# tuple_ctypes_clockit.py

# tuple_ctypes_timeit.py

from multiprocessing import Process, Lock
from multiprocessing.sharedctypes import Value, Array
from ctypes import Structure, c_double
from random import randint
from time import clock as ttt

t = 100000
def rXY():
    return (randint(0,800), randint(0,1280))
L = [rXY() for z in range(t)]

class Point(Structure):
    _fields_ = [('x', c_double), ('y', c_double)]

def ct(A):
    for a in A:
        a.x = 2
        a.y = 4

def py(B):
    for b in range(len(B)):
        B[b] = 3,6

if __name__ == '__main__':

    lock = Lock()
    A = [Array(Point, L[:], lock=lock)]
    B = L[:]

    start = ttt()
    py(B)
    stop = ttt()
    print (stop-start)

    p = Process(target=ct, args=(A))

    start = ttt()
    p.start()
    p.join()
    stop = ttt()
    print (stop-start)