mirror of
https://github.com/SickGear/SickGear.git
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69 lines
2.5 KiB
Python
69 lines
2.5 KiB
Python
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# coding=utf-8
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#
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# This file is part of SickGear.
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#
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# SickGear is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# SickGear is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with SickGear. If not, see <http://www.gnu.org/licenses/>.
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# noinspection PyCompatibility
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from concurrent.futures import ThreadPoolExecutor
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# noinspection PyCompatibility,PyProtectedMember,PyUnresolvedReferences
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from concurrent.futures.thread import _base, _shutdown, BrokenThreadPool
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from .base import *
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class SgWorkItem(GenericWorkItem):
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def run(self):
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if self.future.set_running_or_notify_cancel():
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try:
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self._set_thread_name()
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result = self.fn(*self.args, **self.kwargs)
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except BaseException as exc:
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self.future.set_exception(exc)
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# Break a reference cycle with the exception 'exc'
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self = None
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else:
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self.future.set_result(result)
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class SgThreadPoolExecutor(ThreadPoolExecutor):
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def submit(*args, **kwargs):
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if 2 <= len(args):
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self, fn, *args = args
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elif not args:
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raise TypeError('descriptor \'submit\' of \'ThreadPoolExecutor\' object needs an argument')
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elif 'fn' in kwargs:
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fn = kwargs.pop('fn')
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self, *args = args
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import warnings
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warnings.warn('Passing \'fn\' as keyword argument is deprecated', DeprecationWarning, stacklevel=2)
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else:
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raise TypeError('submit expected at least 1 positional argument, got %d' % (len(args) - 1))
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with self._shutdown_lock:
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if self._broken:
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raise BrokenThreadPool(self._broken)
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if self._shutdown:
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raise RuntimeError('cannot schedule new futures after shutdown')
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if _shutdown:
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raise RuntimeError('cannot schedule new futures after interpreter shutdown')
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f = _base.Future()
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w = SgWorkItem(f, fn, args, kwargs)
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self._work_queue.put(w)
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self._adjust_thread_count()
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return f
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