diff options
Diffstat (limited to 'src/python/grpcio/tests/unit/_cython/test_utilities.py')
-rw-r--r-- | src/python/grpcio/tests/unit/_cython/test_utilities.py | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/src/python/grpcio/tests/unit/_cython/test_utilities.py b/src/python/grpcio/tests/unit/_cython/test_utilities.py index 6a09739643..6280ce74c4 100644 --- a/src/python/grpcio/tests/unit/_cython/test_utilities.py +++ b/src/python/grpcio/tests/unit/_cython/test_utilities.py @@ -32,15 +32,35 @@ import threading from grpc._cython import cygrpc -class CompletionQueuePollFuture: +class SimpleFuture(object): + """A simple future mechanism.""" - def __init__(self, completion_queue, deadline): - def poller_function(): - self._event_result = completion_queue.poll(deadline) - self._event_result = None - self._thread = threading.Thread(target=poller_function) + def __init__(self, function, *args, **kwargs): + def wrapped_function(): + try: + self._result = function(*args, **kwargs) + except Exception as error: + self._error = error + self._result = None + self._error = None + self._thread = threading.Thread(target=wrapped_function) self._thread.start() def result(self): + """The resulting value of this future. + + Re-raises any exceptions. + """ self._thread.join() - return self._event_result + if self._error: + # TODO(atash): re-raise exceptions in a way that preserves tracebacks + raise self._error + return self._result + + +class CompletionQueuePollFuture(SimpleFuture): + + def __init__(self, completion_queue, deadline): + super(CompletionQueuePollFuture, self).__init__( + lambda: completion_queue.poll(deadline)) + |