parent
43d33dc247
commit
f389c38a9c
@ -1,3 +1,3 @@
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from .core import where
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__version__ = "2019.03.09"
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__version__ = "2019.09.11"
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@ -1,2 +1,2 @@
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__version__ = '2.7'
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__version__ = '2.8'
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@ -1,5 +1,6 @@
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# coding=utf-8
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from main import get_filebot_attrs
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from __future__ import absolute_import
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from .main import get_filebot_attrs
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__all__ = ["get_filebot_attrs"]
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@ -1,2 +1,4 @@
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from pyprobe import VideoFileParser
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from pyprobe.pyprobe import VideoFileParser
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from pyprobe.helpers import timeToTuple, sizeStr
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@ -1,259 +0,0 @@
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# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
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# Passes Python2.7's test suite and incorporates all the latest updates.
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# Copyright 2009 Raymond Hettinger, released under the MIT License.
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# http://code.activestate.com/recipes/576693/
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try:
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from thread import get_ident as _get_ident
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except ImportError:
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from dummy_thread import get_ident as _get_ident
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try:
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from _abcoll import KeysView, ValuesView, ItemsView
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except ImportError:
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pass
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class OrderedDict(dict):
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'Dictionary that remembers insertion order'
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# An inherited dict maps keys to values.
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# The inherited dict provides __getitem__, __len__, __contains__, and get.
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# The remaining methods are order-aware.
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# Big-O running times for all methods are the same as for regular dictionaries.
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# The internal self.__map dictionary maps keys to links in a doubly linked list.
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# The circular doubly linked list starts and ends with a sentinel element.
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# The sentinel element never gets deleted (this simplifies the algorithm).
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# Each link is stored as a list of length three: [PREV, NEXT, KEY].
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def __init__(self, *args, **kwds):
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'''Initialize an ordered dictionary. Signature is the same as for
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regular dictionaries, but keyword arguments are not recommended
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because their insertion order is arbitrary.
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'''
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if len(args) > 1:
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raise TypeError('expected at most 1 arguments, got %d' % len(args))
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try:
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self.__root
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except AttributeError:
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self.__root = root = [] # sentinel node
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root[:] = [root, root, None]
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self.__map = {}
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self.__update(*args, **kwds)
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def __setitem__(self, key, value, dict_setitem=dict.__setitem__):
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'od.__setitem__(i, y) <==> od[i]=y'
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# Setting a new item creates a new link which goes at the end of the linked
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# list, and the inherited dictionary is updated with the new key/value pair.
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if key not in self:
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root = self.__root
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last = root[0]
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last[1] = root[0] = self.__map[key] = [last, root, key]
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dict_setitem(self, key, value)
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def __delitem__(self, key, dict_delitem=dict.__delitem__):
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'od.__delitem__(y) <==> del od[y]'
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# Deleting an existing item uses self.__map to find the link which is
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# then removed by updating the links in the predecessor and successor nodes.
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dict_delitem(self, key)
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link_prev, link_next, key = self.__map.pop(key)
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link_prev[1] = link_next
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link_next[0] = link_prev
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def __iter__(self):
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'od.__iter__() <==> iter(od)'
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root = self.__root
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curr = root[1]
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while curr is not root:
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yield curr[2]
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curr = curr[1]
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def __reversed__(self):
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'od.__reversed__() <==> reversed(od)'
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root = self.__root
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curr = root[0]
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while curr is not root:
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yield curr[2]
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curr = curr[0]
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def clear(self):
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'od.clear() -> None. Remove all items from od.'
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try:
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for node in self.__map.itervalues():
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del node[:]
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root = self.__root
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root[:] = [root, root, None]
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self.__map.clear()
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except AttributeError:
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pass
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dict.clear(self)
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def popitem(self, last=True):
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'''od.popitem() -> (k, v), return and remove a (key, value) pair.
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Pairs are returned in LIFO order if last is true or FIFO order if false.
