Re: NSRunLoop questions

[Jay McCarthy]

So, I read up the NSFileHandle headers and source and started
experimenting with and I've hit a wall.
 
Currently my code is this (pardon my massive copy+paste, but my original
explanation that i wrote was basically the code so i figured it would be
better to have the code) -
#define NOTIFY(x,y) \
        [[NSNotificationCenter defaultCenter] addObserver:self \
     selector:(x) \
     name: (y) object:nil]; 

        listeningPort = [NSFileHandle fileHandleAsServerAtAddress: @"127.0.0.1"
service: @"9999" protocol: @"TCP"];
        NOTIFY(@selector(newClient:),
NSFileHandleConnectionAcceptedNotification);
        NOTIFY(@selector(clientInput:),
NSFileHandleReadCompletionNotification);        
        NOTIFY(@selector(clientInput:),
NSFileHandleDataAvailableNotification); 
        shouldRun = YES;
            
        [listeningPort acceptConnectionInBackgroundAndNotify];
        while(shouldRun) {
                [NSRunLoop run];
        }

        [[NSNotificationCenter defaultCenter] removeObserver:self];

then in newClient -
        NSDictionary *clientInfo = [notification userInfo];
        NSFileHandle *clientHandle = [clientInfo objectForKey:
NSFileHandleNotificationFileHandleItem];

        [listeningPort acceptConnectionInBackgroundAndNotify];

        [clientHandle writeData: [NSData initWithString: @"Welcome\r\n"]];
        [clientHandle waitForDataInBackgroundAndNotify];        

and in clientInput -
        NSDictionary *clientInfo = [notification userInfo];
        NSFileHandle *clientHandle = [notification object];

        if ( [notification name] == NSFileHandleReadCompletionNotification ) {
                NSData *inputData = [clientInfo objectForKey:
NSFileHandleNotificationDataItem];

                if ( [inputData length] > 0 ) {
                        [clientHandle writeData: inputData];
                        [clientHandle waitForDataInBackgroundAndNotify];        
                } else {
                        [clientHandle closeFile];
                }
        } else if ( [notification name] ==
NSFileHandleDataAvailableNotification ) {
                [clientHandle readInBackgroundAndNotify];                       
        }

**** END ****

The problem I'm having is that once I make two connections to
127.0.0.1:9999 - the second one is immediately disconnected :
~/GNUstep/Development/Projects $ telnet 127.0.0.1 9999
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
Welcome
Connection closed by foreign host.
~/GNUstep/Development/Projects $ 
While the first one does just what I need. I tried to install
notification receievers for every notification that NSFileHandle gives
but none of them were called. I put into debugging to display what mode
of the RunLoop I was in at each step and it was always NSDefaultRunLoop.

So right now I have no idea what to do - it's probably something stupid
I'm not doing or something in the header/examples that i've overlooked.

TIA,
Jay

-- 
Jay McCarthy <jay@kenyamountain.com>