Network port listening
I am writing an application (an instant messenger). I would like to know whether IOS supports application to listen to a particular ports for incoming packet continuously (when the application is active not suspend).
Short answer: yes
Long answer: Chris provided a link how to deal with sockets using CFNetwork Framework. I'd like to add the hint for cocoa-asyncsocket, a light-weight object-orientated wrapper for that framework. A true time-saver.
Survey says: yes.