Re: Retrieve all available Finder tags on Monterey and later
Solution found - credit goes to Thomas Tempelmann and James Walker:
sqlite3
~/Library/SyncedPreferences/com.apple.kvs/com.apple.KeyValueService-Production.sqlite
"SELECT writefile('path/to//tags.plist', ZPLISTDATAVALUE) FROM
ZSYDMANAGEDKEYVALUE WHERE ZKEY = 'FinderTagDict';"
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Retrieve all available Finder tags on Monterey and later
I wonder if anyone has figured out a way to retrieve ALL available Finder tags on Monterey and later? On pre-Monterey systems, it was possible by reading this file: ~/Library/SyncedPreferences/com.apple.finder.plist However, this file doesn't exist anymore. Other methods (such as reading Finder prefs or fileLabels of NSWorkspace) only return the 8 standard labels - but not any custom tags created by the user. Googling the subject didn't produce any results. Thanks for any info, Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: 'altool' cannot be found
Thanks Keary, You helped me solve the issue. altool was indeed in this folder: /Applications/Xcode.app/Contents/Developer/usr/bin/ However, xcode-select -p returned /Library/Developer/CommandLineTools I reset the path with xcode-select -r. Now everything seems to work. Thanks, Leo On 6/15/19 9:56 AM, Keary Suska wrote: I am using that Xcode version and for a while now all Xcode utilities and command line tools are installed in the Xcode app package. My copy is at /Applications/Xcode.app/Contents/Developer/usr/bin/altool. Do you find it in that location? If so, xcrun should be able to find it. If you run xcode-select -p does it show the expected path? Keary Suska Esoteritech, Inc. "Demystifying technology for your home or business" On Jun 15, 2019, at 12:12 AM, Leo via Cocoa-dev wrote: Hi all, I wanted to start building a notarization automation script. However, when I try to use the 'xcrun altool' in Terminal, I get the following error: xcrun: error: unable to find utility "altool", not a developer tool or in PATH I'm on macOS 10.14.5, Xcode 10.2.1. I then especially downloaded and installed Xcode Command Line Tools - still get same error. Other tools like stapler do work. I checked this dir and altool is not there: /Library/Developer/CommandLineTools/usr/bin Any idea what's going on? Thanks for any help! Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40esoteritech.com This email sent to cocoa-...@esoteritech.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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
'altool' cannot be found
Hi all, I wanted to start building a notarization automation script. However, when I try to use the 'xcrun altool' in Terminal, I get the following error: xcrun: error: unable to find utility "altool", not a developer tool or in PATH I'm on macOS 10.14.5, Xcode 10.2.1. I then especially downloaded and installed Xcode Command Line Tools - still get same error. Other tools like stapler do work. I checked this dir and altool is not there: /Library/Developer/CommandLineTools/usr/bin Any idea what's going on? Thanks for any help! Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to get log from user
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Re: Notarization error: The signature algorithm used is too weak
On 5/29/19 1:53 PM, Richard Charles wrote: On May 28, 2019, at 8:18 PM, Leo via Cocoa-dev wrote: Can you please elaborate on this... Perhaps this will help. https://stackoverflow.com/questions/25152451/are-mac-app-store-code-sign-resource-envelopes-always-version-1 Thanks Richard, The issue is now solved - thanks to someone's advice on Stack Overflow: https://stackoverflow.com/questions/56351428/macos-notarization-error-the-signature-algorithm-used-is-too-weak I need to sign the actual framework first, then re-package it as tar.gz. I added this process as Run Script phase in Xcode - and the app is finally notarized. Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Is the list alive?
On 5/29/19 9:02 AM, Steve Mills via Cocoa-dev wrote: On May 28, 2019, at 19:46:26, Leo via Cocoa-dev wrote: Hmm... my earlier message today never got through. Supposedly, these lists are to be done away with at some point. Someone started co...@apple-dev.groups.io, which many of us have moved to. Or use the annoying and inferior dev forums.developer.apple.com. -- Steve Mills Drummer, Mac geek Thanks for the info. Now I see that my emails do get through - however, it takes HOURS for them to show up (like 5+ hours). I wonder if it's normal - or should I adjust something on my end? Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Notarization error: The signature algorithm used is too weak
On 5/28/19 9:26 PM, Richard Charles wrote: On May 28, 2019, at 3:43 PM, Leo via Cocoa-dev wrote: -I recently contacted Apple again and they pointed me to some resource page that was created back in 2016. It briefly mentions a similar error - but still without any info on how to solve it: https://developer.apple.com/library/archive/technotes/tn2206/_index.html#//apple_ref/doc/uid/DTS40007919-CH1-TNTAG301 -A search on this error didn't produce anything useful. -The tar.gz file in question is an eSellerate licensing framework. As many people may know, it's been a popular licensing??platform for Mac software for over a decade. While I switched to a different licensing platform some time ago, I still have thousands of customers with eSellerate licenses (as I'm sure is the situation with many other Mac developers). As far as I understand, this whole situation has to do something with signing files inside tar.gz archives - on which I couldn't find any info either Looks to me like your eSellerate framework is signed with a version 1 signature. You need to resign the framework with a version 2 signature. --Richard Charles Thanks Richard, Can you please elaborate on this... I'm on Xcode 10 and Mojave. As far as I understand, ever since Mavericks it's always version 2 signature. Or am I missing something? I don't see any option in codesign to specify the signature version. Thanks, Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Is the list alive?
