def unary_request():
with state.condition:
if state.client is _CANCELLED or state.statused:
return None
else:
start_server_batch_result = rpc_event.operation_call.start_server_batch(
cygrpc.Operations(
(cygrpc.operation_receive_message(_EMPTY_FLAGS), )),
_receive_message(state, rpc_event.operation_call,
request_deserializer))
state.due.add(_RECEIVE_MESSAGE_TOKEN)
while True:
state.condition.wait()
if state.request is None:
if state.client is _CLOSED:
details = '"{}" requires exactly one request message.'.format(
rpc_event.request_call_details.method)
_abort(state, rpc_event.operation_call,
cygrpc.StatusCode.unimplemented,
_common.encode(details))
return None
elif state.client is _CANCELLED:
return None
else:
request = state.request
state.request = None
return request
def unary_request():
with state.condition:
if state.client is _CANCELLED or state.statused:
return None
else:
start_batch_result = rpc_event.operation_call.start_batch(
cygrpc.Operations(
(cygrpc.operation_receive_message(_EMPTY_FLAGS), )),
_receive_message(state, rpc_event.operation_call,
request_deserializer))
state.due.add(_RECEIVE_MESSAGE_TOKEN)
while True:
state.condition.wait()
if state.request is None:
if state.client is _CLOSED:
details = b'"{}" requires exactly one request message.'.format(
rpc_event.request_call_details.method)
# TODO(5992#issuecomment-220761992): really, what status code?
_abort(state, rpc_event.operation_call,
cygrpc.StatusCode.unavailable, details)
return None
elif state.client is _CANCELLED:
return None
else:
request = state.request
state.request = None
return request
def _status(rpc_event, state, serialized_response):
with state.condition:
if state.client is not _CANCELLED:
trailing_metadata = _common.to_cygrpc_metadata(
state.trailing_metadata)
code = _completion_code(state)
details = _details(state)
operations = [
cygrpc.operation_send_status_from_server(
trailing_metadata, code, details, _EMPTY_FLAGS),
]
if state.initial_metadata_allowed:
operations.append(
cygrpc.operation_send_initial_metadata(
_common.EMPTY_METADATA, _EMPTY_FLAGS))
if serialized_response is not None:
operations.append(
cygrpc.operation_send_message(serialized_response,
_EMPTY_FLAGS))
rpc_event.operation_call.start_server_batch(
cygrpc.Operations(operations),
_send_status_from_server(state,
_SEND_STATUS_FROM_SERVER_TOKEN))
state.statused = True
state.due.add(_SEND_STATUS_FROM_SERVER_TOKEN)
def _abort(state, call, code, details):
if state.client is not _CANCELLED:
effective_code = _abortion_code(state, code)
effective_details = details if state.details is None else state.details
if state.initial_metadata_allowed:
operations = (
cygrpc.operation_send_initial_metadata(
_EMPTY_METADATA, _EMPTY_FLAGS),
cygrpc.operation_send_status_from_server(
_common.cygrpc_metadata(state.trailing_metadata), effective_code,
effective_details, _EMPTY_FLAGS),
)
token = _SEND_INITIAL_METADATA_AND_SEND_STATUS_FROM_SERVER_TOKEN
else:
operations = (
cygrpc.operation_send_status_from_server(
_common.cygrpc_metadata(state.trailing_metadata), effective_code,
effective_details, _EMPTY_FLAGS),
)
token = _SEND_STATUS_FROM_SERVER_TOKEN
call.start_server_batch(
cygrpc.Operations(operations),
_send_status_from_server(state, token))
state.statused = True
state.due.add(token)
def _next(self):
with self._state.condition:
if self._state.code is None:
event_handler = _event_handler(self._state, self._call,
self._response_deserializer)
self._call.start_client_batch(
cygrpc.Operations(
(cygrpc.operation_receive_message(_EMPTY_FLAGS),)),
