def lock(self, lockname, data):
tracing.trace('attempting lockname=%s', lockname)
try:
self.write_file(lockname, data)
except OSError, e:
if e.errno == errno.EEXIST:
raise obnamlib.LockFail(lock_name=lockname,
reason='already exists')
else:
raise # pragma: no cover
def lock(self, lockname):
tracing.trace('attempting lockname=%s', lockname)
try:
tempname = self._create_tempfile(lockname)
self._rename_temp_to_real(tempname, lockname)
except OSError, e:
if e.errno == errno.EEXIST:
raise obnamlib.LockFail(lock_name=lockname,
reason='already exists')
else:
raise # pragma: no cover
def _lock_one(self, dirname):
started = self._time()
while True:
lock_name = self._lockname(dirname)
try:
self._fs.lock(lock_name, self.data)
except obnamlib.LockFail:
if self._time() - started >= self.timeout:
raise obnamlib.LockFail(lock_name=lock_name,
reason='timeout')
else:
return
self._sleep()
def lock(self, lockname):
try:
self.write_file(lockname, '')
except OSError, e:
raise obnamlib.LockFail(lock_name=lockname, reason=str(e))