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

37 lines
866 B
Python
Executable File

import time
from multiprocessing import Process
import threading
import random
from appPublic.background import Background
class ProcessWorkers:
def __init__(self, worker_cnt=10):
self.semaphore = threading.Semaphore(value=worker_cnt)
self.co_worker = 0
def _do(self, func, *args, **kwargs):
self.semaphore.acquire()
self.co_worker += 1
p = Process(target=func, args=args, kwargs=kwargs)
p.start()
p.join()
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
if __name__ == '__main__':
def k(worker):
t = random.randint(1,4)
print('current workers=',worker.get_workers(), 'sleep=', t)
time.sleep(t)
w = ProcessWorkers()
for i in range(100):
w.do(k, w)