multi-threaded python code example
Example: Python3 - Multi Threaded Programming
import queue
import threading
import time
exitFlag = 0
class myThread (threading.Thread):
def __init__(self, threadID, name, q):
threading.Thread.__init__(self)
self.threadID = threadID
self.name = name
self.q = q
def run(self):
print ("Starting " + self.name)
process_data(self.name, self.q)
print ("Exiting " + self.name)
def process_data(threadName, q):
while not exitFlag:
queueLock.acquire()
if not workQueue.empty():
data = q.get()
queueLock.release()
print ("%s processing %s" % (threadName, data))
else:
queueLock.release()
time.sleep(1)
threadList = ["Thread-1", "Thread-2", "Thread-3"]
nameList = ["One", "Two", "Three", "Four", "Five"]
queueLock = threading.Lock()
workQueue = queue.Queue(10)
threads = []
threadID = 1
for tName in threadList:
thread = myThread(threadID, tName, workQueue)
thread.start()
threads.append(thread)
threadID += 1
queueLock.acquire()
for word in nameList:
workQueue.put(word)
queueLock.release()
while not workQueue.empty():
pass
exitFlag = 1
for t in threads:
t.join()
print ("Exiting Main Thread")