[Twisted-Python] Looking for a simple file event driven loop using Twisted

[Ken Kinder]

It seems to me you probably will either check periodically in the 
reactor, like this:

    def checkFile():
        x = os.stat(file)
        ...
        reactor.callLater(.5, checkFile)

    reactor.callWhenRunning(checkFile)

Or just start another thread like this:

    def wakeUp():
        (action to take when file changes)

    def checker():
        while 1:
            (code that waits for file to change)
            reactor.callFromThread(wakeUp)

    reactor.callInThread(checker)

-Ken

steven howe wrote:

>Hello,
>I'm looking for some example code I can use to build an app from. I
>need to 'wait' or sleep for new data in a file. Then wake and process
>the data.
>
>The file is a regular file, not a pipe. It is the output of a existing
>program (i.e., not mine to modify). Needless to say, the API for hugh.
>I'm need some help finding the right tools.
>
>Thanks, 
>
>Steven Howe
>
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