event_handler)
self._state.due.add(cygrpc.OperationType.receive_message)
elif self._state.code is grpc.StatusCode.OK:
raise StopIteration()
else:
raise self
while True:
self._state.condition.wait()
if self._state.response is not None:
response = self._state.response
self._state.response = None
return response
elif cygrpc.OperationType.receive_message not in self._state.due:
if self._state.code is grpc.StatusCode.OK:
raise StopIteration()
elif self._state.code is not None:
raise self
def start_batch(self, ops, tag):
translated_ops = []
for op in ops:
if op.type == _types.OpType.SEND_INITIAL_METADATA:
translated_op = cygrpc.operation_send_initial_metadata(
cygrpc.Metadata(
cygrpc.Metadatum(key, value)
for key, value in op.initial_metadata))
elif op.type == _types.OpType.SEND_MESSAGE:
translated_op = cygrpc.operation_send_message(op.message)
elif op.type == _types.OpType.SEND_CLOSE_FROM_CLIENT:
translated_op = cygrpc.operation_send_close_from_client()
elif op.type == _types.OpType.SEND_STATUS_FROM_SERVER:
translated_op = cygrpc.operation_send_status_from_server(
cygrpc.Metadata(
cygrpc.Metadatum(key, value)
for key, value in op.trailing_metadata),
op.status.code,
op.status.details)
elif op.type == _types.OpType.RECV_INITIAL_METADATA:
translated_op = cygrpc.operation_receive_initial_metadata()
elif op.type == _types.OpType.RECV_MESSAGE:
translated_op = cygrpc.operation_receive_message()
elif op.type == _types.OpType.RECV_STATUS_ON_CLIENT:
translated_op = cygrpc.operation_receive_status_on_client()
elif op.type == _types.OpType.RECV_CLOSE_ON_SERVER:
translated_op = cygrpc.operation_receive_close_on_server()
else:
raise ValueError('unexpected operation type {}'.format(op.type))
translated_ops.append(translated_op)
return self.call.start_batch(cygrpc.Operations(translated_ops), tag)
def _send_response(rpc_event, state, serialized_response):
with state.condition:
if state.client is _CANCELLED or state.statused:
return False
else:
if state.initial_metadata_allowed:
operations = (
cygrpc.operation_send_initial_metadata(
_EMPTY_METADATA, _EMPTY_FLAGS),
cygrpc.operation_send_message(serialized_response,
_EMPTY_FLAGS),
)
state.initial_metadata_allowed = False
token = _SEND_INITIAL_METADATA_AND_SEND_MESSAGE_TOKEN
else:
operations = (cygrpc.operation_send_message(
serialized_response, _EMPTY_FLAGS), )
token = _SEND_MESSAGE_TOKEN
rpc_event.operation_call.start_server_batch(
cygrpc.Operations(operations), _send_message(state, token))
state.due.add(token)
while True:
state.condition.wait()
if token not in state.due:
return state.client is not _CANCELLED and not state.statused
def testOperationsIteration(self):
operations = cygrpc.Operations([cygrpc.operation_send_message('asdf')])
iterator = iter(operations)
operation = next(iterator)
self.assertIsInstance(operation, cygrpc.Operation)
# `Operation`s are write-only structures; can't directly debug anything out
# of them. Just check that we stop iterating.
with self.assertRaises(StopIteration):
next(iterator)
def consume_request_iterator():
while True:
try:
request = next(request_iterator)
except StopIteration:
break
except Exception as e:
logging.exception("Exception iterating requests!")
call.cancel()
_abort(state, grpc.StatusCode.UNKNOWN, "Exception iterating requests!")
return
serialized_request = _common.serialize(request, request_serializer)
with state.condition:
if state.code is None and not state.cancelled:
if serialized_request is None:
call.cancel()
details = 'Exception serializing request!'
