls

Orion Edwards orion.edwards at gmail.com
Fri Jan 22 00:19:06 EST 2010


What do you mean by "set up asynchronous calls"?

If your get_settings method is a C# method using the IAsyncResult pattern, then you should be able to invoke it from IronRuby.
From memory you can pass a ruby Proc in place of the AsyncCallback and it should all work:

Example:

callback = lambda{ |asyncresult| puts data.end_get_settings(asyncresult) }
data.begin_get_settings("abc", callback, nil)

If you want to write your own asynchronous method not involving C# at all, then you can do that too. If that's the case, then all you really need to do is remember to call the block when you're done.

Example

def get_settings(&block)
   do_long_thing
   settings = 123
   block.call(settings)
end

In a real function you'd probably run the body of get_settings in another thread, but I won't go into how to do threading, as there may be other better ways depending on your situation.

Cheers


On 22/01/2010, at 11:58 AM, Randall Sutton wrote:

> Is there a way to setup asychronous calls in IronRuby.  I've used things like WebClient.download_string_async, but I'm wondering if I can setup an async using just IronRuby.
> 
> For example:
> @data.get_settings do |settings|
> 	# do stuff after async call
> end
> 
> Where get_settings is an async method and it executes the block after it is completed.
> 
> Thanks for any help,
> Randall
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> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core



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