Python threading._active() Examples

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Acquiring an RLock forces an entry for the foreign
            # thread to get made in the threading._active map.
            r = threading.RLock()
            r.acquire()
            r.release()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assert_(tid in threading._active)
        self.assert_(isinstance(threading._active[tid],
                                threading._DummyThread))
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        with support.wait_threads_exit():
            tid = _thread.start_new_thread(f, (mutex,))
            # Wait for the thread to finish.
            mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        #Issue 29376
        self.assertTrue(threading._active[tid].is_alive())
        self.assertRegex(repr(threading._active[tid]), '_DummyThread')
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def test_ident_of_no_threading_threads(self):
        # The ident still must work for the main thread and dummy threads.
        self.assertIsNotNone(threading.currentThread().ident)
        def f():
            ident.append(threading.currentThread().ident)
            done.set()
        done = threading.Event()
        ident = []
        with support.wait_threads_exit():
            tid = _thread.start_new_thread(f, ())
            done.wait()
            self.assertEqual(ident[0], tid)
        # Kill the "immortal" _DummyThread
        del threading._active[ident[0]]

    # run with a small(ish) thread stack size (256 KiB) 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = _thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        #Issue 29376
        self.assertTrue(threading._active[tid].is_alive())
        self.assertRegex(repr(threading._active[tid]), '_DummyThread')
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def kill_worker(self, thread_id):
        """
        Removes the worker with the given thread_id from the pool, and
        replaces it with a new worker thread.

        This should only be done for mis-behaving workers.
        """
        if killthread is None:
            raise RuntimeError(
                "Cannot kill worker; killthread/ctypes not available")
        thread_obj = threading._active.get(thread_id)
        killthread.async_raise(thread_id, SystemExit)
        try:
            del self.worker_tracker[thread_id]
        except KeyError:
            pass
        self.logger.info('Killing thread %s', thread_id)
        if thread_obj in self.workers:
            self.workers.remove(thread_obj)
        self.dying_threads[thread_id] = (time.time(), thread_obj)
        self.add_worker_thread(message='Replacement for killed thread %s' % thread_id) 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = _thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def __init__(self):
        #_DummyThread_.__init__(self) # pylint:disable=super-init-not-called

        # It'd be nice to use a pattern like "greenlet-%d", but maybe somebody out
        # there is checking thread names...
        self._name = self._Thread__name = __threading__._newname("DummyThread-%d")
        self._set_ident()

        g = getcurrent()
        gid = _get_ident(g) # same as id(g)
        __threading__._active[gid] = self
        rawlink = getattr(g, 'rawlink', None)
        if rawlink is not None:
            # raw greenlet.greenlet greenlets don't
            # have rawlink...
            rawlink(_cleanup)
        else:
            # ... so for them we use weakrefs.
            # See https://github.com/gevent/gevent/issues/918
            global _weakref
            if _weakref is None:
                _weakref = __import__('weakref')
            ref = _weakref.ref(g, _make_cleanup_id(gid))
            self.__raw_ref = ref 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = _thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def test_foreign_thread(self):
        # Check that a "foreign" thread can use the threading module.
        def f(mutex):
            # Calling current_thread() forces an entry for the foreign
            # thread to get made in the threading._active map.
            threading.current_thread()
            mutex.release()

        mutex = threading.Lock()
        mutex.acquire()
        tid = thread.start_new_thread(f, (mutex,))
        # Wait for the thread to finish.
        mutex.acquire()
        self.assertIn(tid, threading._active)
        self.assertIsInstance(threading._active[tid], threading._DummyThread)
        del threading._active[tid]

    # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently)
    # exposed at the Python level.  This test relies on ctypes to get at it. 

def threading_setup():
    import threading
    return len(threading._active), 0 

def __init__(self):
        #_DummyThread_.__init__(self)

        # It'd be nice to use a pattern like "greenlet-%d", but maybe somebody out
        # there is checking thread names...
        self._name = self._Thread__name = __threading__._newname("DummyThread-%d")
        self._set_ident()

