August 2010 - MacRuby-devel - lists.macosforge.org

ControlTower Concurrency Example
by Matthew Smith 19 Aug '10

19 Aug '10

I've written a ControlTower RackUp example and would appreciate your feedback. It's intent is to showcase the GCD-backed concurrency of ControlTower and uses Cocoa's XML document parsing to process a data feed from a third-party. Thanks, Matthew Smith

2 1

MacRuby port of Sketch sample
by Dave Baldwin 17 Aug '10

17 Aug '10

I have completed porting the Apple sample "Sketch" to MacRuby and it can be found here: http://github.com/davebaldwin/Ruby-Sketch As far as I can tell it behaves in an identical way to the original Sketch example (excluding scripting support). I am happy for this to become part of the MacRuby distribution. Dave.

2 4

MacRuby Devel Beginner Question
by Jeff Hemmelgarn 16 Aug '10

16 Aug '10

Hello, First I want to thank everyone involved in the project for their efforts in bringing MacRuby to us. I love being able to use GCD with ruby! I have been on vacation for a week and finally feel like touching a computer again so I thought I would look into doing some MacRuby development. Since I have no experience with llvm and almost none with ObjectiveC, I decided to pick a low-priority, narrow focus bug to look into. That should allow me to get used to the environment without going too far into the weeds. I pretty much randomly chose #502 Marshalling large integers returns wrong value. I have downloaded and built both llvm and the latest code from the git mirror. I have been trying to reproduce the problem with macirb under gdb. I have some experience with gdb but I am getting confused trying to set a breakpoint in the Marshal package load function. It looks like MacRuby is bypassing the globally visible function rb_marshal_load and using rb_objc_define_method to export a pointer to the file local function marshal_load. The basics of the question is, how do I set a breakpoint in gdb for this function? Is this problem a result of using llvm? Will I end up needing to set a generic breakpoint in a dispatch routine with a condition looking for the selector for the load function? Thank you in advance for any help! Jeff Hemmelgarn

3 4

Re: [MacRuby-devel] Warnings from print operation
by Laurent Sansonetti 16 Aug '10

16 Aug '10

Hi Robert, (Please mail the list, not me directly.) On Aug 15, 2010, at 8:20 PM, Robert Rice wrote: > Hi Laurent: > > My application has grown to over 200 files, but I could probably create a small project to create these errors, however, if the problem has to do with my MacRuby or framework installation, as I suspect, then the errors might not be reproducible on your system. Maybe. Did you see if you call these deprecated APIs by yourself in your project? Could you show the printing code at least? Also, I would check the Xcode project settings to see if you're not building for 10.5. Did these warnings just appear now? Larent > On Aug 15, 2010, at 10:51 PM, Laurent Sansonetti wrote: > >> Could you show your source code? Just from what you pasted I would assume you're using deprecated APIs. >> >> Laurent >> >> On Aug 15, 2010, at 3:19 PM, Robert Rice wrote: >> >>> Hi Thibault Martin-Lagardette: >>> >>> Yes, but the deprecated calls are originating from NSView. Printing had stopped working for the views in my application so I tried creating my own PrintOperation and ran it modally for my window instead of routing the print command directly to the view. Then the warnings appeared. Could my project be linked to an old framework or Ruby library? >>> >>> Thanks, >>> Bob Rice >>> >>> >>> On Aug 15, 2010, at 5:24 PM, Thibault Martin-Lagardette wrote: >>> >>>> It looks like you are using deprecated APIs from the printing Framework. These are clearly not ruby errors, but deprecated objective-c calls :-) >>>> >>>> -- >>>> Thibault Martin-Lagardette >>>> >>>> >>>> >>>> On Aug 15, 2010, at 09:44, Robert Rice wrote: >>>> >>>>> Hi Developers: >>>>> >>>>> I get the followings warning from my PrintOperation: >>>>> >>>>> SimpleX_ViewController.print >>>>> 2010-08-15 12:25:12.609 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginPrologueBBox:creationDate:createdBy:fonts:forWhom:pages:title:] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.610 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endHeaderComments] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.612 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endPrologue] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.613 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.614 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.615 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginPage:label:bBox:fonts:] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.615 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginPageSetupRect:placement:] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.616 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) addToPageSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.617 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endPageSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.617 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginTrailer] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> 2010-08-15 12:25:12.618 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endTrailer] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. >>>>> >>>>> Looks like I may need to update something. Would this be a framework or a Ruby library? How would I update my system? >>>>> >>>>> Thanks, >>>>> Bob Rice >>>>> >>>>> _______________________________________________ >>>>> MacRuby-devel mailing list >>>>> MacRuby-devel(a)lists.macosforge.org >>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >>>> >>>> _______________________________________________ >>>> MacRuby-devel mailing list >>>> MacRuby-devel(a)lists.macosforge.org >>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >>> >>> _______________________________________________ >>> MacRuby-devel mailing list >>> MacRuby-devel(a)lists.macosforge.org >>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >> >> _______________________________________________ >> MacRuby-devel mailing list >> MacRuby-devel(a)lists.macosforge.org >> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >

