1. 21 Dec, 2004 5 commits
    • Tim Peters's avatar
      Merge rev 28680 from 3.3 branch. · dc518849
      Tim Peters authored
      More cleanup, and a new problem.  Notable:
      
      Object.serialize_header():  Stopped stuffing the version string into this
      notion of "a header".  Couldn't see any reason for it, and it was
      surprising.
      
      ClientCache.invalidate():  Added some asserts to clarify intended
      preconditions.  Alas, my guess that it was intended that the passed-in
      tid always be greater than the current tid turned out to trigger
      errors.  This gets complicated, and hasn't been resolved yet.  The
      problem is that the passed-in tid can be (in fact, always is) None
      during cache verification.  The code here *really* doesn't seem to
      be expecting that, and the on-disk cache file is clearly left in a
      wrong state (if we repopulated the cache from the disk file, the
      object would not look invalidated any more, it would look current).
      Dumped in a giant stack trace so I don't forget this; sent email to
      Jeremy asking if he recalls what the real intent was.
      dc518849
    • Tim Peters's avatar
      Merge rev 28673 from 3.3 branch. · 60e508aa
      Tim Peters authored
      More cleanup.  Notable:
      
      - Object.fromFile():  renamed `header_only` arg to `skip_data`.
        Skipping the data is what it does, while there are at least 3
        distinct notions of what "a header" means in this module.
        Object has two notions of "header" all by itself (& I'm still
        not sure why Object.serialize_header() considers the version
        string to be part of "the header").
      
      - FileCache.__init__():  log a warning if reuse=True but the
        given file path doesn't exist.  The code ignores `reuse` then
        (before, and now).  Not sure that's the best thing to do.
      60e508aa
    • Tim Peters's avatar
      Merged rev 28671 from 3.3 branch. · 6f12261d
      Tim Peters authored
      More cleanup.  Notable:
      
      - Moved the logger object to module scope.  There's virtually
        no logging of any kind done here, and I suspect that's partly
        because the logging object was clumsy to get at.
      
      - Figured out what the code actually does when the cache size
        asked for doesn't match the actual size of a pre-existing
        cache file.  It apparently wanted to ignore the requested
        size then.  It probably shouldn't, but leaving that for later.
        Still, it left its own idea of the file size out of synch
        with the actual file size, and that was a bug.  For now,
        logged a warning when this happens, and changed the code to
        respect the actual file size.
      6f12261d
    • Tim Peters's avatar
      Merged rev 28664 from 3.3 branch. · 10324308
      Tim Peters authored
      More cleanup.  Notable:
      
      ClientCache:  Removed the .tid attribute.  It was never updated; the
      contained FileCache instance actually keeps track of the last tid.
      This had the happy side effect of fixing bugs in testSerialization:
      it was accessing .tid directly, and so was _always_ comparing None to
      None.  Changing the test to use .getLastTid() instead means it's now
      testing what it always intended to test.
      
      FileCache:  Removed some unused private attributes for tracking
      internal statistics.
      10324308
    • Tim Peters's avatar
      Merge rev 28660 from 3.3 branch. · d3a1bc6a
      Tim Peters authored
      More code and comment cleanups.  Notable changes:
      
      FileCache:  removed the currentsize attribute.  It was initialized
      to 0 but never updated.  Some tests referenced it, but since it was
      always 0 those tests weren't getting any good from it.  Don't
      recall (or never knew) what its intended purpose may have been.
      
      FileCache.remove():  Repaired major bug.  This mistakenly stored
      the "this disk block is free now" status byte into the start of
      the serialized Object record's end_tid field (incorrect seek
      offset).  The in-memory structures were correct then, but got out
      of synch with the disk file; the latter then still claimed to have
      info for a "live" object revision, but that revision was actually
      dead, and the info on disk had a corrupt end_tid value.
      d3a1bc6a
  2. 20 Dec, 2004 1 commit
  3. 10 Dec, 2004 2 commits
  4. 09 Dec, 2004 4 commits
  5. 16 Nov, 2004 1 commit
    • Tim Peters's avatar
      Merge rev 28466 from 3.3 branch. · cefbb8a8
      Tim Peters authored
      Forward port from ZODB 3.2.
      
      Collector 1581:  fspack can blow up when .fs is corrupted
      
      Repaired three places where fspack referenced an undefined global while
      *trying* to raise CorruptedError.  Added new checkCorruptionInPack()
      test to verify the correct exception gets raised.
      
      cefbb8a8
  6. 11 Nov, 2004 6 commits
  7. 05 Nov, 2004 3 commits
  8. 04 Nov, 2004 1 commit
    • Tim Peters's avatar
      Brrr. · 1e730a8c
      Tim Peters authored
      Weak sets have have pragmatic gotchas, explained in the comments
      before the new WeakSet.as_weakref_list() method.  In essence, we
      just took all the weak sets of connection objects and changed
      everything so that a list of live objects is never materialized
      anymore.  Also added new map()-like methods so that clients don't
      usually need to be aware of the weakrefs under the covers.
      1e730a8c
  9. 02 Nov, 2004 4 commits
  10. 26 Oct, 2004 2 commits
  11. 18 Oct, 2004 1 commit
  12. 15 Oct, 2004 2 commits
  13. 14 Oct, 2004 2 commits
  14. 12 Oct, 2004 4 commits
  15. 08 Oct, 2004 2 commits