run in the background enough to be
able to send and receive SSH-level keepalives so that I can keep an
SSH session open, given that it's costly to setup in the first place
(imho).
Thanks in advance...
Chris
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ple. For a small fee I could keep their secret ;)
Chris
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u have any control over CERPCFBundle or influence with the
owners of that, find out why they are throwing NSErrors as exceptions.
Chris Kane
Cocoa Framework, Apple
On May 21, 2011, at 12:34 PM, Ken Victor wrote:
> nick,
> thanx for the reply.
>
> here is a copy of the top portion of t
If I take a string from an NSTextField with an accented character: café and I
make this into a file name and write a file, then I read that file name back in
(using NSFileManager contentsOfDirectoryAtPath), then the string read back in,
still looks the same: an accented café, but the strings d
follow the conventions of
some other language or platform in tour coding, rather than Objective-C and
Cocoa's own conventions.
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guments, that's the array that will be copied
(via the execve(2) or posix_spawn(2) functions) over to the other program's
main() function.
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And instructions on getting *just* that class from the above:
<http://www.raywenderlich.com/725/how-to-read-and-write-xml-documents-with-gdataxml>
Chris
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On Jun 10, 2011, at 7:56 PM, William Squires wrote:
> Hi!
> 1st question:
In the future, please just start a separate thread for separate questions.
Thanks!
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> objects are unique, i.e. there is never more than one value object for a
> particular primary key.
Rather than reinventing all of this yourself, you should just use Core Data.
It provides both the uniquing and the database call minimization you're looking
for, and a lot else
I have a NSTextView's value bound to an object. I do not have "Continuous
update" turned on. The binding works when I type into the field and exit the
field. However if I *paste* text into the field, then exit the field, the
binding set: method is never called.
What am I missing?
r can help in writing thread-safe accessors
as well.
.chris
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I've noticed that Mac OS sometimes silently changes the UNIX mount name of
network volumes. For example, if I mount a network volume of Media, it would
normally be /Volumes/Media, but sometimes it isn't. For example, if another
user
on the same machine mounts Media first, then you might end up
n Finder.
> So the question is how do I get that besides using the spotlight metadata?
Does the resource fork (where the icon lives) have a different set of
timestamps from the data fork?
Chris
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be wrong? Thanks!
The man page for "isinf" says you will need to #include and link with
-lm.
Chris
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the chain,
This is what's recommended.
> or at least put it into in the root view. In the latter case you can get
> the root view with [self. navigationController.viewControllers
> objectAtIndex:0]. Any better way that I’m missing?
No
I have a private framework that is included in a project. Many of the project
classes descend from a class in the framework. All of these descendent classes
implement copyWithZone, encodeWithCoder and initWithCoder and thus respectively
calls each on super. I get warnings stating that "MySuperCl
On Jul 21, 2011, at 9:33 AM, Nick Zitzmann wrote:
>
> On Jul 21, 2011, at 9:51 AM, Chris Tracewell wrote:
>
>> I have a private framework that is included in a project. Many of the
>> project classes descend from a class in the framework. All of these
>> d
this kind of filter? Is there any other way, aside
from "doing it the long long way", i.e. enumerating over each's item's
pathExtension in array1 through each file extension in array2?
Thanks,
Chris
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r not.
Thanks for the suggestions for all the options here. I might also check into
the UTI's in case users don't have a file extension.
Chris
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ind of use: Maintaining a pool of
CGI-style servers that use Apache to provide an HTTP front-end without
the overhead of one fork/exec per HTTP connection.
-- Chris
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On Nov 29, 2009, at 5:47 PM, Sandro Noël
wrote:
I have to agree with you here, NSDocument should be just M in the
MVC Pattern, but why is XCode evidently binding it as the C also in
the template project.
Because not every project needs to be picture perfect in its use of
various design
You shouldn't need to write an "installer" in the first place. Mac OS
X comes with its own standard installation system.
If your application is simple, it should be drag-installed; otherwise,
it should use a Mac OS X installer package.
-- Chris
On Dec 1, 2009, at 7:55 AM
used. You can tell a setting is overridden because
it's in bold rather than plain text.
-- Chris
On Dec 1, 2009, at 5:35 PM, Graham Cox wrote:
I'd set this in the (Project) > Get Info > Build settings, not
(Target) > Get Info > Build settings.
Putting it in t
yourself by hand.
