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Re: spawing a server...
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Re: spawing a server...


  • Subject: Re: spawing a server...
  • From: j o a r <email@hidden>
  • Date: Wed, 9 Feb 2005 21:17:29 +0100

For networking client / server example code you might want to have a look at the Echo / Echo Client examples found in your /Developer/Examples/Networking folder. Or perhaps the PictureSharing / PictureSharingBrowser found in your /Developer/Examples/Foundation folder, for an example from higher level frameworks. Or check the list archives. Personally I would probably use something from CFNetwork, and / or NSStream APIs.

For communication between threads, you can use "performSelectorOnMainThread:" for one-way communication from a background thread to the main thread, or Distributed Objects (DO) for a two-way link - or pick any old trick from your favourite handbook in C programming.

j o a r

On 2005-02-09, at 19.02, Brian O'Brien wrote:

I want to spawn a communications server in main.mm

MyServer s;
datatype ourDataQueue;

int main(int argc, char *argv[])
{
    try
    {
	s.start(ourDataQueue);
        return NSApplicationMain(argc,  (const char **) argv);
    }
    catch (const char *msg)
    {
        printf("%s\n", msg);
        return(-1);
    }
}

The idea here is that the server start method is a non blocking and
the server puts data into the dataQueue.  (And then notifies its parent
thread that new data has arrived.. how I'm not sure yet.)

My question are:

I could have the start method do a fork/exec but is there a preferred
method such as a thread for Cocoa development?  (Pointers please).

If a thread is spawned and places data into the queue then is there
any issues regarding a different thread accessing the queue?

Inter thread communications... Is there a Cocoa way?

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 >spawing a server... (From: "Brian O'Brien" <email@hidden>)

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