On May 6, 2010, at 8:08 PM, Kyle Sluder wrote:
> On Thu, May 6, 2010 at 7:21 PM, Brent Smith <liare...@hack3r.com> wrote:
>> I have an NSTask thats running a method for me and Im trying to debug why
>> its currently not working. I can go about using my program normally when I
>> select Build and Run, but when I add a breakpoint and select Build and Debug
>> I get an EXC_BAD_ACCESS. Normally this is caused by some sort of
>> deallocation, but Im not dealing with any deallocating objects. Turning on
>> NSZombieEnabled doesnt change anything. The code is as follows
>
> Where are you putting the breakpoint? Where does this code live? Who calls it?
breakpoint is going on the if(!newLinesString isEqualToString:@""]) line
It lives in the appdelegate and its called by the notification center,
[[ NSNotificationCenter defaultCenter ] addObserver: self
selector: @selector(newLines:)
name:
@"NSFileHandleDataAvailableNotification"
object: [pipe fileHandleForReading]];
>
>> mainPool = [[ NSAutoreleasePool alloc ] init ];
>>
>> NSData *newLines;
>> NSString *newLinesString;
>> newLines = [[aNotification object] availableData ];
>> newLinesString = [[[NSString alloc ] initWithData: newLines
>> encoding:NSUTF8StringEncoding] retain];
>>
>> if(![newLinesString isEqualToString:@""])
>> {
>> NSArray *tempArray = [newLinesString
>> componentsSeparatedByString:@"\n"];
>> NSMutableArray *mArray = [[NSMutableArray alloc]
>> initWithArray:tempArray];
>>
>>
>> I also receive this error just before the call.
>
> What call?
>
Just before NSArray *tempArray = [newLinesString
componentsSeparatedByString:@"\n"];
>> If I look at my newLinesString variable in the Locals section, it looks
>> perfect.
>
> Except for the fact that you've done [[NSString alloc]
> initWithData:encoding:] retain], thus double-retaining it.
Again ignore the retain, I was just messing around, meant to remove that from
the post.
>
> --Kyle Sluder
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