App crashing when adding to Open Recent menu

Hi, For one of my users my application is always crashing when it tries to add an entry to the "Open Recent" menu via: [[NSDocumentController sharedDocumentController] noteNewRecentDocumentURL: [NSURL fileURLWithPath:folderPath]] He is running Mac OS X Lion Server 10.7.2. Full stack trace

Re: Locks

On Dec 7, 2011, at 12:07 PM, Jean-Daniel Dupas wrote: > > Le 7 déc. 2011 à 06:10, Ken Thomases a écrit : > >> On Dec 6, 2011, at 10:05 PM, Don Quixote de la Mancha wrote: >> >> You still shouldn't implement it manually using atomic increment and >> decrement. You should use OSSpinLock if tha

Re: Locks

Le 8 déc. 2011 à 09:57, Andreas Grosam a écrit : > > On Dec 7, 2011, at 12:07 PM, Jean-Daniel Dupas wrote: > >> >> Le 7 déc. 2011 à 06:10, Ken Thomases a écrit : >> >>> On Dec 6, 2011, at 10:05 PM, Don Quixote de la Mancha wrote: >>> >>> You still shouldn't implement it manually using atomic

Re: "byte orders" question

On Sat, 26 Nov 2011 16:23:47 -0800, Kyle Sluder said: >> Since you're just doing a memcpy(), you can simply cast the bits and avoid >> the copying.  Try this: >> >> float f = *((float*) &res); >> >> Or try defining a C union: >> >> union foo {  float f;  u_int32_t u;  }; >> union foo bar; >> bar.u

Re: "byte orders" question

On Dec 8, 2011, at 8:45 AM, Sean McBride wrote: > The union strategy is dubious too, but in practice safer. It's neither illegal nor dubious. It's explicitly allowed. -- Scott Ribe scott_r...@elevated-dev.com http://www.elevated-dev.com/ (303) 722-0567 voice

NSIndexSet of NSButtonCells in NSOutlineView

Hi, I've the following problem: I'm writing an application which will display plots / graph: an NSOutlineView has been setup and working which displays the name, location of some scientific instruments (like thermometer, voltage etc.). The instrument's name is selectable as an NSButtonCell, the

Re: iOS: How to hide blue personal hotspot status bar?

http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UIApplication_Class/Reference/Reference.html#//apple_ref/occ/instm/UIApplication/setStatusBarHidden:withAnimation: On 7 Dec 2011, at 23:40, Eagle Offshore wrote: > Angry Birds does it so it must be possible. So how can I do th

Re: ARC and dealloc

On Wed, 07 Dec 2011 21:56:56 +0100, Mikkel Islay said: >Dear list, > >A question regarding the proper use of dealloc in ARC-environments (under iOS): >I have a need to unregister NSNotification observers during exchange of >UiViewControllers. Is implementing - (void)dealloc considered a proper u

Re: App crashing when adding to Open Recent menu

I've not experienced this crash, but the call stack of your crash includes these lines. 4 com.apple.CoreFoundation CFURLCopyResourcePropertyForKey 5 com.apple.LaunchServices _LSGetIconRefForURL 6 com.apple.LaunchServices LSSharedFileListInsertItemURL The declaration of LSSharedFileListIns

Re: NSIndexSet of NSButtonCells in NSOutlineView

On Dec 8, 2011, at 08:12 , Gilles Celli wrote: > The instrument's name is selectable as an NSButtonCell, the idea is to turn > on/off its respective graph / plot. > So there's a mix of NSButtonCells along with NSString in the NSOutlineView. > My model's NSButtonCells are based of NSMutableDiction

Re: ARC and dealloc

Thanks for the insightful reply, and of course to Jonny Yu and Scott Anguish as well. On 8 Dec 2011, at 17:36, Matt Neuburg wrote: >> You can certainly make assumptions about when dealloc is called - it is >> extremely deterministic, actually. See Greg Parker's discussion (in the WWDC >> 2011

Re: Locks

On Tue, 6 Dec 2011 20:05:34 -0800, Don Quixote de la Mancha said: >It is a common misconception that the "volatile" keyword is necessary >or even helpful to code the implements locks and atomic operations. Indeed. A nice discussion of this is here:

Re: ARC and dealloc

On Thu, 08 Dec 2011 20:31:51 +0100, Mikkel Islay said: >A twist on the tale, is that the observer wasn't the UIViewController, but a >helper object subclassed from NSObject. Hence view-unloading was one step >further removed from deallocation of the observer-instance. I have *never* added or

Re: NSIndexSet of NSButtonCells in NSOutlineView

Ok as you suggested it's better to call it active Buttons in the OutlineView then selected... For the NSIndexSet: let's say that I've 3 ore more NSButtonCells, if only one is active then it will display only one Graph, if it has 2 activated let's say the first and last one both resp. graphs wil