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'''
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if not self:
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raise KeyError('dictionary is empty')
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root = self.__root
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if last:
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link = root[0]
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link_prev = link[0]
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link_prev[1] = root
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root[0] = link_prev
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else:
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link = root[1]
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link_next = link[1]
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root[1] = link_next
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link_next[0] = root
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key = link[2]
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del self.__map[key]
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value = dict.pop(self, key)
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return key, value
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# -- the following methods do not depend on the internal structure --
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def keys(self):
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'od.keys() -> list of keys in od'
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return list(self)
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def values(self):
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'od.values() -> list of values in od'
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return [self[key] for key in self]
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def items(self):
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'od.items() -> list of (key, value) pairs in od'
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return [(key, self[key]) for key in self]
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def iterkeys(self):
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'od.iterkeys() -> an iterator over the keys in od'
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return iter(self)
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def itervalues(self):
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'od.itervalues -> an iterator over the values in od'
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for k in self:
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yield self[k]
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def iteritems(self):
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'od.iteritems -> an iterator over the (key, value) items in od'
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for k in self:
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yield (k, self[k])
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def update(*args, **kwds):
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'''od.update(E, **F) -> None. Update od from dict/iterable E and F.
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If E is a dict instance, does: for k in E: od[k] = E[k]
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If E has a .keys() method, does: for k in E.keys(): od[k] = E[k]
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Or if E is an iterable of items, does: for k, v in E: od[k] = v
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In either case, this is followed by: for k, v in F.items(): od[k] = v
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'''
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if len(args) > 2:
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raise TypeError('update() takes at most 2 positional '
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'arguments (%d given)' % (len(args),))
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elif not args:
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raise TypeError('update() takes at least 1 argument (0 given)')
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self = args[0]
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# Make progressively weaker assumptions about "other"
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other = ()
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if len(args) == 2:
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other = args[1]
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if isinstance(other, dict):
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for key in other:
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self[key] = other[key]
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elif hasattr(other, 'keys'):
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for key in other.keys():
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self[key] = other[key]
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else:
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for key, value in other:
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self[key] = value
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for key, value in kwds.items():
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self[key] = value
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__update = update # let subclasses override update without breaking __init__
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__marker = object()
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def pop(self, key, default=__marker):
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'''od.pop(k[,d]) -> v, remove specified key and return the corresponding value.
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If key is not found, d is returned if given, otherwise KeyError is raised.
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'''
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if key in self:
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result = self[key]
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del self[key]
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return result
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if default is self.__marker:
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raise KeyError(key)
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return default
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def setdefault(self, key, default=None):
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'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
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if key in self:
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return self[key]
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self[key] = default
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return default
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def __repr__(self, _repr_running={}):
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'od.__repr__() <==> repr(od)'
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call_key = id(self), _get_ident()
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if call_key in _repr_running:
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return '...'
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_repr_running[call_key] = 1
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try:
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if not self:
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return '%s()' % (self.__class__.__name__,)
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return '%s(%r)' % (self.__class__.__name__, self.items())
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finally:
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del _repr_running[call_key]
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def __reduce__(self):
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'Return state information for pickling'
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items = [[k, self[k]] for k in self]
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inst_dict = vars(self).copy()
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for k in vars(OrderedDict()):
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inst_dict.pop(k, None)
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if inst_dict:
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return (self.__class__, (items,), inst_dict)
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return self.__class__, (items,)
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def copy(self):
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'od.copy() -> a shallow copy of od'
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return self.__class__(self)
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@classmethod
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def fromkeys(cls, iterable, value=None):
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'''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
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and values equal to v (which defaults to None).
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'''
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d = cls()
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for key in iterable:
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d[key] = value
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return d
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def __eq__(self, other):
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'''od.__eq__(y) <==> od==y. Comparison to another OD is order-sensitive
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while comparison to a regular mapping is order-insensitive.
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'''
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if isinstance(other, OrderedDict):
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return len(self)==len(other) and self.items() == other.items()
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return dict.__eq__(self, other)
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def __ne__(self, other):
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return not self == other
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# -- the following methods are only used in Python 2.7 --
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def viewkeys(self):
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"od.viewkeys() -> a set-like object providing a view on od's keys"
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return KeysView(self)
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def viewvalues(self):
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"od.viewvalues() -> an object providing a view on od's values"
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return ValuesView(self)
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def viewitems(self):
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"od.viewitems() -> a set-like object providing a view on od's items"
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return ItemsView(self)
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# Backport of selectors.py from Python 3.5+ to support Python < 3.4
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# Also has the behavior specified in PEP 475 which is to retry syscalls
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# in the case of an EINTR error. This module is required because selectors34
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# does not follow this behavior and instead returns that no dile descriptor
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# events have occurred rather than retry the syscall. The decision to drop
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# support for select.devpoll is made to maintain 100% test coverage.
