mirror of
https://github.com/php-win-ext/grpc.git
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de6ed9ba9f
- Switched from yapf to black - Reconfigure isort for black - Resolve black/pylint idiosyncrasies Note: I used `--experimental-string-processing` because black was producing "implicit string concatenation", similar to what described here: https://github.com/psf/black/issues/1837. While currently this feature is experimental, it will be enabled by default: https://github.com/psf/black/issues/2188. After running black with the new string processing so that the generated code merges these `"hello" " world"` strings concatenations, then I removed `--experimental-string-processing` for stability, and regenerated the code again. To the reviewer: don't even try to open "Files Changed" tab 😄 It's better to review commit-by-commit, and ignore `run black and isort`.
78 lines
3.2 KiB
Python
78 lines
3.2 KiB
Python
# Copyright 2023 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""The Python implementation of the GRPC helloworld.Greeter server with keepAlive options."""
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from concurrent import futures
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import logging
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from time import sleep
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import grpc
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import helloworld_pb2
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import helloworld_pb2_grpc
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class Greeter(helloworld_pb2_grpc.GreeterServicer):
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def SayHello(self, request, context):
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message = request.name
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if message.startswith("[delay]"):
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sleep(5)
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return helloworld_pb2.HelloReply(message=message)
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def serve():
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"""
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grpc.keepalive_time_ms: The period (in milliseconds) after which a keepalive ping is
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sent on the transport.
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grpc.keepalive_timeout_ms: The amount of time (in milliseconds) the sender of the keepalive
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ping waits for an acknowledgement. If it does not receive an acknowledgment within
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this time, it will close the connection.
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grpc.http2.min_ping_interval_without_data_ms: Minimum allowed time (in milliseconds)
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between a server receiving successive ping frames without sending any data/header frame.
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grpc.max_connection_idle_ms: Maximum time (in milliseconds) that a channel may have no
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outstanding rpcs, after which the server will close the connection.
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grpc.max_connection_age_ms: Maximum time (in milliseconds) that a channel may exist.
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grpc.max_connection_age_grace_ms: Grace period (in milliseconds) after the channel
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reaches its max age.
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grpc.http2.max_pings_without_data: How many pings can the client send before needing to
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send a data/header frame.
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grpc.keepalive_permit_without_calls: If set to 1 (0 : false; 1 : true), allows keepalive
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pings to be sent even if there are no calls in flight.
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For more details, check: https://github.com/grpc/grpc/blob/master/doc/keepalive.md
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"""
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server_options = [
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("grpc.keepalive_time_ms", 20000),
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("grpc.keepalive_timeout_ms", 10000),
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("grpc.http2.min_ping_interval_without_data_ms", 5000),
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("grpc.max_connection_idle_ms", 10000),
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("grpc.max_connection_age_ms", 30000),
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("grpc.max_connection_age_grace_ms", 5000),
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("grpc.http2.max_pings_without_data", 5),
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("grpc.keepalive_permit_without_calls", 1),
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]
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port = "50051"
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server = grpc.server(
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thread_pool=futures.ThreadPoolExecutor(max_workers=10),
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options=server_options,
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)
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helloworld_pb2_grpc.add_GreeterServicer_to_server(Greeter(), server)
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server.add_insecure_port("[::]:" + port)
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server.start()
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print("Server started, listening on " + port)
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server.wait_for_termination()
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if __name__ == "__main__":
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logging.basicConfig()
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serve()
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