_abort(state, grpc.StatusCode.INTERNAL, details)
return
else:
operations = (
cygrpc.operation_send_message(
serialized_request, _EMPTY_FLAGS),
)
call.start_client_batch(cygrpc.Operations(operations),
event_handler)
state.due.add(cygrpc.OperationType.send_message)
while True:
state.condition.wait()
if state.code is None:
if cygrpc.OperationType.send_message not in state.due:
break
else:
return
else:
return
with state.condition:
if state.code is None:
operations = (
cygrpc.operation_send_close_from_client(_EMPTY_FLAGS),
)
call.start_client_batch(cygrpc.Operations(operations), event_handler)
state.due.add(cygrpc.OperationType.send_close_from_client)
def _raise_or_start_receive_message(self):
if self._state.client is _CANCELLED:
_raise_rpc_error(self._state)
elif self._state.client is _CLOSED or self._state.statused:
raise StopIteration()
else:
self._call.start_server_batch(
cygrpc.Operations((cygrpc.operation_receive_message(_EMPTY_FLAGS),)),
_receive_message(self._state, self._call, self._request_deserializer))
self._state.due.add(_RECEIVE_MESSAGE_TOKEN)
def performer():
tag = object()
try:
call_result = call.start_batch(cygrpc.Operations(operations), tag)
self.assertEqual(cygrpc.CallError.ok, call_result)
event = queue.poll(deadline)
self.assertEqual(cygrpc.CompletionType.operation_complete, event.type)
self.assertTrue(event.success)
self.assertIs(tag, event.tag)
except Exception as error:
raise Exception("Error in '{}': {}".format(description, error.message))
return event
def future(self, request, timeout=None, metadata=None, credentials=None):
state, operations, deadline, deadline_timespec, rendezvous = self._prepare(
request, timeout, metadata)
if rendezvous:
return rendezvous
else:
call = self._create_managed_call(
None, 0, self._method, None, deadline_timespec)
if credentials is not None:
call.set_credentials(credentials._credentials)
event_handler = _event_handler(state, call, self._response_deserializer)
with state.condition:
call.start_batch(cygrpc.Operations(operations), event_handler)
return _Rendezvous(state, call, self._response_deserializer, deadline)
def _blocking(self, request, timeout, metadata, credentials):
state, operations, deadline, deadline_timespec, rendezvous = self._prepare(
request, timeout, metadata)
if rendezvous:
raise rendezvous
else:
completion_queue = cygrpc.CompletionQueue()
call = self._channel.create_call(
None, 0, completion_queue, self._method, None, deadline_timespec)
if credentials is not None:
call.set_credentials(credentials._credentials)
call.start_batch(cygrpc.Operations(operations), None)
_handle_event(completion_queue.poll(), state, self._response_deserializer)
return state, deadline
def __call__(
self, request_iterator, timeout=None, metadata=None, credentials=None):
deadline, deadline_timespec = _deadline(timeout)
state = _RPCState(_STREAM_STREAM_INITIAL_DUE, None, None, None, None)
call = self._create_managed_call(
None, 0, self._method, None, deadline_timespec)
if credentials is not None:
call.set_credentials(credentials._credentials)
event_handler = _event_handler(state, call, self._response_deserializer)
with state.condition:
call.start_batch(
cygrpc.Operations(
(cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),)),
event_handler)
operations = (
cygrpc.operation_send_initial_metadata(
_common.metadata(metadata), _EMPTY_FLAGS),
cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS),
)
call.start_batch(cygrpc.Operations(operations), event_handler)
_consume_request_iterator(
request_iterator, state, call, self._request_serializer)
return _Rendezvous(state, call, self._response_deserializer, deadline)
def __call__(self, request, timeout=None, metadata=None, credentials=None):
deadline, deadline_timespec, serialized_request, rendezvous = (
_start_unary_request(request, timeout, self._request_serializer))
if serialized_request is None:
raise rendezvous
else:
state = _RPCState(_UNARY_STREAM_INITIAL_DUE, None, None, None,
None)
channel = self._channel.get_channel()
call, drive_call = channel.managed_call(None, 0, self._method,
None, deadline_timespec)
if credentials is not None:
call.set_credentials(credentials._credentials)
event_handler = _event_handler(state, call,
self._response_deserializer)
with state.condition:
call.start_client_batch(
cygrpc.Operations(
(cygrpc.operation_receive_initial_metadata(
_EMPTY_FLAGS), )), event_handler)
operations = (
cygrpc.operation_send_initial_metadata(
_common.to_cygrpc_metadata(metadata), _EMPTY_FLAGS),
cygrpc.operation_send_message(serialized_request,
_EMPTY_FLAGS),
cygrpc.operation_send_close_from_client(_EMPTY_FLAGS),
cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS),
)
call_error = call.start_client_batch(
cygrpc.Operations(operations), event_handler)
if call_error != cygrpc.CallError.ok:
_call_error_set_RPCstate(state, call_error, metadata)
return _Rendezvous(state, None, None, deadline)
drive_call()
return _Rendezvous(state, call, self._response_deserializer,
deadline)
def send_initial_metadata(self, initial_metadata):
with self._state.condition:
if self._state.client is _CANCELLED:
_raise_rpc_error(self._state)
else:
if self._state.initial_metadata_allowed:
operation = cygrpc.operation_send_initial_metadata(
_common.metadata(initial_metadata), _EMPTY_FLAGS)
self._rpc_event.operation_call.start_batch(
cygrpc.Operations((operation, )),
_send_initial_metadata(self._state))
self._state.initial_metadata_allowed = False
self._state.due.add(_SEND_INITIAL_METADATA_TOKEN)
else:
raise ValueError('Initial metadata no longer allowed!')