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import errno
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import math
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import select
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import socket
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import sys
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import time
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from collections import namedtuple, Mapping
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try:
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monotonic = time.monotonic
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except (AttributeError, ImportError): # Python 3.3<
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monotonic = time.time
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EVENT_READ = (1 << 0)
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EVENT_WRITE = (1 << 1)
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HAS_SELECT = True # Variable that shows whether the platform has a selector.
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_SYSCALL_SENTINEL = object() # Sentinel in case a system call returns None.
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_DEFAULT_SELECTOR = None
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class SelectorError(Exception):
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def __init__(self, errcode):
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super(SelectorError, self).__init__()
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self.errno = errcode
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def __repr__(self):
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return "<SelectorError errno={0}>".format(self.errno)
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def __str__(self):
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return self.__repr__()
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def _fileobj_to_fd(fileobj):
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""" Return a file descriptor from a file object. If
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given an integer will simply return that integer back. """
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if isinstance(fileobj, int):
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fd = fileobj
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else:
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try:
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fd = int(fileobj.fileno())
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except (AttributeError, TypeError, ValueError):
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raise ValueError("Invalid file object: {0!r}".format(fileobj))
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if fd < 0:
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raise ValueError("Invalid file descriptor: {0}".format(fd))
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return fd
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# Determine which function to use to wrap system calls because Python 3.5+
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# already handles the case when system calls are interrupted.
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if sys.version_info >= (3, 5):
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def _syscall_wrapper(func, _, *args, **kwargs):
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""" This is the short-circuit version of the below logic
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because in Python 3.5+ all system calls automatically restart
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and recalculate their timeouts. """
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try:
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return func(*args, **kwargs)
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except (OSError, IOError, select.error) as e:
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errcode = None
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if hasattr(e, "errno"):
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errcode = e.errno
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raise SelectorError(errcode)
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else:
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def _syscall_wrapper(func, recalc_timeout, *args, **kwargs):
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""" Wrapper function for syscalls that could fail due to EINTR.
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All functions should be retried if there is time left in the timeout
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in accordance with PEP 475. """
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timeout = kwargs.get("timeout", None)
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if timeout is None:
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expires = None
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recalc_timeout = False
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else:
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timeout = float(timeout)
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if timeout < 0.0: # Timeout less than 0 treated as no timeout.
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expires = None
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else:
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expires = monotonic() + timeout
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args = list(args)
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if recalc_timeout and "timeout" not in kwargs:
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raise ValueError(
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"Timeout must be in args or kwargs to be recalculated")
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result = _SYSCALL_SENTINEL
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while result is _SYSCALL_SENTINEL:
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try:
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result = func(*args, **kwargs)
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# OSError is thrown by select.select
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# IOError is thrown by select.epoll.poll
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# select.error is thrown by select.poll.poll
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# Aren't we thankful for Python 3.x rework for exceptions?
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except (OSError, IOError, select.error) as e:
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# select.error wasn't a subclass of OSError in the past.
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errcode = None
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if hasattr(e, "errno"):
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errcode = e.errno
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elif hasattr(e, "args"):
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errcode = e.args[0]
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# Also test for the Windows equivalent of EINTR.
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is_interrupt = (errcode == errno.EINTR or (hasattr(errno, "WSAEINTR") and
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errcode == errno.WSAEINTR))
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||||
if is_interrupt:
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if expires is not None:
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current_time = monotonic()
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if current_time > expires:
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raise OSError(errno=errno.ETIMEDOUT)
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||||
if recalc_timeout:
|
||||
if "timeout" in kwargs:
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kwargs["timeout"] = expires - current_time
|
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continue
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if errcode:
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raise SelectorError(errcode)
|
||||
else:
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raise
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return result
|
||||
|
||||
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||||
SelectorKey = namedtuple('SelectorKey', ['fileobj', 'fd', 'events', 'data'])
|
||||
|
||||
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class _SelectorMapping(Mapping):
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""" Mapping of file objects to selector keys """
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||||
|
||||
def __init__(self, selector):
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||||
self._selector = selector
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||||
|
||||
def __len__(self):
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||||
return len(self._selector._fd_to_key)
|
||||
|
||||
def __getitem__(self, fileobj):
|
||||
try:
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fd = self._selector._fileobj_lookup(fileobj)
|
||||
return self._selector._fd_to_key[fd]
|
||||
except KeyError:
|
||||
raise KeyError("{0!r} is not registered.".format(fileobj))
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||||
|
||||
def __iter__(self):
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return iter(self._selector._fd_to_key)
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||||
|
||||
|
||||
class BaseSelector(object):
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||||
""" Abstract Selector class
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||||
|
||||
A selector supports registering file objects to be monitored
|
||||
for specific I/O events.
