FM / python

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

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

Name	Size	Mode	Actions
test/	-	0755	rm
_pydoctortemplates/	-	0755	rm
__pycache__/	-	0755	rm
compat.py	16931	0644	edit dl rm
components.py	14199	0644	edit dl rm
constants.py	513	0644	edit dl rm
context.py	4054	0644	edit dl rm
deprecate.py	27668	0644	edit dl rm
failure.py	27007	0644	edit dl rm
fakepwd.py	6732	0644	edit dl rm
filepath.py	54023	0644	edit dl rm
formmethod.py	12107	0644	edit dl rm
htmlizer.py	3626	0644	edit dl rm
lockfile.py	8026	0644	edit dl rm
log.py	22302	0644	edit dl rm
logfile.py	10119	0644	edit dl rm
modules.py	26715	0644	edit dl rm
monkey.py	2164	0644	edit dl rm
procutils.py	1371	0644	edit dl rm
randbytes.py	3459	0644	edit dl rm
rebuild.py	7122	0644	edit dl rm
reflect.py	20480	0644	edit dl rm
release.py	1104	0644	edit dl rm
roots.py	7178	0644	edit dl rm
runtime.py	5924	0644	edit dl rm
sendmsg.py	2682	0644	edit dl rm
shortcut.py	2302	0644	edit dl rm
syslog.py	3652	0644	edit dl rm
systemd.py	2987	0644	edit dl rm
text.py	5417	0644	edit dl rm
threadable.py	3327	0644	edit dl rm
threadpool.py	10203	0644	edit dl rm
twisted-completion.zsh	1371	0644	edit dl rm
url.py	244	0644	edit dl rm
urlpath.py	8447	0644	edit dl rm
usage.py	34577	0644	edit dl rm
util.py	27432	0644	edit dl rm
versions.py	273	0644	edit dl rm
win32.py	4794	0644	edit dl rm
zippath.py	9028	0644	edit dl rm
zipstream.py	9680	0644	edit dl rm
_appdirs.py	820	0644	edit dl rm
_inotify.py	3496	0644	edit dl rm
_pydoctor.py	6735	0644	edit dl rm
_release.py	18879	0644	edit dl rm
_shellcomp.py	25279	0644	edit dl rm
_textattributes.py	9097	0644	edit dl rm
_tzhelper.py	3128	0644	edit dl rm
_url.py	228	0644	edit dl rm
__init__.py	598	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/twisted/python/threadable.py (3327B)

# -*- test-case-name: twisted.python.test_threadable -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
A module to provide some very basic threading primitives, such as
synchronization.
"""

from functools import wraps

class DummyLock:
    """
    Hack to allow locks to be unpickled on an unthreaded system.
    """

def __reduce__(self):
        return (unpickle_lock, ())

def unpickle_lock():
    if threadingmodule is not None:
        return XLock()
    else:
        return DummyLock()

unpickle_lock.__safe_for_unpickling__ = True  # type: ignore[attr-defined]

def _synchPre(self):
    if "_threadable_lock" not in self.__dict__:
        _synchLockCreator.acquire()
        if "_threadable_lock" not in self.__dict__:
            self.__dict__["_threadable_lock"] = XLock()
        _synchLockCreator.release()
    self._threadable_lock.acquire()

def _synchPost(self):
    self._threadable_lock.release()

def _sync(klass, function):
    @wraps(function)
    def sync(self, *args, **kwargs):
        _synchPre(self)
        try:
            return function(self, *args, **kwargs)
        finally:
            _synchPost(self)

return sync

def synchronize(*klasses):
    """
    Make all methods listed in each class' synchronized attribute synchronized.

The synchronized attribute should be a list of strings, consisting of the
    names of methods that must be synchronized. If we are running in threaded
    mode these methods will be wrapped with a lock.
    """
    if threadingmodule is not None:
        for klass in klasses:
            for methodName in klass.synchronized:
                sync = _sync(klass, klass.__dict__[methodName])
                setattr(klass, methodName, sync)

def init(with_threads=1):
    """Initialize threading.

Don't bother calling this.  If it needs to happen, it will happen.
    """
    global threaded, _synchLockCreator, XLock

if with_threads:
        if not threaded:
            if threadingmodule is not None:
                threaded = True

class XLock(threadingmodule._RLock):
                    def __reduce__(self):
                        return (unpickle_lock, ())

_synchLockCreator = XLock()
            else:
                raise RuntimeError(
                    "Cannot initialize threading, platform lacks thread support"
                )
    else:
        if threaded:
            raise RuntimeError("Cannot uninitialize threads")
        else:
            pass

_dummyID = object()

def getThreadID():
    if threadingmodule is None:
        return _dummyID
    return threadingmodule.current_thread().ident

def isInIOThread():
    """Are we in the thread responsible for I/O requests (the event loop)?"""
    return ioThread == getThreadID()

def registerAsIOThread():
    """Mark the current thread as responsible for I/O requests."""
    global ioThread
    ioThread = getThreadID()

ioThread = None
threaded = False
# Define these globals which might be overwritten in init().
_synchLockCreator = None
XLock = None

try:
    import threading as _threadingmodule
except ImportError:
    threadingmodule = None
else:
    threadingmodule = _threadingmodule
    init(True)

__all__ = ["isInIOThread", "registerAsIOThread", "getThreadID", "XLock"]

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