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58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
#
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# Copyright 2011 Facebook
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Implementation of platform-specific functionality.
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For each function or class described in `tornado.platform.interface`,
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the appropriate platform-specific implementation exists in this module.
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Most code that needs access to this functionality should do e.g.::
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from tornado.platform.auto import set_close_exec
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"""
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from __future__ import absolute_import, division, print_function
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import os
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if 'APPENGINE_RUNTIME' in os.environ:
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from tornado.platform.common import Waker
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def set_close_exec(fd):
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pass
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elif os.name == 'nt':
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from tornado.platform.common import Waker
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from tornado.platform.windows import set_close_exec
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else:
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from tornado.platform.posix import set_close_exec, Waker
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try:
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# monotime monkey-patches the time module to have a monotonic function
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# in versions of python before 3.3.
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import monotime
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# Silence pyflakes warning about this unused import
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monotime
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except ImportError:
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pass
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try:
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# monotonic can provide a monotonic function in versions of python before
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# 3.3, too.
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from monotonic import monotonic as monotonic_time
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except ImportError:
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try:
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from time import monotonic as monotonic_time
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except ImportError:
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monotonic_time = None
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__all__ = ['Waker', 'set_close_exec', 'monotonic_time']
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