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/usr/lib/python3/dist-packages/twisted/internet/

/usr/lib/python3/dist-packages/twisted/internet

Name	Size	Mode	Actions
iocpreactor/	-	0755	rm
test/	-	0755	rm
__pycache__/	-	0755	rm
abstract.py	19295	0644	edit dl rm
address.py	5244	0644	edit dl rm
asyncioreactor.py	11131	0644	edit dl rm
base.py	47392	0644	edit dl rm
cfreactor.py	17499	0644	edit dl rm
default.py	1893	0644	edit dl rm
defer.py	85654	0644	edit dl rm
endpoints.py	77440	0644	edit dl rm
epollreactor.py	8941	0644	edit dl rm
error.py	13482	0644	edit dl rm
fdesc.py	3237	0644	edit dl rm
gireactor.py	4620	0644	edit dl rm
glib2reactor.py	1115	0644	edit dl rm
gtk2reactor.py	3640	0644	edit dl rm
gtk3reactor.py	1527	0644	edit dl rm
inotify.py	14396	0644	edit dl rm
interfaces.py	98048	0644	edit dl rm
kqreactor.py	10818	0644	edit dl rm
main.py	1006	0644	edit dl rm
pollreactor.py	5974	0644	edit dl rm
posixbase.py	27604	0644	edit dl rm
process.py	38516	0644	edit dl rm
protocol.py	27391	0644	edit dl rm
pyuisupport.py	843	0644	edit dl rm
reactor.py	1816	0644	edit dl rm
selectreactor.py	6102	0644	edit dl rm
serialport.py	2272	0644	edit dl rm
ssl.py	8643	0644	edit dl rm
stdio.py	1000	0644	edit dl rm
task.py	33608	0644	edit dl rm
tcp.py	54980	0644	edit dl rm
testing.py	29232	0644	edit dl rm
threads.py	3812	0644	edit dl rm
tksupport.py	1971	0644	edit dl rm
udp.py	18619	0644	edit dl rm
unix.py	22508	0644	edit dl rm
utils.py	8682	0644	edit dl rm
win32eventreactor.py	15266	0644	edit dl rm
wxreactor.py	5315	0644	edit dl rm
wxsupport.py	1305	0644	edit dl rm
_baseprocess.py	2003	0644	edit dl rm
_dumbwin32proc.py	12776	0644	edit dl rm
_glibbase.py	12706	0644	edit dl rm
_idna.py	1422	0644	edit dl rm
_newtls.py	9157	0644	edit dl rm
_pollingfile.py	8791	0644	edit dl rm
_posixserialport.py	2081	0644	edit dl rm
_posixstdio.py	4996	0644	edit dl rm
_producer_helpers.py	3909	0644	edit dl rm
_resolver.py	8465	0644	edit dl rm
_signals.py	2670	0644	edit dl rm
_sslverify.py	72796	0644	edit dl rm
_threadedselect.py	11582	0644	edit dl rm
_win32serialport.py	4914	0644	edit dl rm
_win32stdio.py	3140	0644	edit dl rm
__init__.py	521	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/twisted/internet/wxreactor.py (5315B)

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
This module provides wxPython event loop support for Twisted.

In order to use this support, simply do the following::

|  from twisted.internet import wxreactor
    |  wxreactor.install()

Then, when your root wxApp has been created::

| from twisted.internet import reactor
    | reactor.registerWxApp(yourApp)
    | reactor.run()

Then use twisted.internet APIs as usual. Stop the event loop using
reactor.stop(), not yourApp.ExitMainLoop().

IMPORTANT: tests will fail when run under this reactor. This is
expected and probably does not reflect on the reactor's ability to run
real applications.
"""

from queue import Empty, Queue

try:
    from wx import (  # type: ignore[import]
        CallAfter as wxCallAfter,
        PySimpleApp as wxPySimpleApp,
        Timer as wxTimer,
    )
except ImportError:
    # older version of wxPython:
    from wxPython.wx import wxPySimpleApp, wxCallAfter, wxTimer  # type: ignore[import]

from twisted.internet import _threadedselect
from twisted.python import log, runtime

class ProcessEventsTimer(wxTimer):
    """
    Timer that tells wx to process pending events.