def _handle_with_method_handler(rpc_event, method_handler, thread_pool):
state = _RPCState()
with state.condition:
rpc_event.operation_call.start_server_batch(
cygrpc.Operations(
(cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS),)),
_receive_close_on_server(state))
state.due.add(_RECEIVE_CLOSE_ON_SERVER_TOKEN)
if method_handler.request_streaming:
if method_handler.response_streaming:
_handle_stream_stream(rpc_event, state, method_handler, thread_pool)
else:
_handle_stream_unary(rpc_event, state, method_handler, thread_pool)
else:
if method_handler.response_streaming:
_handle_unary_stream(rpc_event, state, method_handler, thread_pool)
else:
_handle_unary_unary(rpc_event, state, method_handler, thread_pool)
return state
def future(self, request, timeout=None, metadata=None, credentials=None):
state, operations, deadline, deadline_timespec, rendezvous = self._prepare(
request, timeout, metadata)
if rendezvous:
return rendezvous
else:
channel = self._channel.get_channel()
call, drive_call = channel.managed_call(None, 0, self._method,
None, deadline_timespec)
if credentials is not None:
call.set_credentials(credentials._credentials)
event_handler = _event_handler(state, call,
self._response_deserializer)
with state.condition:
call_error = call.start_client_batch(
cygrpc.Operations(operations), event_handler)
if call_error != cygrpc.CallError.ok:
_call_error_set_RPCstate(state, call_error, metadata)
return _Rendezvous(state, None, None, deadline)
drive_call()
return _Rendezvous(state, call, self._response_deserializer,
deadline)
def testEcho(self):
DEADLINE = time.time() + 5
DEADLINE_TOLERANCE = 0.25
CLIENT_METADATA_ASCII_KEY = b'key'
CLIENT_METADATA_ASCII_VALUE = b'val'
CLIENT_METADATA_BIN_KEY = b'key-bin'
CLIENT_METADATA_BIN_VALUE = b'\0' * 1000
SERVER_INITIAL_METADATA_KEY = b'init_me_me_me'
SERVER_INITIAL_METADATA_VALUE = b'whodawha?'
