def traceback(self, timeout=None):
until = None if timeout is None else time.time() + timeout
with self._state.condition:
while True:
if self._state.code is None:
_wait_once_until(self._state.condition, until)
elif self._state.code is grpc.StatusCode.OK:
return None
elif self._state.cancelled:
raise grpc.FutureCancelledError()
else:
try:
raise self
except grpc.RpcError:
return sys.exc_info()[2]
def _block(self, timeout):
until = None if timeout is None else time.time() + timeout
with self._condition:
while True:
if self._cancelled:
raise grpc.FutureCancelledError()
elif self._matured:
return
else:
if until is None:
self._condition.wait()
else:
remaining = until - time.time()
if remaining < 0:
raise grpc.FutureTimeoutError()
else:
self._condition.wait(timeout=remaining)
def exception(self, timeout=None):
"""Return the exception raised by the computation.
See grpc.Future.exception for the full API contract.
"""
with self._state.condition:
timed_out = _common.wait(
self._state.condition.wait, self._is_complete, timeout=timeout)
if timed_out:
raise grpc.FutureTimeoutError()
else:
if self._state.code is grpc.StatusCode.OK:
return None
elif self._state.cancelled:
raise grpc.FutureCancelledError()
else:
return self
def result(self, timeout=None):
"""Returns the result of the computation or raises its exception.
See grpc.Future.result for the full API contract.
"""
with self._state.condition:
timed_out = _common.wait(
self._state.condition.wait, self._is_complete, timeout=timeout)
if timed_out:
raise grpc.FutureTimeoutError()
else:
if self._state.code is grpc.StatusCode.OK:
return self._state.response
elif self._state.cancelled:
raise grpc.FutureCancelledError()
else:
raise self
def traceback(self, timeout=None):
"""Access the traceback of the exception raised by the computation.
See grpc.future.traceback for the full API contract.
"""
with self._state.condition:
timed_out = _common.wait(
self._state.condition.wait, self._is_complete, timeout=timeout)
if timed_out:
raise grpc.FutureTimeoutError()
else:
if self._state.code is grpc.StatusCode.OK:
return None
elif self._state.cancelled:
raise grpc.FutureCancelledError()
else:
try:
raise self
except grpc.RpcError:
return sys.exc_info()[2]
def test_exception_FutureCancelledError():
error = grpc.FutureCancelledError()
future = tasklets.Future()
future.exception = mock.Mock(side_effect=error)
call = _remote.RemoteCall(future, "testing")
assert isinstance(call.exception(), exceptions.Cancelled)