All you should need to do is instantiate your window controller, invoke its
-window method to force it to load its associated nib file, and then check that
its outlets are wired up as you expect.
— Chris
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ithZone @@NibPath, context,
> NSApp.zone
>
> objects = context['NSTopLevelObjects']
> view = objects.find { |obj| obj.class == object_type }
I think you’re doing too much work here. You should use an IBOutlet in File’s
Owner to
tement needs to be called out
better somehow? Another bug for the error not being useful would be great.
You're not the first person to trip over this. Thanks!
.chris
On 11 Dec 2009, at 11:10 PM, Jerry Krinock wrote:
> Sorry for the wonky subject. It's easier to explain in
}
@end
You may also be able to implement allSegments as a fetched property, leaving
its implementation up to Core Data. It still wouldn’t be a property you could
use in your own fetch requests though.
— Chris
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I'm trying to use guessesForWordRange:inString:language:inSpellDocumentWithTag:
and have it use automatic language guessing, but it doesn't seem to work.
At first I was just passing a word, and despite it being in Russian letters, I
figured it didn't have enough context to guess. So I passed
I've tried setting the gradient as NSForegroundColorAttributeName in the
attributes dictionary when creating the string but as I expected that didn't
work. How would I go about filling the string with a gradient?
Thanks!
--Chris
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e to come up with an alternative way to architect this - we had to
do all our string measuring on the main thread. (We were actually
getting occasional crashes from doing this on a secondary thread,
maybe once every 30K strings or so)
Hope that helps some,
Chris Backas
On Dec 22, 2009, at
rmally,
just using NSTextField should achieve appropriate antialiasing.
— Chris
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_allocateClassPair) needs to use
these if they want their classes to work under GC.
— Chris
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ient.
>
> NSDate is *not* a good choice for these sorts of comparisons, because it's
> always a date and a time, and it's not as simple as it seems. Consider this
> (unlikely) example:
However Core Data models "dates" using NSDate. If you needed to mode
On 5 Jan 2010, at 19:41, Nick Zitzmann wrote:
>
> On Jan 5, 2010, at 12:23 PM, Chris Ridd wrote:
>
>> However Core Data models "dates" using NSDate. If you needed to model dates
>> without times in Core Data (and be able to sort/filter on them) what would
>
On 5 Jan 2010, at 20:56, Sean McBride wrote:
> On 1/5/10 7:23 PM, Chris Ridd said:
>
>> However Core Data models "dates" using NSDate. If you needed to model
>> dates without times in Core Data (and be able to sort/filter on them)
>> what would you do?
&
As someone who lives in a zip code that was added in 2004, yet STILL shows up
as invalid in countless databases, I can't stress this point enough. Do not
maintain data yourself that someone else has a reason/motivation and the
resources to maintain. Just send it to the service, and catch the f
is also a good resource.
You can also write your own dtrace scripts to track messages to
retain/release/autorelease to your own objects and that can help filter down
the noise to only those objects of the class which are causing you problems.
.chris
--
Chris Parker
iPhone Frameworks
Apple
I'm trying to set the selected item in an NSBrowser.
I don't want to use setPath: because the items I'm storing in the browser are
not unique, so therefore paths are not unique.
I'm trying to use setIndexPath: but when I try the program throws an exception:
HIToolbox: ignoring exception 'setS
>Another factor to consider is that you will need to maintain PowerPC
>hardware to test on.
>
>--Kyle Sluder
I had a 50,000 line Cocoa program, and I thought about restricting it to Intel
for that reason, but then I thought heck, I'll build it universal and throw it
out there. Not a single bu
Yes, I'm doing 10.6. But I don't see anything about "item based" in
NSBrowser.h, nor anything else that looks enlightening.
From: Corbin Dunn
To: Keary Suska
Cc: Chris Idou ; cocoa-dev@lists.apple.com
Sent: Sat, 16 January, 2010 3:
On Jan 18, 2010, at 2:43 PM, David Catmull wrote:
> Is there any way to make sheets open instantly, instead of animating? I'd
> just like to speed up my unit tests.
Why do your unit tests need to bring up sheets?
— Chris
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I'm trying to use the file system events api, but what I'm seeing seems wierd.
Firstly, the documentation as I read it says you can store the last event id,
and pass that to FSEventStreamCreate next time to carry on where you left off.
However what I'm seeing if I do that, is it immediately re
Firstly, I don't think that actually makes sense, given the whole point of the
lastEventId.