Hmm... my earlier message today never got through. ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Notarization error: The signature algorithm used is too weak
Hi all, I wonder if anyone's familiar with this error which only happens when I send my apps for notarization: "AppName.zip/AppName.app/Contents/Resources/EWSMacCompress.tar.gz/EWSMacCompress.tar/EWSMac.framework/Versions/A/EWSMac83886082" "The signature algorithm used is too weak." Additional info: -I've been signing my apps for years with no issues. The error only happens when sending the apps for notarization. -I submitted a bug back in November 2018, provided Apple all the info they asked for - but it was never addressed further. -I recently contacted Apple again and they pointed me to some resource page that was created back in 2016. It briefly mentions a similar error - but still without any info on how to solve it: https://developer.apple.com/library/archive/technotes/tn2206/_index.html#//apple_ref/doc/uid/DTS40007919-CH1-TNTAG301 -A search on this error didn't produce anything useful. -The tar.gz file in question is an eSellerate licensing framework. As many people may know, it's been a popular licensing??platform for Mac software for over a decade. While I switched to a different licensing platform some time ago, I still have thousands of customers with eSellerate licenses (as I'm sure is the situation with many other Mac developers). As far as I understand, this whole situation has to do something with signing files inside tar.gz archives - on which I couldn't find any info either Any help will be appreciated! Thanks, Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Is "-init" really needed?
I love "new". Why type more and clutter your code when you don't have to. Cheers, Leo On 8/8/17 12:45 PM, Alex Zavatone wrote: I see it creeping back in to use with some people, but IMO, new bears too many references to other languages’ use of new. It seems too close to how it would be used in other languages and may imply things that aren’t the best. I think it’s a case of, “well in the olden days, new was used for stuff that was different. We’ll use another word now.” This just seems like a case of, “yeah, you can do it, but it’s probably better to let it rest and use another approach.” Thoughts? Agree? Disagree? - Alex Zavatone On Aug 8, 2017, at 5:13 AM, Uli Kusterer <witness.of.teacht...@gmx.net> wrote: On 8. Aug 2017, at 02:23, Carl Hoefs <newsli...@autonomy.caltech.edu> wrote: Is the use of +new discouraged also? Apple have gone back and forth on this AFAIR. +new was actually the pre-retain/release way to create an object. So it has been discouraged since ... OpenStep, I think? But it was never formally deprecated, and I'm seeing it used more and more in ARC code these days. Cheers, -- Uli Kusterer "The Witnesses of TeachText are everywhere..." http://www.zathras.de ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/zav%40mac.com This email sent to z...@mac.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: https://lists.apple.com/mailman/options/cocoa-dev/leo.r%40rogers.com This email sent to le...@rogers.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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSOpenPanel stopped working in some apps on Sierra
Thanks, I found out what the problem was - but my emails to the list ended up being empty... hmm... another issue to solve? Anyway, in brief: I had NSSplitView's -dividerThickness method defined as a category with some custom thickness - instead of subclassing NSSplitView. Not a good idea, but it was years ago and I didn't know it back then. It did affect the divider thickness in NSOpenPanel too but didn't cause any problems until Sierra. Leo On 12/7/16 10:43 PM, じょいすじょん wrote: On 2016 Dec 8, at 9:22, Jens Alfke <j...@mooseyard.com> wrote: On Dec 7, 2016, at 3:16 PM, Leo <le...@rogers.com> wrote: Any attempt to call it with runModal results with the following errors: [General] *** -[__NSArrayM objectAtIndex:]: index 0 beyond bounds for empty array [General] (null) What’s the backtrace? Chances are there’s something messed up in the defaults the open-panel stores. If you look at the apps’ defaults and delete any that have “OpenPanel” in the name, that might fix things. (But it’d be a good idea to capture a dump of the defaults first, and put that in a bug report to Apple.) —Jens ___ I would add that without the stacktrace and without showing code, it's pretty hard to do anything for you beyond guessing. ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSOpenPanel stopped working in some apps on Sierra
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Re: NSOpenPanel stopped working in some apps on Sierra
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NSOpenPanel stopped working in some apps on Sierra
Hi all, I suddenly discovered a strange issue: NSOpenPanel stopped working in some of my apps. Any attempt to call it with runModal results with the following errors: [General] *** -[__NSArrayM objectAtIndex:]: index 0 beyond bounds for empty array [General] (null) The problem started on Sierra (or maybe with 10.12.1 update). The same code worked for years with no issues. Also, the problem only affects three apps (fortunately). The same code works fine in the rest of them as always. Any ideas? Any help is appreciated! Thanks, Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sandboxing: Can't bookmark enclosing folder of user-selected file
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Re: dataWithPDFInsideRect returns raster text
If it doesn't work, you may need to use CGPDF... stuff and combine your elements in PDF manually. But that's just a guess as I never had to solve the issue you describe. Leo On 12/19/13, 12:12 PM, Leonardo wrote: I get a pdf from my NSView using dataWithPDFInsideRect. If my view contains only a NSTextView, dataWithPDFInsideRect properly returns a pdf with real and selectable test. But if put over the NSTextView a NSView in which I draw a transparent png NSImage, the text laying exactly under the image gets rasterized and not selectable. In other words I can't put any image over the text and and get a professional pdf. Is a way to solve this trouble? I guess yes. Thanks. Regards -- Leonardo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/leo.r%40rogers.com This email sent to le...@rogers.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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Sandboxing: Can't bookmark enclosing folder of user-selected file
