OK, thanks for the links, and the help - I am going to read through and apply
what I have learned to my code, I have already managed to fix two other leaks
as a result of what I have learned.
Thank you.
On 28 Mar 2010, at 19:03, Philip Mobley wrote:
>
> On Mar 28, 2010, at 10:42 AM, mmalc Cr
I cache the fields array on the first run so that the method is efficient -
this is a generic SQLite db wrapper that may potentially be used to access
1000s of rows, and it seems perfectly reasonable that I should be able to store
the fields in between SELECTs
On 28 Mar 2010, at 19:04, Jack Ca
> -(NSDictionary *)fetch {
> NSMutableDictionary *output = nil;
> if (db != nil && sth != nil) {
> int c = sqlite3_column_count(sth);
> if (fields == nil) {
> fields = [[NSMutableArray alloc] init];
> for (int i =
, Klaus Backert wrote:
>
> On 28 Mar 2010, at 18:40, Michael Davey wrote:
>
>>> 1. Some other piece of code assigns a new value to 'myFields' without
>>> releasing the old value.
>>
>> That is the only part of my code that adds values to the fi
On 28 Mar 2010, at 02:14, Quincey Morris wrote:
> On Mar 27, 2010, at 16:51, Noah Desch wrote:
>
>> If you are *not* using getters and setters but instead have myFields
>> declared as:
>>
>> @interface MyClass
>> {
>> NSMutableDictionary *myFields;
>> }
>>
>> and you use the above line o
Thank you all so much for your responses - I will give them much better
attention tomorrow, and sober :o)
On 28 Mar 2010, at 02:23, Klaus Backert wrote:
>
> On 27 Mar 2010, at 23:16, Quincey Morris wrote:
>
>> On Mar 27, 2010, at 14:11, Klaus Backert wrote:
>>
>>> something like this (caution
On 27 Mar 2010, at 22:16, Quincey Morris wrote:
> On Mar 27, 2010, at 14:11, Klaus Backert wrote:
>
>> something like this (caution: typed in mail, etc.)
>
>
> Yeah, something like this, but *not* this:
>
>> self.myFields = [[NSMutableArray alloc] init];
>
> That's a memory leak right t
s when you assign a
> newly allocated array to feilds.
>
> You should either release fields before reassigning it (conditionally if it
> is not nil), or do not reallocate memory for it, instead empty it and reuse
> the existing memory.
>
> Sandor Szatmari
>
> On Mar
Hi!
I have been running my iPhone application through the Leaks Instrument in an
attempt to further understand what I have been coding, however, I fear I do not
know enough about how retain/release work to be able to fix my leaks, and I was
wondering if I could paste one trouble spot function t
NSURLConnection was indeed more appropriate for what I needed, and what I ended
up using.
On 21 Mar 2010, at 18:06, Jack Carbaugh wrote:
> NSURLConnection does this as well. The main issue i had with using an
> NSOperation/OperationQueue was that is was "serial" ... using the
> NSURLConnection
That worked a treat - thanks. I was already aware of the threading issues as
have developed for the Mac before, but thanks for the heads up
On 19 Mar 2010, at 17:55, WT wrote:
> On Mar 19, 2010, at 6:40 PM, Michael Davey wrote:
>
>> OK, so I have changed the code to show a place
Thank you for your help
On 19 Mar 2010, at 20:04, Don Quixote de la Mancha wrote:
> While Guard Malloc didn't find this particular problem, before you
> deliver to your client you would do well to test your entire
> application with Guard Malloc enabled. If it complains, then you've
> got a bug
I will, but for now I just need to get this out of the door for a client -
however, it certainly looked like a very powerful tool.
On 19 Mar 2010, at 19:43, Greg Parker wrote:
> On Mar 19, 2010, at 11:55 AM, Michael Davey wrote:
>> Thanks, I have managed to find and fix my error, just
Thanks, I have managed to find and fix my error, just by using Zombies - I
turned on Guard Malloc and it didn't do anything, and I tried instruments and
found myself in a whole new world of things I have no idea how to use :o)
On 19 Mar 2010, at 18:09, Don Quixote de la Mancha wrote:
> On Fri,
Thank you both for your suggestions, I will give them a go later :o)
On 19 Mar 2010, at 18:09, Don Quixote de la Mancha wrote:
> On Fri, Mar 19, 2010 at 11:00 AM, Nick Zitzmann wrote:
>> Run your app with Instruments with the object alloc tool, and turn on
>> reference counting and zombies. And
available. You
> should not do anything to interrupt smooth scrolling.
