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- #
- # Copyright 2011 Facebook
- #
- # 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.
- """Interfaces for platform-specific functionality.
- This module exists primarily for documentation purposes and as base classes
- for other tornado.platform modules. Most code should import the appropriate
- implementation from `tornado.platform.auto`.
- """
- def set_close_exec(fd: int) -> None:
- """Sets the close-on-exec bit (``FD_CLOEXEC``)for a file descriptor."""
- raise NotImplementedError()
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