I'm sandboxing an app for the first time. The app has been out for a few years by now, non-sandboxed. The app receives batches of PDF files and exports them with some changes. Users can select files from NSOpenPanel or drag-and-drop. There are two options: -export files into a specific folder, or -export each file into its original folder. The first option works with no problem: users select a destination folder in NSOpenPanel, I create and then resolve the bookmark for this folder. Files are being exported there as expected. However, I'm not sure how to deal with the second option when each file should be exported to its original enclosing folder. I tried to create a bookmark for file's enclosing folder when users add the files: NSURL *url = [NSURL fileURLWithPath:[filePath stringByDeletingLastPathComponent]]; NSData *bookmarkData = [url bookmarkDataWithOptions:NSURLBookmarkCreationWithSecurityScope includingResourceValuesForKeys:nil relativeToURL:nil error:err]; However, it results in this error: The file “enclosing folder name” couldn’t be opened. As far as I understand, it happens because user selects the file, which still doesn't grant the right to bookmark its enclosing folder. If I create a bookmark for file's URL, I can't use this bookmark to export the file: the bookmark doesn't grant permissions to the enclosing folder. I did some extensive research and experimented with different options with no luck. What am I missing? How can I bookmark the enclosing folder of user-selected file (if at all)? Any help will be appreciated! Thanks, Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sandboxing: Can't bookmark enclosing folder of user-selected file
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Re: Storing strings in code
Thanks everybody for all the suggestions! I got the point: there's no way to do this easier than I already do. I don't need any sophisticated security. All I want is that if someone opens the executable in a text editor, the paths of certain two files to not appear in plain text. For this purpose, my method does what I need: NSString *str = [[NSArray arrayWithObjects: @m, @y, @S, @t, @r, @i, @n, @g, nil] componentsJoinedByPath:@] If there's someone who can crack this, or crack my demo protection by reverse engineering, then this person wouldn't buy my products anyway so I'm not worrying. Thanks again, Leo On 8/8/12 5:00 PM, Alex Zavatone wrote: How much security do you want? If your strings are basic ASCII, then their value is ASCII 32 to 126. You can just bit shift the ASCII values (+128), store the ASCII value, or zip the strings. On Aug 8, 2012, at 4:37 PM, Jean-Daniel Dupas wrote: Le 8 août 2012 à 22:15, Rick Mann rm...@latencyzero.com a écrit : On Aug 8, 2012, at 12:58 , Leo le...@rogers.com wrote: As I recently learned, plain strings are stored as is in the executable and can be discovered - if opening it in a text editor, for example. That is, if I have a string @myString inside the code, it can be read in plain text inside the executable. I have a couple of string I don't want to be discovered (related to demo period handling). Is there an easy way to store them in an encoded way? I tried to define them as C strings (const char) but it doesn't make a difference. So far I just break them into characters in AppleScript Editor, add @ in front of each with find-replace, and then store them as an array which receives the -componentsJoinedByString: method. Is there an easier way? There's no truly secure way to do this. About the best you can do is encrypt the strings, but people can crack it if they want to badly enough. Depending on how much effort you want them to go through, you can do any number of things to encrypt, from simple to complex. You might also consider requiring a connection to a server to see if you should run. But given enough interest, you will get p0wned eventually. Requiring a connection to check license is the best way to bother legitimate customers, while being totally ineffective to stop your application to being cracked. I would not bother to much to hide strings. There is far more information in the binary that can be used to crack it, like the full objc metas. -- Rick -- Jean-Daniel ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/zav%40mac.com This email sent to z...@mac.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: https://lists.apple.com/mailman/options/cocoa-dev/leo.r%40rogers.com This email sent to le...@rogers.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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Storing strings in code
As I recently learned, plain strings are stored as is in the executable and can be discovered - if opening it in a text editor, for example. That is, if I have a string @myString inside the code, it can be read in plain text inside the executable. I have a couple of string I don't want to be discovered (related to demo period handling). Is there an easy way to store them in an encoded way? I tried to define them as C strings (const char) but it doesn't make a difference. So far I just break them into characters in AppleScript Editor, add @ in front of each with find-replace, and then store them as an array which receives the -componentsJoinedByString: method. Is there an easier way? Thanks, Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to deactivate an app
What happens if you send set frontmost of process yourApp to false then, using the name of your app? Will it reveal the previous app by a chance? If not, then is there any way to capture the name of the app you need to activate at an earlier stage, so you can send it set frontmost to true later? Leo On 2/1/12 1:44:49 AM, Gerriet M. Denkmann wrote: On 1 Feb 2012, at 11:33, Leo wrote: If I understand your goals correctly, you can send the following AppleScript script: tell application System Events to set frontmost of process yourApp to true I tried the following in AppleScript Editor: set appList to processes tell application System Events set proCount to count of processes set appList to appList ( proCount ): repeat with x from (1) to (proCount) set appName to name of process x set appList to appList appName , end repeat end tell log appList But the resulting list of apps has only a very rough resemblance to the list displayed by Command-Tab. So the following: NSString *source = @tell application \System Events\ to set frontmost of process 2 to true; NSAppleScript *appleScript = [ [ NSAppleScript alloc ] initWithSource: source ]; NSDictionary *errorInfo; NSAppleEventDescriptor *aed = [ appleScript executeAndReturnError:errorInfo ]; [ appleScript release ]; does work in that is activates some app, but process 2 is NOT the previous active app. Kind regards, Gerriet. ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to deactivate an app