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||||
|
||||
A file object is a file descriptor or any object with a
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||||
`fileno()` method. An arbitrary object can be attached to the
|
||||
file object which can be used for example to store context info,
|
||||
a callback, etc.
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||||
|
||||
A selector can use various implementations (select(), poll(), epoll(),
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||||
and kqueue()) depending on the platform. The 'DefaultSelector' class uses
|
||||
the most efficient implementation for the current platform.
|
||||
"""
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||||
def __init__(self):
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||||
# Maps file descriptors to keys.
|
||||
self._fd_to_key = {}
|
||||
|
||||
# Read-only mapping returned by get_map()
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||||
self._map = _SelectorMapping(self)
|
||||
|
||||
def _fileobj_lookup(self, fileobj):
|
||||
""" Return a file descriptor from a file object.
|
||||
This wraps _fileobj_to_fd() to do an exhaustive
|
||||
search in case the object is invalid but we still
|
||||
have it in our map. Used by unregister() so we can
|
||||
unregister an object that was previously registered
|
||||
even if it is closed. It is also used by _SelectorMapping
|
||||
"""
|
||||
try:
|
||||
return _fileobj_to_fd(fileobj)
|
||||
except ValueError:
|
||||
|
||||
# Search through all our mapped keys.
|
||||
for key in self._fd_to_key.values():
|
||||
if key.fileobj is fileobj:
|
||||
return key.fd
|
||||
|
||||
# Raise ValueError after all.
|
||||
raise
|
||||
|
||||
def register(self, fileobj, events, data=None):
|
||||
""" Register a file object for a set of events to monitor. """
|
||||
if (not events) or (events & ~(EVENT_READ | EVENT_WRITE)):
|
||||
raise ValueError("Invalid events: {0!r}".format(events))
|
||||
|
||||
key = SelectorKey(fileobj, self._fileobj_lookup(fileobj), events, data)
|
||||
|
||||
if key.fd in self._fd_to_key:
|
||||
raise KeyError("{0!r} (FD {1}) is already registered"
|
||||
.format(fileobj, key.fd))
|
||||
|
||||
self._fd_to_key[key.fd] = key
|
||||
return key
|
||||
|
||||
def unregister(self, fileobj):
|
||||
""" Unregister a file object from being monitored. """
|
||||
try:
|
||||
key = self._fd_to_key.pop(self._fileobj_lookup(fileobj))
|
||||
except KeyError:
|
||||
raise KeyError("{0!r} is not registered".format(fileobj))
|
||||
|
||||
# Getting the fileno of a closed socket on Windows errors with EBADF.
|
||||
except socket.error as e: # Platform-specific: Windows.
|
||||
if e.errno != errno.EBADF:
|
||||
raise
|
||||
else:
|
||||
for key in self._fd_to_key.values():
|
||||
if key.fileobj is fileobj:
|
||||
self._fd_to_key.pop(key.fd)
|
||||
break
|
||||
else:
|
||||
raise KeyError("{0!r} is not registered".format(fileobj))
|
||||
return key
|
||||
|
||||
def modify(self, fileobj, events, data=None):
|
||||
""" Change a registered file object monitored events and data. """
|
||||
# NOTE: Some subclasses optimize this operation even further.
|
||||
try:
|
||||
key = self._fd_to_key[self._fileobj_lookup(fileobj)]
|
||||
except KeyError:
|
||||
raise KeyError("{0!r} is not registered".format(fileobj))
|
||||
|
||||
if events != key.events:
|
||||
self.unregister(fileobj)
|
||||
key = self.register(fileobj, events, data)
|
||||
|
||||
elif data != key.data:
