web3-starter-py/Concurrence_examples/safe_thread_example.py
2020-03-03 23:24:17 -08:00

26 lines
No EOL
346 B
Python

#!/usr/bin/env python3
import threading
counter = 0
threads = []
lock = threading.Lock()
def count_with_lock():
global counter
for _ in range(100):
with lock:
counter += 1
for _ in range(100):
thread = threading.Thread(target=count_with_lock)
thread.start()
threads.append(thread)
print(counter)