Memory Leak in Delta

Data Abstract
1

Hello,

we found a Leak in a DataAbstract component.

for (DADataTable *table in aDataTables)
{
DADelta *delta = [[[DADelta alloc] init] autorelease];
[rda.dataStreamer readDelta:delta forTable:table];

	if ([delta hasErrors]) 
	{	
		hasErrors = YES;
		[errors addObjectsFromArray:[delta errors]];
		errorMessages = [errorMessages stringByAppendingString:[delta errorMessages]];
		
		for (DADeltaChange *change in [delta errors])
			[self remoteDataAdapter:rda didFailToApplyChange:change forTable:table];//_MC
	}
    
    NSString *entityid = [(TSyncObjectRec*)[objects objectAtIndex:i] idEntityTypeID];
	[self serverAnswerDelta:delta forEntity:entityid];//_MC
	[table processDelta:delta andMergeChanges:YES];
	progress += progress_step;//_MC
    i++;
}
[rda.dataStreamer finalizeStreamer];

The leak happens in “[rda.dataStreamer readDelta:delta forTable:table];”

The deepest instruction is:

  • (void)readUtf8String:(NSString **)value
    {
    int32 strlength = [self readInt32];
    if (strlength > [data length] - position) {
    [ROBinHelpers unexpectedStringLength];
    }
    *value = [[[NSString alloc] initWithBytes:bytes+position length:strlength encoding:NSUTF8StringEncoding] autorelease];
    [self advancePositionBy:strlength];
    }

Where the Leak is in “*value = …”

Is there something wrong in my code or yours?

Kind regards

Stephan

2

Hi Stephan

I’ve checked the code but couldn’t find problems there.
Can I ask you to provide a small test case where this problem is present, and I’ll try to analyze it.

You can send it directly to support@remobjects.com

Thanks

3

therefore i would have to setup a testserver, testclient etc. Or do you have a best practise to setup a testproject for that?

Stephan

4

Hi,

You can use for example our samples server application but setup your client for it which will do the same as your real leaking client does