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ReadDirectoryChangesW question

Discussion in 'Win32' started by Elysia, Aug 31, 2010.

  1. Elysia

    Elysia New Member

    Aug 31, 2010
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    I thought I'd try to see if anyone is experienced with monitoring directories here...

    So I have a basic system set up. ReadDirectoryChangesW to read directory changes.
    The only problem I'm facing here is that it returns directly after a new file is added to a directory. If N files are moved into a directory, it will pretty much return N times.
    This is problematic for me since I set off processing whatever files are dumped in asynchronously. And preferably, I want a total count of the files I'm processing, before I start processing (progress stuff).

    So basically it is:
    - Read directory change.
    - Store file added.
    - Wake processing thread.
    - Read new directory chance.
    - Store file added.
    - And so on.

    Ideally, I would like it to be just
    - Read directory change.
    - Store files added.
    - Wake processing thread.

    The only way I can think of doing this is by "peeking" to see if there are more changes waiting to be consumed by a call to ReadDirectoryChangesW since the function blocks until there's a new event.
    Any ideas?

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