On or about 1/26/10 9:41 AM, thus spake "Paul Sanders" <p.sand...@alpinesoft.co.uk>:
> Should I be scared of the 'false timeout' bug? You should if you're doing the kind of thing that triggers it. Looping in NSAppleScript over many tracks, you're almost certain to hit it. But the same thing is likely to happen even with the Scripting Bridge. On the other hand, appscript in all its flavours has now worked around it. http://db.tidbits.com/article/10643 > Mostly I just want to add > tracks to the iTunes Music Library, although an efficient way to find a track > by artist and title would be nice - scanning large libraries in AppleScript is > very slow. Well, everything depends upon (1) what you mean by "large", (2) what you mean by "scan", and (3) what language you use. NSAppleScript is your slowest choice because it slows way down as you loop and access memory (such as lists). Scripting Bridge and objc-appscript do all the heavy lifting in Objective-C and just throw Apple events at the target, so they are inherently much faster, and your bottlenecks are then your choice of Apple event and how long the target takes to process each Apple event. There is almost always a way to be faster but it may take some experiment and tweaking. See my comments on this point in my iTunes "Orphans" example for appscript (it uses rb-appscript, which is Ruby; I would expect an Objective-C version might be faster): http://www.apeth.com/rbappscript/10examples.html#orphans By the way, another nice thing I forgot to mention about objc-appscript is that it can easily be run in a background thread, so even if your operation *is* time-consuming (because the bottlenecks I mentioned above are unavoidable), the user is not necessarily oppressed by this fact. m. -- matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/ pantes anthropoi tou eidenai oregontai phusei Among the 2007 MacTech Top 25, http://tinyurl.com/2rh4pf AppleScript: the Definitive Guide, 2nd edition http://www.tidbits.com/matt/default.html#applescriptthings Take Control of Exploring & Customizing Snow Leopard http://tinyurl.com/kufyy8 RubyFrontier! http://www.apeth.com/RubyFrontierDocs/default.html TidBITS, Mac news and reviews since 1990, http://www.tidbits.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com