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Diffstat (limited to '.venv/lib/python3.12/site-packages/grpc/framework/foundation/logging_pool.py')
-rw-r--r-- | .venv/lib/python3.12/site-packages/grpc/framework/foundation/logging_pool.py | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/grpc/framework/foundation/logging_pool.py b/.venv/lib/python3.12/site-packages/grpc/framework/foundation/logging_pool.py new file mode 100644 index 00000000..a4e140f1 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/grpc/framework/foundation/logging_pool.py @@ -0,0 +1,72 @@ +# Copyright 2015 gRPC authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""A thread pool that logs exceptions raised by tasks executed within it.""" + +from concurrent import futures +import logging + +_LOGGER = logging.getLogger(__name__) + + +def _wrap(behavior): + """Wraps an arbitrary callable behavior in exception-logging.""" + + def _wrapping(*args, **kwargs): + try: + return behavior(*args, **kwargs) + except Exception: + _LOGGER.exception( + "Unexpected exception from %s executed in logging pool!", + behavior, + ) + raise + + return _wrapping + + +class _LoggingPool(object): + """An exception-logging futures.ThreadPoolExecutor-compatible thread pool.""" + + def __init__(self, backing_pool): + self._backing_pool = backing_pool + + def __enter__(self): + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + self._backing_pool.shutdown(wait=True) + + def submit(self, fn, *args, **kwargs): + return self._backing_pool.submit(_wrap(fn), *args, **kwargs) + + def map(self, func, *iterables, **kwargs): + return self._backing_pool.map( + _wrap(func), *iterables, timeout=kwargs.get("timeout", None) + ) + + def shutdown(self, wait=True): + self._backing_pool.shutdown(wait=wait) + + +def pool(max_workers): + """Creates a thread pool that logs exceptions raised by the tasks within it. + + Args: + max_workers: The maximum number of worker threads to allow the pool. + + Returns: + A futures.ThreadPoolExecutor-compatible thread pool that logs exceptions + raised by the tasks executed within it. + """ + return _LoggingPool(futures.ThreadPoolExecutor(max_workers)) |