Re: NSSocketPort bug?

FROM : Malte
DATE : Wed Dec 15 22:56:52 2004

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Hey Douglas,

thanks for your response to my post. I'm actually quite a bit irritated 
and i'll let you all know why.
I have the "Cocoa in a Nutshell" by O'Reilly book (glad i didn't buy it 
myself)
and one chapter touches the networking briefly. It closes with a little 
bit code which implements both,
a minimalistic client and a minimalistic server.
I'll post the client code here as it is written in the book (which, by 
the way, is an ADC recommended title!)

/****CODE EXCERPT FROM "COCOA IN A NUTSHELL" - O'Reilly****/
- - -(void) startClient
{
   NSSocketPort * sockPort;
   sockPort = [[NSSocketPort alloc]
       initWithTCPPort:12345 host:@"10.0.1.3"];
   int sockFD = [sockPort socket];
   
   NSFileHandle * clientSocket;
   clientSocket = [[NSFileHandle alloc]
       initWithFileDescriptor:sockFD];
   
   NSNotificationCenter * nc;
   nc = [NSNotificationCenter defaultNotificationCenter]; //this should 
be 'defaultCenter' instead
   [nc addObserver:self
         selector:@selector(processServerData:)
       name:NSFileHandleReadCompletionNotifcation
       object:clientSocket];
   
   [clientSocket writeData:dataToWrite];
   [clientSocket readInBackgroundAndNotify];
}
/
************************************************************************
*****/

then follows a little "processServerData" method which is irrelevant 
right now.
So after reading your answer very carefully and all the research i've 
done myself is this a piece of
code that could actually never work, let alone work the way that it 
implies it will.

I find it somewhat absurd, that a book that is branded with the "ADC 
recommended title" emblem
is demonstrating nonsensical code that in fact sends you down the wrong 
alley altogether.

I guess will start digging into DO, NSStream and some publicly 
available wrapper classes now or
just do it W.Richard Stevens-style myself :-(

Thanks again for your response to my problem you two! :)

- - -malte
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