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
|
# test thread coordination using a lock object
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
import _thread
lock = _thread.allocate_lock()
n_thread = 10
n_finished = 0
def thread_entry(idx):
global n_finished
while True:
with lock:
if n_finished == idx:
break
print("my turn:", idx)
with lock:
n_finished += 1
# spawn threads
for i in range(n_thread):
_thread.start_new_thread(thread_entry, (i,))
# busy wait for threads to finish
while n_finished < n_thread:
pass
|
