Hello,
I am building a server program. I have seen some examples like the following:
import pickle
import Queue
import socket
import threading
# We'll pickle a list of numbers, yet again:
someList = [ 1, 2, 7, 9, 0 ]
pickledList = pickle.dumps ( someList )
# A revised version of our thread class:
class ClientThread ( threading.Thread ):
# Note that we do not override Thread's __init__ method.
# The Queue module makes this not necessary.
def run ( self ):
# Have our thread serve "forever":
while True:
# Get a client out of the queue
client = clientPool.get()
# Check if we actually have an actual client in the client variable:
if client != None:
print 'Received connection:', client [ 1 ] [ 0 ]
client [ 0 ].send ( pickledList )
for x in xrange ( 10 ):
print client [ 0 ].recv ( 1024 )
client [ 0 ].close()
print 'Closed connection:', client [ 1 ] [ 0 ]
# Create our Queue:
clientPool = Queue.Queue ( 0 )
# Start two threads:
for x in xrange ( 2 ):
ClientThread().start()
# Set up the server:
server = socket.socket ( socket.AF_INET, socket.SOCK_STREAM )
server.bind ( ( '', 2727 ) )
server.listen ( 5 )
# Have the server serve "forever":
while True:
clientPool.put ( server.accept() )
Since the server main thread and child thread will run forever, my question is
how can I exit the server nicely in the program when it is required (e.g no
clients coming for a while) rather than using 'Ctrl-c' or kill the process.
another question is: Is that when the main thread is killed, then the child
thread will stop as well? In this case, before killing the main thread, we have
to make sure the child thread already finish its job. But how the main thread
know whether the child thread finish the job or not. in other words, how does
the main thread communicate the child thread?
Anybody know? Thanks in advance!
Best Wishes,
Wendy Yang
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