2 1

Error on a new project
by Manu 16 Aug '10

16 Aug '10

Hi, I am using OSX 10.6.4 and MAcRuby 0.6. I created a new project and just simply added to the MainWindow.nib an Image browser an then built When Running the project in Xcode I get a SIGABRT.... So I ended up looking in a console what happened... AndI get the following error message Any idea what I am missing or doing wrong? uncaught Objective-C/C++ exception... 2010-08-15 11:54:20.089 iWarranty[55002:903] An uncaught exception was raised 2010-08-15 11:54:20.091 iWarranty[55002:903] *** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (IKImageBrowserView) 2010-08-15 11:54:20.093 iWarranty[55002:903] *** Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: '*** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (IKImageBrowserView)' *** Call stack at first throw: ( 0 CoreFoundation 0x00007fff863edcc4 __exceptionPreprocess + 180 1 libobjc.A.dylib 0x00007fff823ff0f3 objc_exception_throw + 45 2 CoreFoundation 0x00007fff863edae7 +[NSException raise:format:arguments:] + 103 3 CoreFoundation 0x00007fff863eda74 +[NSException raise:format:] + 148 4 Foundation 0x00007fff8558ea86 _decodeObjectBinary + 2427 5 Foundation 0x00007fff8558f805 -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1229 6 Foundation 0x00007fff8558fd45 -[NSArray(NSArray) initWithCoder:] + 462 7 Foundation 0x00007fff8558eaff _decodeObjectBinary + 2548 8 Foundation 0x00007fff8558df79 _decodeObject + 208 9 AppKit 0x00007fff8833a47a -[NSView initWithCoder:] + 362 10 Foundation 0x00007fff8558eaff _decodeObjectBinary + 2548 11 Foundation 0x00007fff8558df79 _decodeObject + 208 12 AppKit 0x00007fff8834883b -[NSWindowTemplate initWithCoder:] + 3824 13 Foundation 0x00007fff8558eaff _decodeObjectBinary + 2548 14 Foundation 0x00007fff8558f805 -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1229 15 Foundation 0x00007fff8558f248 -[NSSet(NSSet) initWithCoder:] + 447 16 Foundation 0x00007fff8558eaff _decodeObjectBinary + 2548 17 Foundation 0x00007fff8558df79 _decodeObject + 208 18 AppKit 0x00007fff882ca55a -[NSIBObjectData initWithCoder:] + 1983 19 Foundation 0x00007fff8558eaff _decodeObjectBinary + 2548 20 Foundation 0x00007fff8558df79 _decodeObject + 208 21 AppKit 0x00007fff882c9c89 loadNib + 146 22 AppKit 0x00007fff882c91e9 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 248 23 AppKit 0x00007fff882c9021 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 326 24 AppKit 0x00007fff882c65a3 NSApplicationMain + 279 25 ??? 0x0000000101201300 0x0 + 4313846528 26 libmacruby.dylib 0x000000010013d81a rb_vm_dispatch + 3450 27 ??? 0x0000000101200630 0x0 + 4313843248 28 libmacruby.dylib 0x000000010014f9ac rb_vm_run + 348 29 libmacruby.dylib 0x00000001000431e9 ruby_run_node + 73 30 libmacruby.dylib 0x000000010014fcb8 macruby_main + 360 31 iWarranty 0x0000000100000eaf main + 40 32 iWarranty 0x0000000100000d20 start + 52 ) terminate called after throwing an instance of 'NSException' Abort trap Thanks Emmanuel

