42 lines
940 B
Python
Executable File
42 lines
940 B
Python
Executable File
"""
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Multiprocessing
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crear y detener procesos
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compartir datos entre proscesos
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uso de 'lock' para prevenir 'race-conditions'
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uso de 'queue'
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administrar multiples procesos
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"""
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from multiprocessing import Process, Array, Lock
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import time
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def add_100(numeros, lock):
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for i in range(100):
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time.sleep(0.01)
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for i in range(len(numeros)):
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with lock:
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numeros[i] += 1
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if __name__ == "__main__":
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lock = Lock()
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array_compartido = Array('d', [0.0, 100.0, 200.0] ) # double
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print('Arreglo al comienzo: ', array_compartido[:])
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p1 = Process(target=add_100, args=(array_compartido, lock))
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p2 = Process(target=add_100, args=(array_compartido, lock))
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p1.start()
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p2.start()
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p1.join()
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p2.join()
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print('Arreglo al final: ', array_compartido[:])
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"""
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Arreglo al comienzo: [0.0, 100.0, 200.0]
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Arreglo al final: [200.0, 300.0, 400.0]
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"""
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