Re: [Pythonmac-SIG] question about garbage collection with NSApplication.run()

[Ronald Oussoren]

On 31 May, 2009, at 20:34, Bill Janssen wrote:

I'm writing a Python program that has a main that looks like this:

       application = NSApplication.sharedApplication()

       # set up handler for network change notification

       CFRunLoopAddSource(
           NSRunLoop.currentRunLoop().getCFRunLoop(),
           SCDynamicStoreCreateRunLoopSource(None, DYNSTORE, 0),
           kCFRunLoopCommonModes
           )

       # add a timer for application scan events



       application.run()


that this is single-threaded, and that NSApplication.run will handle
periodic drainage of the default main thread release pool.

SCDynamicStoreSetNotificationKeys(DYNSTORE, None, [NETWORK_KEY,]) # Get a CFRunLoopSource for our store session and add it to the application's runloop: timer = NSTimer .scheduledTimerWithTimeInterval_target_selector_userInfo_repeats_( periodicity, scanner, objc.selector(scanner.scan, signature="v@:"), None, True) # using an NSRunLoop avoids Activity Monitor complaining about "not responding" Do I need to do anything about NSAutoreleasePools? My understanding is

Ronald

That's right. NSApplication.run manages the the pool for you. You only have to worry about autorelease pools when you create new threads running Cocoa code, and when you a long time without looping through the eventloop.

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