3 2

unrecognized runtime type `{OpaqueExtAudioFile}
by Emil Tin 15 Aug '10

15 Aug '10

I'm trying to load audio data using ExtAudioFileOpenURL() in the AudioToolbox, but seem to have a problem with the pointer gymnastics involved. First I created a BridgeSuppport file using: gen_bridge_metadata -f AudioToolbox -o AudioToolbox.bridgesupport I'm then using code like this: #load bridgesuppport file framework 'AudioToolbox' load_bridge_support_file "#{File.dirname(__FILE__)}/AudioToolbox.bridgesupport" #open audio file fileURL = NSURL.fileURLWithPath "#{File.dirname(__FILE__)}/Blow.aiff" fileRef = Pointer.new_with_type '^{OpaqueExtAudioFile}' raise "Can't open audio file" unless ExtAudioFileOpenURL(fileURL, fileRef)==0 #ok #read audio file ioNumberFramesPtr = Pointer.new_with_type 'I' ioNumberFramesPtr[0] = 800 ioDataPtr = Pointer.new_with_type '^{AudioBufferList}' raise "Can't read audio file" unless ExtAudioFileRead(fileRef[0], ioNumberFramesPtr, ioDataPtr)==0 # error but runnig this from xcode the last line causes: /Users/emiltin/Desktop/builds/Debug/Waveform.app/Contents/Resources/MyView.rb:101:in `awakeFromNib': unrecognized runtime type `{OpaqueExtAudioFile}' (TypeError) from /Users/emiltin/Desktop/builds/Debug/Waveform.app/Contents/Resources/rb_main.rb:11:in `<main>' The problem seem to occur where I access fileRef[0]. Am I doing something wrong here? Thanks, Emil From the generated BridgeSupport file: <function name='ExtAudioFileOpenURL'> <arg type='^{__CFURL=}'/> <arg type='^^{OpaqueExtAudioFile}'/> <retval type='l'/> </function> <function name='ExtAudioFileRead'> <arg type='^{OpaqueExtAudioFile=}'/> <arg type='^I'/> <arg type='^{AudioBufferList=I[1{AudioBuffer=II^v}]}'/> <retval type='l'/> </function>

1 0

Fibers and Enumerators
by Scott Thompson 13 Aug '10

13 Aug '10

I recently had a discussion on a separate list about Coroutines and Cooperative Multitasking on Mac OS X. The general result of that discussion was that the "best" solutions were to either rely on the (deprecated) Carbon Thread Manager, use a more complex scheme involving pthreads and semaphores to emulate cooperative multitasking, or look at a third party library which uses hand-rolled assembly to replace the (deprecated, non-POSIX) makecontext, swapcontext and friends. In the course of that discussion, I looked to see how MacRuby might be implementing Fibers (which is a coroutines mechanism similar to the one I was looking for) and found that, at the moment, it doesn't. The Fiber code is commented out (at least in the few places in the source I looked at). Have you given some thought as to how that feature might be implemented? I suppose with the Ruby interpreter that the "co-routine" might be handled using internal features of the interpreter itself (the "green threads", fabled in song and story). At the same time, it seems like all the work that went into improving Ruby's threading system as implemented by MacRuby might have made it harder to use the "green threads". I'm more curious than anything else, but has someone thought of a clever way to handle cooperative multitasking in MacRuby? Scott

11 30

MacRuby hanging
by Robert Rice 13 Aug '10

13 Aug '10

Hi MacRuby developers: Using MacRuby 0.6 stable, the most time consuming problem debugging is the tendency of MacRuby to hang without generating an error when calling an undefined method name. I usually can breakpoint until I find my error but occasionally the undefined method is called from a UI element and it is hard to find the error. Have the error diagnostics been improved since the 0.6 stable release? Thanks, Bob Rice

3 3

PDF_View - Quartz Framework
by Robert Rice 12 Aug '10

12 Aug '10

I recently added the Quartz framework and a PDF_View to my app. The PDF_View works great except for these warnings when I start my app: 2010-08-12 10:49:45.297 MacDriverLog[265:a0f] [QL] image sp_zoomp_handle not found 2010-08-12 10:49:45.300 MacDriverLog[265:a0f] [QL] image sp_zoomp_track_left not found 2010-08-12 10:49:45.301 MacDriverLog[265:a0f] [QL] image sp_zoomp_track_center not found 2010-08-12 10:49:45.304 MacDriverLog[265:a0f] [QL] image sp_zoomp_track_right not found 2010-08-12 10:49:46.331 MacDriverLog[265:a0f] __CFServiceControllerBeginPBSLoadForLocalizations timed out while talking to pbs Do I need to be concerned with these messages? Although my PDF_View works both for display and printing, My other views now create an invalid graphics context when printing although they still display OK. After the call to beginDocument, NSPrintOperation.currentOperation.context is nil and NSGraphicsContext.currentContext.graphicsPort is invalid. Calling NSPrintOperation.currentOperation.createContext changes the context to NSPrintSpoolingGraphicsContext but then my app just hangs. Has anyone experienced this problem? I am using MacRuby 0.6 stable release. Thanks for your help, Bob Rice

2 1

NSBitmapImageRep representationUsingType
by Kenny Lovrin 12 Aug '10

12 Aug '10

Hey guys I have a piece of code that runs in a background thread, and it crashes randomly. I can't see any structure to the crashing, other than it always seem to crash at the following line: jpeg_data = rep.representationUsingType NSJPEGFileType, properties:options Are there any known issues with this and macruby, or am I wrong somewhere else? I tried running it both on the main thread and also by using sync instead of async when i dispatch the thread to the queue, but it still crashes randomly. I'm not entierly sure how to debug this, all I get in the log is an EXC_BAD_ACCESS and then it stops in my editor at objc_msgSend. Any ideas? :) PS. I need to rescale an image, if anyone know any other way that works in a background thread please share. :) Thanks! Kenny

4 5