Databases
StackOverflow2013
Postsdbo
POUsing NSAutoreleasePool with NSURLConnection
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POUsing NSAutoreleasePool with NSURLConnection
    text
    copied!<p>I am trying to follow the XMLPerformance example to make an xml parser of my own. So far I'm having the hardest time making autorelease pools work, I get a crash the instant I recreate a pool.</p> <p>I narrowed down the issue to this test case:</p> <h2>PoolCrashTest.h</h2> <pre><code>#import &lt;SenTestingKit/SenTestingKit.h&gt; @interface PoolCrashTest : SenTestCase { @private NSURLConnection *connection; NSAutoreleasePool *downloadAndParsePool; BOOL done; } @property (nonatomic, retain) NSURLConnection *connection; @property (nonatomic, assign) NSAutoreleasePool *downloadAndParsePool; - (void)downloadAndParse:(NSURL *)url; @end </code></pre> <h2>PoolCrashTest.m</h2> <pre><code>#import "PoolCrashTest.h" @implementation PoolCrashTest @synthesize downloadAndParsePool, connection; - (void)downloadAndParse:(NSURL *)url { done = NO; self.downloadAndParsePool = [[NSAutoreleasePool alloc] init]; NSURLRequest *theRequest = [NSURLRequest requestWithURL:url]; self.connection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if (connection != nil) { do { [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]]; } while (!done); } self.connection = nil; [downloadAndParsePool release]; self.downloadAndParsePool = nil; } #pragma mark NSURLConnection Delegate methods - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [downloadAndParsePool drain]; </code></pre> <p><strong>crash after this line ^</strong></p> <pre><code> self.downloadAndParsePool = [[NSAutoreleasePool alloc] init]; } - (void)testPoolCrash { NSURL *dumpURL = [NSURL URLWithString:@"file:///some.xml"]; [NSThread detachNewThreadSelector:@selector(downloadAndParse:) toTarget:self withObject:dumpURL]; sleep(10); } @end </code></pre> <p>Can someone explain how to properly purge autorelease pool in a NSURLConnection delegate running in a thread?</p> <p>I have tried to follow XMLPerformance as close as possible... I'm targeting Lion with mostly default project settings.</p>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload