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Python-for-Geeks/Chapter7/multiprocessing/process4.py
T
2021-03-31 09:22:38 +04:00

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Python

# process4.py to use shared memory using the server process
import multiprocessing
from multiprocessing import Process
def insert_data (dict1, code, subject):
dict1[code] = subject
def output(dict1):
print("Dictionary data: ", dict1)
with multiprocessing.Manager() as mgr:
# create a dictionary in the server process
mydict = mgr.dict({100: "Maths", 200: "Science"})
p1 = Process(target=insert_data, args=(mydict, 300, "English"))
p2 = Process(target=insert_data, args=(mydict, 400, "French"))
p3 = Process(target=output, args=(mydict,))
p1.start()
p2.start()
p1.join()
p2.join()
p3.start()
p3.join()
print("Exiting the main process")