def test():
NUMBER_OF_PROCESSES = 4
TASKS1 = [(mul, (i, 7)) for i in range(20)]
TASKS2 = [(plus, (i, 8)) for i in range(10)]
# Create queues
task_queue = Queue()
done_queue = Queue()
# Submit tasks
task_queue.putMany(TASKS1)
# Start worker processes
for i in range(NUMBER_OF_PROCESSES):
Process(target=worker, args=(task_queue, done_queue)).start()
# Get and print results
print 'Unordered results:'
for i in range(len(TASKS1)):
print '\t', done_queue.get()
# Add more tasks using `put()` instead of `putMany()`
for task in TASKS2:
task_queue.put(task)
# Get and print some more results
for i in range(len(TASKS2)):
print '\t', done_queue.get()
# Tell child processes to stop
for i in range(NUMBER_OF_PROCESSES):
task_queue.put('STOP')
def load(): queue=Queue() hostfile_line=open(sys.argv[2],'r').readlines() source=sys.argv[3] destdir=sys.argv[4] for hostfile in hostfile_line: eachline=hostfile.split() queue.put(eachline) eachline=Process(target=TRANS,args=(queue.get(),source,destdir)) eachline.start() eachline.join()
def exe():
queue=Queue()
hostfile_line=open(sys.argv[2],'r').readlines()
command_file=open(sys.argv[3],'r').readlines()
for command_line in command_file:
command_list=command_line.split('\n')
command=''.join(command_list)
for hostfile in hostfile_line:
eachline=hostfile.split()
queue.put(eachline)
eachline=Process(target=SSH,args=(queue.get(),str(command)))
eachline.start()
eachline.join()
ips = IP("10.0.1.0/24")
def f(i, q):
while True:
if q.empty():
sys.exit()
print "Process Number: %s" % i
ip = q.get()
ret = subprocess.call("ping -c 1 %s" % ip,
shell=True,
stdout=open('/dev/null', 'w'),
stderr=subprocess.STDOUT)
if ret == 0:
print "%s: is alive" % ip
else:
print "Process Number: %s didn't find a response for %s" % (i, ip)
for ip in ips:
q.put(ip)
#q.put("192.168.1.1")
for i in range(50):
p = Process(target=f, args=[i, q])
p.start()
print "main process joins on queue"
p.join()
print "Main Program finished"
stderr=subprocess.STDOUT)
# Check return value; if else than zero inform user
if retVal == 0:
mf.Cout("Process #%s is alive." % (iProcess))
else:
mf.Cout("Process #%s is not responding for IP Address %s." %
(iProcess, ip))
if __name__ == "__main__":
mf.StopWatchStart()
# Loop over all IP addresses
for ip in ipAddresses:
# Put an item into the queue
queue.put(ip)
# Loop over a given number of processes;
for iProcess in range(nProcesses):
# Create process
p = Process(target=f, args=[iProcess, queue])
# Start process
p.start()
mf.Cout("Main process joins on queue.")
# Join procees to on queue so that all processes are gotten and processed before exiting the program.
p.join()
mf.Cout("Main program finished.")