If I understand your goals correctly, you can send the following AppleScript script: tell application System Events to set frontmost of process yourApp to true You can use NSAppleScript of Scripting Bridge (although the latter maybe an overkill for just one line). Leo On 1/31/12 2:55:31 AM, Gerriet M. Denkmann wrote: I have an app A, where I can select a word and press a button. This starts (or activates) another app called B, which displays some information about this word. Works fine so far. But if there is no information about the word, app B should make app A active again. But how? (B should not be hidden; it should remain visible, so that the user sees: Word not found.) I tried [NSApp deactivate] - the documentation says, I should not use this method - and indeed, it makes the B-window look inactive, but does NOT make A active - the menu bar still belongs to B. No good. The there is NSWorkspace runningApplications - but: The order of the array is unspecified. Not really useful. I just want the equivalent of Command-Tab: making the next most recent app active. There probably is a simple, direct and obvious solution. But I cannot see it. Kind regards, Gerriet. P.S. 10.7.2 ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/leo.r%40rogers.com This email sent to le...@rogers.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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSPopUpButton Binding Frustration
On 1/30/12 11:34:11 AM, Keary Suska wrote: For instance, when using selectedObject, the returned object must be an exact object in the content/contentObjects array. -isEqual is not enough. Thank you! You just unexpectedly solved me the headache I had for a long time. Leo ___ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Is slowing down bindings updates possible?
I'm not sure if this has already been suggested: What if you don't update the UI unless the change is at least 1 sec or 1% or certain amount of bytes (whatever suits your needs better)? Leo On 1/15/12 12:33:31 AM, Andrew wrote: Thank you all for the opinions. I left the code as-is in terms of binding, but changed my rate calculations to use a weighted running average. After doing so, the estimated seconds tick by one at a time for the most part, and the rate is more constant. This is a tool for me and some co-workers, so at this point, it is good enough. But the ideas are sound and if it bothers me enough, I may decouple the UI from the model by not using bindings at some point and use a timer based approach. On Sat, Jan 14, 2012 at 10:37 AM, Kyle Sluderkyle.slu...@gmail.com wrote: On Jan 14, 2012, at 2:53 AM, Marcel Weihermarcel.wei...@gmail.com wrote: Hi Andrew, On Jan 13, 2012, at 6:57 , Andrew wrote: The result of this is that the UI updates really frequently and the estimated time to complete and the download rate jump around a lot. I would love it if I could tell cocoa to only update the UI once per second instead of immediately when the property key changes. You shouldn't push updates to the UI, the UI should query the model, and it should do it at human speed, not at whatever speed the machine can manage to change the state. There are a bunch of reasons for this, not least is that UI updating is fairly heavyweight and you can actually impact your performance (significantly, in some cases). Be careful here. This is good advice in this particular circumstance, but in general pushing values to the UI is good and common design. The UI will register as a KVO observer, or as an NSNotification observer, or perhaps the controller will just call -setObjectValue: directly. Breaking this pattern should be a conscious decision. For example, you don't push a value to cell-based NSTableViews; you tell the table view it needs to ask you for the values at certain indexes. This is because cell-based table views are an optimization that avoids keeping tons of view objects around. But view-based table views behave just like any other view: you push updates directly to the controls contained within your table cell view. In Andrew's case, it's clear that he should deviate from the norm, and the UI should be in charge of asking for the latest value at a rate that makes sense, probably controlled by an NSTimer. --Kyle Sluder ___ 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/leo.r%40rogers.com This email sent to le...@rogers.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
Re: Transparency of textured controls
On 8/21/11 7:02:09 PM, Andreas Mayer wrote: Am 19.08.2011 um 21:36 schrieb Leo: Actually, I finally realized what the real issue is: Apple for some reason didn't refresh NSSegmentedControl Rounded style to match the new appearance of NSTabView controls on Lion. I guess that's intentional. The 'Capsule' style does look like the NSTabView controls. I checked boh IB 3.2.6 and Xcode 4 again, and the Capsule looks almost identical to Textured Rounded, and it's also transparent. Is it really different on your setup? And please bring back the colorful Finder sidebar Thats most definitely intentional. They said so in one of the sessions at WWDC, IIRC. It's meant to make the actual content stand out more. Oh yeah, I know it's intentional! The only thing they achieved is making the sidebar much harder to use,in my opinion. The icons are almost indistinguishable, so instead of quickly recognizing the desired item by its custom color icon, users now must read all the labels. I have all my projects in the sidebar, with unique custom icon for each project. Plus dividers with no icon (just a transparent mask). In Lion it all became just a long list of names and useless dull icons. What's next? Black-and-white Finder with no custom icons to make content stand out? The whole idea sounds as un-Mac as it can be to me. Well I guess I take it really seriously. :) But the custom icons help find stuff really fast and effortlessly, which is important. And vice versa. It's icons that make content stand out... that's why they were invented. Also, when I was looking for a solution to bring back the normal sidebar, I happened to come across several discussions on the subject - and it looks like the majority of users are really upset about the new sidebar. Plus, there's no way for 3rd party developers to alter its appearance. Well, hope someone from Apple reads it as well. :) Leo ___ 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