SERVER_TRAILING_METADATA_KEY = b'california_is_in_a_drought'
SERVER_TRAILING_METADATA_VALUE = b'zomg it is'
SERVER_STATUS_CODE = cygrpc.StatusCode.ok
SERVER_STATUS_DETAILS = b'our work is never over'
REQUEST = b'in death a member of project mayhem has a name'
RESPONSE = b'his name is robert paulson'
METHOD = b'twinkies'
cygrpc_deadline = cygrpc.Timespec(DEADLINE)
server_request_tag = object()
request_call_result = self.server.request_call(
self.server_completion_queue, self.server_completion_queue,
server_request_tag)
self.assertEqual(cygrpc.CallError.ok, request_call_result)
client_call_tag = object()
client_call = self.client_channel.create_call(
None, 0, self.client_completion_queue, METHOD, self.host_argument,
cygrpc_deadline)
client_initial_metadata = cygrpc.Metadata([
cygrpc.Metadatum(CLIENT_METADATA_ASCII_KEY,
CLIENT_METADATA_ASCII_VALUE),
cygrpc.Metadatum(CLIENT_METADATA_BIN_KEY,
CLIENT_METADATA_BIN_VALUE)
])
client_start_batch_result = client_call.start_batch(
cygrpc.Operations([
cygrpc.operation_send_initial_metadata(client_initial_metadata,
_EMPTY_FLAGS),
cygrpc.operation_send_message(REQUEST, _EMPTY_FLAGS),
cygrpc.operation_send_close_from_client(_EMPTY_FLAGS),
cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),
cygrpc.operation_receive_message(_EMPTY_FLAGS),
cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS)
]), client_call_tag)
self.assertEqual(cygrpc.CallError.ok, client_start_batch_result)
client_event_future = test_utilities.CompletionQueuePollFuture(
self.client_completion_queue, cygrpc_deadline)
request_event = self.server_completion_queue.poll(cygrpc_deadline)
self.assertEqual(cygrpc.CompletionType.operation_complete,
request_event.type)
self.assertIsInstance(request_event.operation_call, cygrpc.Call)
self.assertIs(server_request_tag, request_event.tag)
self.assertEqual(0, len(request_event.batch_operations))
self.assertTrue(
test_common.metadata_transmitted(client_initial_metadata,
request_event.request_metadata))
self.assertEqual(METHOD, request_event.request_call_details.method)
self.assertEqual(self.expected_host,
request_event.request_call_details.host)
self.assertLess(
abs(DEADLINE - float(request_event.request_call_details.deadline)),
DEADLINE_TOLERANCE)
server_call_tag = object()
server_call = request_event.operation_call
server_initial_metadata = cygrpc.Metadata([
cygrpc.Metadatum(SERVER_INITIAL_METADATA_KEY,
SERVER_INITIAL_METADATA_VALUE)
])
server_trailing_metadata = cygrpc.Metadata([
cygrpc.Metadatum(SERVER_TRAILING_METADATA_KEY,
SERVER_TRAILING_METADATA_VALUE)
])
server_start_batch_result = server_call.start_batch([
cygrpc.operation_send_initial_metadata(server_initial_metadata,
_EMPTY_FLAGS),
cygrpc.operation_receive_message(_EMPTY_FLAGS),
cygrpc.operation_send_message(RESPONSE, _EMPTY_FLAGS),
cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS),
cygrpc.operation_send_status_from_server(
server_trailing_metadata, SERVER_STATUS_CODE,
SERVER_STATUS_DETAILS, _EMPTY_FLAGS)
], server_call_tag)
self.assertEqual(cygrpc.CallError.ok, server_start_batch_result)
client_event = client_event_future.result()
server_event = self.server_completion_queue.poll(cygrpc_deadline)
self.assertEqual(6, len(client_event.batch_operations))
found_client_op_types = set()
for client_result in client_event.batch_operations:
# we expect each op type to be unique
self.assertNotIn(client_result.type, found_client_op_types)
found_client_op_types.add(client_result.type)
if client_result.type == cygrpc.OperationType.receive_initial_metadata:
self.assertTrue(
test_common.metadata_transmitted(
server_initial_metadata,
client_result.received_metadata))
elif client_result.type == cygrpc.OperationType.receive_message:
self.assertEqual(RESPONSE,
client_result.received_message.bytes())
elif client_result.type == cygrpc.OperationType.receive_status_on_client:
self.assertTrue(
test_common.metadata_transmitted(
server_trailing_metadata,