NSNetService getInputStream:outputStream: and ARC

Hi - I'm writing some OSX NSNetService code with ARC enabled, and I'm getting the following compile error with the following code: @property(strong) NSInputStream* inputStream; @property(strong) NSOutputStream* outputStream; - (void)netServiceDidResolveAddress:(NSNetService *)sender { [s

Re: NSNetService getInputStream:outputStream: and ARC

Some insights here - hope it helps! http://developer.apple.com/library/ios/#qa/qa1546/_index.html#//apple_ref/doc/uid/DTS40011324 John On Dec 8, 2011, at 3:11 PM, Martin Linklater wrote: > Hi - I'm writing some OSX NSNetService code with ARC enabled, and I'm getting > the following compile err

Re: NSNetService getInputStream:outputStream: and ARC

On Dec 8, 2011, at 4:11 PM, Martin Linklater wrote: > Hi - I'm writing some OSX NSNetService code with ARC enabled, and I'm getting > the following compile error with the following code: > > @property(strong) NSInputStream* inputStream; > @property(strong) NSOutputStream* outputStream; > > - (v

Re: NSNetService getInputStream:outputStream: and ARC

Thanks Ken - that did the trick. On 8 Dec 2011, at 22:17, Ken Thomases wrote: > On Dec 8, 2011, at 4:11 PM, Martin Linklater wrote: > >> Hi - I'm writing some OSX NSNetService code with ARC enabled, and I'm >> getting the following compile error with the following code: >> >> @property(strong)

Strange behivor when our document-based Cocoa application launch on lion

Hello group, Our application use document-based architecture and works well on snow leopard, below are the call sequences: 1, when user launch our application, our application's delegate's method "- applicationOpenUntitledFile:" is called. 2, when user double click a document which our application

Singletons with ARC

I'm rather confused by the commonly used implementation of singletons. (Ignoring the fact that perhaps I shouldn't be using singletons) I would appreciate you view on this… Normally I implement a singleton such as.. static MyClass *sharedInstance = nil; + (MyClass *)sharedInstance { @sy

RE: Singletons with ARC

Hi Ben, >I'm rather confused by the commonly used implementation of singletons. >(Ignoring the fact that perhaps I shouldn't be using singletons) I would >appreciate you view on this. > >Normally I implement a singleton such as.. > >static MyClass *sharedInstance = nil; >+ (MyClass *)sharedInst

Re: Strange behivor when our document-based Cocoa application launch on lion

On 2011 Dec 08, at 02:54, qiang zhu wrote: > Can anyone tell the cause or any cue to find the root cause will be > appreciated. A lot change in Lion. Read the section titled "NSDocumentController Asynchronous Opening and Reopening" in the Mac OS X Lion AppKit Release Notes, currently at http

Re: Singletons with ARC

On Dec 8, 2011, at 11:18 PM, Abdul Sowayan wrote: > Hi Ben, > >> I'm rather confused by the commonly used implementation of singletons. >> (Ignoring the fact that perhaps I shouldn't be using singletons) I would >> appreciate you view on this. >> >> Normally I implement a singleton such as.. >

Re: NSIndexSet of NSButtonCells in NSOutlineView

On 09/12/2011, at 8:22 AM, Gilles Celli wrote: > how do I detect which set if NSButtonCells are active ? You need to track that in your dataSource, NSOutlineView will not do it for you. As Quincey suggested, when your dataSource method -outlineView:setObjectValue:forTableColumn:byItem: is inv

Re: Singletons with ARC

On 09.12.2011, at 07:55, Ken Thomases wrote: > On Dec 8, 2011, at 11:18 PM, Abdul Sowayan wrote: >> The above will still work in an ARC environment. It is rather inefficient, >> however. For details please check the "Double Check Locking Optimization >> pattern": >> http://www.cs.wustl.edu/~schmi

Re: Singletons with ARC

On Dec 9, 2011, at 1:11 AM, Uli Kusterer wrote: > On 09.12.2011, at 07:55, Ken Thomases wrote: >> On Dec 8, 2011, at 11:18 PM, Abdul Sowayan wrote: >>> The above will still work in an ARC environment. It is rather inefficient, >>> however. For details please check the "Double Check Locking Optimi

Re: Safari downloader-like behavior

Thanks. And to have Lion Safari's download box like behavior I have to implement everything by myself? I am just wondering how difficult would it be. It seems to be a very customized NSTableView. There's no existing components at the moment? 2011/12/7 John Joyce : > That is weird. Calling that a

Re: Singletons with ARC

On Dec 9, 2011, at 1:11 AM, Uli Kusterer wrote: > On 09.12.2011, at 07:55, Ken Thomases wrote: >> >> Double-checked locking is broken. It is an anti-pattern in many languages, >> including the C family under most common implementations. Don't use it. >> Google it if you want to confirm. One