Scripting Bridge header file problem
Hi all, I'm trying to use Scripting Bridge to send AppleScript to InDesign CS5.5. I created the header file from scripting definitions... It's a huge file - 10.2 MB. Added it to the project. Now the project won't compile because the InDesign header file contains tons of duplicate declarations of various methods. For example, mergeWith: declared 3 times for various InDesign classes. It's unthinkable to correct all of them - there's over 500 errors Is there a way to deal with it? Obviously, I don't need all the classes. So I guess I just should delete whatever I don't need from the header file and correct a few remaining matching methods (if any). Or is there a better way to fix it? Thanks, Leo ___ 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
Re: Transparency of textured controls
On 8/19/11 11:00:44 AM, Andreas Mayer wrote: Am 13.08.2011 um 18:41 schrieb Leo: For some reason, the textured controls are now transparent (e.g., Textured Rounded and Textured Square of NSSegmentedControl etc.) From the AppKit Release Notes: -- Button Appearance Changes (New since early 2011 seed) As part of an ongoing refresh of Aqua in Mac OS X Lion, some buttons look different and may not look the same in every context in your application. Specifically, the “Round Textured” button is not appropriate in any context other than directly on the background of a textured window. If you are using this kind of button in a table view or other context, please consider changing it to a “Round Rect” button. -- Thanks Andreas! Actually, I finally realized what the real issue is: Apple for some reason didn't refresh NSSegmentedControl Rounded style to match the new appearance of NSTabView controls on Lion. So NSSegmentedControl still looks like the old Aqua blueish liquified controls. Which will look totally out of place on Lion. I'll submit an appropriate request to Apple. Like - hello Apple! This is something you really had to update. And please bring back the colorful Finder sidebar with custom icons and Devices on top, so that it becomes user-friendly again (you did not have to ruin it really)!! Best, Leo ___ 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
Transparency of textured controls
Hi all, I think it's something new to Lion: For some reason, the textured controls are now transparent (e.g., Textured Rounded and Textured Square of NSSegmentedControl etc.) That is, underlying elements are showing through. I guess the goal of this transparency is so that textured controls change their appearance when placed on a textured window. I need to put segmented control at the top of a tabless NSTabView instead of its original tabs. If I use the Textured Square style, the tab view's bezel is showing through. Obviously, I don't want to use other styles. Is there any way to get rid of this transparency? (Setting isOpague to YES doesn't change anything). Thanks, Leo ___ 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
Re: File Copy With Progress?
You can also use libcurl which supports the 'file' protocol along with ftp, http, etc. It's also not Cocoa, but easy to use and there's also its Cocoa wrapper CURLHandle (I'm not sure if they updated it to Intel eventually): http://code.google.com/p/curlhandle/ Leo On 8/11/11 7:22:53 PM, Todd Freese wrote: Is there a Cocoa way in 10.6+ to copy a file with a progress call back? I would love to rid my code of calls to FSCopyObjectASync and all of it's non-sense. Thanks! Todd Freese The Filmworkers Club ___ 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
Re: Frameworks (ConnectionKit)
You can use libcurl: http://curl.haxx.se/ Extremely powerful library, which is a part of Mac OS X, that supports most protocols (FTP, SFTP, HTTP etc.) I find it very easy to use - but I've been using it for years in either its command line (curl) or library implementation. There's also excellent Open Source polkit: http://code.google.com/p/polkit/ which is partially based on libcurl and Mac OS X frameworks and supports even more protocols, such as Amazon S3, AFP and SMB. I remember trying the ConnectionKit, and whatever I tried it just didn't work. Leo On 8/9/11 7:04:08 AM, Amy Heavey wrote: Hi, I'd like to be able to use my mac app to upload an image to a server. From googling it seems the best way to achieve this is using the ConnectionKit framework to upload it via FTP. I've downloaded the framework, but Im at a loss, the examples included don't build, and looking at the hillegass book there should be a .framework file for me to link to but I can't find one. I also can't find any documentation about how to use this. Can anyone point me in the right direction? Either for using ConnectionKit or how else to simply ftp a file to a server? Many Thanks Amy Heavey Willow Tree Crafts www.willowtreecrafts.co.uk ___ 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/leo.r%40rogers.com This email sent to le...@rogers.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
Re: Frameworks (ConnectionKit)
On 8/9/11 6:28:54 PM, Mike Abdullah wrote: Bear in mind PolKit is GPL, unless the author gives you permission otherwise. Yeah actually I had to mention this but it didn't look like the original question referred to a commercial product. ___ 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
Re: Menu Item Key Equivalent
On 8/5/11 4:43:06 AM, Uli Kusterer wrote: On 05.08.2011, at 08:49, Jens Alfke wrote: Photoshop has always used letter keys as commands to select tools, and most other image editors on Mac follow suit, like Pixelmator and (I think) Acorn. I’m not sure if these show up in menus, though, although that seems like a good idea, as it makes them more discoverable. Just make sure you don't do it like Pixelmator: Every time I habitually try to tab from one text field to the next, all my palettes just vanish. The first few times this happened, I thought Pixelmator had crashed. They just copied Photoshop. Although I also think it's a bad idea. ___ 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
Keeping NSOutlineView always active?