Secondly, it only does it for the first folder you pass in, so it isn't even
consistent.
But yes I guess one could compare and ignore.
From: Graham Cox
No, I'm not using FSEventStreamCreateRelativeToDevice, I'm using
FSEventStreamCreate. What you quote is only relevant to
FSEventStreamCreateRelativeToDevice.
From: Graham Cox
To: Chris Idou
Cc: cocoa-dev@lists.apple.com
Sent: Fri, 29 January,
I've got a NSPanel HUD that I need to be able to pop up above other
applications, but I need to pop only the HUD, and not other windows in my
application. So naturally I'm using:
SetFrontProcessWithOptions(&psn, kSetFrontProcessFrontWindowOnly);
However, it still pops up all my windows, and
may also be some classes that don’t support NSCoding at all that can be
referenced by a nib file, such as Cocoa’s NSWindow class.
That’s why you don’t load nib files using NSKeyedUnarchiver, but instead by
using one of the methods on NSBundle (or for Cocoa, N
hod to obtain permanent IDs can
fail and return an error.
Obtaining permanent IDs for objects requires a transaction, because in
non-atomic persistent stores (e.g. the SQLite persistent store) you may have
multiple requests happening at a single time aga
tion I would have is to try splitting them off into their own entity,
and measure performance of performing queries directly against that entity.
— Chris
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In a window displaying a "widget" object I am using an outlineview
bound to an NSTreeController as master view. When I notice the OV
selection change via outlineViewSelectionDidChange I filter a
tableview bound to an NSArrayController in one of two ways like so...
Method 1 :: use setFilterP
This can be quite a religious argument, but speaking from experience of code
that's been rigorously hacked time and again, the only effective way to disable
parts of your code is to not have that code in the executable. E.G. a compile
a demo version, and a real licensed version. Having code ex
I have two synthesized properties - A and B. Whenever A changes I need
B to be updated to A.keypath. Is the correct way to do this to
override the synthesized setter of A like so?
-(void)setA:(id)value
{
A = value
[self setB:A.keypath];
}
Thanks.
_
On Feb 28, 2010, at 9:28 AM, Jean-Daniel Dupas wrote:
Le 28 févr. 2010 à 17:23, Chris Tracewell a écrit :
I have two synthesized properties - A and B. Whenever A changes I
need B to be updated to A.keypath. Is the correct way to do this to
override the synthesized setter of A like so
On Feb 28, 2010, at 9:26 AM, Jens Alfke wrote:
On Feb 28, 2010, at 8:23 AM, Chris Tracewell wrote:
I have two synthesized properties - A and B. Whenever A changes I
need B to be updated to A.keypath.
If B's value is entirely dependent upon A, you don't even need to
synthesiz
ivalent NSURL instance.
— Chris
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struments, you can use “Build & Analyze” to run the clang static
analyzer against your code.
Among other checks, the static analyzer understands and can validate Cocoa
memory management and catch both over-releases and leaks.
— Chris
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quest, the server returns an error, because
there is an extra / in the request line:
Bad request line: REPORT bernard/work/ / HTTP/1.1
Am I doing this the wrong way or is this not possible?
Thanks,
--Chris
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nager componentsToDisplayForPath:].
http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Classes/NSFileManager_Class/Reference/Reference.html
.chris
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n services.
-- Chris
On May 30, 2009, at 5:57 PM, Ammar Ibrahim
wrote:
On Sun, May 31, 2009 at 3:27 AM, Kyle Sluder
wrote:
On Sat, May 30, 2009 at 5:20 PM, Ammar Ibrahim >
wrote:
1- How do you ensure only one instance of your app is running? How
do you
detect if it stops respon
On May 30, 2009, at 11:18 PM, Ammar Ibrahim wrote:
On Sun, May 31, 2009 at 6:16 AM, Chris Hanson wrote:
The best way to ensure your daemon or agent is always running is to
have it
run via launchd.
Start by reading the launchd man page and the "Daemons and Agents"
tech
note;
e",
img, @"ApplicationIcon",
@"Copyright notice", @"Copyright",
@"App Version", @"ApplicationVersion",
nil];
[[NSApplication sharedApplication]
orderFrontStandardAboutPanelWithOptions:options];
}
And done a lot of googling. My other thoug
th:toPath:error: but does anyone know why I'd be getting
that logged? Very confusing.
This is a known bug and has been fixed in a future release of the
operating system.
