Sorry, I meant to reply-all. Here's what I wrote: Hello Rogelio,
If you want a return value you have to call it synchronously. The default call is asynchronous--because after all, it's a background call. That's why you're getting nil back. To make a synchronous call, pass "true" as the 2nd argument to your worker: res = MiddleMan.worker(:pdfmaker_worker, jk).getres(nil, true) In this example I used nil for the first argument because your getres function doesn't take an argument. For more info see http://backgroundrb.rubyforge.org/rails/index.html and read the section "Invoke a method on worker and get results." - Brian Morearty On Fri, Apr 18, 2008 at 11:07 AM, Roggie Boone <[EMAIL PROTECTED]> wrote: > Hi, > > I'm new to BackgroundRB and am having some trouble figuring > out what must be a simple thing. I'm in time crunch where I > need my Rails app to generate PDF files on the fly for my website > users. But before I leap into that, I'm trying to get familiar with > the basics. So I have this worker in my rails app lib/worker folder: > ============== > class PdfmakerWorker < BackgrounDRb::MetaWorker > set_worker_name :pdfmaker_worker > set_no_auto_load(true) > def create(args = nil) > # this method is called, when worker is loaded for the first time > register_status(:cnt => 0) > 1.upto 100000000 do |x| > if x % 1000 == 0 > register_status(:cnt => x) > end > end > #exit > end > > def getres > res = "Just a test" > return res > end > end > > ============================================================ > > I've written a simple program to test that worker and it is as follows: > > jk = MiddleMan.new_worker(:worker => :pdfmaker_worker, :job_key => "123", > :data => nil) > > sleep (5) > > count = 0 > > while count < 1 > pct = MiddleMan.ask_status(:worker => :pdfmaker_worker, :job_key => jk) > sleep(2) > puts "Count is: " + (pct[:cnt]).to_s > > res = MiddleMan.worker(:pdfmaker_worker, jk).getres > puts "Res is: " + res.to_s > end > ============================================================ > > I run script/console and load the above program. The worker counts up > to 10000000 and my little test program repeatedly queries the worker > and writes "Count is <whatever>" to the screen as it should. > > However, when it get to my custom method "getres" in the last > two lines of the test program, the return result for "res" is nil. The > worker doesn't crash, it just appears not to return a result. I'm sure it's > something simple, but I don't see why. > > Here is a sample output of one iteration of the simple program: > ================ > Count is: 970000000 > {:type=>:do_work, :worker=>:pdfmaker_worker, :worker_method=>:getres, > :job_key=>"123"} > Res is: > {:type=>:get_status, :worker=>:pdfmaker_worker, :job_key=>"123"} > ================ > > It looks like the call to "getres" is being recognized, but I'm obviously > missing some critical link. > > My setup: > > Ubuntu 7.10 > Ruby 1.8.6 > Rails 2.0.2 > BackgroundRB (been through several versions, latest of > which was retrieved via svn on 4/17/08 and I updated the > backgroundrb script as per install guidelines) > > Thanks in advance for your help. > > Rogelio > > ------------------------------ > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it > now.<http://us.rd.yahoo.com/evt=51733/*http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ> > > > _______________________________________________ > Backgroundrb-devel mailing list > [email protected] > http://rubyforge.org/mailman/listinfo/backgroundrb-devel > -- Brian
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