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import ctypes, sys, time, _thread
# This lock is used as a simple event variable.
ready = _thread.allocate_lock()
ready.acquire()
# Module globals are cleared before __del__ is run
# So we save the functions in class dict
class C:
ensure = ctypes.pythonapi.PyGILState_Ensure
release = ctypes.pythonapi.PyGILState_Release
def __del__(self):
state = self.ensure()
self.release(state)
def waitingThread():
x = C()
ready.release()
time.sleep(100)
_thread.start_new_thread(waitingThread, ())
ready.acquire() # Be sure the other thread is waiting.
sys.exit(42)
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import sys, threading
# A deadlock-killer, to prevent the
# testsuite to hang forever
def killer():
import os, time
time.sleep(2)
print('program blocked; aborting')
os._exit(2)
t = threading.Thread(target=killer)
t.daemon = True
t.start()
# This is the trace function
def func(frame, event, arg):
threading.current_thread()
return func
sys.settrace(func)
)r r* s r test_finalize_with_tracez$ThreadTests.test_finalize_with_trace s' r c t dd \ }}}| | d | |d d S )Nr a if 1:
import threading
from time import sleep
def child():
sleep(1)
# As a non-daemon thread we SHOULD wake up and nothing
# should be torn down yet
print("Woke up, sleep function is:", sleep)
threading.Thread(target=child).start()
raise SystemExit
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import atexit
import os
import sys
from test.support import wait_process
# Import the threading module to register its "at fork" callback
import threading
def exit_handler():
pid = os.fork()
if not pid:
print("child process ok", file=sys.stderr, flush=True)
# child process
else:
wait_process(pid, exitcode=0)
# exit_handler() will be called after threading._shutdown()
atexit.register(exit_handler)
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import _thread, threading, os, time
def background_thread(evt):
# Creates and registers the _DummyThread instance
threading.current_thread()
evt.set()
time.sleep(10)
evt = threading.Event()
_thread.start_new_thread(background_thread, (evt,))
evt.wait()
assert threading.active_count() == 2, threading.active_count()
if os.fork() == 0:
assert threading.active_count() == 1, threading.active_count()
os._exit(0)
else:
os.wait()
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import os, threading
from test import support
pid = os.fork()
if pid == 0:
main = threading.main_thread()
print(main.name)
print(main.ident == threading.current_thread().ident)
print(main.ident == threading.get_ident())
else:
support.wait_process(pid, exitcode=0)
r
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True
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import os, threading, sys
from test import support
def func():
pid = os.fork()
if pid == 0:
main = threading.main_thread()
print(main.name)
print(main.ident == threading.current_thread().ident)
print(main.ident == threading.get_ident())
# stdout is fully buffered because not a tty,
# we have to flush before exit.
sys.stdout.flush()
else:
support.wait_process(pid, exitcode=0)
th = threading.Thread(target=func)
th.start()
th.join()
r r` rh r zThread-1 (func)
True
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import gc, threading
main_thread = threading.current_thread()
assert main_thread is threading.main_thread() # sanity check
class RefCycle:
def __init__(self):
self.cycle = self
def __del__(self):
print("GC:",
threading.current_thread() is main_thread,
threading.main_thread() is main_thread,
threading.enumerate() == [main_thread])
RefCycle()
gc.collect() # sanity check
x = RefCycle()
r r zGC: True True Truerf )r rb rk
splitlinesrd s r test_main_thread_during_shutdownz,ThreadTests.test_main_thread_during_shutdown s| ( 'tT22 3zz|| c""" **./!3 5 5 5 5 5r c ^ d}t d| \ }}}| |d d S )Na if 1:
import os
import threading
import time
import random
def random_sleep():
seconds = random.random() * 0.010
time.sleep(seconds)
class Sleeper:
def __del__(self):
random_sleep()
tls = threading.local()
def f():
# Sleep a bit so that the thread is still running when
# Py_Finalize() is called.
random_sleep()
tls.x = Sleeper()
random_sleep()
threading.Thread(target=f).start()
random_sleep()
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thread_dict.atexit = "value"
atexit = Atexit()
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import _thread
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event.release()
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raise Exception('threading is already imported')
_thread.start_new_thread(import_threading, ())
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# stdout is fully buffered because not a tty, we have to flush
# before exit.
sys.stdout.flush()
r r` rh zend of main
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import os
t = threading.Thread(target=joiningfunc,
args=(threading.current_thread(),))
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time.sleep(0.1)
print('end of main')
r r+ r s r test_1_join_on_shutdownz,ThreadJoinOnShutdown.test_1_join_on_shutdown s%
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from test import support
childpid = os.fork()
if childpid != 0:
# parent process
support.wait_process(childpid, exitcode=0)
sys.exit(0)
# child process
t = threading.Thread(target=joiningfunc,
args=(threading.current_thread(),))
t.start()
print('end of main')
r r s r test_2_join_in_forked_processz2ThreadJoinOnShutdown.test_2_join_in_forked_process s%
6"""""r c 4 d}| | d S )Na if 1:
from test import support
main_thread = threading.current_thread()
def worker():
childpid = os.fork()
if childpid != 0:
# parent process
support.wait_process(childpid, exitcode=0)
sys.exit(0)
# child process
t = threading.Thread(target=joiningfunc,
args=(main_thread,))
print('end of main')
t.start()
t.join() # Should not block: main_thread is already stopped
w = threading.Thread(target=worker)
w.start()
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import os
import random
import sys
import time
import threading
thread_has_run = set()
def random_io():
'''Loop for a while sleeping random tiny amounts and doing some I/O.'''
import test.test_threading as mod
while True:
with open(mod.__file__, 'rb') as in_f:
stuff = in_f.read(200)
with open(os.devnull, 'wb') as null_f:
null_f.write(stuff)
time.sleep(random.random() / 1995)
thread_has_run.add(threading.current_thread())
def main():
count = 0
for _ in range(40):
new_thread = threading.Thread(target=random_io)
new_thread.daemon = True
new_thread.start()
count += 1
while len(thread_has_run) < count:
time.sleep(0.001)
# Trigger process shutdown
sys.exit(0)
main()
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seconds = random.random() * 0.010
time.sleep(seconds)
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# Sleep a bit so that the thread is still running when
# Py_EndInterpreter is called.
random_sleep()
os.write(%d, b"x")
threading.Thread(target=f).start()
random_sleep()
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import os
import random
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def random_sleep():
seconds = random.random() * 0.010
time.sleep(seconds)
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def __del__(self):
random_sleep()
tls = threading.local()
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# Sleep a bit so that the thread is still running when
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random_sleep()
tls.x = Sleeper()
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while running:
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1/0
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