1 files changed, 0 insertions, 137 deletions
diff --git a/python/gevent/signal.py b/python/gevent/signal.py
deleted file mode 100644
index 0954af8..0000000
--- a/python/gevent/signal.py
+++ /dev/null
@@ -1,137 +0,0 @@
-"""
-Cooperative implementation of special cases of :func:`signal.signal`.
-
-This module is designed to work with libev's child watchers, as used
-by default in :func:`gevent.os.fork` Note that each ``SIGCHLD`` handler
-will be run in a new greenlet when the signal is delivered (just like
-:class:`gevent.hub.signal`)
-
-The implementations in this module are only monkey patched if
-:func:`gevent.os.waitpid` is being used (the default) and if
-:const:`signal.SIGCHLD` is available; see :func:`gevent.os.fork` for
-information on configuring this not to be the case for advanced uses.
-
-.. versionadded:: 1.1b4
-"""
-
-from __future__ import absolute_import
-
-from gevent._util import _NONE as _INITIAL
-from gevent._util import copy_globals
-
-import signal as _signal
-
-__implements__ = []
-__extensions__ = []
-
-
-_child_handler = _INITIAL
-
-_signal_signal = _signal.signal
-_signal_getsignal = _signal.getsignal
-
-
-def getsignal(signalnum):
-    """
-    Exactly the same as :func:`signal.getsignal` except where
-    :const:`signal.SIGCHLD` is concerned.
-
-    For :const:`signal.SIGCHLD`, this cooperates with :func:`signal`
-    to provide consistent answers.
-    """
-    if signalnum != _signal.SIGCHLD:
-        return _signal_getsignal(signalnum)
-
-    global _child_handler
-    if _child_handler is _INITIAL:
-        _child_handler = _signal_getsignal(_signal.SIGCHLD)
-
-    return _child_handler
-
-
-def signal(signalnum, handler):
-    """
-    Exactly the same as :func:`signal.signal` except where
-    :const:`signal.SIGCHLD` is concerned.
-
-    .. note::
-
-       A :const:`signal.SIGCHLD` handler installed with this function
-       will only be triggered for children that are forked using
-       :func:`gevent.os.fork` (:func:`gevent.os.fork_and_watch`);
-       children forked before monkey patching, or otherwise by the raw
-       :func:`os.fork`, will not trigger the handler installed by this
-       function. (It's unlikely that a SIGCHLD handler installed with
-       the builtin :func:`signal.signal` would be triggered either;
-       libev typically overwrites such a handler at the C level. At
-       the very least, it's full of race conditions.)
-
-    .. note::
-
-        Use of ``SIG_IGN`` and ``SIG_DFL`` may also have race conditions
-        with libev child watchers and the :mod:`gevent.subprocess` module.
-
-    .. versionchanged:: 1.2a1
-         If ``SIG_IGN`` or ``SIG_DFL`` are used to ignore ``SIGCHLD``, a
-         future use of ``gevent.subprocess`` and libev child watchers
-         will once again work. However, on Python 2, use of ``os.popen``
-         will fail.
-
-    .. versionchanged:: 1.1rc2
-         Allow using ``SIG_IGN`` and ``SIG_DFL`` to reset and ignore ``SIGCHLD``.
-         However, this allows the possibility of a race condition if ``gevent.subprocess``
-         had already been used.
-    """
-    if signalnum != _signal.SIGCHLD:
-        return _signal_signal(signalnum, handler)
-
-    # TODO: raise value error if not called from the main
-    # greenlet, just like threads
-
-    if handler != _signal.SIG_IGN and handler != _signal.SIG_DFL and not callable(handler):
-        # exact same error message raised by the stdlib
-        raise TypeError("signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object")
-
-    old_handler = getsignal(signalnum)
-    global _child_handler
-    _child_handler = handler
-    if handler in (_signal.SIG_IGN, _signal.SIG_DFL):
-        # Allow resetting/ignoring this signal at the process level.
-        # Note that this conflicts with gevent.subprocess and other users
-        # of child watchers, until the next time gevent.subprocess/loop.install_sigchld()
-        # is called.
-        from gevent.hub import get_hub # Are we always safe to import here?
-        _signal_signal(signalnum, handler)
-        get_hub().loop.reset_sigchld()
-    return old_handler
-
-
-def _on_child_hook():
-    # This is called in the hub greenlet. To let the function
-    # do more useful work, like use blocking functions,
-    # we run it in a new greenlet; see gevent.hub.signal
-    if callable(_child_handler):
-        # None is a valid value for the frame argument
-        from gevent import Greenlet
-        greenlet = Greenlet(_child_handler, _signal.SIGCHLD, None)
-        greenlet.switch()
-
-
-import gevent.os
-
-if 'waitpid' in gevent.os.__implements__ and hasattr(_signal, 'SIGCHLD'):
-    # Tightly coupled here to gevent.os and its waitpid implementation; only use these
-    # if necessary.
-    gevent.os._on_child_hook = _on_child_hook
-    __implements__.append("signal")
-    __implements__.append("getsignal")
-else:
-    # XXX: This breaks test__all__ on windows
-    __extensions__.append("signal")
-    __extensions__.append("getsignal")
-
-__imports__ = copy_globals(_signal, globals(),
-                           names_to_ignore=__implements__ + __extensions__,
-                           dunder_names_to_keep=())
-
-__all__ = __implements__ + __extensions__