client_result.received_metadata))
self.assertEqual(SERVER_STATUS_DETAILS,
client_result.received_status_details)
self.assertEqual(SERVER_STATUS_CODE,
client_result.received_status_code)
self.assertEqual(
set([
cygrpc.OperationType.send_initial_metadata,
cygrpc.OperationType.send_message,
cygrpc.OperationType.send_close_from_client,
cygrpc.OperationType.receive_initial_metadata,
cygrpc.OperationType.receive_message,
cygrpc.OperationType.receive_status_on_client
]), found_client_op_types)
self.assertEqual(5, len(server_event.batch_operations))
found_server_op_types = set()
for server_result in server_event.batch_operations:
self.assertNotIn(client_result.type, found_server_op_types)
found_server_op_types.add(server_result.type)
if server_result.type == cygrpc.OperationType.receive_message:
self.assertEqual(REQUEST,
server_result.received_message.bytes())
elif server_result.type == cygrpc.OperationType.receive_close_on_server:
self.assertFalse(server_result.received_cancelled)
self.assertEqual(
set([
cygrpc.OperationType.send_initial_metadata,
cygrpc.OperationType.receive_message,
cygrpc.OperationType.send_message,
cygrpc.OperationType.receive_close_on_server,
cygrpc.OperationType.send_status_from_server
]), found_server_op_types)
del client_call
del server_call
def testCancelManyCalls(self):
server_thread_pool = logging_pool.pool(
test_constants.THREAD_CONCURRENCY)
server_completion_queue = cygrpc.CompletionQueue()
server = cygrpc.Server()
server.register_completion_queue(server_completion_queue)
port = server.add_http2_port(b'[::]:0')
server.start()
channel = cygrpc.Channel('localhost:{}'.format(port).encode())
state = _State()
server_thread_args = (
state,
server,
server_completion_queue,
server_thread_pool,
)
server_thread = threading.Thread(target=_serve,
args=server_thread_args)
server_thread.start()
client_condition = threading.Condition()
client_due = set()
client_completion_queue = cygrpc.CompletionQueue()
client_driver = _QueueDriver(client_condition, client_completion_queue,
client_due)
client_driver.start()
with client_condition:
client_calls = []
for index in range(test_constants.RPC_CONCURRENCY):
client_call = channel.create_call(None, _EMPTY_FLAGS,
client_completion_queue,
b'/twinkies', None,
_INFINITE_FUTURE)
operations = (
cygrpc.operation_send_initial_metadata(
_EMPTY_METADATA, _EMPTY_FLAGS),
cygrpc.operation_send_message(b'\x45\x56', _EMPTY_FLAGS),
cygrpc.operation_send_close_from_client(_EMPTY_FLAGS),
cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),
cygrpc.operation_receive_message(_EMPTY_FLAGS),
cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS),
)
tag = 'client_complete_call_{0:04d}_tag'.format(index)
client_call.start_client_batch(cygrpc.Operations(operations),
tag)
client_due.add(tag)
client_calls.append(client_call)
with state.condition:
while True:
if state.parked_handlers < test_constants.THREAD_CONCURRENCY:
state.condition.wait()
elif state.handled_rpcs < test_constants.RPC_CONCURRENCY:
state.condition.wait()
else:
state.handlers_released = True
state.condition.notify_all()
break
client_driver.events(test_constants.RPC_CONCURRENCY *
_SUCCESS_CALL_FRACTION)
with client_condition:
for client_call in client_calls:
client_call.cancel()
with state.condition:
server.shutdown(server_completion_queue, _SERVER_SHUTDOWN_TAG)
def _do_rpcs(self):
server_request_call_tag = 'server_request_call_tag'
server_send_initial_metadata_tag = 'server_send_initial_metadata_tag'
server_complete_rpc_tag = 'server_complete_rpc_tag'
with self.server_condition:
server_request_call_start_batch_result = self.server.request_call(
self.server_completion_queue, self.server_completion_queue,
server_request_call_tag)
self.server_driver.add_due({
server_request_call_tag,
})
client_call = self.channel.create_call(None, _common.EMPTY_FLAGS,
self.client_completion_queue,
b'/twinkies', None,
_common.INFINITE_FUTURE)
