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Does anyone tell is GNUstep NSRunLoop extension functions:

  • (void) addEvent: (void*)data type: (RunLoopEventType)type watcher: (id)watcher forMode: (NSString*)mode;

this method is work?, and how to setup the argument data? I set a pipe to read file description, but it seems not work fine. Really hard to figure out the question, can anyone help me?

Fred Frith-MacDonald
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codeplay
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1 Answers1

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This method works. Please show more of your code.

eg. for reading, [[NSRunLoop currentRunLoop] addEvent: (void*)anFd type: ET_RDESC watcher: anObj // must implement receivedEvent:type:extra:forMode: forMode: NSDefaultRunLoopMode]; // rtfm

Fred Frith-MacDonald
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  • thanks for your reply! and i code like your code , my design is: I used pipe to post the information to the the other thread.I pipe_write a message, i want the other thread could listen to the pipe read, so i can handle the message on the thread. so i set addEvent: pipe_read, but it cant be work, i don't know the reason.should i do some magic thing to make the addEvent: function work? – codeplay Dec 24 '12 at 03:43
  • There is no magic, addEvent:.. just adds the file descriptor to the system poll. I'm still not sure what you are trying to do here. Did you use NSThread? ie.-detachNewThreadSelector:toTarget:withObject: ? Or use distributed Object or perform selector on main thread? May be you can show more code or a minimal test case so I can get a clearer picture on what you are doing, how you actually run the loop, how you manage the loops between threads, even how you create the thread et al. You can also show the code to the GNUstep mailing list. They are very responsive. – Fred Frith-MacDonald Dec 24 '12 at 08:23