|
||||
# Use a shortcut to update the data.
|
||||
key = key._replace(data=data)
|
||||
self._fd_to_key[key.fd] = key
|
||||
|
||||
return key
|
||||
|
||||
def select(self, timeout=None):
|
||||
""" Perform the actual selection until some monitored file objects
|
||||
are ready or the timeout expires. """
|
||||
raise NotImplementedError()
|
||||
|
||||
def close(self):
|
||||
""" Close the selector. This must be called to ensure that all
|
||||
underlying resources are freed. """
|
||||
self._fd_to_key.clear()
|
||||
self._map = None
|
||||
|
||||
def get_key(self, fileobj):
|
||||
""" Return the key associated with a registered file object. """
|
||||
mapping = self.get_map()
|
||||
if mapping is None:
|
||||
raise RuntimeError("Selector is closed")
|
||||
try:
|
||||
return mapping[fileobj]
|
||||
except KeyError:
|
||||
raise KeyError("{0!r} is not registered".format(fileobj))
|
||||
|
||||
def get_map(self):
|
||||
""" Return a mapping of file objects to selector keys """
|
||||
return self._map
|
||||
|
||||
def _key_from_fd(self, fd):
|
||||
""" Return the key associated to a given file descriptor
|
||||
Return None if it is not found. """
|
||||
try:
|
||||
return self._fd_to_key[fd]
|
||||
except KeyError:
|
||||
return None
|
||||
|
||||
def __enter__(self):
|
||||
return self
|
||||
|
||||
def __exit__(self, *args):
|
||||
self.close()
|
||||
|
||||
|
||||
# Almost all platforms have select.select()
|
||||
if hasattr(select, "select"):
|
||||
class SelectSelector(BaseSelector):
|
||||
""" Select-based selector. """
|
||||
def __init__(self):
|
||||
super(SelectSelector, self).__init__()
|
||||
self._readers = set()
|
||||
self._writers = set()
|
||||
|
||||
def register(self, fileobj, events, data=None):
|
||||
key = super(SelectSelector, self).register(fileobj, events, data)
|
||||
if events & EVENT_READ:
|
||||
self._readers.add(key.fd)
|
||||
if events & EVENT_WRITE:
|
||||
self._writers.add(key.fd)
|
||||
return key
|
||||
|
||||
def unregister(self, fileobj):
|
||||
key = super(SelectSelector, self).unregister(fileobj)
|
||||
self._readers.discard(key.fd)
|
||||
self._writers.discard(key.fd)
|
||||
return key
|
||||
|
||||
def _select(self, r, w, timeout=None):
|
||||
""" Wrapper for select.select because timeout is a positional arg """
|
||||
return select.select(r, w, [], timeout)
|
||||
|
||||
def select(self, timeout=None):
|
||||
# Selecting on empty lists on Windows errors out.
|
||||
if not len(self._readers) and not len(self._writers):
|
||||
return []
|
||||
|
||||
timeout = None if timeout is None else max(timeout, 0.0)
|
||||
ready = []
|
||||
r, w, _ = _syscall_wrapper(self._select, True, self._readers,
|
||||
self._writers, timeout)
|
||||
r = set(r)
|
||||
w = set(w)
|
||||
for fd in r | w:
|
||||
events = 0
|
||||
if fd in r:
|
||||
events |= EVENT_READ
|
||||
if fd in w:
|
||||
events |= EVENT_WRITE
|
||||
|
||||
key = self._key_from_fd(fd)
|
||||
if key:
|
||||
ready.append((key, events & key.events))
|
||||
return ready
|
||||
|
||||
|
||||
if hasattr(select, "poll"):
|
||||
class PollSelector(BaseSelector):
|
||||
""" Poll-based selector """
|
||||
def __init__(self):
|
||||
super(PollSelector, self).__init__()
|
||||
self._poll = select.poll()
|
||||
|
||||
def register(self, fileobj, events, data=None):
|
||||
key = super(PollSelector, self).register(fileobj, events, data)
|
||||
event_mask = 0
|
||||
if events & EVENT_READ:
|
||||
event_mask |= select.POLLIN
|
||||
if events & EVENT_WRITE:
|
||||
event_mask |= select.POLLOUT
|
||||
self._poll.register(key.fd, event_mask)
|
||||
return key
|
||||
|
||||
def unregister(self, fileobj):
|
||||
key = super(PollSelector, self).unregister(fileobj)
|
||||
self._poll.unregister(key.fd)
|
||||
return key
|
||||
|
||||
def _wrap_poll(self, timeout=None):
|
||||
""" Wrapper function for select.poll.poll() so that
|
||||
_syscall_wrapper can work with only seconds. """
|
||||
if timeout is not None:
|
||||
if timeout <= 0:
|
||||
timeout = 0
|
||||
else:
|
||||
# select.poll.poll() has a resolution of 1 millisecond,
|
||||
# round away from zero to wait *at least* timeout seconds.
|
||||
timeout = math.ceil(timeout * 1e3)
|
||||
|
||||
result = self._poll.poll(timeout)
|
||||
return result
|
||||
|
||||
def select(self, timeout=None):
|
||||
ready = []
|
||||
fd_events = _syscall_wrapper(self._wrap_poll, True, timeout=timeout)
|
||||
for fd, event_mask in fd_events:
|
||||
events = 0
|
||||
if event_mask & ~select.POLLIN:
|
||||
events |= EVENT_WRITE
|
||||
if event_mask & ~select.POLLOUT:
|
||||
events |= EVENT_READ
|
||||
|
||||
key = self._key_from_fd(fd)
|
||||
if key:
|
||||
ready.append((key, events & key.events))
|
||||
|
||||
return ready
|
||||
|
||||
|
||||
if hasattr(select, "epoll"):
|
||||
class EpollSelector(BaseSelector):
|
||||
""" Epoll-based selector """
|
||||
def __init__(self):
|
||||
super(EpollSelector, self).__init__()
|
||||
self._epoll = select.epoll()
|
||||
|
||||
def fileno(self):
|
||||
return self._epoll.fileno()
|
||||
|
||||
def register(self, fileobj, events, data=None):
|
||||
key = super(EpollSelector, self).register(fileobj, events, data)
|
||||
events_mask = 0
|
||||
if events & EVENT_READ:
|
||||
events_mask |= select.EPOLLIN
|
||||
if events & EVENT_WRITE:
|
||||
events_mask |= select.EPOLLOUT
|
||||
_syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
|
||||
return key
|
||||
|
||||
def unregister(self, fileobj):
|
||||
key = super(EpollSelector, self).unregister(fileobj)
|
||||
try:
|
||||
_syscall_wrapper(self._epoll.unregister, False, key.fd)
|
||||
except SelectorError:
|
||||
# This can occur when the fd was closed since registry.
|
||||
pass
|
||||
return key
|
||||
|
||||
def select(self, timeout=None):
|
||||
if timeout is not None:
|
||||
if timeout <= 0:
|
||||
timeout = 0.0
|
||||
else:
|
||||
# select.epoll.poll() has a resolution of 1 millisecond
|
||||
# but luckily takes seconds so we don't need a wrapper
|
||||
# like PollSelector. Just for better rounding.
|
||||
timeout = math.ceil(timeout * 1e3) * 1e-3
|
||||
timeout = float(timeout)
|
||||
else:
|
||||
timeout = -1.0 # epoll.poll() must have a float.
|
||||
|
||||
# We always want at least 1 to ensure that select can be called
|
||||
# with no file descriptors registered. Otherwise will fail.
|
||||
max_events = max(len(self._fd_to_key), 1)
|
||||
|
||||
ready = []
|
||||
fd_events = _syscall_wrapper(self._epoll.poll, True,
|
||||
timeout=timeout,
|
||||
maxevents=max_events)
|
||||
for fd, event_mask in fd_events:
|
||||
events = 0
|
||||
if event_mask & ~select.EPOLLIN:
|
||||
events |= EVENT_WRITE
|
||||
if event_mask & ~select.EPOLLOUT:
|
||||
events |= EVENT_READ
|
||||
|
||||
key = self._key_from_fd(fd)
|
||||
if key:
|
||||
ready.append((key, events & key.events))
|
||||
return ready
|
||||
|
||||
def close(self):
|
||||
self._epoll.close()
|
||||
super(EpollSelector, self).close()
|
||||
|
||||
|
||||
if hasattr(select, "kqueue"):
|
||||
class KqueueSelector(BaseSelector):
|
||||
""" Kqueue / Kevent-based selector """
|
||||
def __init__(self):
|
||||
super(KqueueSelector, self).__init__()
|
||||
self._kqueue = select.kqueue()
|
||||
|
||||
def fileno(self):
|
||||
return self._kqueue.fileno()
|
||||
|
||||
def register(self, fileobj, events, data=None):
|
||||
key = super(KqueueSelector, self).register(fileobj, events, data)
|
||||
if events & EVENT_READ:
|
||||
kevent = select.kevent(key.fd,
|
||||
select.KQ_FILTER_READ,
|
||||
select.KQ_EV_ADD)
|
||||
|
||||
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
|
||||
|
||||
