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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2011-04-05 14:47:26 UTC
  • mfrom: (5752.2.11 2.4-windows-lfstat)
  • Revision ID: pqm@pqm.ubuntu.com-20110405144726-zi3lj2kwvjml4kx5
(jameinel) Add osutils.lstat/fstat so that even on Windows lstat(fname) ==
 fstat(open(fname).fileno()) (John A Meinel)

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Lines of Context:
bzrlib/chk_map.py
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lazy_import.lazy_import(globals(), """
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from bzrlib import (
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    errors,
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    versionedfile,
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    )
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""")
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from bzrlib import (
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_INTERESTING_NEW_SIZE = 50
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# If a ChildNode shrinks by more than this amount, we check for a remap
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_INTERESTING_SHRINKAGE_LIMIT = 20
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# If we delete more than this many nodes applying a delta, we check for a remap
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_INTERESTING_DELETES_LIMIT = 5
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def _search_key_plain(key):
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            into the map; if old_key is not None, then the old mapping
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            of old_key is removed.
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        """
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        delete_count = 0
 
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        has_deletes = False
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        # Check preconditions first.
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        as_st = StaticTuple.from_sequence
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        new_items = set([as_st(key) for (old, key, value) in delta
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        for old, new, value in delta:
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            if old is not None and old != new:
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                self.unmap(old, check_remap=False)
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                delete_count += 1
 
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                has_deletes = True
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        for old, new, value in delta:
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            if new is not None:
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                self.map(new, value)
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        if delete_count > _INTERESTING_DELETES_LIMIT:
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            trace.mutter("checking remap as %d deletions", delete_count)
 
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        if has_deletes:
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            self._check_remap()
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        return self._save()
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        """Check if nodes can be collapsed."""
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        self._ensure_root()
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        if type(self._root_node) is InternalNode:
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            self._root_node._check_remap(self._store)
 
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            self._root_node = self._root_node._check_remap(self._store)
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    def _save(self):
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        """Save the map completely.
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        return self._search_prefix
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    def unmap(self, store, key, check_remap=True):
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        """Remove key from this node and it's children."""
 
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        """Remove key from this node and its children."""
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        if not len(self._items):
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            raise AssertionError("can't unmap in an empty InternalNode.")
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        children = [node for node, _
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try:
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    from bzrlib._chk_map_pyx import (
 
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        _bytes_to_text_key,
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        _search_key_16,
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        _search_key_255,
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        _deserialise_leaf_node,
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except ImportError, e:
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    osutils.failed_to_load_extension(e)
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    from bzrlib._chk_map_py import (
 
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        _bytes_to_text_key,
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        _search_key_16,
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        _search_key_255,
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        _deserialise_leaf_node,