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  • Committer: Robert Collins
  • Date: 2010-01-29 15:18:58 UTC
  • mto: (4797.2.8 2.1)
  • mto: This revision was merged to the branch mainline in revision 4998.
  • Revision ID: robertc@robertcollins.net-20100129151858-0c1m88b013wluaxn
https://launchpad.net/bugs/514090
Introduce a threading.local to isolate the chk_map page cache from other threads.

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bzrlib/tests/test_chk_map.py
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        # Unmapping the new node will check the existing nodes to see if they
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        # would fit.
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        # Clear the page cache so we ensure we have to read all the children
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        chk_map._page_cache.clear()
 
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        chk_map.clear_cache()
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        chkmap.unmap(('aad',))
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        self.assertIsInstance(chkmap._root_node._items['aaa'], LeafNode)
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        self.assertIsInstance(chkmap._root_node._items['aab'], LeafNode)
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        # Now clear the page cache, and only include 2 of the children in the
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        # cache
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        aab_key = chkmap._root_node._items['aab']
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        aab_bytes = chk_map._page_cache[aab_key]
 
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        aab_bytes = chk_map._get_cache()[aab_key]
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        aac_key = chkmap._root_node._items['aac']
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        aac_bytes = chk_map._page_cache[aac_key]
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        chk_map._page_cache.clear()
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        chk_map._page_cache[aab_key] = aab_bytes
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        chk_map._page_cache[aac_key] = aac_bytes
 
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        aac_bytes = chk_map._get_cache()[aac_key]
 
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        chk_map.clear_cache()
 
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        chk_map._get_cache()[aab_key] = aab_bytes
 
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        chk_map._get_cache()[aac_key] = aac_bytes
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        # Unmapping the new node will check the nodes from the page cache
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        # first, and not have to read in 'aaa'