This is necessary on macOS, probably due to a bug in wx, if we want
    wxCallAfters to be handled when modal dialogs, menus, etc.  are open.
    """

def __init__(self, wxapp):
        wxTimer.__init__(self)
        self.wxapp = wxapp

def Notify(self):
        """
        Called repeatedly by wx event loop.
        """
        self.wxapp.ProcessPendingEvents()

class WxReactor(_threadedselect.ThreadedSelectReactor):
    """
    wxPython reactor.

wxPython drives the event loop, select() runs in a thread.
    """

_stopping = False

def registerWxApp(self, wxapp):
        """
        Register wxApp instance with the reactor.
        """
        self.wxapp = wxapp

def _installSignalHandlersAgain(self):
        """
        wx sometimes removes our own signal handlers, so re-add them.
        """
        try:
            # make _handleSignals happy:
            import signal

signal.signal(signal.SIGINT, signal.default_int_handler)
        except ImportError:
            return
        self._handleSignals()

def stop(self):
        """
        Stop the reactor.
        """
        if self._stopping:
            return
        self._stopping = True
        _threadedselect.ThreadedSelectReactor.stop(self)

def _runInMainThread(self, f):
        """
        Schedule function to run in main wx/Twisted thread.

Called by the select() thread.
        """
        if hasattr(self, "wxapp"):
            wxCallAfter(f)
        else:
            # wx shutdown but twisted hasn't
            self._postQueue.put(f)

def _stopWx(self):
        """
        Stop the wx event loop if it hasn't already been stopped.

Called during Twisted event loop shutdown.
        """
        if hasattr(self, "wxapp"):
            self.wxapp.ExitMainLoop()

def run(self, installSignalHandlers=True):
        """
        Start the reactor.
        """
        self._postQueue = Queue()
        if not hasattr(self, "wxapp"):
            log.msg(
                "registerWxApp() was not called on reactor, "
                "registering my own wxApp instance."
            )
            self.registerWxApp(wxPySimpleApp())

# start select() thread:
        self.interleave(
            self._runInMainThread, installSignalHandlers=installSignalHandlers
        )
        if installSignalHandlers:
            self.callLater(0, self._installSignalHandlersAgain)

# add cleanup events:
        self.addSystemEventTrigger("after", "shutdown", self._stopWx)
        self.addSystemEventTrigger(
            "after", "shutdown", lambda: self._postQueue.put(None)
        )

# On macOS, work around wx bug by starting timer to ensure
        # wxCallAfter calls are always processed. We don't wake up as
        # often as we could since that uses too much CPU.
        if runtime.platform.isMacOSX():
            t = ProcessEventsTimer(self.wxapp)
            t.Start(2)  # wake up every 2ms

self.wxapp.MainLoop()
        wxapp = self.wxapp
        del self.wxapp

if not self._stopping:
            # wx event loop exited without reactor.stop() being
            # called.  At this point events from select() thread will
            # be added to _postQueue, but some may still be waiting
            # unprocessed in wx, thus the ProcessPendingEvents()
            # below.
            self.stop()
            wxapp.ProcessPendingEvents()  # deal with any queued wxCallAfters
            while 1:
                try:
                    f = self._postQueue.get(timeout=0.01)
                except Empty:
                    continue
                else:
                    if f is None:
                        break
                    try:
                        f()
                    except BaseException:
                        log.err()

def install():
    """
    Configure the twisted mainloop to be run inside the wxPython mainloop.
    """
    reactor = WxReactor()
    from twisted.internet.main import installReactor

installReactor(reactor)
    return reactor

__all__ = ["install"]

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