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In Python code:
Put the thread_function on a thread. Put 3 threads into a queue and run the threads.
import queue
queue = queue.Queue
def thread_function(name):
print("Thread %s: starting", name)
time.sleep(2)
print("Thread %s: finishing", name)
# start threads by passing function to Thread constructor
from pprint import pprint
import threading
import time
def threadfunc(*t):
print(">>>>",*t)
time.sleep(1)
print('[',*t,']')
time.sleep(2)
print("<<<<",*t)
arg1 = ("AAAAAAAA")
threadA = threading.Thread(target=threadfunc,args=arg1)
threadA.start()
arg2 = ("BBBBBBBB")
threadB = threading.Thread(target=threadfunc,args=arg2)
threadB.start()
arg3 = ("CCCCCCCC")
threadC = threading.Thread(target=threadfunc,args=arg3)
threadC.start()
threadA.join()
threadB.join()
threadC.join()
# multiple threads
import threading
import time
tnames = ('AAAAAAAA','BBBBBBBB','CCCCCCCC')
count = len(tnames)
threadlist = []
count = 3
def threadfunc(*t):
print(">>>>",*t)
time.sleep(1)
print('[',*t,']')
time.sleep(2)
print("<<<<",*t)
def threadList():
for index in range(count):
targ = (tnames[index])
thread = threading.Thread(target=threadfunc,args=targ)
print("inserting "+targ)
threadlist.append(thread)
for index in range(count):
print("starting "+tnames[index])
threadlist[index].start()
for index in range(count):
print("joining "+tnames[index])
threadlist[index].join()
threadList()
# thread inheritance
import threading
import time
tnames = ('AAAAAAAA','BBBBBBBB','CCCCCCCC')
count = len(tnames)
threadlist = []
count = 3
def threadfunc(*t):
print(">>>>",*t)
time.sleep(1)
print('[',*t,']')
time.sleep(2)
print("<<<<",*t)
class TimeThread (threading.Thread):
def __init__(self, threadID, name):
threading.Thread.__init__(self)
self.threadID = threadID
self.name = name
def run(self):
threadfunc(self.name)
for index in range(count):
print("inserting "+tnames[index])
threadlist.append(TimeThread(index+1, tnames[index]))
# Start new Threads
for index in range(count):
print("starting "+threadlist[index].name)
threadlist[index].start()
# Join Threads
for index in range(count):
print("joining "+threadlist[index].name)
threadlist[index].join()
print("Exiting Main Thread")
# thread queue
import queue
import threading
import time
exitFlag = False
def threadfunc(threadName, que):
print('>>>>'+threadName)
time.sleep(1)
while not exitFlag:
if not workQueue.empty():
data = que.get()
print('[',*data,']')
time.sleep(2)
print('<<<<'+threadName)
class TimeThread (threading.Thread):
def __init__(self, name, q):
threading.Thread.__init__(self)
self.name = name
self.que = q
def run(self):
print("Starting " + self.name)
threadfunc(self.name, self.que)
print("Exiting " + self.name)
threadList = ["AAAAAAAA", "BBBBBBBB", "CCCCCCCC"]
nameList = ["Alpha", "Beta", "Gamma"]
workQueue = queue.Queue(len(nameList))
threads = []
# Create new threads
for tName in threadList:
thread = TimeThread(tName, workQueue)
thread.start()
threads.append(thread)
# Fill the queue
for word in nameList:
print("inserting word "+word+" into queue")
workQueue.put(word)
# Wait for queue to empty
while not workQueue.empty():
pass
# Notify threads it's time to exit
exitFlag = True
# Wait for all threads to complete
for thread in threads:
thread.join()
print("Exiting Main Thread")
# queue lock
import queue
import threading
import time
exitFlag = False
threadList = ["AAAAAAAA", "BBBBBBBB", "CCCCCCCC"]
nameList = ["Alpha", "Beta", "Gamma"]
queueLock = threading.Lock()
workQueue = queue.Queue(3)
threads = []
def threadfunc(threadName, q):
print('>>>>'+threadName)
time.sleep(1)
while not exitFlag:
if not workQueue.empty():
queueLock.acquire()
data = q.get()
print('[',*data,']')
queueLock.release()
time.sleep(2)
print('<<<<'+threadName)
class TimeThread (threading.Thread):
def __init__(self, name, q):
threading.Thread.__init__(self)
self.name = name
self.q = q
def run(self):
print("Starting " + self.name)
threadfunc(self.name, self.q)
print("Exiting " + self.name)
# Create new threads
for tName in threadList:
thread = TimeThread(tName, workQueue)
threads.append(thread)
thread.start()
# Fill the queue
queueLock.acquire()
for word in nameList:
print("inserting word "+word+" into queue")
workQueue.put(word)
queueLock.release()
# Wait for queue to empty
while not workQueue.empty():
pass
# Notify threads it's time to exit
exitFlag = True
# Wait for all threads to complete
for thread in threads:
thread.join()
