1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
# 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
|