client_receive_initial_metadata_tag = 'client_receive_initial_metadata_tag'
client_complete_rpc_tag = 'client_complete_rpc_tag'
with self.client_condition:
client_receive_initial_metadata_start_batch_result = (
client_call.start_client_batch(
cygrpc.Operations([
cygrpc.operation_receive_initial_metadata(
_common.EMPTY_FLAGS),
]), client_receive_initial_metadata_tag))
client_complete_rpc_start_batch_result = client_call.start_client_batch(
cygrpc.Operations([
cygrpc.operation_send_initial_metadata(
_common.INVOCATION_METADATA, _common.EMPTY_FLAGS),
cygrpc.operation_send_close_from_client(
_common.EMPTY_FLAGS),
cygrpc.operation_receive_status_on_client(
_common.EMPTY_FLAGS),
]), client_complete_rpc_tag)
self.client_driver.add_due({
client_receive_initial_metadata_tag,
client_complete_rpc_tag,
})
server_request_call_event = self.server_driver.event_with_tag(
server_request_call_tag)
with self.server_condition:
server_send_initial_metadata_start_batch_result = (
server_request_call_event.operation_call.start_server_batch([
cygrpc.operation_send_initial_metadata(
_common.INITIAL_METADATA, _common.EMPTY_FLAGS),
], server_send_initial_metadata_tag))
self.server_driver.add_due({
server_send_initial_metadata_tag,
})
server_send_initial_metadata_event = self.server_driver.event_with_tag(
server_send_initial_metadata_tag)
with self.server_condition:
server_complete_rpc_start_batch_result = (
server_request_call_event.operation_call.start_server_batch([
cygrpc.operation_receive_close_on_server(
_common.EMPTY_FLAGS),
cygrpc.operation_send_status_from_server(
_common.TRAILING_METADATA, cygrpc.StatusCode.ok,
b'test details', _common.EMPTY_FLAGS),
], server_complete_rpc_tag))
self.server_driver.add_due({
server_complete_rpc_tag,
})
server_complete_rpc_event = self.server_driver.event_with_tag(
server_complete_rpc_tag)
client_receive_initial_metadata_event = self.client_driver.event_with_tag(
client_receive_initial_metadata_tag)
client_complete_rpc_event = self.client_driver.event_with_tag(
client_complete_rpc_tag)
return (
_common.OperationResult(server_request_call_start_batch_result,
server_request_call_event.type,
server_request_call_event.success),
_common.OperationResult(
client_receive_initial_metadata_start_batch_result,
client_receive_initial_metadata_event.type,
client_receive_initial_metadata_event.success),
_common.OperationResult(client_complete_rpc_start_batch_result,
client_complete_rpc_event.type,
client_complete_rpc_event.success),
_common.OperationResult(
server_send_initial_metadata_start_batch_result,
server_send_initial_metadata_event.type,
server_send_initial_metadata_event.success),
_common.OperationResult(server_complete_rpc_start_batch_result,
server_complete_rpc_event.type,
server_complete_rpc_event.success),
)
def testReadSomeButNotAllResponses(self):
server_completion_queue = cygrpc.CompletionQueue()
server = cygrpc.Server(cygrpc.ChannelArgs([]))
server.register_completion_queue(server_completion_queue)
port = server.add_http2_port(b'[::]:0')
server.start()
channel = cygrpc.Channel('localhost:{}'.format(port).encode(),
cygrpc.ChannelArgs([]))
server_shutdown_tag = 'server_shutdown_tag'
server_driver = _ServerDriver(server_completion_queue,
server_shutdown_tag)
server_driver.start()
client_condition = threading.Condition()
client_due = set()
client_completion_queue = cygrpc.CompletionQueue()
client_driver = _QueueDriver(client_condition, client_completion_queue,
client_due)
client_driver.start()
server_call_condition = threading.Condition()
server_send_initial_metadata_tag = 'server_send_initial_metadata_tag'
server_send_first_message_tag = 'server_send_first_message_tag'
server_send_second_message_tag = 'server_send_second_message_tag'
server_complete_rpc_tag = 'server_complete_rpc_tag'
server_call_due = set((
server_send_initial_metadata_tag,
server_send_first_message_tag,
server_send_second_message_tag,
server_complete_rpc_tag,))