>
> Luke
>
> On Mar 19, 2010, at 10:18 AM, Michael Davey wrote:
>
>> Another question...
>>
>> In my application, I have several connected UITable views, and on the last
>> level, I am
Another question...
In my application, I have several connected UITable views, and on the last
level, I am displaying images that may or may not already be cached, what I
would like to know is whether there is some way I can display some sort of
notification to the user that this is what is hap
Hi,
I have just encountered the following error at (seemingly) random intervals
when trying to debug my iPhone application, and I was wondering what causes it
and how I might go about hunting it down so that I can try and fix it?
objc[22029]: FREED(id): message release sent to freed object=0x3b
I don't think that the OP wanted to iterate through the entire directory
though...
On 17 Mar 2010, at 16:15, Don Quixote de la Mancha wrote:
> Does readdir work on Mac OS X? I don't have a Mac handy right now to
> check, but it should work because so many *NIX programs build on OS X
> right out
ere is space left on the device you
> should be able to keep using it for storing your downloaded images.
>
> Regards,
> Thomas
>
>
> On 12 March 2010 08:08, Michael Davey wrote:
>> Hi,
>>
>> I am now being approached to develop an iPhone application for one
Hi,
I am now being approached to develop an iPhone application for one of my
clients which will involve storing a cache of previously downloaded images. My
question is whether or not there are constraints as to how my storage space I
have at my disposal, and whether any of you have a link to f
Hi,
I have, for a bit of fun, taken my first steps out of Mac development and into
iPhone development, and have encountered a bit of a problem.
Basically, what I want to do is update a UILabel when a button is clicked in
the view, but I want to be able to update it in intervals with different
Thanks for that!
On 18 Feb 2010, at 16:05, Sean McBride wrote:
> On 2/18/10 12:07 PM, Michael Davey said:
>
>> I am writing an app that needs to be able to target 10.5 at least and
>> hopefully 10.4, but I have just found that the way that table views are
>> handled h
OK, just did some reading on informal protocols, thanks a lot for your help
Mikey
On 18 Feb 2010, at 12:40, Graham Cox wrote:
>
> On 18/02/2010, at 11:37 PM, Michael Davey wrote:
>
>> My class is describes as follows:
>>
>> @interface AppController : NSObject
My class is describes as follows:
@interface AppController : NSObject
I tried removing NSObject and putting it there, but that did not work - any
clues?
Thanks, btw
On 18 Feb 2010, at 12:28, Graham Cox wrote:
>
> On 18/02/2010, at 11:21 PM, Michael Davey wrote:
>
>> We
e_Protocol/Reference/Reference.html
Suggest that it is available to 10.6 and later
Any idea what I might be doing wrong?
On 18 Feb 2010, at 12:14, Graham Cox wrote:
>
> On 18/02/2010, at 11:07 PM, Michael Davey wrote:
>
>> I have just found that the way that table views are handled h
Hi,
I am writing an app that needs to be able to target 10.5 at least and hopefully
10.4, but I have just found that the way that table views are handled has
changed - does anyone have a link to some documentation for the old way to do
things?
Many thanks,
Mikey___
I googled and found this, I hope it helps:
http://imlocation.wordpress.com/2007/09/13/strange-objects-nscftype-indicate-memory-management-bugs/
On 12 Jan 2010, at 14:54, Graham Cox wrote:
> Anyone got any idea what NSExtraMIData is?
>
> I'm getting a "unrecognized selector" error logged on thi
To elaborate and agree...
Run your thread in a loop such as:
while (isRunning) {
// work done here
}
and have a method such as:
-(void)stopThread {
isRunning = NO;
}
On 3 Jan 2010, at 16:56, Glenn L. Austin wrote:
> Your best bet -- have a flag that the thread can check for ex
:
>
> On Dec 24, 2009, at 4:25 AM, Michael Davey wrote:
>
>> Hi,
>>
>> I have googled around but have found nothing that can help me with this... I
>> have a menu in my application that I wish to add sub items to
>> programatically. I have the Menu itself connec
As far as I know, the system provides you with this choice.
On 26 Dec 2009, at 01:01, John Clayton wrote:
> Hi All
>
> I there a way to detect, on a system wide basis, that the dim/brightness keys
> (or volume keys) have been pressed?
