Multiple threads producing/consuming values.
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from Queue import Queue
import threading
import random
import time
class ProduceToQueue( threading.Thread ):
def __init__( self, threadName, queue ):
threading.Thread.__init__( self, name = threadName )
self.sharedObject = queue
def run( self ):
for i in range( 11, 21 ):
time.sleep( random.randrange( 4 ) )
print "%s adding %s to queue" % ( self.getName(), i )
self.sharedObject.put( i )
print self.getName(), "finished producing values"
print "Terminating", self.getName()
class ConsumeFromQueue( threading.Thread ):
def __init__( self, threadName, queue ):
threading.Thread.__init__( self, name = threadName )
self.sharedObject = queue
def run( self ):
sum = 0
current = 10
for i in range( 10 ):
time.sleep( random.randrange( 4 ) )
print "%s attempting to read %s..." % ( self.getName(), current + 1 )
current = self.sharedObject.get()
print "%s read %s" % ( self.getName(), current )
sum += current
print "%s retrieved values totaling: %d" % ( self.getName(), sum )
print "Terminating", self.getName()
queue = Queue()
producer = ProduceToQueue( "Producer", queue )
consumer = ConsumeFromQueue( "Consumer", queue )
producer.start()
consumer.start()
producer.join()
consumer.join()
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