Commit 87e6c33a authored by Sofia Papagiannaki's avatar Sofia Papagiannaki
Browse files

pithos: Acquire locks in alphabetical path order in copy object

parent 6d093712
......@@ -1064,8 +1064,18 @@ class ModularBackend(BaseBackend):
dest_meta = dest_meta or {}
dest_version_ids = []
self._can_read(user, src_account, src_container, src_name)
path, node = self._lookup_object(src_account, src_container, src_name,
src_container_path = '/'.join((src_account, src_container))
dest_container_path = '/'.join((dest_account, dest_container))
# Lock container paths in alphabetical order
if src_container_path < dest_container_path:
self._lookup_container(src_account, src_container)
self._lookup_container(dest_account, dest_container)
self._lookup_container(dest_account, dest_container)
self._lookup_container(src_account, src_container)
path, node = self._lookup_object(src_account, src_container, src_name)
# TODO: Will do another fetch of the properties in duplicate version...
props = self._get_version(
node, src_version) # Check to see if source exists.
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