if events & EVENT_WRITE:
|
||||
kevent = select.kevent(key.fd,
|
||||
select.KQ_FILTER_WRITE,
|
||||
select.KQ_EV_ADD)
|
||||
|
||||
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
|
||||
|
||||
return key
|
||||
|
||||
def unregister(self, fileobj):
|
||||
key = super(KqueueSelector, self).unregister(fileobj)
|
||||
if key.events & EVENT_READ:
|
||||
kevent = select.kevent(key.fd,
|
||||
select.KQ_FILTER_READ,
|
||||
select.KQ_EV_DELETE)
|
||||
try:
|
||||
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
|
||||
except SelectorError:
|
||||
pass
|
||||
if key.events & EVENT_WRITE:
|
||||
kevent = select.kevent(key.fd,
|
||||
select.KQ_FILTER_WRITE,
|
||||
select.KQ_EV_DELETE)
|
||||
try:
|
||||
_syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
|
||||
except SelectorError:
|
||||
pass
|
||||
|
||||
return key
|
||||
|
||||
def select(self, timeout=None):
|
||||
if timeout is not None:
|
||||
timeout = max(timeout, 0)
|
||||
|
||||
max_events = len(self._fd_to_key) * 2
|
||||
ready_fds = {}
|
||||
|
||||
kevent_list = _syscall_wrapper(self._kqueue.control, True,
|
||||
None, max_events, timeout)
|
||||
|
||||
for kevent in kevent_list:
|
||||
fd = kevent.ident
|
||||
event_mask = kevent.filter
|
||||
events = 0
|
||||
if event_mask == select.KQ_FILTER_READ:
|
||||
events |= EVENT_READ
|
||||
if event_mask == select.KQ_FILTER_WRITE:
|
||||
events |= EVENT_WRITE
|
||||
|
||||
key = self._key_from_fd(fd)
|
||||
if key:
|
||||
if key.fd not in ready_fds:
|
||||
ready_fds[key.fd] = (key, events & key.events)
|
||||
else:
|
||||
old_events = ready_fds[key.fd][1]
|
||||
ready_fds[key.fd] = (key, (events | old_events) & key.events)
|
||||
|
||||
return list(ready_fds.values())
|
||||
|
||||
def close(self):
|
||||
self._kqueue.close()
|
||||
super(KqueueSelector, self).close()
|
||||
|
||||
|
||||
if not hasattr(select, 'select'): # Platform-specific: AppEngine
|
||||
HAS_SELECT = False
|
||||
|
||||
|
||||
def _can_allocate(struct):
|
||||
""" Checks that select structs can be allocated by the underlying
|
||||
operating system, not just advertised by the select module. We don't
|
||||
check select() because we'll be hopeful that most platforms that
|
||||
don't have it available will not advertise it. (ie: GAE) """
|
||||
try:
|
||||
# select.poll() objects won't fail until used.
|
||||
if struct == 'poll':
|
||||
p = select.poll()
|
||||
p.poll(0)
|
||||
|
||||
# All others will fail on allocation.
|
||||
else:
|
||||
getattr(select, struct)().close()
|
||||
return True
|
||||
except (OSError, AttributeError) as e:
|
||||
return False
|
||||
|
||||
|
||||
# Choose the best implementation, roughly:
|
||||
# kqueue == epoll > poll > select. Devpoll not supported. (See above)
|
||||
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
|
||||
def DefaultSelector():
|
||||
""" This function serves as a first call for DefaultSelector to
|
||||
detect if the select module is being monkey-patched incorrectly
|
||||
by eventlet, greenlet, and preserve proper behavior. """
|
||||
global _DEFAULT_SELECTOR
|
||||
if _DEFAULT_SELECTOR is None:
|
||||
if _can_allocate('kqueue'):
|
||||
_DEFAULT_SELECTOR = KqueueSelector
|
||||
elif _can_allocate('epoll'):
|
||||
_DEFAULT_SELECTOR = EpollSelector
|
||||
elif _can_allocate('poll'):
|
||||
_DEFAULT_SELECTOR = PollSelector
|
||||
elif hasattr(select, 'select'):
|
||||
_DEFAULT_SELECTOR = SelectSelector
|
||||
else: # Platform-specific: AppEngine
|
||||
raise ValueError('Platform does not have a selector')
|
||||
return _DEFAULT_SELECTOR()
|
Loading…
Reference in new issue