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.

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