print("Exiting Main Thread")
The source code of the program
import queue
queue = queue.Queue
def thread_function(name):
print("Thread %s: starting", name)
time.sleep(2)
print("Thread %s: finishing", name)
# start threads by passing function to Thread constructor
from pprint import pprint
import threading
import time
def threadfunc(*t):
print(">>>>",*t)
time.sleep(1)
print('[',*t,']')
time.sleep(2)
print("<<<<",*t)
arg1 = ("AAAAAAAA")
threadA = threading.Thread(target=threadfunc,args=arg1)
threadA.start()
arg2 = ("BBBBBBBB")
threadB = threading.Thread(target=threadfunc,args=arg2)
threadB.start()
arg3 = ("CCCCCCCC")
threadC = threading.Thread(target=threadfunc,args=arg3)
threadC.start()
threadA.join()
threadB.join()
threadC.join()
# multiple threads
import threading
import time
tnames = ('AAAAAAAA','BBBBBBBB','CCCCCCCC')
count = len(tnames)
threadlist = []
count = 3
def threadfunc(*t):
print(">>>>",*t)
time.sleep(1)
print('[',*t,']')
time.sleep(2)
print("<<<<",*t)
def threadList():
for index in range(count):
targ = (tnames[index])
thread = threading.Thread(target=threadfunc,args=targ)
print("inserting "+targ)
threadlist.append(thread)
for index in range(count):
print("starting "+tnames[index])
threadlist[index].start()
for index in range(count):
print("joining "+tnames[index])
threadlist[index].join()
threadList()
# thread inheritance
import threading
import time
tnames = ('AAAAAAAA','BBBBBBBB','CCCCCCCC')
count = len(tnames)
threadlist = []
count = 3
def threadfunc(*t):
print(">>>>",*t)
time.sleep(1)
print('[',*t,']')
time.sleep(2)
print("<<<<",*t)
class TimeThread (threading.Thread):
def __init__(self, threadID, name):
threading.Thread.__init__(self)
self.threadID = threadID
self.name = name
def run(self):
threadfunc(self.name)
for index in range(count):
print("inserting "+tnames[index])
threadlist.append(TimeThread(index+1, tnames[index]))
# Start new Threads
for index in range(count):
print("starting "+threadlist[index].name)
threadlist[index].start()
# Join Threads
for index in range(count):
print("joining "+threadlist[index].name)
threadlist[index].join()
print("Exiting Main Thread")
# thread queue
import queue
import threading
import time
exitFlag = False
def threadfunc(threadName, que):
print('>>>>'+threadName)
time.sleep(1)
while not exitFlag:
if not workQueue.empty():
data = que.get()
print('[',*data,']')
time.sleep(2)
print('<<<<'+threadName)
class TimeThread (threading.Thread):
def __init__(self, name, q):
threading.Thread.__init__(self)
self.name = name
self.que = q
def run(self):
print("Starting " + self.name)
threadfunc(self.name, self.que)
print("Exiting " + self.name)
threadList = ["AAAAAAAA", "BBBBBBBB", "CCCCCCCC"]
nameList = ["Alpha", "Beta", "Gamma"]
workQueue = queue.Queue(len(nameList))
threads = []
# Create new threads
for tName in threadList:
thread = TimeThread(tName, workQueue)
thread.start()
threads.append(thread)
# Fill the queue
for word in nameList:
print("inserting word "+word+" into queue")
workQueue.put(word)
# Wait for queue to empty
while not workQueue.empty():
pass
# Notify threads it's time to exit
exitFlag = True
# Wait for all threads to complete
for thread in threads:
thread.join()
print("Exiting Main Thread")
# queue lock
import queue
import threading
import time
exitFlag = False
threadList = ["AAAAAAAA", "BBBBBBBB", "CCCCCCCC"]
nameList = ["Alpha", "Beta", "Gamma"]
queueLock = threading.Lock()
workQueue = queue.Queue(3)
threads = []
def threadfunc(threadName, q):
print('>>>>'+threadName)
time.sleep(1)
while not exitFlag:
if not workQueue.empty():
queueLock.acquire()
data = q.get()
print('[',*data,']')
queueLock.release()
time.sleep(2)
print('<<<<'+threadName)
class TimeThread (threading.Thread):
def __init__(self, name, q):
threading.Thread.__init__(self)
self.name = name
self.q = q
def run(self):
print("Starting " + self.name)
threadfunc(self.name, self.q)
print("Exiting " + self.name)
# Create new threads
for tName in threadList:
thread = TimeThread(tName, workQueue)
threads.append(thread)
thread.start()
# Fill the queue
queueLock.acquire()
for word in nameList:
print("inserting word "+word+" into queue")
workQueue.put(word)
queueLock.release()
# Wait for queue to empty
while not workQueue.empty():
pass
# Notify threads it's time to exit
exitFlag = True
# Wait for all threads to complete
for thread in threads:
thread.join()
print("Exiting Main Thread")
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