#timer.sleep(5)
mf.StopWatchStop()
#-*- coding: utf-8 -*-
from processing import Process, Queue
import time
def f(q):
x = q.get()
print 'Process Number %s, sleeps for %s seconds' % (x, x)
time.sleep(x)
print 'Process Number %s finished' % x
q = Queue()
for i in range(10):
q.put(i)
p = Process(target=f, args=[q])
p.start()
print 'main process joins on queue'
p.join()
'''
为什么
main process joins on queue
出现的位置不固定，
难道是因为给进程分配资源需要时间而导致的么？？？
'''
print 'main process finished'
import subprocess
from IPy import IP
import sys
q = Queue()
ips = IP("10.0.1.0/24")
def f(i,q):
while True:
if q.empty():
sys.exit()
print "Process Number: %s" %i
ip = q.get()
ret = subprocess.call("ping -c 1 %s"%ip, shell=True,stdout=open('/dev/null','w'),stderr = subprocess.STDOUT)
if ret == 0 :
print "%s: is alive"%ip
else:
print "Process Number: %s didn't find a response for %s"%(i,ip)
for ip in ips:
q.put(ip)
#q.put("192.168.1.1")
for i in range(50):
p = Process(target=f, args=[i,q])
p.start()
print "main process joins on queue"
p.join()
print "Main Program finished"
def algo(request, algo):
text = ""
type = ""
algo_object = get_object_or_404(Algo, shortTitle=algo)
manual = get_object_or_404(ManPage, algo=algo_object)
embedFormDict = { 'cpt' : CPTEmbedForm,
'f5' : F5EmbedForm,
'lsb' : LsbEmbedForm,
'gifshuffle' : GifShuffleEmbedForm,
'bs' : BattlestegEmbedForm, }
extractFormDict = { 'cpt' : CPTExtractForm,
'f5' : F5ExtractForm,
'lsb' : LsbExtractForm,
'gifshuffle' : GifShuffleExtractForm,
'bs' : BattlestegExtractForm, }
typeDict = { 'cpt' : "png",
'f5' : "jpeg",
'lsb' : "png",
'gifshuffle' : "gif",
'bs' : "png", }
if request.method == 'POST':
q = Queue()
# embedding
if "submit1" in request.POST:
algoDict = { 'cpt' : cptEmbed,
'f5' : f5Embed,
'lsb' : lsbEmbed,
'gifshuffle' : gifShuffleEmbed,
'bs' : bsEmbed, }
embedForm = embedFormDict[algo](request.POST, request.FILES)
extractForm = extractFormDict[algo]()
type = typeDict[algo]
p = Process(target=algoDict[algo], args=(q, ))
# fork process to embed
if embedForm.is_valid():
p.start()
q.put([request.POST, request.FILES['file'].temporary_file_path()])
os.system("sleep 1")
try:
retval = q.get(True, 10)
except Q.Empty:
retval = -2
p.join()
if retval == -1:
text += "%s-Datei nicht gefunden oder fehlerhaft."%(type)
elif retval == -2:
text += "Fehler beim Einbetten. Anderes Bild oder andere Parameter versuchen."
else:
return createResponse(retval, type)
# extracting
elif "submit2" in request.POST:
algoDict = { 'cpt' : cptExtract,
'f5' : f5Extract,
'lsb' : lsbExtract,
'gifshuffle' : gifShuffleExtract,
'bs' : bsExtract, }
embedForm = embedFormDict[algo]()
extractForm = extractFormDict[algo](request.POST, request.FILES)
type = typeDict[algo]
p = Process(target=algoDict[algo], args=(q, ))
# fork process to extract
if extractForm.is_valid():
p.start()
q.put([request.POST, request.FILES['file'].temporary_file_path()])
try:
retval = q.get(True, 10)
except Q.Empty:
retval = -2
p.join()
if retval == -1:
text += "%s-Datei nicht gefunden oder fehlerhaft."%(type)
elif retval == -2:
text += "Fehler beim Ausbetten. Anderes Bild oder andere Parameter versuchen."
else:
#print retval
text += retval
# empty form
else:
embedForm = embedFormDict[algo]()
extractForm = extractFormDict[algo]()
# render
return render_to_response("stego_algo.html", {'algo' : algo_object,
'embedForm' : embedForm,
'extractForm' : extractForm,
'text' : text,
'algo_type' : 'Staganographie',
'manual' : manual,})
#!/usr/bin/env python
from processing import Process, Queue
import time
def f(q):
x = q.get()
print "Process number %s, sleeps for %s seconds" % (x,x)
time.sleep(x)
print "Process number %s finished" % x
q = Queue()
for i in range(10):
q.put(i)
i = Process(target=f, args=[q])
i.start()
print "main process joins on queue"
i.join()
print "Main Program finished"
# All other required modules here
from processing import Process, Queue
import time
def f(queue):
x = queue.get()
mf.Cout("Process number %s, sleeps for %s seconds" % (x,x))
time.sleep(x)
mf.Cout("Process number %s finished" % (x))
if __name__ == "__main__":
mf.StopWatchStart()
# Create a queue object
queue = Queue()
# Create 10 processes
for i in range(10):
# Put an item into the queue. 10 queues in total
queue.put(i)
# Declare the process
mf.Cout("Creating process #%s" % (i))
i = Process(target = f, args=[queue]) #for a Thread: threading.Thread(target = f, args=(queue)) => Similar structure
# Start the process
i.start()
mf.Cout("Main process joins on queue")
# Block process until all items in the Queue have been gotten and processed
i.join()
mf.Cout("Main program finished")
mf.StopWatchStop()