Distributed Objects & Leopard

FROM : Guy Meyer
DATE : Sun Nov 18 22:00:26 2007

My client server application communicate over sockets  using 
NSConnection.

On the client side, there are multiple threads (not the main thread), 
communicating with the server.

Each thread has a single NSConnection. The connection is terminated by 
issuing an invalidate method on the connection and the thread is 
existed.

On Tiger there is no problem with said architecture.

On Leopard few seconds after the thread being terminated, all other 
threads (which contains an active NSConnection to the server) receives 
the following exception (if there are no more threads connected to the 
same server, the exception does not occur - in this example there 3 
threads which receive the exception):

*** NSDistantObject initWithCoder: 0x3 not given away for conn 
0x1514bde0
*** -[NSConcretePortCoder decodeInvocation]: no local target
*** NSDistantObject initWithCoder: 0x4 not given away for conn 
0x1514f9d0
*** -[NSConcretePortCoder decodeInvocation]: no local target
*** NSDistantObject initWithCoder: 0x2 not given away for conn 
0x1515e1f0
*** -[NSConcretePortCoder decodeInvocation]: no local target

I have tried few way to circumvent the issue, like invalidating ports 
instead of the connection or continuing running the runloop before 
existing the thread (but as there are are no more input sources the 
runloop return immediately)

I am looking for ways to terminate the connection without the exception.

Thanks

Guy Meyer