server_call_completion_queue = cygrpc.CompletionQueue()
server_call_driver = _QueueDriver(server_call_condition,
server_call_completion_queue,
server_call_due)
server_call_driver.start()
server_rpc_tag = 'server_rpc_tag'
request_call_result = server.request_call(server_call_completion_queue,
server_completion_queue,
server_rpc_tag)
client_call = channel.create_call(None, _EMPTY_FLAGS,
client_completion_queue, b'/twinkies',
None, _INFINITE_FUTURE)
client_receive_initial_metadata_tag = 'client_receive_initial_metadata_tag'
client_complete_rpc_tag = 'client_complete_rpc_tag'
with client_condition:
client_receive_initial_metadata_start_batch_result = (
client_call.start_client_batch(
cygrpc.Operations([
cygrpc.operation_receive_initial_metadata(_EMPTY_FLAGS),
]), client_receive_initial_metadata_tag))
client_due.add(client_receive_initial_metadata_tag)
client_complete_rpc_start_batch_result = (
client_call.start_client_batch(
cygrpc.Operations([
cygrpc.operation_send_initial_metadata(_EMPTY_METADATA,
_EMPTY_FLAGS),
cygrpc.operation_send_close_from_client(_EMPTY_FLAGS),
cygrpc.operation_receive_status_on_client(_EMPTY_FLAGS),
]), client_complete_rpc_tag))
client_due.add(client_complete_rpc_tag)
server_rpc_event = server_driver.first_event()
with server_call_condition:
server_send_initial_metadata_start_batch_result = (
server_rpc_event.operation_call.start_server_batch([
cygrpc.operation_send_initial_metadata(_EMPTY_METADATA,
_EMPTY_FLAGS),
], server_send_initial_metadata_tag))
server_send_first_message_start_batch_result = (
server_rpc_event.operation_call.start_server_batch([
cygrpc.operation_send_message(b'\x07', _EMPTY_FLAGS),
], server_send_first_message_tag))
server_send_initial_metadata_event = server_call_driver.event_with_tag(
server_send_initial_metadata_tag)
server_send_first_message_event = server_call_driver.event_with_tag(
server_send_first_message_tag)
with server_call_condition:
server_send_second_message_start_batch_result = (
server_rpc_event.operation_call.start_server_batch([
cygrpc.operation_send_message(b'\x07', _EMPTY_FLAGS),
], server_send_second_message_tag))
server_complete_rpc_start_batch_result = (
server_rpc_event.operation_call.start_server_batch([
cygrpc.operation_receive_close_on_server(_EMPTY_FLAGS),
cygrpc.operation_send_status_from_server(
cygrpc.Metadata(()), cygrpc.StatusCode.ok,
b'test details', _EMPTY_FLAGS),
], server_complete_rpc_tag))
server_send_second_message_event = server_call_driver.event_with_tag(
server_send_second_message_tag)
server_complete_rpc_event = server_call_driver.event_with_tag(
server_complete_rpc_tag)
server_call_driver.events()
with client_condition:
client_receive_first_message_tag = 'client_receive_first_message_tag'
client_receive_first_message_start_batch_result = (
client_call.start_client_batch(
cygrpc.Operations([
cygrpc.operation_receive_message(_EMPTY_FLAGS),
]), client_receive_first_message_tag))
client_due.add(client_receive_first_message_tag)
client_receive_first_message_event = client_driver.event_with_tag(
client_receive_first_message_tag)
client_call_cancel_result = client_call.cancel()
client_driver.events()
server.shutdown(server_completion_queue, server_shutdown_tag)
server.cancel_all_calls()
server_driver.events()
self.assertEqual(cygrpc.CallError.ok, request_call_result)
self.assertEqual(cygrpc.CallError.ok,
server_send_initial_metadata_start_batch_result)
self.assertEqual(cygrpc.CallError.ok,
client_receive_initial_metadata_start_batch_result)
self.assertEqual(cygrpc.CallError.ok,
client_complete_rpc_start_batch_result)
self.assertEqual(cygrpc.CallError.ok, client_call_cancel_result)
self.assertIs(server_rpc_tag, server_rpc_event.tag)
self.assertEqual(cygrpc.CompletionType.operation_complete,
server_rpc_event.type)
self.assertIsInstance(server_rpc_event.operation_call, cygrpc.Call)
self.assertEqual(0, len(server_rpc_event.batch_operations))