>
> I tried using the event-tap API using a HID + head base
Hi,
I have googled around but have found nothing that can help me with this... I
have a menu in my application that I wish to add sub items to programatically.
I have the Menu itself connected up and I can add NSMenuItems to it just fine,
but seem at a loss to be able to add a sub menu and the
Not quite sure how but I seem to have fixed this - sorry for wasting your
time...
On 19 Dec 2009, at 18:22, Michael Davey wrote:
> Hi,
>
> I am experiencing a weird problem with my GC (if this is relevant)
> application when trying to re-display windows that are in the main xib fi
So the problem I was having with my googling was that I was trying alert, popup
and dialog - not sheet ;o)
On 19 Dec 2009, at 18:41, Ken Thomases wrote:
> On Dec 19, 2009, at 12:37 AM, Michael Davey wrote:
>
>> Sorry for the really noob posting, but I am currently using the NSAle
appropriate
> implementation ourselves. I like the new "Implementation" sections a lot,
> though currently they seem to only exist for the various views and controls.
>
> [1]
> <http://developer.apple.com/mac/library/DOCUMENTATION/UserExperience/Conceptual/AppleHIGuidelin
Hi,
I am experiencing a weird problem with my GC (if this is relevant) application
when trying to re-display windows that are in the main xib file. More
specifically, when I try to launch the preferences panel for the second time it
hangs the window with even the close button disabled. Is ther
Hi,
Sorry for the really noob posting, but I am currently using the NSAlert class
to display alerts in my application, but what I would rather do is display one
of the alert boxes that slide out of the title bar, as with the installer,
firefox and a slew of other applications. Does anyone know
you may need some other #if statements or may not, since you are not building
> for a different platform.
>
> Karolis
>
> On Mon, Nov 23, 2009 at 7:51 PM, Michael Davey wrote:
> I am about to add a new target to my project as it will be re-using a lot of
> the code g
I am about to add a new target to my project as it will be re-using a lot of
the code generated from my server application and I do not want to start
creating duplicate copies of classes that I am writing. So far, so good, I am
finding my way around making my new target, but have a quick questi
First off, sorry to those who I have offended by asking the question of whether
or not I can share my libs legally to this list. It was not my intention to do
that.
What I end up distributing with my application is still being considered, and I
hope to resolve that before I approach my clients
I want to share with you all the 4 arch version of the mysql libs that I went
to some trouble to make today, but in light of the information given to me
today by Andrew Farmer, I do not know if this is legal.
Anyone know? ___
Cocoa-dev mailing list (C
have
the 64bit PPC version as well - does anyone know if this is needed?
Many thanks to all for your help,
Mikey
On 23 Nov 2009, at 18:10, Andrew Farmer wrote:
> On 22 Nov 2009, at 22:33, Michael Davey wrote:
>> Yeah, thanks - but given that I cannot even get it to build I will worry
ile whenever you compile your app.
>
> Karolis
>
> On Sun, Nov 22, 2009 at 11:19 PM, Michael Davey wrote:
> I am using the mysql c library in my application, and have wrapped the C
> calls in an objective-C class (source available if needed).
>
> I have added the linking
On 23 Nov 2009, at 16:19, Michael Davey wrote:
> I am using the mysql c library in my application, and have wrapped the C
> calls in an objective-C class (source available if needed).
>
> I have added the linking references as per instructions I have found on the
> web an
I am using the mysql c library in my application, and have wrapped the C calls
in an objective-C class (source available if needed).
I have added the linking references as per instructions I have found on the web
and when I run my application in debug mode everything works just fine,
however, w
proof of how far superior the
Objective-C/Cocoa paradigm is to C#/.NET
Thanks again Fritz
On 21 Nov 2009, at 10:09, Michael Davey wrote:
>
> On 21 Nov 2009, at 08:19, Fritz Anderson wrote:
>
>> On 20 Nov 2009, at 2:02 AM, Michael Davey wrote:
>>
>>> Ba
Ooops, forgot the list...
> From: Michael Davey
> Date: 21 November 2009 09:59:39 GMT+11:00
> To: Jason Foreman
> Subject: Re: UI Question: Hide application window after minimising
>
> This is not what I wanted to do, but thanks...
>
> On 21 Nov 2009, at 08
Hi there,
This is my first post, so please be gentle ;o)
I am writing an application using obj-c/Cocoa and I was curious about something
I have seen in another application that I would like mine to be able to do.
Basically, when you minimise the application, it's window goes down into the
dock
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