python自定义线程池控制线程数量的示例

1.自定义线程池importthreadingimportQueueimporttimequeue=Queue.Queue()defput_data_in_queue():foriinxrange(10):queue

1.自定义线程池

import threading
import Queue
import time
 
queue = Queue.Queue()
 
 
def put_data_in_queue():
 for i in xrange(10):
 queue.put(i)
 
 
class MyThread(threading.Thread):
 def run(self):
 while not queue.empty():
 sleep_times = queue.get()
 time.sleep(sleep_times)
 queue.task_done()
 
 
def main_function():
 threads_num = 6
 while True:
 put_data_in_queue()
 for i in xrange(threads_num):
 myThread = MyThread()
 myThread.setDaemon(True)
 myThread.start()
 queue.join()
 time.sleep(60)

2.多线程与signal信号的监控结合

import threading
import Queue
import time
import signal
 
queue = Queue.Queue()
stop = False
 
 
def receive_signal(signum, stack):
 signal.signal(signal.SIGTERM, original_sigterm)
 global stop
 stop = True
 
 
def put_data_in_queue():
 for i in xrange(10):
 queue.put(i)
 
 
class MyThread(threading.Thread):
 def run(self):
 while not queue.empty():
 sleep_times = queue.get()
 time.sleep(sleep_times)
 queue.task_done()
 
 
def main_function():
 threads_num = 6
 while not stop:
 put_data_in_queue()
 for i in xrange(threads_num):
 myThread = MyThread()
 myThread.setDaemon(True)
 myThread.start()
 queue.join()
 time.sleep(60)
 
 
if __name__ == "__main__":
 original_sigterm = signal.getsignal(signal.SIGTERM)
 signal.signal(signal.SIGTERM, receive_signal)
 main_function()

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