forked from Lephenixnoir/PythonExtra
37 lines
843 B
Python
37 lines
843 B
Python
# test that we can run the garbage collector within threads
|
|
#
|
|
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
|
|
|
|
import gc
|
|
import _thread
|
|
|
|
|
|
def thread_entry(n):
|
|
# allocate a bytearray and fill it
|
|
data = bytearray(i for i in range(256))
|
|
|
|
# do some work and call gc.collect() a few times
|
|
for i in range(n):
|
|
for i in range(len(data)):
|
|
data[i] = data[i]
|
|
gc.collect()
|
|
|
|
# print whether the data remains intact and indicate we are finished
|
|
with lock:
|
|
print(list(data) == list(range(256)))
|
|
global n_finished
|
|
n_finished += 1
|
|
|
|
|
|
lock = _thread.allocate_lock()
|
|
n_thread = 4
|
|
n_finished = 0
|
|
|
|
# spawn threads
|
|
for i in range(n_thread):
|
|
_thread.start_new_thread(thread_entry, (10,))
|
|
|
|
# busy wait for threads to finish
|
|
while n_finished < n_thread:
|
|
pass
|