circuitpython/tests/thread/thread_lock2.py

25 lines
465 B
Python

# test _thread lock objects with multiple threads
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
try:
import utime as time
except ImportError:
import time
import _thread
lock = _thread.allocate_lock()
def thread_entry():
lock.acquire()
print('have it')
lock.release()
# spawn the threads
for i in range(4):
_thread.start_new_thread(thread_entry, ())
# wait for threads to finish
time.sleep(1)
print('done')