.chris
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Apple Inc.
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yone who uses this utility tell me how to set the this environment
> variable? I'm thinking it's possible this must be set via GDB, otherwise I'm
> not sure where it could get a stack trace from. Thank you for helping.
It's easier if you use MallocDebug or Instruments.
Re
I have many occasions when a model's property needs to be transformed
to another type for use in a view. In this case I have a string of
pipe separated values that need to be transformed into a
NSMutableArray, manipulated in the interface and then converted back
to the pipe separated string
Thanks Kyle, I should've noted this is a non-document based app. That
said, I think your suggestion would imply to let the controller to
expose its own array property of the model's pipe-separated property?
Chris
On Jun 14, 2009, at 11:27 AM, Kyle Sluder wrote:
NSDocument is wh
s not the natural/logical format for cocoa use, and should be
a part of the model.
Chris
On Jun 14, 2009, at 3:08 PM, Ken Thomases wrote:
I think what Kyle meant is that your model is the values between the
pipe separators. The pipe-separated string format is part of your
file forma
I have a subclass of NSTableView which I have implemented keyDown to
pick up delete and enter key presses. When the TV is bound to an array
controller it works perfectly, I can detect keyDowns for the above
mentioned and as a bonus when the user presses "Enter" or "Return" the
field editor
t that was catching the insertNewLine:
selector for every control in the view when I only intended it for
some textFields.
Thanks for the help - it is working now.
Chris
On Jun 18, 2009, at 5:22 PM, Raleigh Ledet wrote:
I don't think this is normal. When a field editor is up, the Ret
nabled", "YES", 1) ;
setenv("NSAutoreleaseFreedObjectCheckEnabled", "YES", 1) ;
#endif
That should do the job, right?
You're too late. The code which sets up zombies fires before main() -
you'll need to set this in the envi
;t
really have the concept of words.
Regards,
Chris
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view draws above and/or after the scroll view,
> or else it may get painted over.
Subviews are always drawn after the parent (for obvious reasons if you
think about it), so if I correctly understand the point you're trying
to make, there won't be a problem.
Regards,
Chris
WWDC
(so bear in mind, it's second hand). The Wikipedia article regarding
words is an interesting read.
Kind regards,
Chris
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I've written a reasonably non-trivial app using GC and using a fairly wide
range of APIs. I've found several GC bugs in the Apple frameworks, which
naturally enough are pretty annoying (as all memory problems are), but I don't
think the annoyance is still anywhere near that of having to write
I'm trying to load a NIB from my application that exists in a subframework.
Since the doco for loadNibNamed:owner: says that it looks in the bundle
"associated"
with the owner, I'm creating an object of a class that exists in the
subframework to pass as the owner.
However, it doesn't find the
/* Only look at ethernet addresses */
if (e->sdl_alen == ETHER_ADDR_LEN) {
unsigned char *a = LLADDR(e);
printf("%.2X%.2X%.2X%.2X%.2X%.2X\n",
a[0], a[1], a[2], a[3], a[4], a[5]);
}
}
}
On Jun 24, 2009, at 09:14, Philip Aker wrote:
> Like Gwynne, I'm comfortable with the traditional "reap what you sow"
> philosophy. This has benefits in that the basic policy spills over into
> other areas of programming and gradually, one
>learns as a matter of habit, to account for things
On 24/06/2009, at 11:20 PM, Chris Idou wrote:
>> Since the doco for loadNibNamed:owner: says that it looks in the bundle
>> "associated"
>> with the owner, I'm creating an object of a class that exists in the
>> subframework to pass as the owner.
>&g
On Jun 24, 2009, at 18:19, Jeff Laing wrote:
> we regularly cache hundreds of thousands of objects from a persistent
> (relational) store and it is absolutely critical to us that the instant that
> those objects aren't required, they give their
> memory back - that's how we can run in a machine
From: Bill Bumgarner
..
Bill I don't know if this was discussed before, but could you discuss the
lack of GC on the iPhone?
Access Yahoo!7 Mail on your mobile. Anytime. Anywhere.
Show me how: http://au.mobile.yahoo.com/mail
, Chris Idou wrote:
> Bill I don't know if this was discussed before, but could you discuss the
> lack of GC on the iPhone?
I suspect it is for performance reasons. The Objective-C garbage collector is
designed to run in a separate thread on the Mac, which means it can run on i
.of course, the iPhone does not have virtual memory, so its not an issue
there.
