Does [NSNetService getInputStream:outputStream:] really return retain objects and where does it say that

[Markus Spoettl]

Hi,





{
  if (!netService) {
    [self setup];
    return;
  }


    [self _showAlert:@"Failed connecting to server"];
    return;
  }

  [self openStreams];
}

Note the comment above "if (![netService getInputStream...".





So, am I blind? I can't find where it says they are.



Regards
Markus
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__________________________________________
Markus Spoettl

I'm puzzled by a comment in the WiTap iPhone SDK example project that I can't confirm through documentation or header comments. The method and comment is this (AppController.m line 214 onwards): - (void) browserViewController:(BrowserViewController *)bvc didResolveInstance:(NSNetService *)netService // note the following method returns _inStream and _outStream with a retain count that the caller must eventually release if (![netService getInputStream:&_inStream outputStream:&_outStream]) { The documentation doesn't back this assertion, neither does the header comment in NSNetServices.h. According to the memory management rules the method should return autoreleased streams. Sure enough the author of the example project believes what he says because the project doesn't retain the streams anywhere. And surprisingly the project doesn't crash which if should at some point if the streams where auto-released - so they must be retained. Looking a bit further the same kind of comment pops up in on other example too (Cocoa SimpleNetworkStream) where it also references a radar (rdar://problem/6868813), so this is known. Why not add a note to getInputStream:outputStream: then?

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