Hi all, Is it possible to make NSOutlineView look always active, even if it's not the actual first responder? Similar to the way the sidebar appears in the Finder: the selection in sidebar always appears as active, even when you work with the actual window contents. Am I missing something obvious? Thanks, Leo ___ 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
Keeping NSOutlineView always active?
Hi all, Is it possible to make NSOutlineView look always active, even if it's not the actual first responder? Similar to the way the sidebar appears in the Finder: the selection in sidebar always appears as active, even when you work with the actual window contents. Am I missing something obvious? Thanks, Leo ___ 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
Re: Keeping NSOutlineView always active?
Oops sorry - please ignore, just reposted as a separate thread. Leo On 7/28/11 4:09:38 AM, Leo wrote: Hi all, Is it possible to make NSOutlineView look always active, even if it's not the actual first responder? Similar to the way the sidebar appears in the Finder: the selection in sidebar always appears as active, even when you work with the actual window contents. Am I missing something obvious? Thanks, Leo ___ 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
Re: Detecting shared folders
Greg and Ken: Thanks a lot for answering my question about shared folders, that's exactly what I needed! Best, Leo From: Greg Nelson nelsong...@gmail.com Date: Wed, 17 Nov 2010 00:01:24 -0500 To: Leo le...@rogers.com, cocoa-dev@lists.apple.com Subject: Re: Detecting shared folders From: Ken Thomases k...@codeweavers.com Date: Wed, 17 Nov 2010 00:33:02 -0600 To: Leo le...@rogers.com Cc: cocoa-dev@lists.apple.com Subject: Re: Detecting shared folders ___ 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
Detecting shared folders
Hi, I wonder if it's possible to detect a shared folder? That is a folder that is shared via File Sharing. Am I missing something obvious? I couldn't find an appropriate folder attribute in either Cocoa or AppleScript. Or any other way to distinguish a shared folder from other folders. I also assume there must be a list of all shared folders in one of the Unix special directories. Or a way to retrieve it with a shell command. I did some extensive research, couldn't find anything. Any help would be appreciated! Thanks, Leo ___ 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
Re: NSSavePanel panel:shouldShowFilename:
From: Quincey Morris quinceymor...@earthlink.net a number of system extensions (like Default Folder, but I think that wasn't the first) added the ability to option-click on a disabled item to prefill the text field with an existing name, At some point (possibly Mac OS X 10.0), Apple quietly adopted this very useful convention. I once submitted a request to Apple, maybe I'm in minority, but I hope this behavior will be optional one day. Like Opt-click would be perfect. I worked at a major ad agency for several years, and this behavior caused major problems, misunderstandings and loss of time. Most of the time, people click on the file list occasionally (maybe to type-scroll to desired folder), the file gets quietly renamed, you save it - and can never find it because it was saved under a name you never wanted or thought about. I had myself to cancel the Save dialog countless times to avoid saving files under unwanted names. Leo ___ 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
How to make a token field that only accepts numbers: NSTokenField with NSNumberFormatter?
