Note that I also updated the book to reflect the change. - Matt
Sent from my iPhone On Jan 20, 2011, at 8:07, "Ernest N. Prabhakar, Ph.D." <prabh...@apple.com> wrote: > Hi Martin, > > On Jan 20, 2011, at 7:58 AM, Martin Hawkins wrote: >> The Ruby programming Language - David Flanagan and Yukihiro Matsumoto >> The Well-Grounded Rubyist - David A. Black >> Programming Ruby - Dave Thomas >> >> None of the above are focussed on the web. >> Back to Grand Central Dispatch which was really the topic of the post >> - Dispatch and Dispatch::Group are available from macirb, but >> Dispatch::Job is not, so I suppose I'm really saying that in trying to >> discover what is available re GCD for macruby, the current >> documentation is confusing. > > My apologies. The GCD primitives are "baked in" to MacRuby as part of the > Dispatch module. You should be able to do "ri Dispatch" from the shell, or > "help Dispatch" from inside MacRuby. > > To get the high level routines you would require Dispatch, for which you need > to first install the gem. > > http://rubygems.org/gems/dispatch > https://github.com/gunn/dispatch > > The short answer is that Job, Proxy, and Enumerable are only in the gem, > while Queue, Semaphore and Source are built-in. The gem includes some > convenience methods for those, though, so it isn't entirely clear-cut. > > -- Ernie P. > >> >> On Jan 20, 3:46 pm, Johannes Fahrenkrug <jfahrenk...@gmail.com> wrote: >>> Hi David, >>> >>> I always thought the official tutorial on the Ruby site is pretty good: >>> >>> http://www.ruby-lang.org/en/documentation/quickstart/ >>> >>> It is also normal practice to keep non-standard ruby functionality out of >>> core and distribute is as a gem. That should not discourage you from using >>> MacRuby or make you doubt that you can use it for Mac development now or in >>> the future. >>> >>> Johannes >>> >>> Sent from my iPhone >>> >>> On 20.01.2011, at 07:29, David Frantz <websterindus...@mac.com> wrote: >>> >>> >>> >>> >>> >>>> Ok, forgive me for this question as I'm not a practicing Ruby programmer >>>> but why would Dispatch not be part of Mac Ruby? >>> >>>> For those wondering why I've been hanging out here for the last couple of >>>> months it is due to the thought that Mac Ruby might become an officially >>>> supported platform for Mac development. So I'm trying to wrap my head >>>> around why people would use it (Ruby) instead of C/C++/Objective C or >>>> Python for that matter. Frankly I think I need convincing in another way >>>> so the next question is this, is there a good intro to Ruby that isn't >>>> oriented to web development? My interest in the web is close to zero and >>>> unfortunately most Ruby books seem to be focused there. Either that or >>>> my mind just isn't oriented to the Ruby way. >>> >>>> David A Frantz >>>> websterindustro4at4mac.com >>> >>>> Sent from my iPhone. >>> >>>> On Jan 20, 2011, at 9:56 AM, Mark Rada <mr...@marketcircle.com> wrote: >>> >>>>> The dispatch library was removed from the core just before the 0.8 >>>>> release. Someone is maintaining it as a gem. >>> >>>>> I thought the dispatch library only had the Enumerable module extensions, >>>>> but I guess it had the Job class as well since I also don't have it >>>>> (using a 0.9 nightly build). >>> >>>>> Someone who has better knowledge than me might be able to answer your >>>>> questions more thoroughly. >>> >>>>> Mark Rada >>>>> mr...@marketcircle.com >>> >>>>> On 2011-01-20, at 9:48 AM, Martin Hawkins wrote: >>> >>>>>> I was looking at the short intro to GCD in Matt's book 'Macruby - The >>>>>> Definitive Guide' >>> >>>>>> I have macruby 0.8 and I come across an immediate problem >>>>>> macirb --simple-prompt >>>>>>>> require 'dispatch' >>>>>> LoadError: no such file to load -- dispatch >>> >>>>>> However, it knows about Dispatch: >>>>>> macirb --simple-prompt >>>>>>>> @queue = Dispatch::Queue.new('a-queue-name') >>>>>> => a-queue-name >>> >>>>>> but it doesn't know about Job: >>>>>> macirb --simple-prompt >>>>>>>> job = Dispatch::Job.new { slow_operation } >>>>>> NameError: uninitialized constant Dispatch::Job >>> >>>>>> and, finally, the line on p24, 'To see the available concurrent >>>>>> enumerable methods' >>>>>> macruby -rdispatch -e "puts [].methods.grep(/^p_/)" >>>>>> no such file to load -- dispatch (LoadError) >>>>>> which, I suppose, just reiterates the first point. >>> >>>>>> Is there an 'official' site where I can post queries regarding this >>>>>> book? >>>>>> _______________________________________________ >>>>>> MacRuby-devel mailing list >>>>>> macruby-de...@lists.macosforge.org >>>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >>> >>>>> _______________________________________________ >>>>> MacRuby-devel mailing list >>>>> macruby-de...@lists.macosforge.org >>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >>>> _______________________________________________ >>>> MacRuby-devel mailing list >>>> macruby-de...@lists.macosforge.org >>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >>> >>> _______________________________________________ >>> MacRuby-devel mailing list >>> MacRuby-de...@lists.macosforge.orghttp://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >> _______________________________________________ >> MacRuby-devel mailing list >> MacRuby-devel@lists.macosforge.org >> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel > > _______________________________________________ > MacRuby-devel mailing list > MacRuby-devel@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
