apppublic/appPublic/thread_workers.py
2023-02-23 15:17:24 +08:00

42 lines
878 B
Python
Executable File

import time
import threading
import random
from appPublic.background import Background
class ThreadWorkers:
def __init__(self, max_workers=10):
self.semaphore = threading.Semaphore(value=max_workers)
self.co_worker = 0
def _do(self, func, *args, **kwargs):
try:
self.semaphore.acquire()
self.co_worker += 1
func(*args, **kwargs)
finally:
self.co_worker -= 1
self.semaphore.release()
def do(self, func, *args, **kwargs):
b = Background(self._do, func, *args, **kwargs)
b.start()
def get_workers(self):
return self.co_worker
def until_done(self):
time.sleep(0.1)
while self.co_worker > 0:
time.sleep(0.01)
if __name__ == '__main__':
def k(worker):
t = random.randint(1,4)
print('current workers=',worker.get_workers(), 'sleep=', t)
time.sleep(t)
w = ThreadWorkers(max_workers=30)
for i in range(100000):
w.do(k, w)