Hi, I want to create an NSTokenField that only accepts tokens that are numbers. In fact, I only want integers between 0 and, say, 170 inclusive. I tried dropping an NSNumberFormatter onto my NSTokenField, but it had no perceivable effect. Help! Leo ___ 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
Re: Running out of memory on stack in C++ routine invoked within Cocoa NSOperation
Sorry, I meant to send this to the list. Leo -- Forwarded message -- From: Leo Singer doc.aron...@gmail.com Date: Thu, Feb 19, 2009 at 1:28 PM Subject: Re: Running out of memory on stack in C++ routine invoked within Cocoa NSOperation To: Greg Parker gpar...@apple.com Thanks for all of the input on this. I decided to override NSOperation's - start selector and make the thread myself. I wish that there was a way to adjust the stack size per NSOperationQueue. Maybe I should report that as a feature request. I would rather not dynamically allocate that particular array because the Cocoa application I am developing is simply a wrapper for a cross platform C++ project. This particular project has to manage a number of different resources, including an SQLite database connection, an open file, and a serial port device. In order to keep error handling as simple as possible, I have made heavy use of the RIAA pattern. If a serial port error occurs, for example, an exception gets thrown. As a result, the objects representing both the database and the open file go out of scope, and their resources are released. A std::vector would be unsuitable also because in my actual application (not the cooked example I sent out) I need to be able to manipulate that memory directly. Some more background information might be helpful. The application is a GUI for a bootloader for Microchip brand DSPs. The big array in question is actually a 256 kb image of the device's program memory. Thanks again, Leo On Wed, Feb 18, 2009 at 3:17 PM, Greg Parker gpar...@apple.com wrote: On Feb 18, 2009, at 3:22 AM, Michael Vannorsdel wrote: Really it would be best to malloc the space, use it, and free it. Once you get to huge stack usage you gamble that you won't run out when there can be other higher up calls also consuming some (frameworks, libs, 3rd party code, ect). Also if you only use the large amount once in a while then you have a bunch of unutilized memory sitting around. Agreed: use malloc for large memory allocations. One other limit that you apparently haven't run into yet: some architectures limit the maximum size of a single stack frame, even if there is lots of space on the stack. ppc has a maximum 64K stack frame size; arm may have a similar limit. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ 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/doc.aronnax%40gmail.com This email sent to doc.aron...@gmail.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
Running out of memory on stack in C++ routine invoked within Cocoa NSOperation
Hi,
I have a C++ method that I am invoking from within the - (void) main
selector of an NSOperation. My Cocoa application is crashing because
this particular C++ method puts a huge amount of data on the stack. I
am getting an EXEC_BAD_ACCESS error. However, the same C++ routine
works fine if I call it from within a command line C++ program.
I have contrived some sample code to illustrate the problem.
TestOperation is an (Objective C) subclass of NSOperation; I am
running the NSOperation in a separate thread by putting it into an
NSOperationQueue. TestOperationImpl is a C++ class. The NSOperation
is responsible for doing one thing only: calling the go() method on an
instance of TestOperationImpl.
Note the very large array of ints that is declared inside
TestOperationImpl::go(). If it is changed to an array of shorts or an
array of chars, then this example code works fine, no EXEC_BAD_ACCESS.
Is there any way for me to give my application more memory, or at
least give more memory to the thread that is running this C++ method?
Thanks,
Leo
TestOperation.h /
#import Cocoa/Cocoa.h
class TestOperationImpl {
private:
bool cancelled;
public:
TestOperationImpl();
void go();
void cancel();
};
@interface TestOperation : NSOperation {
TestOperationImpl* testOpImpl;
}
- initWithController: (TestOperationController*) controller;
@end
End of TestOperation.h /
TestOperation.mm /
#import TestOperation.h
TestOperationImpl::TestOperationImpl(TestOperationController* controller)
: cancelled(false)
{
}
void TestOperationImpl::go()
{
int bigArray[256000];
for (int j = 0 ; j 256000 !cancelled ; j ++)
{
bigArray[j] = 2*j;
}
}
void TestOperationImpl::cancel()
{
cancelled = true;
}
@implementation TestOperation
- initWithController: (TestOperationController*) ctrl
{
if (self = [self init])
testOpImpl = new TestOperationImpl(ctrl);
controller = ctrl;
return self;
}
- (void) dealloc
{
delete testOpImpl;
[super dealloc];
}
- (void) cancel
{
testOpImpl-cancel();
[super cancel];
}
- (void) main
{
testOpImpl-go();
}
@end
End of TestOperation.mm /
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Re: Running out of memory on stack in C++ routine invoked within Cocoa NSOperation
Actually, if the big array and the loop are moved from the C++ method
into the Objective C selector - (void) main then the same
EXEC_BAD_ACCESS occurs. So the problem is not related to C++. The
following source code still exhibits the same problem:
TestOperation.h /
#import Cocoa/Cocoa.h
@interface TestOperation : NSOperation {
}
@end
End of TestOperation.h /
TestOperation.mm /
#import TestOperation.h
@implementation TestOperation
- (void) main
{
int bigArray[256000];
for (int j = 0 ; j 256000 ![self isCancelled] ; j ++)
{
bigArray[j] = 2*j;
}
}
@end
End of TestOperation.mm /
On Wed, Feb 18, 2009 at 3:16 AM, Leo Singer doc.aron...@gmail.com wrote:
Hi,
I have a C++ method that I am invoking from within the - (void) main
selector of an NSOperation. My Cocoa application is crashing because
this particular C++ method puts a huge amount of data on the stack. I
am getting an EXEC_BAD_ACCESS error. However, the same C++ routine
works fine if I call it from within a command line C++ program.
I have contrived some sample code to illustrate the problem.
TestOperation is an (Objective C) subclass of NSOperation; I am
running the NSOperation in a separate thread by putting it into an
NSOperationQueue. TestOperationImpl is a C++ class. The NSOperation
is responsible for doing one thing only: calling the go() method on an
instance of TestOperationImpl.
Note the very large array of ints that is declared inside
TestOperationImpl::go(). If it is changed to an array of shorts or an
array of chars, then this example code works fine, no EXEC_BAD_ACCESS.
Is there any way for me to give my application more memory, or at
least give more memory to the thread that is running this C++ method?
