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prd-web-01.centraldc.gr

✎ EDIT FILE

EDITING: signal.py

#
# Representation of a signal
#
# Copyright (C) 2019  Red Hat, Inc.  All rights reserved.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
# USA
#

__all__ = ["Signal"]

class Signal(object):
    """Default representation of a signal."""

__slots__ = [
        "_callbacks",
        "__weakref__"
    ]

def __init__(self):
        """Create a new signal."""
        self._callbacks = []

def connect(self, callback):
        """Connect to a signal.

:param callback: a function to register
        """
        self._callbacks.append(callback)

def __call__(self, *args, **kwargs):
        """Emit a signal with the given arguments."""
        self.emit(*args, **kwargs)

def emit(self, *args, **kwargs):
        """Emit a signal with the given arguments."""
        # The list of callbacks can be changed, so
        # use a copy of the list for the iteration.
        for callback in self._callbacks.copy():
            callback(*args, **kwargs)

def disconnect(self, callback=None):
        """Disconnect from a signal.

If no callback is specified, then all functions will
        be unregistered from the signal.

If the specified callback isn't registered, do nothing.

:param callback: a function to unregister or None
        """
        if callback is None:
            self._callbacks.clear()
            return

try:
            self._callbacks.remove(callback)
        except ValueError:
            pass

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📁 __pycache__/	DIR	—	2026-04-06 07:14
📁 client/	DIR	—	2026-04-06 07:14
📁 server/	DIR	—	2026-04-06 07:14
📄 __init__.py	PY	0 B	2022-11-07 13:19	EDIT
📄 connection.py	PY	11.3 KB	2022-11-07 13:19	EDIT
📄 constants.py	PY	1.3 KB	2022-11-07 13:19	EDIT
📄 error.py	PY	8.6 KB	2022-11-07 13:19	EDIT
📄 identifier.py	PY	6.4 KB	2022-11-07 13:19	EDIT
📄 loop.py	PY	1.9 KB	2022-11-07 13:19	EDIT
📄 namespace.py	PY	1.4 KB	2022-11-07 13:19	EDIT
📄 signal.py	PY	2.1 KB	2022-11-07 13:19	EDIT
📄 specification.py	PY	8.9 KB	2022-11-07 13:19	EDIT
📄 structure.py	PY	12.5 KB	2022-11-07 13:19	EDIT
📄 typing.py	PY	11.9 KB	2022-11-07 13:19	EDIT
📄 unix.py	PY	8.6 KB	2022-11-07 13:19	EDIT
📄 xml.py	PY	4.9 KB	2022-11-07 13:19	EDIT

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