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148 lines
4.8 KiB
Python
148 lines
4.8 KiB
Python
# Copyright (c) 2018 gevent community
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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"""
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A re-export of the support module from Python's test package, with some
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version compatibility shims and overrides.
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The manylinux docker images do not include test.support at all, for space reasons,
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so we need to be vaguely functional to run tests in that environment.
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"""
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import sys
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# Proxy through, so that changes to this module reflect in the real
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# module too. (In 3.7, this is natively supported with __getattr__ at
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# module scope.) This breaks static analysis (pylint), so we configure
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# pylint to ignore this module.
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class _Default(object):
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# A descriptor-like object that will
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# only be used if the actual stdlib module
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# doesn't have the value.
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def __init__(self, value):
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self.value = value
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class _ModuleProxy(object):
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__slots__ = ('_this_mod', '_stdlib_support')
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def __init__(self):
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self._this_mod = sys.modules[__name__]
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self._stdlib_support = None
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def __get_stdlib_support(self):
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if self._stdlib_support is None:
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try:
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# Renamed from test_support in Python 3,
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# *and* in 2.7.14 (but with a BWC module)
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from test import support as stdlib_support
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except ImportError:
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try:
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from test import test_support as stdlib_support
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except ImportError:
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stdlib_support = None
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self._stdlib_support = stdlib_support
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return self._stdlib_support
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def __getattr__(self, name):
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try:
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local_val = getattr(self._this_mod, name)
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except AttributeError:
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return getattr(self.__get_stdlib_support(), name)
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if isinstance(local_val, _Default):
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try:
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return getattr(self.__get_stdlib_support(), name)
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except AttributeError:
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return local_val.value
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return local_val
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def __setattr__(self, name, value):
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if name in _ModuleProxy.__slots__:
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super(_ModuleProxy, self).__setattr__(name, value)
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return
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# Setting it deletes it from this module, so that
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# we then continue to fall through to the original module.
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try:
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setattr(self.__get_stdlib_support(), name, value)
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except AttributeError:
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setattr(self._this_mod, name, value)
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else:
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try:
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delattr(self._this_mod, name)
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except AttributeError:
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pass
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def __repr__(self):
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return repr(self._this_mod)
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HOSTv6 = _Default('::1')
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HOST = _Default("localhost")
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HOSTv4 = _Default("127.0.0.1")
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verbose = _Default(False)
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@_Default
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def is_resource_enabled(_):
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return False
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@_Default
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def bind_port(sock, host=None): # pragma: no cover
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import socket
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host = host if host is not None else sys.modules[__name__].HOST
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if sock.family == socket.AF_INET and sock.type == socket.SOCK_STREAM:
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if hasattr(socket, 'SO_EXCLUSIVEADDRUSE'):
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_EXCLUSIVEADDRUSE, 1) # pylint:disable=no-member
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sock.bind((host, 0))
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port = sock.getsockname()[1]
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return port
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@_Default
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def find_unused_port(family=None, socktype=None): # pragma: no cover
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import socket
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family = family or socket.AF_INET
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socktype = socktype or socket.SOCK_STREAM
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tempsock = socket.socket(family, socktype)
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try:
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port = sys.modules[__name__].bind_port(tempsock)
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finally:
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tempsock.close()
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del tempsock
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return port
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@_Default
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def threading_setup():
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return []
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@_Default
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def threading_cleanup(*_):
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pass
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@_Default
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def reap_children():
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pass
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# Set by resources.setup_resources()
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gevent_has_setup_resources = False
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sys.modules[__name__] = _ModuleProxy()
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