From: Adam R. Maxwell
To: cocoa-dev Dev
Sent: Friday, 26 June, 2009 1:32:51 PM
Subject: Re: GC pros and cons
On Jun 25, 2009, at 8:19 PM, Chris Idou wrote:
> I still use XCode in
From: James Gregurich
> I have read up on GC, and I don't like the idea of introducing
> non-deterministic behavior into my code base.
I would question the assertion that GC introduces non-deterministic behavior,
unless you consider the time it takes for p
ver the service that you're launching? Is it your
own code? If so, there are other IPC mechanisms you could use.
Regards,
Chris
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one. Still, if it's your own code, it's
sometimes easier to use an IPC mechanism which was what I was trying
to say.
Regards,
Chris
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From: James Gregurich
> 3) I don't allow exceptions of any kind to propagate into alien
> codeparticularly the cocoa runtime.
Given that Objective-C doesn't have declared exceptions (like Java), it seems
more likely that you "hope" exceptions are not
Hi,
I'm new to Mac programming (and software engineering in general), so I
apologize in advance if my terminology is wrong.
I'm currently developing a plug-in (a Print Dialog Extension to be
exact) and wanted to make sure only one instance of the plug-in is
allowed to be in "editing mode" f
--- Using GC ---
I am saving images to file from an NSImage dropped into an NSImageView
using JPEG as the file format via the code below.
-(IBAction)saveImages:(id)sender
{
TKProduct *theProduct = [[myProductArrayController selectedObjects]
objectAtIndex:0];
NSBitmapImageRep *th
wrote:
On Jun 29, 2009, at 4:12 PM, Chris Tracewell wrote:
The issue is that when using writeToFile my images have an extra 3
to 10 KB of size whether the image is really small or really big -
ie 5KB or 300KB. I am suspecting that my XCode generated images are
bigger for one of two reasons.
Steven,
Thanks for the link very nice info.
Rob,
Thanks - that is a huge help to get going with file meta data
manipulation!
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some path
where libcurl can be found ... which is???
3) import the or into my controller class -
(seems straight forward)
I have tried a bizillion combos of the above with enough revisions to
make me sick. Any help is much appreciated.
Thanks
Chris
whether I dynamically link or statically link, is
there a manual anywhere that describes how to do this in XCode?
Thanks
Chris
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C
On Jun 30, 2009, at 8:55 PM, Nick Zitzmann wrote:
On Jun 30, 2009, at 9:49 PM, Chris Tracewell wrote:
Finally, just to be sure to be sure to steer things back to my
original question... whether I dynamically link or statically link,
is there a manual anywhere that describes how to do this
e project to
compile without errors. However I am stck with implementation
details... I'll start a new thread for that.
Thanks
Chris
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I've gotten libcurl linked and ready to use thanks to many
contributors from a previous post here. Does anyone have a snippet
code or link of an example of writing a callback function for say
CURLOPT_READFUNCTION?
Thank you
Chris
___
Chris Tracewell wrote:
I've gotten libcurl linked and ready to use thanks to many
contributors from a previous post here. Does anyone have a snippet
code or link of an example of writing a callback function for say
CURLOPT_READFUNCTION?
What have you tried?
For example, I found a numb
On Jul 1, 2009, at 3:21 PM, Geoff Beier wrote:
On Wed, Jul 1, 2009 at 5:42 PM, Chris Tracewell
wrote:
I've gotten libcurl linked and ready to use thanks to many
contributors from
a previous post here. Does anyone have a snippet code or link of an
example
of writing a callback fun
data begins to shift
by a pixel per row, until it eventually is superimposed on the row above it.
This seems like a bug with the NSTableView class, but perhaps I'm doing
something wrong. Has anyone else run into this problem?
Chris
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binding, or a target-action connection, in your application or
framework’s unit tests.
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Con
guages do. In Objective-C, all
method dispatch is dynamic, even to classes, and is subject to override.
-- Chris
On Jul 5, 2009, at 10:47 AM, Dimitri Bouniol wrote:
You can't tell 'self' to be allocated.
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nstance of the entity
and delete them one at a time.
-- Chris
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Because you have no idea what subclassers may do in their overrides of
the accessors (e.g. The subclassed accessor may rely on state that's
been torn down earlier in -dealloc).
It's just not safe, unless you can guarantee that you own the entire
inheritance chain.
.chris
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