        __threading__._active[_get_ident()] = self
        g = getcurrent()
        rawlink = getattr(g, 'rawlink', None)
        if rawlink is not None:
            rawlink(_cleanup) 

def test_ident_of_no_threading_threads(self):
        # The ident still must work for the main thread and dummy threads.
        self.assertFalse(threading.currentThread().ident is None)
        def f():
            ident.append(threading.currentThread().ident)
            done.set()
        done = threading.Event()
        ident = []
        thread.start_new_thread(f, ())
        done.wait()
        self.assertFalse(ident[0] is None)
        # Kill the "immortal" _DummyThread
        del threading._active[ident[0]]

    # run with a small(ish) thread stack size (256kB) 

def __repr__(self):
        owner, count = self._get_data()
        try:
            owner = threading._active[owner].name
        except KeyError:
            pass
        if owner:
            return "<{}, owned by <{}>x{} for {}>".format(self._name, owner, count, self._lease_timer.elapsed)
        else:
            return "<{}, unowned>".format(self._name) 

def threading_cleanup(num_active, num_limbo):
    import threading
    import time

    _MAX_COUNT = 10
    count = 0
    while len(threading._active) != num_active and count < _MAX_COUNT:
        count += 1
        time.sleep(0.1) 

def _cleanup(g):
    __threading__._active.pop(id(g), None) 

def test_ident_of_no_threading_threads(self):
        # The ident still must work for the main thread and dummy threads.
        self.assertIsNotNone(threading.currentThread().ident)
        def f():
            ident.append(threading.currentThread().ident)
            done.set()
        done = threading.Event()
        ident = []
        _thread.start_new_thread(f, ())
        done.wait()
        self.assertIsNotNone(ident[0])
        # Kill the "immortal" _DummyThread
        del threading._active[ident[0]]

    # run with a small(ish) thread stack size (256kB) 

def _cleanup(g):
    __threading__._active.pop(id(g), None) 

def __init__(self):
        #_DummyThread_.__init__(self)

        # It'd be nice to use a pattern like "greenlet-%d", but maybe somebody out
        # there is checking thread names...
        self._name = self._Thread__name = __threading__._newname("DummyThread-%d")
        self._set_ident()

        __threading__._active[_get_ident()] = self
        g = getcurrent()
        rawlink = getattr(g, 'rawlink', None)
        if rawlink is not None:
            rawlink(_cleanup) 

def test_ident_of_no_threading_threads(self):
        # The ident still must work for the main thread and dummy threads.
        self.assertFalse(threading.currentThread().ident is None)
        def f():
            ident.append(threading.currentThread().ident)
            done.set()
        done = threading.Event()
        ident = []
        thread.start_new_thread(f, ())
        done.wait()
        self.assertFalse(ident[0] is None)
        # Kill the "immortal" _DummyThread
        del threading._active[ident[0]]

    # run with a small(ish) thread stack size (256kB) 

def threading_setup():
    import threading
    return len(threading._active), 0 

def threading_cleanup(num_active, num_limbo):
    import threading
    import time

    _MAX_COUNT = 10
    count = 0
    while len(threading._active) != num_active and count < _MAX_COUNT:
        count += 1
        time.sleep(0.1) 

def threading_cleanup(num_active, num_limbo):
    import threading
    import time

    _MAX_COUNT = 10
    count = 0
    while len(threading._active) != num_active and count < _MAX_COUNT:
        count += 1
        time.sleep(0.1) 

def threading_setup():
    import threading
    return len(threading._active), 0 

def _make_cleanup_id(gid):
    def _(_r):
        __threading__._active.pop(gid, None)
    return _ 

def _cleanup(g):
    __threading__._active.pop(id(g), None) 

def __bootstrap(self):
    try:
      self._set_ident()
      self._Thread__started.set()
      threading._active_limbo_lock.acquire()
      threading._active[self._Thread__ident] = self
      del threading._limbo[self]
      threading._active_limbo_lock.release()

      if threading._trace_hook:
        sys.settrace(threading._trace_hook)
      if threading._profile_hook:
        sys.setprofile(threading._profile_hook)

      try:
        self.run()
      finally:
        self._Thread__exc_clear()
    finally:
      with threading._active_limbo_lock:
        self._Thread__stop()
        try:
          del threading._active[threading._get_ident()]
        except:
          pass