Added locking to Pyblosxom

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I just added locking to Pyblosxom to allow separate Pyblosxom requests to synchronize on centralized data. In my case, the data is a file of how many views each of my blog entries has gotten. It seems to be pretty functional. It's something I had coded in my viewcounts plugin, but I've moved the code (and added to it) into the tools module so we can all use the same base.

An example of usage is this:

   from Pyblosxom import tools

   LOCKNAME = "viewcounts.dat"

   ...
      lockret = tools.get_lock(request, LOCKNAME)
      if lockret:
         # yay -- we have the lcok
      else:
         # foo -- we don't have the lock


   ...
      if tools.has_lock(request, LOCKNAME)
         # yay -- we have the lock
      else:
         # foo -- we don't have the lock

   ...

   tools.return_lock(request, LOCKNAME)

The code is in CVS. It'll go into the next version. Also, I added a unittest module to the code base.

Want to comment? Send an email to willkg at bluesock dot org. Include the url for the blog entry in your comment so I have some context as to what you're talking about.