openstack
/
dragonflow
Code Issues Proposed changes

Merge "lockedobjects_db: Extract nested lock detection to a method"

This commit is contained in:
Zuul 2018-04-29 08:37:23 +00:00 committed by Gerrit Code Review
parent 2659025e9b d083aa6211
commit 7bee4bdaa0
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
dragonflow/db/neutron/lockedobjects_db.py
View File

@ -63,6 +63,13 @@ class wrap_db_lock(object):
super(wrap_db_lock, self).__init__()
self.type = type
def is_within_wrapper(self):
# magic to prevent from nested lock
for frame in inspect.stack()[1:]:
if frame[3] == 'wrap_db_lock':
return True
return False
def __call__(self, f):
@six.wraps(f)
def wrap_db_lock(*args, **kwargs):
@ -70,12 +77,7 @@ class wrap_db_lock(object):
result = None
lock_id = _get_lock_id_by_resource_type(self.type, *args, **kwargs)
# magic to prevent from nested lock
within_wrapper = False
for frame in inspect.stack()[1:]:
if frame[3] == 'wrap_db_lock':
within_wrapper = True
break
within_wrapper = self.is_within_wrapper()
if not within_wrapper:
# test and create the lock if necessary