Thanks,
Leo
TestOperation.h /
#import Cocoa/Cocoa.h
class TestOperationImpl {
private:
bool cancelled;
public:
TestOperationImpl();
void go();
void cancel();
};
@interface TestOperation : NSOperation {
TestOperationImpl* testOpImpl;
}
- initWithController: (TestOperationController*) controller;
@end
End of TestOperation.h /
TestOperation.mm /
#import TestOperation.h
TestOperationImpl::TestOperationImpl(TestOperationController* controller)
: cancelled(false)
{
}
void TestOperationImpl::go()
{
int bigArray[256000];
for (int j = 0 ; j 256000 !cancelled ; j ++)
{
bigArray[j] = 2*j;
}
}
void TestOperationImpl::cancel()
{
cancelled = true;
}
@implementation TestOperation
- initWithController: (TestOperationController*) ctrl
{
if (self = [self init])
testOpImpl = new TestOperationImpl(ctrl);
controller = ctrl;
return self;
}
- (void) dealloc
{
delete testOpImpl;
[super dealloc];
}
- (void) cancel
{
testOpImpl-cancel();
[super cancel];
}
- (void) main
{
testOpImpl-go();
}
@end
End of TestOperation.mm /
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Re: Running out of memory on stack in C++ routine invoked within Cocoa NSOperation
OK, so there is a way to change the size of the stack for an NSThread.
But how do I do this for an NSOperationQueue?
NSThread has the following selector:
- (void) setStackSize:(NSInteger)s;
I need to find the equivalent selector for NSOperationQueue. Any
ideas out there?
Leo
#import Cocoa/Cocoa.h
@interface MemoryTortureController : NSObject {
}
- (IBAction)memoryTortureBackground: (id) sender;
- (IBAction)memoryTorture: (id) sender;
@end
@implementation MemoryTortureController
- (IBAction)memoryTortureBackground: (id) sender
{
NSThread* thread;
thread = [[NSThread alloc] initWithTarget: self
selector: @selector(memoryTorture:)
object: sender];
// The magic line
[thread setStackSize:256000*8];
[thread start];
}
- (IBAction)memoryTorture: (id) sender
{
int bigmem[256000];
for (int i = 0 ; i 256000 ; i ++)
bigmem[i] = 2*i;
}
@end
On Wed, Feb 18, 2009 at 3:31 AM, Leo Singer doc.aron...@gmail.com wrote:
Actually, if the big array and the loop are moved from the C++ method
into the Objective C selector - (void) main then the same
EXEC_BAD_ACCESS occurs. So the problem is not related to C++. The
following source code still exhibits the same problem:
TestOperation.h /
#import Cocoa/Cocoa.h
@interface TestOperation : NSOperation {
}
@end
End of TestOperation.h /
TestOperation.mm /
#import TestOperation.h
@implementation TestOperation
- (void) main
{
int bigArray[256000];
for (int j = 0 ; j 256000 ![self isCancelled] ; j ++)
{
bigArray[j] = 2*j;
}
}
@end
End of TestOperation.mm /
On Wed, Feb 18, 2009 at 3:16 AM, Leo Singer doc.aron...@gmail.com wrote:
Hi,
I have a C++ method that I am invoking from within the - (void) main
selector of an NSOperation. My Cocoa application is crashing because
this particular C++ method puts a huge amount of data on the stack. I
am getting an EXEC_BAD_ACCESS error. However, the same C++ routine
works fine if I call it from within a command line C++ program.
I have contrived some sample code to illustrate the problem.
TestOperation is an (Objective C) subclass of NSOperation; I am
running the NSOperation in a separate thread by putting it into an
NSOperationQueue. TestOperationImpl is a C++ class. The NSOperation
is responsible for doing one thing only: calling the go() method on an
instance of TestOperationImpl.
Note the very large array of ints that is declared inside
TestOperationImpl::go(). If it is changed to an array of shorts or an
array of chars, then this example code works fine, no EXEC_BAD_ACCESS.
Is there any way for me to give my application more memory, or at
least give more memory to the thread that is running this C++ method?
Thanks,
Leo
TestOperation.h /
#import Cocoa/Cocoa.h
class TestOperationImpl {
private:
bool cancelled;
public:
TestOperationImpl();
void go();
void cancel();
};
@interface TestOperation : NSOperation {
TestOperationImpl* testOpImpl;
}
- initWithController: (TestOperationController*) controller;
@end
End of TestOperation.h /
TestOperation.mm /
#import TestOperation.h
TestOperationImpl::TestOperationImpl(TestOperationController* controller)
: cancelled(false)
{
}
void TestOperationImpl::go()
{
int bigArray[256000];
for (int j = 0 ; j 256000 !cancelled ; j ++)
{
bigArray[j] = 2*j;
}
}
void TestOperationImpl::cancel()
{
cancelled = true;
}
@implementation TestOperation
- initWithController: (TestOperationController*) ctrl
{
if (self = [self init])
testOpImpl = new TestOperationImpl(ctrl);
controller = ctrl;
return self;
}
- (void) dealloc
{
delete testOpImpl;
[super dealloc];
}
- (void) cancel
{
testOpImpl-cancel();
[super cancel];
}
- (void) main
{
testOpImpl-go();
}
@end
End of TestOperation.mm /
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