def test_40_confirm_easy(self):
"""Confirm a lock that's already held"""
t = self.get_transport()
lf1 = LockDir(t, 'test_lock')
lf1.create()
lf1.attempt_lock()
lf1.confirm()
def test_40_confirm_easy(self):
"""Confirm a lock that's already held"""
t = self.get_transport()
lf1 = LockDir(t, 'test_lock')
lf1.create()
lf1.attempt_lock()
lf1.confirm()
def test_auto_break_stale_lock_configured_off(self):
"""Automatic breaking can be turned off"""
l1 = LockDir(self.get_transport(), 'a',
extra_holder_info={'pid': '12312313'})
token_1 = l1.attempt_lock()
self.addCleanup(l1.unlock)
l2 = LockDir(self.get_transport(), 'a')
# This fails now, because dead lock breaking is off by default.
self.assertRaises(LockContention,
l2.attempt_lock)
# and it's in fact not broken
l1.confirm()
def test_auto_break_stale_lock_configured_off(self):
"""Automatic breaking can be turned off"""
l1 = LockDir(self.get_transport(), 'a',
extra_holder_info={'pid': '12312313'})
token_1 = l1.attempt_lock()
self.addCleanup(l1.unlock)
l2 = LockDir(self.get_transport(), 'a')
# This fails now, because dead lock breaking is off by default.
self.assertRaises(LockContention,
l2.attempt_lock)
# and it's in fact not broken
l1.confirm()
def test_44_break_already_released(self):
"""Lock break races with regular release"""
t = self.get_transport()
lf1 = LockDir(t, 'test_lock')
lf1.create()
lf1.attempt_lock()
# someone else sees it's still locked
lf2 = LockDir(t, 'test_lock')
holder_info = lf2.peek()
# in the interim the lock is released
lf1.unlock()
# break should succeed
lf2.force_break(holder_info)
# now we should be able to take it
lf2.attempt_lock()
lf2.confirm()
def test_43_break(self):
"""Break a lock whose caller has forgotten it"""
t = self.get_transport()
lf1 = LockDir(t, 'test_lock')
lf1.create()
lf1.attempt_lock()
# we incorrectly discard the lock object without unlocking it
del lf1
# someone else sees it's still locked
lf2 = LockDir(t, 'test_lock')
holder_info = lf2.peek()
self.assertTrue(holder_info)
lf2.force_break(holder_info)
# now we should be able to take it
lf2.attempt_lock()
lf2.confirm()
def test_44_break_already_released(self):
"""Lock break races with regular release"""
t = self.get_transport()
lf1 = LockDir(t, 'test_lock')
lf1.create()
lf1.attempt_lock()
# someone else sees it's still locked
lf2 = LockDir(t, 'test_lock')
holder_info = lf2.peek()
# in the interim the lock is released
lf1.unlock()
# break should succeed
lf2.force_break(holder_info)
# now we should be able to take it
lf2.attempt_lock()
lf2.confirm()
def test_43_break(self):
"""Break a lock whose caller has forgotten it"""
t = self.get_transport()
lf1 = LockDir(t, 'test_lock')
lf1.create()
lf1.attempt_lock()
# we incorrectly discard the lock object without unlocking it
del lf1
# someone else sees it's still locked
lf2 = LockDir(t, 'test_lock')
holder_info = lf2.peek()
self.assertTrue(holder_info)
lf2.force_break(holder_info)
# now we should be able to take it
lf2.attempt_lock()
lf2.confirm()