def acquire(self):
try:
self._lock.acquire()
self._acquired = True
except (portalocker.AlreadyLocked, portalocker.LockException) as e:
raise TimeoutError("Could not acquire lock '{filename}'.".format(
filename=self.filename)) from e
def acquire(self):
start = time.time()
while True:
try:
self._fd = os.open(self.filename,
os.O_CREAT | os.O_RDWR | os.O_EXCL)
return
except OSError as err:
if err.errno not in (errno.EEXIST, errno.EACCES):
raise
elif time.time() - start >= self.timeout:
raise TimeoutError(
"Could not acquire lock '{filename}'.".format(
filename=self.filename))
else:
time.sleep(self.poll)