Crash in readStreamHasBytesAvailable in arc project following set up instruction

[otusweb]

I created a brand new projection Xcode 4.3.2
set type to iphone arc project
set project type to single view
in the controller:

in .h file
@Property (nonatomic, strong) OFFlickrAPIContext *context;

in .m file

• (void) viewWillAppear:(BOOL)animated
  {

  // Do any additional setup after loading the view, typically from a nib.

  self.context = [[OFFlickrAPIContext alloc] initWithAPIKey:@"6903cd1cb6a4bc92e906b76d60c34f63"
  sharedSecret:@"4055df0dfc06e60f"];

  OFFlickrAPIRequest *request = [[OFFlickrAPIRequest alloc] initWithAPIContext:_context];

  // set the delegate, here we assume it's the controller that's creating the request object
  [request setDelegate:self];

  NSMutableDictionary *params = [NSMutableDictionary dictionaryWithCapacity: 5];
  [params setObject:@"2000-01-01 00:00:00" forKey:@"max_taken_date"];
  [params setObject:@"47.60569" forKey:@"lat"];
  [params setObject:@"-122.338561" forKey:@"lon"];
  [params setObject:@"date_taken" forKey:@"date_taken"];

  [request callAPIMethodWithGET:@"flickr.photos.search"
  }

run the app in simulator
=> app crash, in LFHTTPrequest::readStreamHasBytesAvailable on line 215
_delegate is pointing to a dead pointer

[lukhnos]

Did you build ObjectiveFlickr also with ARC? Or is OF built with retain-release?

Another potential issue is that your view is already gone but the OF request is not properly canceled (and it's better to set delegate to nil after canceling).

[otusweb]

I had not turned on ARC for OF. Did so today, but it still crashes at the same place. I have a single view controller and it is not going away as i don't have any view transition.
When i trace through the creation of the request, the _delegate on the LFHTTPrequest is set to the OFFlickrAPIRequest, so not an object i own. THe delegate on LFHTTPRequest is set by the framework.

I started using the branch set to use ARC and it is working fine, so i suspect there is something not working in the ARC implementation on the main branch

Olivier

[otusweb]

I had not turned on ARC for OF. Did so today, but it still crashes at the
same place. I have a single view controller and it is not going away as i
don't have any view transition.
When i trace through the creation of the request, the _delegate on the
LFHTTPrequest is set to the OFFlickrAPIRequest, so not an object i own. THe
delegate on LFHTTPRequest is set by the framework.

I started using the branch set to use ARC and it is working fine, so i
suspect there is something not working in the ARC implementation on the
main branch

Olivier
http://www.flickr.com/photos/otusweb/
http://www.climberbeta.com

On Tue, May 15, 2012 at 8:44 PM, Lukhnos D. Liu <
[email protected]

wrote:

Did you build ObjectiveFlickr also with ARC? Or is OF built with
retain-release?

Another potential issue is that your view is already gone but the OF
request is not properly canceled (and it's better to set delegate to nil
after canceling).

---

Reply to this email directly or view it on GitHub:
#33 (comment)

[marsson]

Hi Olivier...
I am having the same problem. But i cannot see a ARC branch on the git of the project. Where did you get that?
cheers.

[otusweb]

try this https://github.com/Angel91/objectiveflickr.git

Olivier
http://www.climberbeta.com

On Thu, Jul 12, 2012 at 3:43 PM, marsson <
[email protected]

wrote:

Hi Olivier...
I am having the same problem. But i cannot see a ARC branch on the git of
the project. Where did you get that?
cheers.

---

Reply to this email directly or view it on GitHub:
#33 (comment)